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  <optt:ChangesOnValueOfWarrantLiabilityTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-28">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 83%; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="4"&gt;Fair Value Measurement Using Significant Unobservable Inputs ( Level 3)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Total&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Warrant &lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Liability&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 16%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Fair value &amp;#x2013; April 30, 2016&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Issuance&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1,814 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Transfers&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Change in fair value&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(1,491&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Fair value &amp;#x2013; April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;323 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 81%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 16%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Change in fair value&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(37&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Fair value &amp;#x2013; July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;286 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</optt:ChangesOnValueOfWarrantLiabilityTableTextBlock>
  <optt:ClassOfWarrantOrRightExpirationPeriod contextRef="d_2016-06-02_2016-06-02_SubsidiarySaleOfStockAxis-PurchaseAgreementMember" id="c20670181">P5Y</optt:ClassOfWarrantOrRightExpirationPeriod>
  <optt:ClassOfWarrantOrRightExpirationPeriod contextRef="d_2016-07-22_2016-07-22_SubsidiarySaleOfStockAxis-PurchaseAgreementMember" id="c20670190">P5Y</optt:ClassOfWarrantOrRightExpirationPeriod>
  <optt:CustomerAdvancesAndDepositsDisclosureTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633152">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5&lt;/div&gt;)&amp;nbsp;Deferred Credits Payable&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;During the year ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;30,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2001,&lt;/div&gt; in connection with the sale of common stock to an investor, the Company received &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.6&lt;/div&gt; million from the investor in exchange for an option to purchase up to &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;500,000&lt;/div&gt; metric tons of carbon emissions credits generated by the Company during the years &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2008&lt;/div&gt; through &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2012,&lt;/div&gt; at a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;30%&lt;/div&gt; discount from the then-prevailing market rate. If the Company received emission credits under applicable laws and failed to sell to the investor the credits up to the full amount of emission credits covered by the option, the investor was entitled to liquidated damages equal to &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;30%&lt;/div&gt; of the aggregate market value of the shortfall in emission credits (subject to a limit on the market price of emission credits).&amp;nbsp;&amp;nbsp;Under the terms of the agreement, if the Company did &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; become entitled under applicable laws to the full amount of emission credits covered by the option by &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;31,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2012,&lt;/div&gt; the Company was obligated to return the option fee of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.6&lt;/div&gt; million, less the aggregate discount on any emission credits sold to the investor prior to such date. In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 2012, &lt;/div&gt;the Company and the investor agreed to extend the period for the sale of emission credits until &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 31, 2017. &lt;/div&gt;As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; generated any emissions credits eligible for purchase under the agreement. As a result, the Company anticipates returning the option fee of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.6&lt;/div&gt; million. Therefore, the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.6&lt;/div&gt; million is reflected in the consolidated balance sheets within &amp;#x201c;Deferred credits payable current&amp;#x201d; as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017, &lt;/div&gt;respectively.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</optt:CustomerAdvancesAndDepositsDisclosureTextBlock>
  <optt:DeferredCreditsPayableMarketDiscountRate contextRef="i_2001-04-30" decimals="1" id="c20670452" unitRef="utr-rate">0.3</optt:DeferredCreditsPayableMarketDiscountRate>
  <optt:DeferredCreditsPayableMarketLiquidatedDamagesRate contextRef="i_2001-04-30" decimals="1" id="c20670453" unitRef="utr-rate">0.3</optt:DeferredCreditsPayableMarketLiquidatedDamagesRate>
  <optt:DeferredCreditsPayableOptionDetails contextRef="i_2001-04-30" decimals="INF" id="c20670449" unitRef="utr-t">500000</optt:DeferredCreditsPayableOptionDetails>
  <optt:ForeignTaxExaminationRefund contextRef="i_2017-01-31_IncomeTaxAuthorityAxis-ForeignCountryMember_IncomeTaxAuthorityNameAxis-TaxAuthoritySpainMember" decimals="INF" id="c20670708" unitRef="iso4217-usd">-200000</optt:ForeignTaxExaminationRefund>
  <optt:InputTax contextRef="d_2012-06-01_2012-06-30_IncomeTaxAuthorityAxis-ForeignCountryMember_IncomeTaxAuthorityNameAxis-TaxAuthoritySpainMember" decimals="INF" id="c20670703" unitRef="iso4217-usd">300000</optt:InputTax>
  <optt:LiquidityPolicyTextBlock contextRef="d_2017-05-01_2017-07-31" id="c20670145">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 100%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;&lt;tr&gt;&lt;td style="WIDTH: 4%; VERTICAL-ALIGN: top"&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;c)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 96%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Liquidity/Going Concern&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The consolidated financial statements have been prepared assuming the Company will continue as a going concern. The Company has experienced substantial and recurring losses from operations, which have contributed to an accumulated deficit of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$190.0&lt;/div&gt; million as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017. &lt;/div&gt;As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company had approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$11.4&lt;/div&gt; million in cash and cash equivalents on hand. The Company generated revenues of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.2&lt;/div&gt;&lt;/div&gt; million during each of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016.&lt;/div&gt; Based on the Company&amp;#x2019;s cash and cash equivalents and marketable securities as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company believes that it will be able to finance its capital requirements and operations into the quarter ending &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2018. &lt;/div&gt;The Company will require additional equity and/or debt financing to continue its operations. The Company cannot provide assurances that it will be able to secure additional funding when needed or at all, or, if secured, that such funding would be on favorable terms. These factors raise substantial doubt about the Company&amp;#x2019;s ability to continue as a going concern.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The consolidated financial statements do &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; include any adjustments relating to the recoverability and classification of recorded assets amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Management is evaluating different strategies to obtain the required additional funding for future operations. These strategies &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;include, but are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; limited to, additional funding from current or new investors, officers and directors; borrowings of debt; a public offering of the Company&amp;#x2019;s equity or debt securities; partnerships and/or collaborations. There can be &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; assurance that any of these future-funding efforts will be successful.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017&lt;/div&gt; and the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company has continued to make investments in ongoing product development efforts in anticipation of future growth. The Company&amp;#x2019;s future results of operations involve significant risks and uncertainties. Factors that could affect the Company&amp;#x2019;s future operating results and cause actual results to vary materially from expectations include, but are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; limited to, risks from lack of available financing and insufficient capital, performance of PowerBuoys,&lt;/div&gt; &lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;its inability to market and commercialize its PowerBuoys, technology development, scalability of technology and production, dependence on skills of key personnel, concentration of customers and suppliers, deployment risks and laws, regulations and permitting. In order to continue to implement its business strategy, the Company requires additional equity and/or debt financing. The Company closed &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;four&lt;/div&gt;&lt;/div&gt; equity financing arrangements during the year ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017. &lt;/div&gt;The Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; currently have any committed sources of debt or equity financing, and the Company cannot assure that additional equity and/or debt financing will be available to the Company as needed on acceptable terms, or at all. Historically, the Company has raised capital through securities sales in the public capital markets. If sufficient additional financing is &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; obtained when needed, the Company &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be required to further curtail or limit operations, product development costs, and/or selling, general and administrative activities in order to reduce its cash expenditures. This could cause the Company to be unable to execute its business plan, take advantage of future opportunities and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;cause it to scale back, delay or eliminate some or all of its product development activities and/or reduce the scope of or cease its operations.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 2, 2016, &lt;/div&gt;the Company entered into a securities purchase agreement, which was amended on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 7, 2016 (&lt;/div&gt;as amended, the &amp;#x201c;Purchase Agreement&amp;#x201d;) with certain institutional purchasers (the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;June &lt;/div&gt;Purchasers&amp;#x201d;). Pursuant to the terms of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June &lt;/div&gt;Purchase Agreement, the Company sold an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;417,000&lt;/div&gt; shares of Common Stock together with warrants to purchase up to an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;145,952&lt;/div&gt; shares of Common Stock. Each share of Common Stock was sold together with a warrant to purchase &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.35&lt;/div&gt; of a share of Common Stock at a combined purchase price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$4.60.&lt;/div&gt; The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$1.7&lt;/div&gt; million, after deducting placement agent fees and estimated offering expenses payable by the Company, but excluding the proceeds, if any, from the exercise of the warrants issued in the offering. The warrants have an exercise price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.08&lt;/div&gt; per share, became exercisable on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 3, 2016 (&lt;/div&gt;&amp;#x201c;Initial Exercise Date&amp;#x201d;), and will expire &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;five&lt;/div&gt; years following the Initial Exercise Date.&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company paid the placement agents approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.1&lt;/div&gt; million as placement agent fees in connection with the sale of securities in the offering. The Company also reimbursed the placement agents &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$35,000&lt;/div&gt; for their out of pocket and legal expenses in connection with the offering. &amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 22, 2016, &lt;/div&gt;the Company entered into the Second Amendment to the Purchase Agreement (the &amp;#x201c;Second Amended Purchase Agreement&amp;#x201d;) with certain purchasers (the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;July &lt;/div&gt;Purchasers&amp;#x201d;). Pursuant to the terms of the Second Amended Purchase Agreement, the Company sold an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;595,000&lt;/div&gt; shares of Common Stock together with warrants to purchase up to an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;178,500&lt;/div&gt; shares of Common Stock. Each share of Common Stock was sold together with a warrant to purchase &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.30&lt;/div&gt; of a share of Common Stock at a combined purchase price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.75.&lt;/div&gt; The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$3.6&lt;/div&gt; million, after deducting placement agent fees and estimated offering expenses payable by the Company, but excluding the proceeds, if any, from the exercise of the warrants issued in the offering. The Warrants were exercisable immediately at an exercise price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$9.36&lt;/div&gt; per share. The Warrants will expire on the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;fifth&lt;/div&gt; (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5th&lt;/div&gt;) anniversary of the initial date of issuance.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; October 19, 2016, &lt;/div&gt;the Company sold &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2,760,000&lt;/div&gt; shares of common stock at a price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$2.75&lt;/div&gt; per share, which includes the sale of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;360,000&lt;/div&gt; shares of the Company&amp;#x2019;s common stock sold by the Company pursuant to the exercise, in full, of the over-allotment option by the underwriters in a public offering. The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.9&lt;/div&gt; million, after deducting underwriter fees and offering expenses payable by the Company.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 20.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 2, 2017, &lt;/div&gt;the Company sold &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;6,192,750&lt;/div&gt; shares of common stock at a price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$1.30&lt;/div&gt; per share, which includes the sale of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;807,750&lt;/div&gt; shares of the Company&amp;#x2019;s common stock sold by the Company pursuant to the exercise, in full, of the over-allotment option by the underwriters in a public offering. The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$7.2&lt;/div&gt; million, after deducting underwriter fees and offering expenses payable by the Company. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The sale of additional equity or convertible securities could result in dilution to stockholders. If additional funds are raised through the issuance of debt securities, these securities could have rights senior to those associated with the Company&amp;#x2019;s Common Stock and could contain covenants that would restrict its operations. Financing &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; be available in amounts or on terms acceptable to the Company, or at all. If the Company is unable to obtain required financing, it &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be required to reduce the scope of its operations, including its planned product development and marketing efforts, which could materially and adversely harm its financial condition and operating results. If the Company is unable to secure additional financing, it &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be forced to cease operations.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</optt:LiquidityPolicyTextBlock>
  <optt:LitigationSettlementAmountPaidByInsurer contextRef="d_2017-08-01_2017-08-31_LitigationCaseAxis-StipulationMember" decimals="INF" id="c20670686" unitRef="iso4217-usd">350000</optt:LitigationSettlementAmountPaidByInsurer>
  <optt:NumberOfFinancingAgreementsClosed contextRef="d_2016-05-01_2017-04-30" decimals="INF" id="c20670170" unitRef="xbrli-pure">4</optt:NumberOfFinancingAgreementsClosed>
  <optt:NumberOfFinancingAgreementsClosed contextRef="d_2017-05-01_2017-07-31" decimals="INF" id="c20670171" unitRef="xbrli-pure">4</optt:NumberOfFinancingAgreementsClosed>
  <optt:PricePerCommonStockAndWarrant contextRef="i_2016-06-02_SubsidiarySaleOfStockAxis-PurchaseAgreementMember" decimals="INF" id="c20670178" unitRef="iso4217-usd-per-xbrli-shares">4.60</optt:PricePerCommonStockAndWarrant>
  <optt:PricePerCommonStockAndWarrant contextRef="i_2016-07-22_SubsidiarySaleOfStockAxis-PurchaseAgreementMember" decimals="INF" id="c20670187" unitRef="iso4217-usd-per-xbrli-shares">6.75</optt:PricePerCommonStockAndWarrant>
  <optt:ScheduleOfCashCashEquivalentsAndRestrictedCashTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-18">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cash and cash equivalents&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,414 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,421 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted cash- short term&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;361 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;334 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted cash- long term&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,929 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,909 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</optt:ScheduleOfCashCashEquivalentsAndRestrictedCashTableTextBlock>
  <optt:WarrantDisclosureTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633153">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;6&lt;/div&gt;) Warrants&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 2, 2016, &lt;/div&gt;the Company entered into a securities purchase agreement, which was amended on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 7, 2016 (&lt;/div&gt;as amended, the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;June &lt;/div&gt;Purchase Agreement&amp;#x201d;) with certain institutional purchasers (the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;June &lt;/div&gt;Purchasers&amp;#x201d;). Pursuant to the terms of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June &lt;/div&gt;Purchase Agreement, the Company sold an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;417,000&lt;/div&gt; shares of Common Stock together with warrants to purchase up to an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;145,952&lt;/div&gt; shares of Common Stock. Each share of Common Stock was sold together with a warrant to purchase &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.35&lt;/div&gt; of a share of Common Stock at a combined purchase price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$4.60.&lt;/div&gt; The warrants have an exercise price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.08&lt;/div&gt; per share, became exercisable on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 3, 2016 (&lt;/div&gt;&amp;#x201c;Initial Exercise Date&amp;#x201d;), and will expire &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;five&lt;/div&gt; years following the Initial Exercise Date.&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 22, 2016, &lt;/div&gt;the Company entered into a Second Amendment to the Purchase Agreement (the &amp;#x201c;Second Amended Purchase Agreement&amp;#x201d;) with certain institutional purchasers (the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;July &lt;/div&gt;Purchasers&amp;#x201d;). Pursuant to the terms of the Second Amended Purchase Agreement, the Company sold an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;595,000&lt;/div&gt; shares of Common Stock together with warrants to purchase up to an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;178,500&lt;/div&gt; shares of Common Stock. Each share of Common Stock was sold together with a warrant to purchase &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.30&lt;/div&gt; of a share of Common Stock at a combined purchase price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.75.&lt;/div&gt; The Warrants were exercisable immediately at an exercise price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$9.36&lt;/div&gt; per share. The Warrants will expire on the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;fifth&lt;/div&gt; (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5th&lt;/div&gt;) anniversary of the initial date of issuance.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Both sets of warrants contain a feature whereby they could require the transfer of assets and therefore are classified as a liability in accordance with ASC &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;480.&lt;/div&gt; As such, the warrants with a value of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million at &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017, &lt;/div&gt;respectively, are reflected within &amp;#x201c;Warrant liabilities&amp;#x201d; in the unaudited consolidated balance sheets. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 39.6pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;An unrealized gain and unrealized loss of approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$37,000&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$752,000,&lt;/div&gt; respectively, were included within &amp;#x201c;Change in fair value of warrant liability&amp;#x201d; in the consolidated statements of operations for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; respectively. The Company determined the fair value using the Black-Scholes option pricing model with the following assumptions:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 39.6pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 8%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="3"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 8%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="3"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 72%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Dividend rate&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.0%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.0%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Risk-free rate&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.68%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.00%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected life (years)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4.0&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;-&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4.4&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5.0&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;-&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5.4&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected volatility&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;140.3%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;125.4%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt;&lt;/div&gt;</optt:WarrantDisclosureTextBlock>
  <optt:WarrantLiabilityCurrent contextRef="i_2017-07-31" decimals="-3" id="c20669928" unitRef="iso4217-usd">286000</optt:WarrantLiabilityCurrent>
  <optt:WarrantLiabilityCurrent contextRef="i_2017-04-30" decimals="-3" id="c20669929" unitRef="iso4217-usd">323000</optt:WarrantLiabilityCurrent>
  <optt:WarrantLiabilityCurrent contextRef="i_2017-07-31_FairValueByMeasurementBasisAxis-CarryingReportedAmountFairValueDisclosureMember_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsRecurringMember_FinancialInstrumentAxis-WarrantMember" decimals="-3" id="c20670652" unitRef="iso4217-usd">286000</optt:WarrantLiabilityCurrent>
  <optt:WarrantLiabilityCurrent contextRef="i_2017-07-31_FairValueByFairValueHierarchyLevelAxis-FairValueInputsLevel1Member_FairValueByMeasurementBasisAxis-EstimateOfFairValueFairValueDisclosureMember_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsRecurringMember_FinancialInstrumentAxis-WarrantMember" id="c20670653" unitRef="iso4217-usd" xs:nil="true"/>
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In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. The interim operating results are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; necessarily indicative of the results for a full year or for any other interim period. Further information on potential factors that could affect the Company's financial results can be found in the Company's Annual Report on Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-K for the year ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;filed with the Securities and Exchange Commission (&amp;#x201c;SEC&amp;#x201d;) and elsewhere in this Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-Q.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
  <us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633141">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1&lt;/div&gt;)&amp;nbsp;Background, Basis of Presentation and Liquidity&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 100%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="WIDTH: 4%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;a)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 96%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Background&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Ocean Power Technologies, Inc. (the &amp;#x201c;Company&amp;#x201d;) was founded in &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1984&lt;/div&gt; in New Jersey, commenced business operations in &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1994&lt;/div&gt; and re-incorporated in Delaware in &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2007.&lt;/div&gt; The Company is developing and commercializing its proprietary systems that generate electricity by harnessing the renewable energy of ocean waves. The Company uses proprietary technologies that convert the mechanical energy created by the heaving motion of ocean waves into electricity. The Company has designed and continues to develop the PowerBuoy product line which is based on modular, ocean-going buoys, which the Company has been periodically ocean testing since &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1997.&lt;/div&gt; The Company markets its PowerBuoys in the United States and internationally. Since fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2002,&lt;/div&gt; government agencies have accounted for a significant portion of the Company&amp;#x2019;s revenues.&amp;nbsp;&amp;nbsp;These revenues were largely for the support of product development efforts. The Company&amp;#x2019;s goal is that an increased portion of its revenues be from the sale or lease of products and maintenance services, as compared to revenue to support its product development efforts. As the Company continues to advance its proprietary technologies, it expects to continue to have a net decrease in cash from operating activities unless and until it achieves positive cash flow from the planned commercialization of products and services.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 100%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="WIDTH: 4%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;b)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 96%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Basis of Presentation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles (&amp;#x201c;GAAP&amp;#x201d;) for interim financial information and with the instructions to Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-Q and Article&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt; of Regulation&amp;nbsp;S-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;X.&lt;/div&gt; Accordingly, they do &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; include all the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. The interim operating results are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; necessarily indicative of the results for a full year or for any other interim period. Further information on potential factors that could affect the Company's financial results can be found in the Company's Annual Report on Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-K for the year ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;filed with the Securities and Exchange Commission (&amp;#x201c;SEC&amp;#x201d;) and elsewhere in this Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-Q.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 100%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="WIDTH: 4%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;c)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 96%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Liquidity/Going Concern&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The consolidated financial statements have been prepared assuming the Company will continue as a going concern. The Company has experienced substantial and recurring losses from operations, which have contributed to an accumulated deficit of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$190.0&lt;/div&gt; million as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017. &lt;/div&gt;As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company had approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$11.4&lt;/div&gt; million in cash and cash equivalents on hand. The Company generated revenues of&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.2&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;/div&gt; million during each of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016.&lt;/div&gt; Based on the Company&amp;#x2019;s cash and cash equivalents and marketable securities as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company believes that it will be able to finance its capital requirements and operations into the quarter ending &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2018. &lt;/div&gt;The Company will require additional equity and/or debt financing to continue its operations. The Company cannot provide assurances that it will be able to secure additional funding when needed or at all, or, if secured, that such funding would be on favorable terms. These factors raise substantial doubt about the Company&amp;#x2019;s ability to continue as a going concern.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The consolidated financial statements do &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; include any adjustments relating to the recoverability and classification of recorded assets amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Management is evaluating different strategies to obtain the required additional funding for future operations. These strategies &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;include, but are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; limited to, additional funding from current or new investors, officers and directors; borrowings of debt; a public offering of the Company&amp;#x2019;s equity or debt securities; partnerships and/or collaborations. There can be &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; assurance that any of these future-funding efforts will be successful.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017&lt;/div&gt; and the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company has continued to make investments in ongoing product development efforts in anticipation of future growth. The Company&amp;#x2019;s future results of operations involve significant risks and uncertainties. Factors that could affect the Company&amp;#x2019;s future operating results and cause actual results to vary materially from expectations include, but are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; limited to, risks from lack of available financing and insufficient capital, performance of PowerBuoys,&lt;/div&gt; &lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;its inability to market and commercialize its PowerBuoys, technology development, scalability of technology and production, dependence on skills of key personnel, concentration of customers and suppliers, deployment risks and laws, regulations and permitting. In order to continue to implement its business strategy, the Company requires additional equity and/or debt financing. The Company closed &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;four&lt;/div&gt;&lt;/div&gt; equity financing arrangements during the year ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017. &lt;/div&gt;The Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; currently have any committed sources of debt or equity financing, and the Company cannot assure that additional equity and/or debt financing will be available to the Company as needed on acceptable terms, or at all. Historically, the Company has raised capital through securities sales in the public capital markets. If sufficient additional financing is &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; obtained when needed, the Company &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be required to further curtail or limit operations, product development costs, and/or selling, general and administrative activities in order to reduce its cash expenditures. This could cause the Company to be unable to execute its business plan, take advantage of future opportunities and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;cause it to scale back, delay or eliminate some or all of its product development activities and/or reduce the scope of or cease its operations.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 2, 2016, &lt;/div&gt;the Company entered into a securities purchase agreement, which was amended on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 7, 2016 (&lt;/div&gt;as amended, the &amp;#x201c;Purchase Agreement&amp;#x201d;) with certain institutional purchasers (the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;June &lt;/div&gt;Purchasers&amp;#x201d;). Pursuant to the terms of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June &lt;/div&gt;Purchase Agreement, the Company sold an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;417,000&lt;/div&gt; shares of Common Stock together with warrants to purchase up to an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;145,952&lt;/div&gt; shares of Common Stock. Each share of Common Stock was sold together with a warrant to purchase &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.35&lt;/div&gt; of a share of Common Stock at a combined purchase price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$4.60.&lt;/div&gt; The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$1.7&lt;/div&gt; million, after deducting placement agent fees and estimated offering expenses payable by the Company, but excluding the proceeds, if any, from the exercise of the warrants issued in the offering. The warrants have an exercise price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.08&lt;/div&gt; per share, became exercisable on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 3, 2016 (&lt;/div&gt;&amp;#x201c;Initial Exercise Date&amp;#x201d;), and will expire &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;five&lt;/div&gt; years following the Initial Exercise Date.&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company paid the placement agents approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.1&lt;/div&gt; million as placement agent fees in connection with the sale of securities in the offering. The Company also reimbursed the placement agents &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$35,000&lt;/div&gt; for their out of pocket and legal expenses in connection with the offering. &amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 22, 2016, &lt;/div&gt;the Company entered into the Second Amendment to the Purchase Agreement (the &amp;#x201c;Second Amended Purchase Agreement&amp;#x201d;) with certain purchasers (the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; &amp;#x201c;July &lt;/div&gt;Purchasers&amp;#x201d;). Pursuant to the terms of the Second Amended Purchase Agreement, the Company sold an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;595,000&lt;/div&gt; shares of Common Stock together with warrants to purchase up to an aggregate of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;178,500&lt;/div&gt; shares of Common Stock. Each share of Common Stock was sold together with a warrant to purchase &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.30&lt;/div&gt; of a share of Common Stock at a combined purchase price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.75.&lt;/div&gt; The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$3.6&lt;/div&gt; million, after deducting placement agent fees and estimated offering expenses payable by the Company, but excluding the proceeds, if any, from the exercise of the warrants issued in the offering. The Warrants were exercisable immediately at an exercise price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$9.36&lt;/div&gt; per share. The Warrants will expire on the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;fifth&lt;/div&gt; (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5th&lt;/div&gt;) anniversary of the initial date of issuance.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; October 19, 2016, &lt;/div&gt;the Company sold &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2,760,000&lt;/div&gt; shares of common stock at a price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$2.75&lt;/div&gt; per share, which includes the sale of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;360,000&lt;/div&gt; shares of the Company&amp;#x2019;s common stock sold by the Company pursuant to the exercise, in full, of the over-allotment option by the underwriters in a public offering. The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$6.9&lt;/div&gt; million, after deducting underwriter fees and offering expenses payable by the Company.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 20.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 2, 2017, &lt;/div&gt;the Company sold &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;6,192,750&lt;/div&gt; shares of common stock at a price of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$1.30&lt;/div&gt; per share, which includes the sale of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;807,750&lt;/div&gt; shares of the Company&amp;#x2019;s common stock sold by the Company pursuant to the exercise, in full, of the over-allotment option by the underwriters in a public offering. The net proceeds to the Company from the offering were approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$7.2&lt;/div&gt; million, after deducting underwriter fees and offering expenses payable by the Company. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The sale of additional equity or convertible securities could result in dilution to stockholders. If additional funds are raised through the issuance of debt securities, these securities could have rights senior to those associated with the Company&amp;#x2019;s Common Stock and could contain covenants that would restrict its operations. Financing &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; be available in amounts or on terms acceptable to the Company, or at all. If the Company is unable to obtain required financing, it &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be required to reduce the scope of its operations, including its planned product development and marketing efforts, which could materially and adversely harm its financial condition and operating results. If the Company is unable to secure additional financing, it &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be forced to cease operations.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock>
  <us-gaap:CapitalLeaseObligationsCurrent contextRef="i_2017-07-31" decimals="-3" id="c20669930" unitRef="iso4217-usd">36000</us-gaap:CapitalLeaseObligationsCurrent>
  <us-gaap:CapitalLeaseObligationsCurrent contextRef="i_2017-04-30" decimals="-3" id="c20669931" unitRef="iso4217-usd">35000</us-gaap:CapitalLeaseObligationsCurrent>
  <us-gaap:CapitalLeaseObligationsNoncurrent contextRef="i_2017-07-31" decimals="-3" id="c20669936" unitRef="iso4217-usd">14000</us-gaap:CapitalLeaseObligationsNoncurrent>
  <us-gaap:CapitalLeaseObligationsNoncurrent contextRef="i_2017-04-30" decimals="-3" id="c20669937" unitRef="iso4217-usd">23000</us-gaap:CapitalLeaseObligationsNoncurrent>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="i_2017-07-31" decimals="-3" id="c20670159" unitRef="iso4217-usd">11414000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="i_2017-04-30" decimals="-3" id="c20669897" unitRef="iso4217-usd">8421000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="i_2017-07-31_CashAndCashEquivalentsAxis-CheckingAndSavingsAccountsMember" decimals="-3" id="c20670391" unitRef="iso4217-usd">4400000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="i_2017-04-30_CashAndCashEquivalentsAxis-CheckingAndSavingsAccountsMember" decimals="-3" id="c20670392" unitRef="iso4217-usd">4241000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="i_2017-07-31_CashAndCashEquivalentsAxis-OvernightRepurchaseAccountMember" decimals="-3" id="c20670393" unitRef="iso4217-usd">7014000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="i_2017-04-30_CashAndCashEquivalentsAxis-OvernightRepurchaseAccountMember" decimals="-3" id="c20670394" unitRef="iso4217-usd">4180000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
  <us-gaap:CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy contextRef="d_2017-05-01_2017-07-31" id="c20670229">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(d)&amp;nbsp;Cash, Cash Equivalents, Restricted Cash and Security Agreements&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Cash and Cash Equivalents&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company considers all highly liquid investments with a maturity of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months or less when purchased to be cash equivalents. The Company invests excess cash in an overnight U.S. government securities repurchase bank account and a money market account. In accordance with the terms of the repurchase agreement, the Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; take possession of the related securities. The agreement contains provisions to ensure that the market value of the underlying assets remain sufficient to protect the Company in the event of default by the bank by requiring that the underlying securities have a total market value of at least &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100%&lt;/div&gt; of the bank&amp;#x2019;s total obligations under the agreement.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Checking and savings accounts&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,400 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,241 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Overnight repurchase account&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7,014 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,180 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,414 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,421 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&amp;nbsp;Restricted Cash and &lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;Security Agreements&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;A portion of the Company&amp;#x2019;s cash is restricted under the terms of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; security agreements.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 0pt 0pt 26.4pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;One agreement is between the Company and Barclays Bank. Under this agreement, the cash is on deposit at Barclays Bank and serves as security for letters of credit and bank guarantees that are expected to be issued by Barclays Bank on behalf of OPT LTD, &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; of the Company's subsidiaries, under a credit facility established by Barclays Bank for OPT LTD. The credit facility is approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;#x20ac;0.3&lt;/div&gt; million (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million) and carries a fee of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1%&lt;/div&gt; per annum of the amount of any such obligations issued by Barclays Bank. The credit facility does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; have an expiration date, but is cancelable at the discretion of the bank. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;there was &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;#x20ac;0.3&lt;/div&gt; million (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million) in letters of credit outstanding under this agreement.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;second&lt;/div&gt; agreement is between the Company and Santander Bank. Under this agreement, the cash is on deposit at Santander Bank and serves as security for letter of credit issued by Santander Bank for the lease of new warehouse/office space in Monroe Township, New Jersey. The agreement cannot be extended beyond &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; January 31, 2025, &lt;/div&gt;and is cancelable at the discretion of the bank. Restricted cash includes the following:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Barclay's Bank Agreement&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;361 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;334 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Santander Bank&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;515 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;488 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the statement of financial position that sum to the total of the same such amounts shown in the statement of cash flows.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cash and cash equivalents&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,414 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,421 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted cash- short term&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;361 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;334 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted cash- long term&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,929 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; 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  <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633163">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;9&lt;/div&gt;)&amp;nbsp;Commitments and Contingencies&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(a) Litigation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Shareholder Litigation and Demands&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company and certain of its current and former directors and officers are defendants in a derivative lawsuit filed on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; March 18, 2015 &lt;/div&gt;in the United States District Court for the District of New Jersey captioned &lt;div style="display: inline; font-style: italic;"&gt;Labare v. Dunleavy, et. al.,&lt;/div&gt; Case &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3:15&lt;/div&gt;-cv-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;01980&lt;/div&gt;-FLW-LHG. The derivative complaint alleges claims for breach of fiduciary duty, abuse of control, gross mismanagement and unjust enrichment relating to the now terminated agreement between Victorian Wave Partners Pty. Ltd. (VWP) and the Australian Renewable Energy Agency (ARENA) for the development of a wave power station. The derivative complaint seeks unspecified monetary damages and other relief.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 10, 2015, &lt;/div&gt;a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;second&lt;/div&gt; derivative lawsuit, captioned &lt;div style="display: inline; font-style: italic;"&gt;Rywolt v. Dunleavy, et al.,&lt;/div&gt; Case &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3:15&lt;/div&gt;-cv-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;05469,&lt;/div&gt; was filed by another shareholder against the same defendants in the United States District Court for the District of New Jersey alleging similar claims for breach of fiduciary duty, gross mismanagement, abuse of control, and unjust enrichment relating to the now terminated agreement between VWP and ARENA. The &lt;div style="display: inline; font-style: italic;"&gt;Rywolt&lt;/div&gt; complaint also seeks unspecified monetary damages and other relief. &lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; February 8, 2016, &lt;/div&gt;the Court issued an order consolidating the &lt;div style="display: inline; font-style: italic;"&gt;Labare&lt;/div&gt; and &lt;div style="display: inline; font-style: italic;"&gt;Rywolt &lt;/div&gt;actions, appointing co-lead plaintiffs and lead counsel, and ordering a consolidated amended complaint to be filed within &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;30&lt;/div&gt; days of the order. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; March 9, 2016, &lt;/div&gt;the co-lead plaintiffs filed an amended complaint consolidating their claims and seeking unspecified monetary damages and other relief.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 21, 2016, &lt;/div&gt;a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;third&lt;/div&gt; derivative lawsuit, captioned &lt;div style="display: inline; font-style: italic;"&gt;LaCalamito v. Dunleavy, et al.,&lt;/div&gt; Case &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3:16&lt;/div&gt;-cv-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02249,&lt;/div&gt; was filed by another shareholder against certain current and former directors and officers of the Company in the United States District Court for the District of New Jersey alleging similar claims for breach of fiduciary duty relating to the now terminated agreement between VWP and ARENA. The &lt;div style="display: inline; font-style: italic;"&gt;LaCalamito &lt;/div&gt;complaint seeks unspecified monetary damages and other relief. &lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; been formally served and has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet responded to the complaint.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 9, 2016, &lt;/div&gt;a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;fourth&lt;/div&gt; derivative lawsuit, captioned &lt;div style="display: inline; font-style: italic;"&gt;Pucillo v. Dunleavy, et al.,&lt;/div&gt; was filed by another shareholder against certain current and former directors and officers of the Company in the United States District Court for the District of New Jersey alleging similar claims for breach of fiduciary duty, unjust enrichment, and abuse of control relating to the now terminated agreement between VWP and ARENA. The &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; complaint seeks unspecified monetary damages and other relief. &lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August 2, 2016, &lt;/div&gt;the parties in the &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; lawsuit filed a Stipulation and Proposed Order pursuant to which: (i) the defendants agreed to accept service of the &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; complaint; (ii) the parties agreed to stay the &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; action pending the filing and resolution of a motion to consolidate the &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; action with the &lt;div style="display: inline; font-style: italic;"&gt;Labar&lt;/div&gt;e and &lt;div style="display: inline; font-style: italic;"&gt;Rywolt&lt;/div&gt; actions; and (iii) the parties agreed that the defendants shall &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; be required to respond to the &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; complaint during the pendency of the stay. The Court approved the Stipulation on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August 3, 2016. &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; October 25, 2016, &lt;/div&gt;the Court approved and entered a Stipulation and Order that, among other things, (i) consolidated the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;four&lt;/div&gt; derivative actions; (ii) identified plaintiff &lt;div style="display: inline; font-style: italic;"&gt;Pucillo&lt;/div&gt; as the lead plaintiff in the consolidated actions; and (iii) stayed the consolidated actions pending the settlement hearing scheduled for &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; November 14, 2016 &lt;/div&gt;in the securities class action and further order of the Court. During the month of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August, 2017, &lt;/div&gt;the Company tentatively reached a settlement with the plaintiff subject to final documentation. The settlement, once finalized and if approved by the court, provides, among other things, for a settlement payment by or on behalf of the Company of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$350,000,&lt;/div&gt; of which the Company&amp;#x2019;s insurer would pay the complete amount of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$350,000.&lt;/div&gt; As a result, the Company has accrued &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$350,000&lt;/div&gt; related to this matter as a probable and reasonably estimable loss contingency during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017. &lt;/div&gt;The Company also recorded a receivable of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$350,000&lt;/div&gt; from its insurance carrier with the offset to the statement of operations. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 26, 2017, &lt;/div&gt;an attorney claiming to represent &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; stockholders sent the Company&amp;#x2019;s Board of Directors a Stockholder Litigation Demand letter (&amp;#x201c;Stockholder Demand&amp;#x201d;). The Stockholder Demand alleges that the voting of shares for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1&lt;/div&gt;-for-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt; reverse stock split at the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2015&lt;/div&gt; annual meeting of stockholders held on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; October 22, 2015 &lt;/div&gt;was &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; properly counted, and further alleges that, although the Company reported the reverse stock split as having been passed, if the vote was properly counted the reverse stock split would &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; have been approved. The Stockholder Demand requests the Board of Directors either to deem the reverse stock split as ineffective and disclose the same or to seek a proper and effective stockholder ratification of the reverse stock split. In addition, the Stockholder Demand requests the Board of Directors to adopt and implement adequate internal controls and systems to prevent the alleged improper voting from recurring. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 23, 2017, &lt;/div&gt;the Company responded to the Stockholder Demand, explained the procedures that were followed for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2015&lt;/div&gt; annual meeting of stockholders and provided the Oath of the Inspector of Elections and the Certificate of the Inspector of Elections that certified as accurate the results of the voting at the meeting including voting on the reverse stock split proposal. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 26, 2017, &lt;/div&gt;the attorney representing the alleged stockholders replied to the Company&amp;#x2019;s response, further alleged that the proxy statement underlying the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2015&lt;/div&gt; annual meeting provided voting instructions that misled the stockholders regarding whether their brokers could vote on the reverse stock split proposal, and renewed their requests of the Board. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 24, 2017, &lt;/div&gt;the Company provided an additional response to the Stockholders Demand, denied the allegations, and declined to take any of the actions requested.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Employment Litigation&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 10, 2014, &lt;/div&gt;the Company announced that it had terminated Charles Dunleavy as its Chief Executive Officer and as an employee of the Company for cause, effective &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 9, 2014, &lt;/div&gt;and that Mr. Dunleavy had also been removed from his position as Chairman of the Board of Directors. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 17, 2014, &lt;/div&gt;Mr. Dunleavy wrote to the Company stating that he had retained counsel to represent him in connection with an alleged wrongful termination of his employment. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 28, 2014, &lt;/div&gt;Mr. Dunleavy resigned from the Board and the boards of directors of the Company's subsidiaries. The Company and Mr. Dunleavy have agreed to suspend his alleged employment claims pending resolution of the shareholder litigation, and have since agreed to continue to the suspension pending resolution of the derivatives litigation.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Except for the pending settlement noted previously, we have &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; established any provision for losses relating to these claims and pending litigation. Due to the stages of these proceedings, and considering the inherent uncertainty of these claims and litigation, at this time we are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; able to predict or reasonably estimate whether we have any possible loss exposure or the ultimate outcome of these claims.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(b) Regulatory Matters&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;SEC Investigation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; February 4, 2015, &lt;/div&gt;the Company received a subpoena from the SEC requesting information related to the VWP Project. The Company has provided information to the SEC in response to that subpoena. As part of the same investigation, on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 12, 2016, &lt;/div&gt;the SEC issued &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;second&lt;/div&gt; subpoena requesting information related to the Company&amp;#x2019;s &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 4, 2014 &lt;/div&gt;public offering. The Company has provided information to the SEC in response&amp;nbsp;to that subpoena. The SEC investigation is ongoing and the Company continues to cooperate with the SEC in its investigation. We are unable to predict what action, if any, might be taken by the SEC or its staff as a result of this investigation or what impact, if any, the cost of responding to the SEC&amp;#x2019;s investigation or its ultimate outcome might have on our financial position, results of operations or liquidity. We have &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; established any provision for losses relating to this matter.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Spain IVA (sales tax)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; June 2012, &lt;/div&gt;the Company received notice that the Spanish tax authorities are inquiring into its &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2010&lt;/div&gt; IVA (value-added tax) filing for which the Company benefitted from the offset of approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million of input tax. The Company believes that the inquiry will find that the tax credit was properly claimed and, therefore, &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; liability has been recorded. The Company issued &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; letters of credit totaling &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;#x20ac;0.3&lt;/div&gt; million (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million) at the request of the Spanish tax authorities. On &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; January 31, 2017 &lt;/div&gt;the Company has received &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.2&lt;/div&gt; million from the Spanish tax authorities as a result of the conclusion of the inquiry. In addition, during &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; February 2017, &lt;/div&gt;the Spanish tax authorities approved of the release of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; outstanding letters of credit.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Spain Income Tax Audit&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company is currently undergoing an income tax audit in Spain for the period from &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2008&lt;/div&gt; to &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014,&lt;/div&gt; when its Spanish branch was closed. The branch reported net operating losses for each of the years reported. &lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;It is anticipated that the Company will be assessed a penalty relating to these tax years for these losses. The Company has estimated this penalty to be &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$132,000&lt;/div&gt;,&lt;/div&gt; and as such, for the period ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company has recorded &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$132,000&lt;/div&gt; for this penalty to Accrued expenses in its balance sheet.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
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  <us-gaap:ConcentrationRiskCreditRisk contextRef="d_2017-05-01_2017-07-31" id="c20670237">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(h)&amp;nbsp;Concentration of Credit Risk&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash balances, bank certificates of deposit and trade receivables. The Company invests its excess cash in highly liquid investments (principally, short-term bank deposits, Treasury bills, Treasury notes and money market funds) and does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; believe that it is exposed to any significant risks related to its cash accounts, money market funds or certificates of deposit.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The table below shows the percentage of the Company's revenues derived from customers whose revenues accounted for at least &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10%&lt;/div&gt; of the Company's consolidated revenues for at least &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; of the periods indicated:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Customer &lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Mitsui Engineering &amp;amp; Shipbuilding&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;67&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="MARGIN-BOTTOM: 0px; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-LEFT: 9pt; MARGIN-TOP: 0px; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: -9pt"&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;U.S. Department of Defense Office of&amp;nbsp; Naval Research&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;33&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The loss of, or a significant reduction in revenues from a current customer could significantly impact the Company's financial position or results of operations. The Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; require its customers to maintain collateral.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ConcentrationRiskCreditRisk>
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  <us-gaap:ConcentrationRiskPercentage1 contextRef="d_2016-05-01_2016-07-31_ConcentrationRiskByBenchmarkAxis-SalesRevenueNetMember_ConcentrationRiskByTypeAxis-CustomerConcentrationRiskMember_MajorCustomersAxis-MitsuiEngineeringAndShipBuildingMember" decimals="2" id="c20670412" unitRef="xbrli-pure">1</us-gaap:ConcentrationRiskPercentage1>
  <us-gaap:ConcentrationRiskPercentage1 contextRef="d_2017-05-01_2017-07-31_ConcentrationRiskByBenchmarkAxis-SalesRevenueNetMember_ConcentrationRiskByTypeAxis-CustomerConcentrationRiskMember_MajorCustomersAxis-USDepartmentOfDefenseOfficeOfNavalResearchMember" decimals="2" id="c20670413" unitRef="xbrli-pure">0.33</us-gaap:ConcentrationRiskPercentage1>
  <us-gaap:ConcentrationRiskPercentage1 contextRef="d_2016-05-01_2016-07-31_ConcentrationRiskByBenchmarkAxis-SalesRevenueNetMember_ConcentrationRiskByTypeAxis-CustomerConcentrationRiskMember_MajorCustomersAxis-USDepartmentOfDefenseOfficeOfNavalResearchMember" id="c20670414" unitRef="xbrli-pure" xs:nil="true"/>
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  <us-gaap:ConsolidationPolicyTextBlock contextRef="d_2017-05-01_2017-07-31" id="c20670223">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(a)&amp;nbsp;Consolidation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify; MARGIN-TOP: 0px; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The accompanying consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ConsolidationPolicyTextBlock>
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  <us-gaap:DepreciationDepletionAndAmortization contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670088" unitRef="iso4217-usd">34000</us-gaap:DepreciationDepletionAndAmortization>
  <us-gaap:DerivativeLiabilitiesCurrent contextRef="i_2017-07-31_FinancialInstrumentAxis-WarrantMember" decimals="INF" id="c20670480" unitRef="iso4217-usd">300000</us-gaap:DerivativeLiabilitiesCurrent>
  <us-gaap:DerivativeLiabilitiesCurrent contextRef="i_2017-04-30_FinancialInstrumentAxis-WarrantMember" decimals="INF" id="c20670481" unitRef="iso4217-usd">300000</us-gaap:DerivativeLiabilitiesCurrent>
  <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633155">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7&lt;/div&gt;)&amp;nbsp;Stock-Based Compensation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(a)&amp;nbsp;Stock Options&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Valuation Assumptions for Options Granted during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The fair value of each stock option granted, for both service-based and performance-based vesting requirements during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; was estimated at the date of grant using the Black-Scholes option pricing model, assuming &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; dividends, and using the weighted average valuation assumptions noted in the following table. The risk-free rate is based on the US Treasury yield curve in effect at the time of grant. The expected life (estimated period of time outstanding) of the stock options granted was estimated using the &amp;quot;simplified&amp;quot; method as permitted by the SEC's Staff Accounting Bulletin &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt;&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;110,&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt; Share-Based Payment.&lt;/div&gt; Expected volatility was based on the Company&amp;#x2019;s historical volatility during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016.&lt;/div&gt; The below assumptions were used to determine the weighted average per share fair value of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$1.10&lt;/div&gt; for stock options granted during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2016. &lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No&lt;/div&gt; options were granted during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Risk-free interest rate&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.3&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected dividend yield&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.0&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected life (in years)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5.5&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected volatility&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;85.6&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;A summary of stock options under our stock incentive plans is detailed in the following table.&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Average&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Remaining&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Shares&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Average&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Contractual&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Underlying&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Exercise&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Term&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Options&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Price&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(In Years)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 49%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Outstanding as of April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;237,214 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;14.64 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7.6 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Granted&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Exercised&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cancelled/forfeited&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(6,910&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;161.18 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Outstanding as of July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;230,304 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10.24 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7.6 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Exercisable as of July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;128,641 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;16.10 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;6.3 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the total intrinsic value of outstanding and exercisable options was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$5,000&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$4,000,&lt;/div&gt; respectively. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100,323&lt;/div&gt; additional options were unvested, which had &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; intrinsic value and a weighted average remaining contractual term of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;9.2&lt;/div&gt; years. There was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$69,000&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$83,000&lt;/div&gt;&amp;nbsp;of total recognized compensation cost related to stock options during each of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; respectively. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;there was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.1&lt;/div&gt; million of total unrecognized compensation cost related to non-vested stock options granted under the plans. This cost is expected to be recognized over a weighted-average period of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.4&lt;/div&gt; years. The Company typically issues newly authorized but unissued shares to satisfy option exercises under these plans.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(b)&amp;nbsp;Restricted Stock&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Compensation expense for non-vested restricted stock is generally recorded based on its market value on the date of grant and recognized ratably over the associated service and performance period. During the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;the Company granted &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;114,584&lt;/div&gt; shares subject to service-based vesting requirements and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; shares subject to performance-based vesting requirements. The achievement or vesting requirement of the performance-based grants is tied to the Company&amp;#x2019;s total shareholder return (&amp;#x201c;TSR&amp;#x201d;) relative to the total shareholder return of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; alternative energy Exchange Traded Funds as measured over a specific performance period. &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No&lt;/div&gt; vesting of the relevant shares will occur in instances where the Company&amp;#x2019;s TSR for the relevant period is below &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;80%&lt;/div&gt; of the peer group. However, additional opportunities to vest some or all of a portion of the shares in a subsequent period &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;occur. Compensation expense for these awards with market-based vesting is calculated based on the estimated fair value as of the grant date utilizing a Monte Carlo simulation model and is recognized over the service period on a straight-line basis.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted stock issued and unvested as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;included &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;12,000&lt;/div&gt; shares of unvested restricted stock subjected to performance-based vesting requirements.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;A summary of non-vested restricted stock under our stock incentive plans is as follows:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Number&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Average Price per&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;of Shares&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Share&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Issued and unvested at April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;103,412 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3.99 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Granted&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;114,584 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.40 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Vested&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(70,650&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4.55 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cancelled/forfeited&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(125&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.40 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Issued and unvested at July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;147,221 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2.04 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;There was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$22,000&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.1&lt;/div&gt; million of total recognized compensation cost related to restricted stock for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; respectively. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;there was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.2&lt;/div&gt; million of total unrecognized compensation cost related to unvested restricted stock granted under our plans. This cost is expected to be recognized over a weighted average period of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.5&lt;/div&gt;&amp;nbsp;years.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(c) Treasury Stock&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;During the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;22,016&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;447&lt;/div&gt; shares, respectively, of common stock were purchased by the Company from employees to pay taxes related to the vesting of restricted stock.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="d_2017-05-01_2017-07-31" decimals="INF" id="c20669999" unitRef="iso4217-usd-per-xbrli-shares">-0.22</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="d_2016-05-01_2016-07-31" decimals="INF" id="c20670000" unitRef="iso4217-usd-per-xbrli-shares">-1.72</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerSharePolicyTextBlock contextRef="d_2017-05-01_2017-07-31" id="c20670241">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(j)&amp;nbsp;Net Loss per Common Share&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Basic and diluted net loss per share for all periods presented is computed by dividing net loss by the weighted average number of shares of common stock outstanding during the period. Due to the Company's net losses, potentially dilutive securities, consisting of outstanding stock options and non-vested performance-based shares, were excluded from the diluted loss per share calculation due to their anti-dilutive effect.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In computing diluted net loss per share, options to purchase shares of common stock, warrants on common stock and non-vested restricted stock issued to employees and non-employee directors, totaling &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;701,977&lt;/div&gt; for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;711,453&lt;/div&gt; for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2016, &lt;/div&gt;were excluded from each of the computations as the effect would be anti-dilutive due to the Company's losses.&lt;div style="display: inline; font-weight: bold;"&gt; &lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:EarningsPerSharePolicyTextBlock>
  <us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670130" unitRef="iso4217-usd">90000</us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations>
  <us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670131" unitRef="iso4217-usd">-13000</us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations>
  <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 contextRef="d_2017-05-01_2017-07-31_AwardTypeAxis-EmployeeStockOptionMember" id="c20670537">P146D</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1>
  <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 contextRef="d_2017-05-01_2017-07-31_AwardTypeAxis-RestrictedStockMember" id="c20670550">P1Y182D</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1>
  <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions contextRef="i_2017-07-31_AwardTypeAxis-RestrictedStockMember" decimals="INF" id="c20670549" unitRef="iso4217-usd">200000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions>
  <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions contextRef="i_2017-07-31_AwardTypeAxis-EmployeeStockOptionMember" decimals="INF" id="c20670536" unitRef="iso4217-usd">100000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions>
  <us-gaap:FairValueAdjustmentOfWarrants contextRef="d_2017-05-01_2017-07-31" decimals="INF" id="c20670482" unitRef="iso4217-usd">-37000</us-gaap:FairValueAdjustmentOfWarrants>
  <us-gaap:FairValueAdjustmentOfWarrants contextRef="d_2016-05-01_2016-07-31" decimals="INF" id="c20670483" unitRef="iso4217-usd">752000</us-gaap:FairValueAdjustmentOfWarrants>
  <us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-23">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 8%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="3"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 8%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="3"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 72%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 4%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Dividend rate&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.0%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.0%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Risk-free rate&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.68%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.00%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected life (years)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4.0&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;-&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4.4&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5.0&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;-&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5.4&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 72%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected volatility&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;140.3%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;125.4%&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 4%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock>
  <us-gaap:FairValueAssumptionsExpectedDividendRate contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember" decimals="4" id="c20670490" unitRef="xbrli-pure">0</us-gaap:FairValueAssumptionsExpectedDividendRate>
  <us-gaap:FairValueAssumptionsExpectedDividendRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MinimumMember" id="c20670492" unitRef="xbrli-pure" xs:nil="true"/>
  <us-gaap:FairValueAssumptionsExpectedDividendRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember" decimals="4" id="c20670493" unitRef="xbrli-pure">0</us-gaap:FairValueAssumptionsExpectedDividendRate>
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  <us-gaap:FairValueAssumptionsExpectedTerm contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MinimumMember" id="c20670501">P4Y</us-gaap:FairValueAssumptionsExpectedTerm>
  <us-gaap:FairValueAssumptionsExpectedTerm contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MaximumMember" id="c20670503">P4Y146D</us-gaap:FairValueAssumptionsExpectedTerm>
  <us-gaap:FairValueAssumptionsExpectedTerm contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MinimumMember" id="c20670504">P5Y</us-gaap:FairValueAssumptionsExpectedTerm>
  <us-gaap:FairValueAssumptionsExpectedTerm contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember" id="c20670505" xs:nil="true"/>
  <us-gaap:FairValueAssumptionsExpectedTerm contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MaximumMember" id="c20670506">P5Y146D</us-gaap:FairValueAssumptionsExpectedTerm>
  <us-gaap:FairValueAssumptionsExpectedVolatilityRate contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MinimumMember" id="c20670507" unitRef="xbrli-pure" xs:nil="true"/>
  <us-gaap:FairValueAssumptionsExpectedVolatilityRate contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember" decimals="4" id="c20670508" unitRef="xbrli-pure">1.403</us-gaap:FairValueAssumptionsExpectedVolatilityRate>
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  <us-gaap:FairValueAssumptionsExpectedVolatilityRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MinimumMember" id="c20670510" unitRef="xbrli-pure" xs:nil="true"/>
  <us-gaap:FairValueAssumptionsExpectedVolatilityRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember" decimals="4" id="c20670511" unitRef="xbrli-pure">1.254</us-gaap:FairValueAssumptionsExpectedVolatilityRate>
  <us-gaap:FairValueAssumptionsExpectedVolatilityRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MaximumMember" id="c20670512" unitRef="xbrli-pure" xs:nil="true"/>
  <us-gaap:FairValueAssumptionsRiskFreeInterestRate contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember" decimals="4" id="c20670496" unitRef="xbrli-pure">0.0168</us-gaap:FairValueAssumptionsRiskFreeInterestRate>
  <us-gaap:FairValueAssumptionsRiskFreeInterestRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MinimumMember" id="c20670498" unitRef="xbrli-pure" xs:nil="true"/>
  <us-gaap:FairValueAssumptionsRiskFreeInterestRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember" decimals="4" id="c20670499" unitRef="xbrli-pure">0.01</us-gaap:FairValueAssumptionsRiskFreeInterestRate>
  <us-gaap:FairValueAssumptionsRiskFreeInterestRate contextRef="d_2016-05-01_2016-07-31_FinancialInstrumentAxis-WarrantMember_RangeAxis-MaximumMember" id="c20670500" unitRef="xbrli-pure" xs:nil="true"/>
  <us-gaap:FairValueDisclosuresTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633159">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8&lt;/div&gt;) Fair Value Measurements&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company measures and reports certain financial and non-financial assets and liabilities on a fair value basis. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). GAAP specifies a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt;-level hierarchy that is used when measuring and disclosing fair value. The fair value hierarchy gives the highest priority to quoted prices available in active markets (i.e., observable inputs) and the lowest priority to data lacking transparency (i.e., unobservable inputs). An instrument&amp;#x2019;s categorization within the fair value hierarchy is based on the lowest level of significant input to its valuation. The following is a description of the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; hierarchy levels.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: center; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 100%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="WIDTH: 9%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Level &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 91%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Active markets are considered to be those in which transactions for the assets or liabilities occur in sufficient frequency and volume to provide pricing information on an ongoing basis.&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 9%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 91%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 9%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Level &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 91%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Quoted prices in markets that are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability. This category includes quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in inactive markets.&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 9%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 91%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 9%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Level &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3&lt;/div&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="WIDTH: 91%; VERTICAL-ALIGN: top"&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Unobservable inputs are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; corroborated by market data. This category is comprised of financial and non-financial assets and liabilities whose fair value is estimated based on internally developed models or methodologies using significant inputs that are generally less readily observable from objective sources.&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Transfers into or out of any hierarchy level are recognized at the end of the reporting period in which the transfers occurred. There were &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; transfers between any levels during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;31,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The following information is provided to help readers gain an understanding of the relationship between amounts reported in the accompanying consolidated financial statements and the related market or fair value. The disclosures include financial instruments and derivative financial instruments, other than investment in affiliates.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Following are descriptions of the valuation methodologies used to measure material assets and liabilities at fair value and details of the valuation models, key inputs to those models and significant assumptions utilized.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; text-decoration: underline;"&gt;Warrant Liabilities&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The fair value of the Company's warrant liabilities (refer to Note&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;6&lt;/div&gt;) recorded in the Company's financial statements is determined using the Black-Scholes option pricing model and the quoted price of the Company's common stock in an active market, volatility and expected life, is a Level&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3&lt;/div&gt; measurement. Volatility is based on the actual market activity of the Company's stock. The expected life is based on the remaining contractual term of the warrants and the risk free interest rate is based on the implied yield available on U.S. Treasury Securities with a maturity equivalent to the warrants' expected life.&amp;nbsp;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The following table presents financial assets and liabilities measured at fair value on a recurring basis as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;31,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 45pt; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Total Carrying Value in Consolidated Balance Sheet&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Quoted prices in active markets for identical assts or liabilities &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant other observable inputs &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant unobservable inputs&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 3)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 40%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="14"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Warrant liabilities&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;286 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;286 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: center; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;The following table presents financial assets and liabilities measured at fair value on a recurring basis as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;30,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 45pt; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Total Carrying Value in Consolidated Balance Sheet&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Quoted prices in active markets for identical assts or liabilities &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant other observable inputs &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant unobservable inputs&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 3)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 40%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="14"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Warrant liabilities&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;323 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;323 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 2pt"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The following table provides a summary of changes in fair value of the Company&amp;#x2019;s warrant liabilities held at &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 83%; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="4"&gt;Fair Value Measurement Using Significant Unobservable Inputs ( Level 3)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Total&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Warrant &lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Liability&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 81%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 16%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Fair value &amp;#x2013; April 30, 2016&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Issuance&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1,814 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Transfers&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Change in fair value&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(1,491&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Fair value &amp;#x2013; April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;323 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 81%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 16%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Change in fair value&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(37&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 81%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Fair value &amp;#x2013; July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;286 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;There were &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; re-measured assets or liabilities at fair value on a non-recurring basis during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; respectively.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:FairValueDisclosuresTextBlock>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings contextRef="d_2016-05-01_2017-04-30_FinancialInstrumentAxis-WarrantMember" decimals="-3" id="c20670663" unitRef="iso4217-usd">-1491000</us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings contextRef="d_2017-05-01_2017-07-31_FinancialInstrumentAxis-WarrantMember" decimals="-3" id="c20670665" unitRef="iso4217-usd">-37000</us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues contextRef="d_2016-05-01_2017-04-30_FinancialInstrumentAxis-WarrantMember" decimals="-3" id="c20670661" unitRef="iso4217-usd">1814000</us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet contextRef="d_2016-05-01_2017-04-30_FinancialInstrumentAxis-WarrantMember" id="c20670662" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue contextRef="i_2016-04-30_FinancialInstrumentAxis-WarrantMember" id="c20670660" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue contextRef="i_2017-04-30_FinancialInstrumentAxis-WarrantMember" decimals="-3" id="c20670664" unitRef="iso4217-usd">323000</us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue>
  <us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue contextRef="i_2017-07-31_FinancialInstrumentAxis-WarrantMember" decimals="-3" id="c20670666" unitRef="iso4217-usd">286000</us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue>
  <us-gaap:ForeignCurrencyTransactionGainLossBeforeTax contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670085" unitRef="iso4217-usd">62000</us-gaap:ForeignCurrencyTransactionGainLossBeforeTax>
  <us-gaap:ForeignCurrencyTransactionGainLossBeforeTax contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670086" unitRef="iso4217-usd">5000</us-gaap:ForeignCurrencyTransactionGainLossBeforeTax>
  <us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock contextRef="d_2017-05-01_2017-07-31" id="c20670233">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(f)&amp;nbsp;Foreign Exchange Gains and Losses&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company has invested in certain certificates of deposit and has maintained cash accounts that are denominated in British pounds sterling, Euros and Australian dollars. These amounts are included in cash, cash equivalents, restricted cash and marketable securities on the accompanying consolidated balance sheets. Such positions &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;result in realized and unrealized foreign exchange gains or losses from exchange rate fluctuations, which are included in &amp;#x201c;Foreign exchange gain/(loss)&amp;#x201d;&amp;nbsp;in the accompanying consolidated statements of operations.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock>
  <us-gaap:GainLossOnSaleOfPropertyPlantEquipment contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670089" unitRef="iso4217-usd">-4000</us-gaap:GainLossOnSaleOfPropertyPlantEquipment>
  <us-gaap:GainLossOnSaleOfPropertyPlantEquipment contextRef="d_2016-05-01_2016-07-31" id="c20670090" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:GrossProfit contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20669980" unitRef="iso4217-usd">-22000</us-gaap:GrossProfit>
  <us-gaap:GrossProfit contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20669981" unitRef="iso4217-usd">75000</us-gaap:GrossProfit>
  <us-gaap:IncomeTaxDisclosureTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633164">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;)&amp;nbsp;Income Taxes&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;The Company did &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; recognize any consolidated income tax benefit (expense) during the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; month periods ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016.&lt;/div&gt; The Company has recorded a valuation allowance to reduce its net deferred tax asset to an amount that is more likely than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; to be realized in future years. Accordingly, the benefit of the net operating loss that would have been recognized was offset by changes in the valuation allowance.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company applies the guidance issued by the FASB for the accounting and reporting of uncertain tax positions. The guidance requires the Company to recognize in its consolidated financial statements the impact of a tax position if that position is more likely than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; to be sustained upon examination, based on the technical merits of the position. We are currently undergoing an income tax audit in Spain for the period from &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2008&lt;/div&gt; to &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014,&lt;/div&gt; when our Spanish branch was closed. The branch reported net operating losses for each of the years reported. It is anticipated that we will be assessed a penalty relating to these tax years for these losses. We have estimated this penalty to be &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$132,000&lt;/div&gt;,&lt;/div&gt; and as such, for the period ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;we have recorded &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$132,000&lt;/div&gt; for this penalty to Accrued expenses in the Balance Sheet. At &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;31,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017&lt;/div&gt; the Company had &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; other unrecognized tax positions. The Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; expect any material increase or decrease in its income tax expense in the next &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;twelve&lt;/div&gt; months, related to examinations or uncertain tax positions. U.S. federal and state income tax returns were audited through fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt; and fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2010&lt;/div&gt; respectively. Net operating loss and credit carry forwards since inception remain open to examination by taxing authorities, and will continue to remain open for a period of time after utilization.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:IncomeTaxDisclosureTextBlock>
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  <us-gaap:IncomeTaxExpenseBenefit contextRef="d_2017-05-01_2017-07-31" decimals="INF" id="c20670736" unitRef="iso4217-usd">0</us-gaap:IncomeTaxExpenseBenefit>
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  <us-gaap:IncreaseDecreaseInAccountsPayable contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670102" unitRef="iso4217-usd">-405000</us-gaap:IncreaseDecreaseInAccountsPayable>
  <us-gaap:IncreaseDecreaseInAccountsPayable contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670103" unitRef="iso4217-usd">264000</us-gaap:IncreaseDecreaseInAccountsPayable>
  <us-gaap:IncreaseDecreaseInAccountsReceivable contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670096" unitRef="iso4217-usd">38000</us-gaap:IncreaseDecreaseInAccountsReceivable>
  <us-gaap:IncreaseDecreaseInAccountsReceivable contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670097" unitRef="iso4217-usd">150000</us-gaap:IncreaseDecreaseInAccountsReceivable>
  <us-gaap:IncreaseDecreaseInAccruedLiabilities contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670104" unitRef="iso4217-usd">-1531000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
  <us-gaap:IncreaseDecreaseInAccruedLiabilities contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670105" unitRef="iso4217-usd">215000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
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  <us-gaap:IncreaseDecreaseInDeferredRevenue contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670107" unitRef="iso4217-usd">-39000</us-gaap:IncreaseDecreaseInDeferredRevenue>
  <us-gaap:IncreaseDecreaseInOtherOperatingAssets contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670100" unitRef="iso4217-usd">-239000</us-gaap:IncreaseDecreaseInOtherOperatingAssets>
  <us-gaap:IncreaseDecreaseInOtherOperatingAssets contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670101" unitRef="iso4217-usd">370000</us-gaap:IncreaseDecreaseInOtherOperatingAssets>
  <us-gaap:IncreaseDecreaseInUnbilledReceivables contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670098" unitRef="iso4217-usd">-133000</us-gaap:IncreaseDecreaseInUnbilledReceivables>
  <us-gaap:IncreaseDecreaseInUnbilledReceivables contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670099" unitRef="iso4217-usd">13000</us-gaap:IncreaseDecreaseInUnbilledReceivables>
  <us-gaap:InsuranceSettlementsReceivable contextRef="i_2017-07-31_LitigationCaseAxis-StipulationMember" decimals="INF" id="c20670689" unitRef="iso4217-usd">350000</us-gaap:InsuranceSettlementsReceivable>
  <us-gaap:InsuranceSettlementsReceivableCurrent contextRef="i_2017-07-31" decimals="-3" id="c20669906" unitRef="iso4217-usd">350000</us-gaap:InsuranceSettlementsReceivableCurrent>
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  <us-gaap:InterestIncomeExpenseNet contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20669993" unitRef="iso4217-usd">3000</us-gaap:InterestIncomeExpenseNet>
  <us-gaap:InterestIncomeExpenseNet contextRef="d_2016-05-01_2016-07-31" id="c20669994" unitRef="iso4217-usd" xs:nil="true"/>
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  <us-gaap:InterestPaid contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670140" unitRef="iso4217-usd">2000</us-gaap:InterestPaid>
  <us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633148">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3&lt;/div&gt;)&amp;nbsp;Marketable Securities&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Marketable securities with initial maturities greater than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months but that mature within &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; year from the balance sheet date are classified as current assets and are summarized as follows:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: center; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Certificate of Deposit&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;25 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;25 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt;&lt;/div&gt;</us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock>
  <us-gaap:LettersOfCreditOutstandingAmount contextRef="i_2012-06-30_IncomeTaxAuthorityAxis-ForeignCountryMember_IncomeTaxAuthorityNameAxis-TaxAuthoritySpainMember" decimals="-5" id="c20670706" unitRef="iso4217-eur">300000</us-gaap:LettersOfCreditOutstandingAmount>
  <us-gaap:LettersOfCreditOutstandingAmount contextRef="i_2012-06-30_IncomeTaxAuthorityAxis-ForeignCountryMember_IncomeTaxAuthorityNameAxis-TaxAuthoritySpainMember" decimals="INF" id="c20670707" unitRef="iso4217-usd">300000</us-gaap:LettersOfCreditOutstandingAmount>
  <us-gaap:Liabilities contextRef="i_2017-07-31" decimals="-3" id="c20669938" unitRef="iso4217-usd">2999000</us-gaap:Liabilities>
  <us-gaap:Liabilities contextRef="i_2017-04-30" decimals="-3" id="c20669939" unitRef="iso4217-usd">4626000</us-gaap:Liabilities>
  <us-gaap:LiabilitiesAndStockholdersEquity contextRef="i_2017-07-31" decimals="-3" id="c20669974" unitRef="iso4217-usd">13085000</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:LiabilitiesAndStockholdersEquity contextRef="i_2017-04-30" decimals="-3" id="c20669975" unitRef="iso4217-usd">10073000</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:LiabilitiesCurrent contextRef="i_2017-07-31" decimals="-3" id="c20669934" unitRef="iso4217-usd">2985000</us-gaap:LiabilitiesCurrent>
  <us-gaap:LiabilitiesCurrent contextRef="i_2017-04-30" decimals="-3" id="c20669935" unitRef="iso4217-usd">4603000</us-gaap:LiabilitiesCurrent>
  <us-gaap:LiabilitiesFairValueAdjustment contextRef="d_2017-05-01_2017-07-31_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember" decimals="-3" id="c20670643" unitRef="iso4217-usd">0</us-gaap:LiabilitiesFairValueAdjustment>
  <us-gaap:LiabilitiesFairValueAdjustment contextRef="d_2016-05-01_2016-07-31_FairValueByMeasurementFrequencyAxis-FairValueMeasurementsNonrecurringMember" decimals="-3" id="c20670645" unitRef="iso4217-usd">0</us-gaap:LiabilitiesFairValueAdjustment>
  <us-gaap:LineOfCredit contextRef="i_2017-07-31_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis-BarclaysBankMember" decimals="-5" id="c20670240" unitRef="iso4217-eur">300000</us-gaap:LineOfCredit>
  <us-gaap:LineOfCredit contextRef="i_2017-07-31_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis-BarclaysBankMember" decimals="INF" id="c20670242" unitRef="iso4217-usd">300000</us-gaap:LineOfCredit>
  <us-gaap:LineOfCreditFacilityCommitmentFeePercentage contextRef="d_2017-05-01_2017-07-31_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis-BarclaysBankMember" decimals="2" id="c20670244" unitRef="xbrli-pure">0.01</us-gaap:LineOfCreditFacilityCommitmentFeePercentage>
  <us-gaap:LitigationReserveCurrent contextRef="i_2017-07-31_LitigationCaseAxis-StipulationMember" decimals="INF" id="c20670687" unitRef="iso4217-usd">350000</us-gaap:LitigationReserveCurrent>
  <us-gaap:LitigationReserveCurrent contextRef="i_2017-07-31" decimals="-3" id="c20669926" unitRef="iso4217-usd">350000</us-gaap:LitigationReserveCurrent>
  <us-gaap:LitigationReserveCurrent contextRef="i_2017-04-30" id="c20669927" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:LitigationSettlementAmountAwardedToOtherParty contextRef="d_2017-08-01_2017-08-31_LitigationCaseAxis-StipulationMember" decimals="INF" id="c20670685" unitRef="iso4217-usd">350000</us-gaap:LitigationSettlementAmountAwardedToOtherParty>
  <us-gaap:LossContingencyAccrualCarryingValueCurrent contextRef="i_2017-07-31" decimals="-3" id="c20670431" unitRef="iso4217-usd">298000</us-gaap:LossContingencyAccrualCarryingValueCurrent>
  <us-gaap:LossContingencyAccrualCarryingValueCurrent contextRef="i_2017-04-30" decimals="-3" id="c20670432" unitRef="iso4217-usd">238000</us-gaap:LossContingencyAccrualCarryingValueCurrent>
  <us-gaap:MarketableSecuritiesCurrent contextRef="i_2017-07-31" decimals="-3" id="c20669898" unitRef="iso4217-usd">25000</us-gaap:MarketableSecuritiesCurrent>
  <us-gaap:MarketableSecuritiesCurrent contextRef="i_2017-04-30" decimals="-3" id="c20669899" unitRef="iso4217-usd">25000</us-gaap:MarketableSecuritiesCurrent>
  <us-gaap:MarketableSecuritiesCurrent contextRef="i_2016-04-30" decimals="-3" id="c20670427" unitRef="iso4217-usd">25000</us-gaap:MarketableSecuritiesCurrent>
  <us-gaap:MarketableSecuritiesPolicy contextRef="d_2017-05-01_2017-07-31" id="c20670231">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(e) Marketable Securities&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Marketable securities with original maturities longer than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months but that mature in less than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; year from the balance sheet date are classified as current assets. Marketable securities that the Company has the intent and ability to hold to maturity are classified as investments held-to-maturity and are reported at amortized cost. The difference between the acquisition cost and face values of held-to-maturity investments is amortized over the remaining term of the investments and added to or subtracted from the acquisition cost and interest income. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017, &lt;/div&gt;all of the Company&amp;#x2019;s investments were classified as held-to-maturity.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:MarketableSecuritiesPolicy>
  <us-gaap:MarketableSecuritiesTextBlock contextRef="d_2017-05-01_2017-07-31_MajorTypesOfDebtAndEquitySecuritiesAxis-CurrentMember" id="c-21">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Certificate of Deposit&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;25 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;25 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:MarketableSecuritiesTextBlock>
  <us-gaap:NetCashProvidedByUsedInFinancingActivities contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670128" unitRef="iso4217-usd">7180000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
  <us-gaap:NetCashProvidedByUsedInFinancingActivities contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670129" unitRef="iso4217-usd">5225000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
  <us-gaap:NetCashProvidedByUsedInInvestingActivities contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670115" unitRef="iso4217-usd">-12000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
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  <us-gaap:NetCashProvidedByUsedInOperatingActivities contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670109" unitRef="iso4217-usd">-2921000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
  <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="d_2017-05-01_2017-07-31" id="c20670245">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(l) Recently Issued Accounting Standards&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 2014, &lt;/div&gt;the Financial Accounting Standards Board (&amp;#x201c;FASB&amp;#x201d;) issued Accounting Standards Update (&amp;#x201c;ASU&amp;#x201d;) &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt;&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09,&lt;/div&gt; &amp;#x201c;&lt;div style="display: inline; font-style: italic;"&gt;Revenue from Contracts with Customers (Topic &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;606&lt;/div&gt;).&amp;#x201d;&lt;/div&gt; ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;five&lt;/div&gt;-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. The FASB subsequently issued additional clarifying standards to address issues arising from implementation of the new revenue standard, including a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt;-year deferral of the effective date for the new revenue standard. Public companies should now apply the guidance in ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; to annual reporting periods beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017&lt;/div&gt; and interim periods within those annual periods. Earlier application is permitted only as of annual reporting periods beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; including interim periods within that annual period. As such, the Company is required to adopt this standard effective in fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2019,&lt;/div&gt; which begins &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2018. &lt;/div&gt;Companies &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;use either a full retrospective or a modified retrospective approach to adopt ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09.&lt;/div&gt; The Company has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet completed its final review of the impact of this guidance; however the Company anticipates applying the modified retrospective method upon adoption of ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2018.&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; The impact to the Company could be affected by the nature and terms of potential future contracts with customers, as those contracts &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;have terms that differ from the Company&amp;#x2019;s current contracts. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 0pt 0pt 7.5pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 28.5pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August 2014, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Disclosure of Uncertainties about an Entity&amp;#x2019;s Ability&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;to Continue as a Going Concern&amp;#x201d;,&lt;/div&gt; which describes how an entity should assess its ability to meet obligations and sets rules for how this information should be disclosed in the financial statements. The standard provides accounting guidance that will be used along with existing auditing standards. The new standard applies to all entities for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;first&lt;/div&gt; annual period ending after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2016, &lt;/div&gt;and interim periods thereafter. Early application is permitted. The Company adopted ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15&lt;/div&gt; for the fiscal year &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017.&lt;/div&gt; The Company&amp;#x2019;s addition of the standard did &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; have a material impact on its disclosures.&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; See section (c) &amp;#x201c;Liquidity/Going Concern&amp;#x201d; within Note (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1&lt;/div&gt;)&amp;nbsp;&amp;#x201c;Background and Liquidity&amp;#x201d; of the consolidated financial statements included in this Quarterly Report on Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-Q for further discussion on the Company&amp;#x2019;s ability to continue as a going concern.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; January 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;01,&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt; &amp;#x201c;Recognition and Measurement of Financial Assets and Financial Liabilities&amp;#x201d;,&lt;/div&gt; which makes limited amendments to the guidance in U.S. GAAP on the classification and measurement of financial instruments. The update significantly revises an entity's accounting related to the classification and measurement of investments in equity securities and the presentation of certain fair value changes for financial liabilities measured at fair value. It also amends certain disclosure requirements associated with the fair value of financial instruments. The update will take effect for public companies for fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2017, &lt;/div&gt;including interim periods within those fiscal years. The Company will evaluate the effect of ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;01&lt;/div&gt; for future periods as applicable.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: 21.6pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; February 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Leases (Topic&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;842&lt;/div&gt;&lt;/div&gt;).&amp;#x201d; The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;12&lt;/div&gt;&amp;nbsp;months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02&lt;/div&gt; is effective for annual periods beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2018,&lt;/div&gt; including interim periods within those annual periods, with early adoption permitted. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company is evaluating the effect ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02&lt;/div&gt; will have on its consolidated financial statements and disclosures and has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet determined the effect of the standard on its ongoing financial reporting at this time.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 3.6pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; March 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Compensation - Stock Compensation (Topic&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;718&lt;/div&gt;)&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;.&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201d;&lt;/div&gt; The amendments of ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; were issued as part of the FASB's Simplification initiative focused on improving areas of GAAP for which cost and complexity &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be reduced while maintaining or improving the usefulness of information disclosed within the financial statements. The amendments focused on simplification specifically with regard to share-based payment transactions, including accounting for forfeitures, income tax consequences, classification of awards as equity or liabilities and classification on the statement of cash flows. The guidance in ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; is effective for fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2016, &lt;/div&gt;and interim periods within those annual periods. The Company adopted ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2017. &lt;/div&gt;Certain of the amendments are applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2017, &lt;/div&gt;while other amendments are applied retrospectively, prospectively or using either a prospective or a retrospective transition method. Upon adoption, the Company is beginning to account for forfeitures as they occur rather than estimate a forfeiture rate and has recorded a cumulative-effect adjustment in equity of approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$10,000&lt;/div&gt; on the date of initial adoption. In periods subsequent to adoption, a higher expense will be recognized earlier during the respective vesting periods of stock-based awards that are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; forfeited. The Company expects that the income tax amendments within ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; will have &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; impact on its results of operations or cash flows because it is in a net operating loss position with a full valuation allowance. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Statement of Cash Flows (Topic &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;230&lt;/div&gt;): Classification&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;of Certain Cash Receipts and Cash Payments&amp;#x201d;,&lt;/div&gt; providing additional guidance on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;eight&lt;/div&gt; specific cash flow classification issues. The goal of the ASU is to reduce diversity in practice of classifying certain items. The amendments in the ASU are effective for&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2017, &lt;/div&gt;and interim periods within those fiscal years and early adoption is permitted. The Company has evaluated the effect ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;13&lt;/div&gt; will have on its consolidated financial statements and disclosures and has determined the standard will have &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; impact on its ongoing financial reporting at this time.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; November 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;18,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Statement of Cash Flows (Topic &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;230&lt;/div&gt;): Restricted&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;Cash&amp;#x201d;,&lt;/div&gt; which amends guidance and presentation related to restricted cash in the statement of cash flows, including stating that amounts generally described as restricted cash and restricted cash equivalents should be included within cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown in the statement of cash flows. An entity is required to provide a disclosure indicating the reconciliation of all cash accounts. The amendments in the ASU are effective for&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2017, &lt;/div&gt;and interim periods within those fiscal years and early adoption is permitted. The Company has early adopted ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;18&lt;/div&gt; effective &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2017. &lt;/div&gt;In connection with the adoption of the standard the Company has used a retrospective transition method for each period presented in the statement of cash flows. The Company reclassified &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$488,000&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$300,000&lt;/div&gt; of restricted cash to cash, cash equivalents and restricted cash, beginning of period for the period &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2016 &lt;/div&gt;in the statement of cash flows. 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  <us-gaap:RestrictedCashNoncurrent contextRef="i_2017-07-31" decimals="-3" id="c20669914" unitRef="iso4217-usd">154000</us-gaap:RestrictedCashNoncurrent>
  <us-gaap:RestrictedCashNoncurrent contextRef="i_2017-04-30" decimals="-3" id="c20669915" unitRef="iso4217-usd">154000</us-gaap:RestrictedCashNoncurrent>
  <us-gaap:RetainedEarningsAccumulatedDeficit contextRef="i_2017-07-31" decimals="-3" id="c20670158" unitRef="iso4217-usd">-190043000</us-gaap:RetainedEarningsAccumulatedDeficit>
  <us-gaap:RetainedEarningsAccumulatedDeficit contextRef="i_2017-04-30" decimals="-3" id="c20669969" unitRef="iso4217-usd">-187370000</us-gaap:RetainedEarningsAccumulatedDeficit>
  <us-gaap:RevenueRecognitionPolicyTextBlock contextRef="d_2017-05-01_2017-07-31" id="c20670227">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(c) Revenue Recognition&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company&amp;#x2019;s contracts are either cost plus or fixed price contracts. Under cost plus contracts, customers are billed for actual expenses incurred plus an agreed-upon fee. Under cost plus contracts, a profit or loss on a project is recognized depending on whether actual costs are more or less than the agreed upon amount.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; types of fixed price contracts, firm fixed price and cost-sharing. Under firm fixed price contracts, the Company receives an agreed-upon amount for providing products and services specified in the contract, a profit or loss is recognized depending on whether actual costs are more or less than the agreed upon amount. Under cost-sharing contracts, the fixed amount agreed upon with the customer is only intended to fund a portion of the costs on a specific project. Under cost sharing contracts, an amount corresponding to the revenue is recorded in cost of revenues, resulting in gross profit on these contracts of zero. The Company&amp;#x2019;s share of the costs is recorded as product development expense.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Generally, revenue under fixed price or cost plus contracts is recognized using the cost to cost percentage-of-completion method, measured by the ratio of costs incurred to total estimated costs at completion. In certain circumstances, revenue under contracts that have specified milestones or other performance criteria &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be recognized only when the customer acknowledges that such criteria have been satisfied. If an arrangement involves multiple deliverables, the delivered items are considered separate units of accounting if the items have value on a stand-alone basis. Amounts allocated to each element are based on its objectively determined fair value, such as the sales price for the product or service when it is sold separately or competitor prices for similar products or services.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In addition, recognition of revenue (and the related costs) &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be deferred for fixed price contracts until contract completion if the Company is unable to reasonably estimate the total costs of the project prior to completion. These contracts are subject to interpretation and management &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;make a judgment as to the amount of revenue earned and recorded. Because the Company has a small number of contracts, revisions to the percentage-of-completion determination, management interpretation or delays in meeting performance and contractual criteria or in completing projects &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;have a significant effect on revenue for the periods involved. Upon anticipating a loss on a contract, the Company recognizes the full amount of the anticipated loss in the current period.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Unbilled receivables represent expenditures on contracts, plus applicable profit margin, &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet billed. Unbilled receivables are normally billed and collected within &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; year. Billings made on contracts are recorded as a reduction of unbilled receivables, and to the extent that such billings and cash collections exceed costs incurred plus applicable profit margin, they are recorded as unearned revenues.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:RevenueRecognitionPolicyTextBlock>
  <us-gaap:Revenues contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670160" unitRef="iso4217-usd">195000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670161" unitRef="iso4217-usd">202000</us-gaap:Revenues>
  <us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-16">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Checking and savings accounts&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,400 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,241 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Overnight repurchase account&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7,014 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,180 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,414 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,421 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock>
  <us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-20">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Product development&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;13 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;53 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Selling, general and administratvie&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;78 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;165 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Total share-based compensation expense&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;91 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;218 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock>
  <us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-27">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 45pt; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Total Carrying Value in Consolidated Balance Sheet&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Quoted prices in active markets for identical assts or liabilities &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant other observable inputs &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant unobservable inputs&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 3)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 40%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="14"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Warrant liabilities&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;286 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;286 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 45pt; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Total Carrying Value in Consolidated Balance Sheet&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Quoted prices in active markets for identical assts or liabilities &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant other observable inputs &lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Significant unobservable inputs&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(Level 3)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 40%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="14"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="WIDTH: 48%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 10%"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="WIDTH: 1%"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 48%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Warrant liabilities&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;323 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 10%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;323 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock>
  <us-gaap:ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-22">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Project costs &lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;46 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;898 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Contract loss reserve&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;298 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;238 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Employee incentive payments&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;142 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;643 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Accrued salary and benefits&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;420 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;484 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Legal and accounting fees&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;358 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;478 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Accrued taxes payable&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;132 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;132 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Other&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;134 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;186 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1,530 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3,059 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock>
  <us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-17">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Barclay's Bank Agreement&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;361 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;334 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Santander Bank&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;515 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;488 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock>
  <us-gaap:ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-19">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Customer &lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Mitsui Engineering &amp;amp; Shipbuilding&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;67&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="MARGIN-BOTTOM: 0px; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-LEFT: 9pt; MARGIN-TOP: 0px; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: -9pt"&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;U.S. Department of Defense Office of&amp;nbsp; Naval Research&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;33&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock>
  <us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-25">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Average&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Remaining&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Shares&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Average&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Contractual&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Underlying&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Exercise&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Term&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Options&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Price&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(In Years)&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 49%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Outstanding as of April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;237,214 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;14.64 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7.6 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Granted&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Exercised&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cancelled/forfeited&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(6,910&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;161.18 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Outstanding as of July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;230,304 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10.24 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7.6 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Exercisable as of July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;128,641 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;16.10 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;6.3 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock>
  <us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-26">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Number&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Average Price per&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;of Shares&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Share&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Issued and unvested at April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;103,412 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;3.99 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Granted&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;114,584 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.40 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Vested&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(70,650&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4.55 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cancelled/forfeited&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;(125&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;)&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.40 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Issued and unvested at July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;147,221 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2.04 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock>
  <us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock contextRef="d_2017-05-01_2017-07-31" id="c-24">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Risk-free interest rate&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1.3&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected dividend yield&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;0.0&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected life (in years)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;5.5&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Expected volatility&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;N/A&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;85.6&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock>
  <us-gaap:SegmentReportingDisclosureTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633165">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11&lt;/div&gt;)&amp;nbsp;Operating Segments and Geographic Information&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company's business consists of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; segment as this represents management's view of the Company's operations. The Company operates on a worldwide basis with &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; operating company in the US and operating subsidiaries in the UK and in Australia. Revenues and expenses are generally attributed to the operating unit that bills the customers. During the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; the Company&amp;#x2019;s primary business operations were in North America.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:SegmentReportingDisclosureTextBlock>
  <us-gaap:SellingGeneralAndAdministrativeExpense contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20669985" unitRef="iso4217-usd">1641000</us-gaap:SellingGeneralAndAdministrativeExpense>
  <us-gaap:SellingGeneralAndAdministrativeExpense contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20669986" unitRef="iso4217-usd">1519000</us-gaap:SellingGeneralAndAdministrativeExpense>
  <us-gaap:ShareBasedCompensation contextRef="d_2017-05-01_2017-07-31" decimals="-3" id="c20670091" unitRef="iso4217-usd">91000</us-gaap:ShareBasedCompensation>
  <us-gaap:ShareBasedCompensation contextRef="d_2016-05-01_2016-07-31" decimals="-3" id="c20670092" unitRef="iso4217-usd">218000</us-gaap:ShareBasedCompensation>
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  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="d_2017-05-01_2017-07-31_AwardTypeAxis-NonVestedRestrictedStockMember" decimals="INF" id="c20670615" unitRef="xbrli-shares">114584</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue contextRef="d_2017-05-01_2017-07-31_AwardTypeAxis-NonVestedRestrictedStockMember" decimals="INF" id="c20670616" unitRef="iso4217-usd-per-xbrli-shares">1.40</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue>
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  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber contextRef="i_2017-04-30_AwardTypeAxis-NonVestedRestrictedStockMember" decimals="INF" id="c20670613" unitRef="xbrli-shares">103412</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber contextRef="i_2017-07-31_AwardTypeAxis-NonVestedRestrictedStockMember" decimals="INF" id="c20670621" unitRef="xbrli-shares">147221</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber>
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  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="i_2017-07-31_AwardTypeAxis-NonVestedRestrictedStockMember" decimals="INF" id="c20670622" unitRef="iso4217-usd-per-xbrli-shares">2.04</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>
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  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber contextRef="i_2017-07-31" decimals="INF" id="c20670610" unitRef="xbrli-shares">128641</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber>
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  <us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy contextRef="d_2017-05-01_2017-07-31" id="c20670243">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;k&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;) &lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Share-Based Compensation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Costs resulting from all share-based payment transactions are recognized in the consolidated financial statements at their fair values. The aggregate share-based compensation expense recorded in the consolidated statements of operations for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt; was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.1&lt;/div&gt; million and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.2&lt;/div&gt; million, respectively. The following table summarizes share-based compensation related to the Company&amp;#x2019;s share-based plans by expense category for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016:&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: 36pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;/div&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Product development&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;13 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;53 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Selling, general and administratvie&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;78 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;165 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Total share-based compensation expense&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;91 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;218 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy>
  <us-gaap:SharePrice contextRef="i_2016-10-19_SubsidiarySaleOfStockAxis-OfferingAgreementMember" decimals="INF" id="c20670193" unitRef="iso4217-usd-per-xbrli-shares">2.75</us-gaap:SharePrice>
  <us-gaap:SharePrice contextRef="i_2017-05-02_SubsidiarySaleOfStockAxis-OfferingAgreementMember" decimals="INF" id="c20670197" unitRef="iso4217-usd-per-xbrli-shares">1.30</us-gaap:SharePrice>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1 contextRef="d_2016-05-01_2016-07-31_AwardTypeAxis-EmployeeStockOptionMember" id="c20670592">P5Y182D</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 contextRef="i_2017-07-31" decimals="INF" id="c20670528" unitRef="iso4217-usd">4000</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1 contextRef="d_2017-05-01_2017-07-31" id="c20670612">P6Y109D</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares contextRef="i_2017-07-31" decimals="INF" id="c20670529" unitRef="xbrli-shares">100323</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 contextRef="d_2017-05-01_2017-07-31" id="c20670597">P7Y219D</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2>
  <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1 contextRef="d_2017-05-01_2017-07-31" id="c20670531">P9Y73D</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1>
  <us-gaap:SharesOutstanding contextRef="i_2017-04-30_StatementEquityComponentsAxis-CommonStockMember" decimals="INF" id="c20670009" unitRef="xbrli-shares">6313996</us-gaap:SharesOutstanding>
  <us-gaap:SharesOutstanding contextRef="i_2017-04-30_StatementEquityComponentsAxis-TreasuryStockMember" decimals="INF" id="c20670011" unitRef="xbrli-shares">-48065</us-gaap:SharesOutstanding>
  <us-gaap:SharesOutstanding contextRef="i_2017-07-31_StatementEquityComponentsAxis-CommonStockMember" decimals="INF" id="c20670073" unitRef="xbrli-shares">12621205</us-gaap:SharesOutstanding>
  <us-gaap:SharesOutstanding contextRef="i_2017-07-31_StatementEquityComponentsAxis-TreasuryStockMember" decimals="INF" id="c20670075" unitRef="xbrli-shares">-70081</us-gaap:SharesOutstanding>
  <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633142">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2&lt;/div&gt;)&amp;nbsp;Summary of Significant Accounting Policies&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(a)&amp;nbsp;Consolidation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify; MARGIN-TOP: 0px; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The accompanying consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 2pt"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(b) Use of Estimates&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The preparation of the consolidated financial statements requires management of the Company to make a number of estimates and assumptions relating to the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the period. Significant items subject to such estimates and assumptions include the recoverability of the carrying amount of property and equipment; fair value of warrant liabilities, valuation allowances for receivables and deferred income tax assets; estimated costs to complete projects; and percentage of completion of customer contracts for purposes of revenue recognition. Actual results could differ from those estimates. &lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The current economic environment, particularly the macroeconomic pressures in certain European countries, has increased the degree of uncertainty inherent in those estimates and assumptions.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(c) Revenue Recognition&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company&amp;#x2019;s contracts are either cost plus or fixed price contracts. Under cost plus contracts, customers are billed for actual expenses incurred plus an agreed-upon fee. Under cost plus contracts, a profit or loss on a project is recognized depending on whether actual costs are more or less than the agreed upon amount.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; types of fixed price contracts, firm fixed price and cost-sharing. Under firm fixed price contracts, the Company receives an agreed-upon amount for providing products and services specified in the contract, a profit or loss is recognized depending on whether actual costs are more or less than the agreed upon amount. Under cost-sharing contracts, the fixed amount agreed upon with the customer is only intended to fund a portion of the costs on a specific project. Under cost sharing contracts, an amount corresponding to the revenue is recorded in cost of revenues, resulting in gross profit on these contracts of zero. The Company&amp;#x2019;s share of the costs is recorded as product development expense.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Generally, revenue under fixed price or cost plus contracts is recognized using the cost to cost percentage-of-completion method, measured by the ratio of costs incurred to total estimated costs at completion. In certain circumstances, revenue under contracts that have specified milestones or other performance criteria &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be recognized only when the customer acknowledges that such criteria have been satisfied. If an arrangement involves multiple deliverables, the delivered items are considered separate units of accounting if the items have value on a stand-alone basis. Amounts allocated to each element are based on its objectively determined fair value, such as the sales price for the product or service when it is sold separately or competitor prices for similar products or services.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In addition, recognition of revenue (and the related costs) &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be deferred for fixed price contracts until contract completion if the Company is unable to reasonably estimate the total costs of the project prior to completion. These contracts are subject to interpretation and management &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;make a judgment as to the amount of revenue earned and recorded. Because the Company has a small number of contracts, revisions to the percentage-of-completion determination, management interpretation or delays in meeting performance and contractual criteria or in completing projects &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;have a significant effect on revenue for the periods involved. Upon anticipating a loss on a contract, the Company recognizes the full amount of the anticipated loss in the current period.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Unbilled receivables represent expenditures on contracts, plus applicable profit margin, &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet billed. Unbilled receivables are normally billed and collected within &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; year. Billings made on contracts are recorded as a reduction of unbilled receivables, and to the extent that such billings and cash collections exceed costs incurred plus applicable profit margin, they are recorded as unearned revenues.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(d)&amp;nbsp;Cash, Cash Equivalents, Restricted Cash and Security Agreements&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Cash and Cash Equivalents&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company considers all highly liquid investments with a maturity of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months or less when purchased to be cash equivalents. The Company invests excess cash in an overnight U.S. government securities repurchase bank account and a money market account. In accordance with the terms of the repurchase agreement, the Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; take possession of the related securities. The agreement contains provisions to ensure that the market value of the underlying assets remain sufficient to protect the Company in the event of default by the bank by requiring that the underlying securities have a total market value of at least &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100%&lt;/div&gt; of the bank&amp;#x2019;s total obligations under the agreement.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Checking and savings accounts&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,400 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,241 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Overnight repurchase account&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;7,014 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4,180 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,414 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,421 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&amp;nbsp;Restricted Cash and &lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;Security Agreements&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;A portion of the Company&amp;#x2019;s cash is restricted under the terms of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;two&lt;/div&gt; security agreements.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 0pt 0pt 26.4pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;One agreement is between the Company and Barclays Bank. Under this agreement, the cash is on deposit at Barclays Bank and serves as security for letters of credit and bank guarantees that are expected to be issued by Barclays Bank on behalf of OPT LTD, &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; of the Company's subsidiaries, under a credit facility established by Barclays Bank for OPT LTD. The credit facility is approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;#x20ac;0.3&lt;/div&gt; million (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million) and carries a fee of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1%&lt;/div&gt; per annum of the amount of any such obligations issued by Barclays Bank. The credit facility does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; have an expiration date, but is cancelable at the discretion of the bank. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017, &lt;/div&gt;there was &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;&amp;#x20ac;0.3&lt;/div&gt; million (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.3&lt;/div&gt; million) in letters of credit outstanding under this agreement.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;second&lt;/div&gt; agreement is between the Company and Santander Bank. Under this agreement, the cash is on deposit at Santander Bank and serves as security for letter of credit issued by Santander Bank for the lease of new warehouse/office space in Monroe Township, New Jersey. The agreement cannot be extended beyond &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; January 31, 2025, &lt;/div&gt;and is cancelable at the discretion of the bank. Restricted cash includes the following:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Barclay's Bank Agreement&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;361 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;334 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Santander Bank&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;515 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;488 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the statement of financial position that sum to the total of the same such amounts shown in the statement of cash flows.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 80%; MARGIN-LEFT: 10%; MARGIN-RIGHT: 10%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 62%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Cash and cash equivalents&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,414 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,421 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted cash- short term&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;361 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;334 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Restricted cash- long term&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;154 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;11,929 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #ffffff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 16%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;8,909 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(e) Marketable Securities&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Marketable securities with original maturities longer than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months but that mature in less than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; year from the balance sheet date are classified as current assets. Marketable securities that the Company has the intent and ability to hold to maturity are classified as investments held-to-maturity and are reported at amortized cost. The difference between the acquisition cost and face values of held-to-maturity investments is amortized over the remaining term of the investments and added to or subtracted from the acquisition cost and interest income. As of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017, &lt;/div&gt;all of the Company&amp;#x2019;s investments were classified as held-to-maturity.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(f)&amp;nbsp;Foreign Exchange Gains and Losses&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company has invested in certain certificates of deposit and has maintained cash accounts that are denominated in British pounds sterling, Euros and Australian dollars. These amounts are included in cash, cash equivalents, restricted cash and marketable securities on the accompanying consolidated balance sheets. Such positions &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;result in realized and unrealized foreign exchange gains or losses from exchange rate fluctuations, which are included in &amp;#x201c;Foreign exchange gain/(loss)&amp;#x201d;&amp;nbsp;in the accompanying consolidated statements of operations.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(g)&amp;nbsp;Property and Equipment&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Property and equipment is stated at cost, less accumulated depreciation and amortization. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; to &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;seven&lt;/div&gt; years) of the assets. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life of the asset or the remaining lease term. Expenses for maintenance and repairs are charged to operations as incurred. Property and equipment is also reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of the asset exceeds its estimated future cash flows, then an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(h)&amp;nbsp;Concentration of Credit Risk&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash balances, bank certificates of deposit and trade receivables. The Company invests its excess cash in highly liquid investments (principally, short-term bank deposits, Treasury bills, Treasury notes and money market funds) and does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; believe that it is exposed to any significant risks related to its cash accounts, money market funds or certificates of deposit.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The table below shows the percentage of the Company's revenues derived from customers whose revenues accounted for at least &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10%&lt;/div&gt; of the Company's consolidated revenues for at least &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt; of the periods indicated:&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 42.9pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Customer &lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Mitsui Engineering &amp;amp; Shipbuilding&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;67&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="MARGIN-BOTTOM: 0px; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; PADDING-LEFT: 9pt; MARGIN-TOP: 0px; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: -9pt"&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;U.S. Department of Defense Office of&amp;nbsp; Naval Research&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;33&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;- &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;100&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;%&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The loss of, or a significant reduction in revenues from a current customer could significantly impact the Company's financial position or results of operations. The Company does &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; require its customers to maintain collateral.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(i) Warrant Liabilities&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;The Company's warrants to purchase shares of its common stock are classified as warrant liabilities and are recorded at fair value. The warrant liabilities are subject to re-measurement at each balance sheet date and the Company recognizes any change in fair value in its consolidated statements of operations within &amp;#x201c;Change in fair value of warrant liabilities.&amp;#x201d; The Company will continue to adjust the carrying value of the warrants for changes in the estimated fair value until such time as these instruments are exercised or expire. At that time, the liabilities will be reclassified to &amp;#x201c;Additional paid-in capital&amp;#x201d;, a component of &amp;#x201c;Stockholders' equity&amp;#x201d; on the consolidated balance sheets.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(j)&amp;nbsp;Net Loss per Common Share&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Basic and diluted net loss per share for all periods presented is computed by dividing net loss by the weighted average number of shares of common stock outstanding during the period. Due to the Company's net losses, potentially dilutive securities, consisting of outstanding stock options and non-vested performance-based shares, were excluded from the diluted loss per share calculation due to their anti-dilutive effect.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In computing diluted net loss per share, options to purchase shares of common stock, warrants on common stock and non-vested restricted stock issued to employees and non-employee directors, totaling &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;701,977&lt;/div&gt; for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;711,453&lt;/div&gt; for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2016, &lt;/div&gt;were excluded from each of the computations as the effect would be anti-dilutive due to the Company's losses.&lt;div style="display: inline; font-weight: bold;"&gt; &amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;k&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;) &lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Share-Based Compensation&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Costs resulting from all share-based payment transactions are recognized in the consolidated financial statements at their fair values. The aggregate share-based compensation expense recorded in the consolidated statements of operations for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt; was approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.1&lt;/div&gt; million and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$0.2&lt;/div&gt; million, respectively. The following table summarizes share-based compensation related to the Company&amp;#x2019;s share-based plans by expense category for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;three&lt;/div&gt; months ended &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016:&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: 36pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;/div&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;Three months ended July 31,&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;2016&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Product development&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;13 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;53 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Selling, general and administratvie&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;78 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;165 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Total share-based compensation expense&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;91 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;218 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 3px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: 36pt"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;(l) Recently Issued Accounting Standards&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt 7.7pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 2014, &lt;/div&gt;the Financial Accounting Standards Board (&amp;#x201c;FASB&amp;#x201d;) issued Accounting Standards Update (&amp;#x201c;ASU&amp;#x201d;) &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt;&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09,&lt;/div&gt; &amp;#x201c;&lt;div style="display: inline; font-style: italic;"&gt;Revenue from Contracts with Customers (Topic &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;606&lt;/div&gt;).&amp;#x201d;&lt;/div&gt; ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;five&lt;/div&gt;-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. The FASB subsequently issued additional clarifying standards to address issues arising from implementation of the new revenue standard, including a &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;one&lt;/div&gt;-year deferral of the effective date for the new revenue standard. Public companies should now apply the guidance in ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; to annual reporting periods beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017&lt;/div&gt; and interim periods within those annual periods. Earlier application is permitted only as of annual reporting periods beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016,&lt;/div&gt; including interim periods within that annual period. As such, the Company is required to adopt this standard effective in fiscal &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2019,&lt;/div&gt; which begins &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2018. &lt;/div&gt;Companies &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;use either a full retrospective or a modified retrospective approach to adopt ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09.&lt;/div&gt; The Company has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet completed its final review of the impact of this guidance; however the Company anticipates applying the modified retrospective method upon adoption of ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2018.&lt;/div&gt;&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; The impact to the Company could be affected by the nature and terms of potential future contracts with customers, as those contracts &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;have terms that differ from the Company&amp;#x2019;s current contracts. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 0pt 0pt 7.5pt; LINE-HEIGHT: 1.25; TEXT-INDENT: 28.5pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August 2014, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Disclosure of Uncertainties about an Entity&amp;#x2019;s Ability&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;to Continue as a Going Concern&amp;#x201d;,&lt;/div&gt; which describes how an entity should assess its ability to meet obligations and sets rules for how this information should be disclosed in the financial statements. The standard provides accounting guidance that will be used along with existing auditing standards. The new standard applies to all entities for the &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;first&lt;/div&gt; annual period ending after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2016, &lt;/div&gt;and interim periods thereafter. Early application is permitted. The Company adopted ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2014&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15&lt;/div&gt; for the fiscal year &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2017.&lt;/div&gt; The Company&amp;#x2019;s addition of the standard did &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; have a material impact on its disclosures.&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; See section (c) &amp;#x201c;Liquidity/Going Concern&amp;#x201d; within Note (&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;1&lt;/div&gt;)&amp;nbsp;&amp;#x201c;Background and Liquidity&amp;#x201d; of the consolidated financial statements included in this Quarterly Report on Form &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;10&lt;/div&gt;-Q for further discussion on the Company&amp;#x2019;s ability to continue as a going concern.&lt;/div&gt;&lt;/div&gt; &lt;div style=" MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; January 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;01,&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt; &amp;#x201c;Recognition and Measurement of Financial Assets and Financial Liabilities&amp;#x201d;,&lt;/div&gt; which makes limited amendments to the guidance in U.S. GAAP on the classification and measurement of financial instruments. The update significantly revises an entity's accounting related to the classification and measurement of investments in equity securities and the presentation of certain fair value changes for financial liabilities measured at fair value. It also amends certain disclosure requirements associated with the fair value of financial instruments. The update will take effect for public companies for fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2017, &lt;/div&gt;including interim periods within those fiscal years. The Company will evaluate the effect of ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;01&lt;/div&gt; for future periods as applicable.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff; TEXT-INDENT: 21.6pt"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; February 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Leases (Topic&amp;nbsp;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;842&lt;/div&gt;&lt;/div&gt;).&amp;#x201d; The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;12&lt;/div&gt;&amp;nbsp;months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02&lt;/div&gt; is effective for annual periods beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December&amp;nbsp;&lt;/div&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2018,&lt;/div&gt; including interim periods within those annual periods, with early adoption permitted. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The Company is evaluating the effect ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;02&lt;/div&gt; will have on its consolidated financial statements and disclosures and has &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; yet determined the effect of the standard on its ongoing financial reporting at this time.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt 3.6pt 0pt 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; March 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Compensation - Stock Compensation (Topic&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;718&lt;/div&gt;)&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;.&lt;/div&gt;&lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201d;&lt;/div&gt; The amendments of ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; were issued as part of the FASB's Simplification initiative focused on improving areas of GAAP for which cost and complexity &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; may &lt;/div&gt;be reduced while maintaining or improving the usefulness of information disclosed within the financial statements. The amendments focused on simplification specifically with regard to share-based payment transactions, including accounting for forfeitures, income tax consequences, classification of awards as equity or liabilities and classification on the statement of cash flows. The guidance in ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;No.&lt;/div&gt; &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; is effective for fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2016, &lt;/div&gt;and interim periods within those annual periods. The Company adopted ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2017. &lt;/div&gt;Certain of the amendments are applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2017, &lt;/div&gt;while other amendments are applied retrospectively, prospectively or using either a prospective or a retrospective transition method. Upon adoption, the Company is beginning to account for forfeitures as they occur rather than estimate a forfeiture rate and has recorded a cumulative-effect adjustment in equity of approximately &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$10,000&lt;/div&gt; on the date of initial adoption. In periods subsequent to adoption, a higher expense will be recognized earlier during the respective vesting periods of stock-based awards that are &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;not&lt;/div&gt; forfeited. The Company expects that the income tax amendments within ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;09&lt;/div&gt; will have &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; impact on its results of operations or cash flows because it is in a net operating loss position with a full valuation allowance. &lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; August 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;15,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Statement of Cash Flows (Topic &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;230&lt;/div&gt;): Classification&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;of Certain Cash Receipts and Cash Payments&amp;#x201d;,&lt;/div&gt; providing additional guidance on &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;eight&lt;/div&gt; specific cash flow classification issues. The goal of the ASU is to reduce diversity in practice of classifying certain items. The amendments in the ASU are effective for&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2017, &lt;/div&gt;and interim periods within those fiscal years and early adoption is permitted. The Company has evaluated the effect ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;13&lt;/div&gt; will have on its consolidated financial statements and disclosures and has determined the standard will have &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;no&lt;/div&gt; impact on its ongoing financial reporting at this time.&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: justify; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;In &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; November 2016, &lt;/div&gt;the FASB issued ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;18,&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;&amp;#x201c;Statement of Cash Flows (Topic &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;230&lt;/div&gt;): Restricted&lt;/div&gt; &lt;div style="display: inline; font-style: italic;"&gt;Cash&amp;#x201d;,&lt;/div&gt; which amends guidance and presentation related to restricted cash in the statement of cash flows, including stating that amounts generally described as restricted cash and restricted cash equivalents should be included within cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown in the statement of cash flows. An entity is required to provide a disclosure indicating the reconciliation of all cash accounts. The amendments in the ASU are effective for&lt;/div&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt; fiscal years beginning after &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; December 15, 2017, &lt;/div&gt;and interim periods within those fiscal years and early adoption is permitted. The Company has early adopted ASU &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;2016&lt;/div&gt;-&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;18&lt;/div&gt; effective &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; May 1, 2017. &lt;/div&gt;In connection with the adoption of the standard the Company has used a retrospective transition method for each period presented in the statement of cash flows. The Company reclassified &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$488,000&lt;/div&gt; and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;$300,000&lt;/div&gt; of restricted cash to cash, cash equivalents and restricted cash, beginning of period for the period &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2016 &lt;/div&gt;in the statement of cash flows. 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  <us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest contextRef="i_2017-07-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" decimals="-3" id="c20670077" unitRef="iso4217-usd">200549000</us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest>
  <us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest contextRef="i_2017-07-31_StatementEquityComponentsAxis-RetainedEarningsMember" decimals="-3" id="c20670078" unitRef="iso4217-usd">-190043000</us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest>
  <us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest contextRef="i_2017-07-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="c20670079" unitRef="iso4217-usd">-138000</us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest>
  <us-gaap:StockholdersEquityNoteStockSplitConversionRatio1 contextRef="d_2015-10-22_2015-10-22_NonmonetaryTransactionTypeAxis-ReverseStockSplitMember" decimals="INF" id="c20670692" unitRef="xbrli-pure">10</us-gaap:StockholdersEquityNoteStockSplitConversionRatio1>
  <us-gaap:SupplementalBalanceSheetDisclosuresTextBlock contextRef="d_2017-05-01_2017-07-31" id="s633150">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&amp;nbsp;&lt;div style="display: inline; font-weight: bold;"&gt;(&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;4&lt;/div&gt;)&amp;nbsp;Accrued Expenses&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Accrued expenses consist of the following at &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; July 31, 2017 &lt;/div&gt;and &lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt; April 30, 2017.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" TEXT-ALIGN: left; MARGIN: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;/div&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 90%; MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%; TEXT-INDENT: 0px;" cellspacing="0" cellpadding="0" border="0"&gt;  &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;July 31, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center" colspan="2"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;April 30, 2017&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; PADDING-BOTTOM: 1px"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; TEXT-ALIGN: center" colspan="6"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;(in thousands)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;td&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 66%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Project costs &lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;46 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;$&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;898 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Contract loss reserve&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;298 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;238 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Employee incentive payments&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;142 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;643 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Accrued salary and benefits&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;420 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;484 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Legal and accounting fees&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;358 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;478 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #ffffff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Accrued taxes payable&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;132 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #ffffff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;132 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #ffffff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="BACKGROUND-COLOR: #cceeff"&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt; &lt;div style=" MARGIN-BOTTOM: 0pt; MARGIN-TOP: 0pt; LINE-HEIGHT: 1.25"&gt;&lt;div style="display: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif"&gt;Other&lt;/div&gt;&lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 14%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff"&gt;&lt;div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;"&gt;134 &lt;/div&gt;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; PADDING-BOTTOM: 1px; MARGIN-LEFT: 0pt; BACKGROUND-COLOR: #cceeff" nowrap="nowrap"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, Times, serif; WIDTH: 1%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid; BACKGROUND-COLOR: #cceeff"&gt;&amp;nbsp;&lt;/td&gt; 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