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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Restricted cash includes the following:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%; padding-bottom: 1.5pt"><font style="font-size: 10pt">Santander Bank</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid; width: 1%"> </td>
<td style="border-bottom: black 1.5pt solid; width: 16%; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid; width: 1%"> </td>
<td style="border-bottom: black 1.5pt solid; width: 16%; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The following table provides a reconciliation
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<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
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<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
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<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
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<td style="width: 62%"><font style="font-size: 10pt">Cash and cash equivalents</font></td>
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<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
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<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Restricted cash- short term</font></td>
<td> </td>
<td> </td>
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<td> </td>
<td> </td>
<td> </td>
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<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Restricted cash- long term</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">221</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">221</font></td>
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<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
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<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">10,930</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
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P2Y4M24D
1.018
1.113
555475
555441
81334
34
62441
3.19
3.13
1086.00
19.51
P9Y6M0D
P9Y3M19D
P7Y7M6D
13513
13513
51547
1.48
1.48
732036
25000
168842
11487
99000
89000
5000
3000
12000
0
233000
5000
18000
P9M18D
P3M19D
P4M24D
5000000
177000
331000
154000
279870
1.00
1
The SBA allows loan forgiveness for eligible costs incurred and paid which include (a) payroll costs, (b) interest on any real or personal property mortgage prior to February 15, 2020, (c) rent on any lease in force prior to February 15, 2020, and (d) utility payments for which service began before February 15, 2020.
The awards can vest over 2 years if there is positive total shareholder return (e.g. share price increase) as measured to the 5-day (January 11-15, 2021) and (January 10-14, 2022) share price Volume Weighted Average Price ("VWAP").
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(16) Income Taxes</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Uncertain Tax Positions</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 not to be sustained upon examination, based
on the technical merits of the position. The Company is currently undergoing an income tax audit in Spain for the period from
2011 to 2014, when our Spanish branch was closed. At July 31, 2020 the Company had no other unrecognized tax positions. The Company
does not expect any material increase or decrease in its income tax expense in the next twelve months, related to examinations
or uncertain tax positions. U.S. federal and state income tax returns were audited through fiscal 2014 and fiscal 2010 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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(14) Fair Value Measurements</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">ASC Topic 820 <i>“Fair Value Measurements”</i>
states that fair value is an exit price, representing the amount 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. Assets and liabilities that are measured
at fair value are reported using a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This
hierarchy maximizes the use of observable input and minimizes the use of unobservable inputs. The following is a description of
the three hierarchy levels.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="width: 72px; text-align: justify"><font style="font-size: 10pt">Level 1</font></td>
<td style="text-align: justify"><font style="font-size: 10pt">Unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.</font></td></tr>
<tr style="vertical-align: top">
<td> </td>
<td> </td></tr>
<tr style="vertical-align: top">
<td style="text-align: justify"><font style="font-size: 10pt">Level 2</font></td>
<td style="text-align: justify"><font style="font-size: 10pt">Inputs other than quoted prices in active markets that are observable for the asset or liability, either directly or indirectly.</font></td></tr>
<tr style="vertical-align: top">
<td> </td>
<td> </td></tr>
<tr style="vertical-align: top">
<td style="text-align: justify"><font style="font-size: 10pt">Level 3</font></td>
<td style="text-align: justify"><font style="font-size: 10pt">Inputs that are unobservable for the asset or liability.</font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Disclosure of Fair Values</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company’s financial instruments that
are not re-measured at fair value include cash, cash equivalents, restricted cash, accounts receivable, contract assets and liabilities,
deposits, accounts payable, and accrued expenses. The carrying values of these financial instruments approximate their fair values
and are viewed as Level 1 items. The Company’s warrant liabilities represent the only asset or liability classified financial
instrument that is measured at fair value on a recurring basis.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The fair value of the Company’s warrant
liabilities (refer to Note 8) is based on the Black-Scholes option pricing model which is based on Level 3 unobservable inputs
for which there is little or no market data, requiring the Company to develop its own assumptions. The assumptions used by the
Company are the quoted price of the Company’s common stock in an active market, risk-free interest rate, volatility and expected
life, and assumes no dividends. 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. The fair value on a recurring basis
as of July 31, 2020 and April 30, 2020 was near zero.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company determined the fair value using
the Black-Scholes option pricing model with the following assumptions:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.55in"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Dividend rate</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">0.0</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">0.0</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Risk-free rate</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0.1</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">1.9</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Expected life (years)</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">1.0 - 1.4</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">2.0 - 2.4</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Expected volatility</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">101.8</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">111.3</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.55in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Unrealized gains of approximately zero and
$6,000 for the three months ended July 31, 2020 and 2019, respectively, were included within “Gain due to change in fair
value of warrant liabilities” in the Consolidated Statements of Operations.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Besides the unrealized gain in fair value,
there was no other activity to the balances in warrant liabilities during the three months ended July 31, 2020 and 2019, respectively.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Transfers into or out of any hierarchy level
are recognized at the end of the reporting period in which the transfers occurred. There were no transfers between any hierarchy
levels during each of the three months ended July 31, 2020 and 2019.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(13) Stock-Based Compensation</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In 2015, upon approval by the Company’s
stockholders, the Company’s 2015 Omnibus Incentive Plan (the “2015 Plan”) became effective. A total of 732,036
shares are authorized for issuance under the 2015 Omnibus Incentive Plan, including shares available for awards under the 2006
Stock Incentive Plan remaining at the time that plan terminated, or that were subject to awards under the 2006 Stock Incentive
Plan that thereafter terminated by reason of expiration, forfeiture, cancellation or otherwise. If any award under the 2006 Stock
Incentive Plan or 2015 Plan expires, is cancelled, terminates unexercised or is forfeited, those shares become again available
for grant under the 2015 Plan. The 2015 Plan will terminate ten years after its effective date, in October 2025, but is subject
to earlier termination as provided in the 2015 Plan. As of July 31, 2020, the Company has 168,842 shares available for future issuance
under the 2015 Plan.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On January 18, 2018, the Company’s Board
of Directors adopted the Company’s Employment Inducement Incentive Award Plan (the “2018 Inducement Plan”) pursuant
to which the Company reserved 25,000 shares of common stock for issuance under the Inducement Plan. In accordance with Rule 5635(c)(4)
and Rule 5635(c)(3) of the Nasdaq Listing Rules, awards under the Inducement Plan may only be made to individuals not previously
employees of the Company (or following such individuals’ bona fide period of non-employment with the Company), as an inducement
material to the individuals’ entry into employment with the Company. An award is any right to receive the Company’s
common stock pursuant to the 2018 Inducement Plan, consisting of a performance share award, restricted stock award, a restricted
stock unit award or a stock payment award. As of July 31, 2020, there were 11,487 shares available for grant under the 2018 Inducement
Plan.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Stock Options</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company estimates the fair value of each
stock option award granted with service-based vesting requirements, using the Black-Scholes option pricing model, assuming no 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
is estimated using the “simplified” method as permitted by the SEC’s Staff Accounting Bulletin No. 110, <i>Share-Based
Payment.</i> Expected volatility is based on the Company’s historical volatility over the expected life of the stock option
granted. There were no shares granted in the three months ended July 31, 2020 or 2019.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Performance Stock Options</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In January of 2020, the Company issued 81,334
performance-based stock options to two of its executives. The awards can vest over 2 years if there is positive total shareholder
return (e.g. share price increase) as measured to the 5-day (January 11-15, 2021) and (January 10-14, 2022) share price Volume
Weighted Average Price (“ VWAP”). The Company determined these awards contain a market- based condition and estimated
the fair value using the Monte Carlo simulation model. There were 81,334 shares unvested and outstanding as of July 31, 2020.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify">A summary of stock options under
our stock incentive plans is detailed in the following table.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: center"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Weighted</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Average</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Weighted</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Remaining</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Shares</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Average</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Contractual</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Underlying</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Exercise</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Term</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Options</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Price</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>(In Years)</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 43%"><font style="font-size: 10pt">Outstanding as of April 30, 2020</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">555,475</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">3.19</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">9.5</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Granted</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Exercised</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Cancelled/forfeited</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(34</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 1.5pt; text-align: right"><font style="font-size: 10pt">1,086.00</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt; text-align: right"> </td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Outstanding as of July 31, 2020</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">555,441</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">3.13</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">9.3</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Exercisable as of July 31, 2020</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">62,441</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">19.51</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">7.6</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">As of July 31, 2020, the total intrinsic value
of both outstanding and exercisable options was zero. As of July 31, 2020, approximately 493,000 additional options were unvested,
which had no intrinsic value and a weighted average remaining contractual term of 9.5 years. There was approximately $99,000 and
$89,000 of total recognized compensation cost related to stock options during each of the three months ended July 31, 2020 and
2019, respectively. As of July 31, 2020, there was approximately $233,000 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 0.8 years. The
Company typically issues newly authorized but unissued shares to satisfy option exercises under these plans.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Restricted Stock</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 three months ended July 31, 2020, the Company granted no shares subject to service-based vesting
requirements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">A summary of non-vested restricted stock under
our stock incentive plans is as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Weighted</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Number</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Average Price per</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>of Shares</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Share</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 58%; text-align: justify"><font style="font-size: 10pt">Issued and unvested at April 30, 2020</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">13,513</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 20%; text-align: right"><font style="font-size: 10pt">1.48</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="text-align: justify"><font style="font-size: 10pt">Granted</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="text-align: justify"><font style="font-size: 10pt">Vested</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt; text-align: justify"><font style="font-size: 10pt">Cancelled/forfeited</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">-</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 1.5pt; text-align: right"><font style="font-size: 10pt">-</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt; text-align: justify"><font style="font-size: 10pt">Issued and unvested at July 31, 2020</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">13,513</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">1.48</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">There was approximately $5,000 and $3,000 of
total recognized compensation cost related to restricted stock for the three months ended July 31, 2020 and 2019, respectively.
As of July 31, 2020, there is $5,000 unrecognized compensation cost remaining related to unvested restricted stock granted under
our plans. This cost is expected to be recognized over a weighted-average period of 0.3 years.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In December 2019, the Company granted 51,547
shares, subject to service-based vesting requirements, to an employee that were outside the Company stock incentive plans. There
was approximately $12,000 and zero of total recognized compensation cost related to this award for the three months ended July
31, 2020 and 2019, respectively. As of July 31, 2020, there is $18,000 unrecognized compensation cost remaining related to this
award. This cost is expected to be recognized over a weighted-average period of 0.4 years.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(12) Treasury Shares</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">During each of the three months ended July
31, 2020 and 2019, no shares of common stock were purchased by the Company from employees to pay taxes related to the vesting of
restricted stock.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(11) Common Stock</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On January 7, 2019, the Company entered into
the 2019 ATM Facility with AGP, under which the Company may issue and sell to or through A.G.P./Alliance Global Partners, acting
as agent and/or principal, shares of the Company’s common stock having an aggregate offering price of up to $25 million.
Through July 31, 2020, under the 2019 ATM Facility the Company had sold and issued an aggregate of 5,913,362 shares of its common
stock with an aggregate market value of $5.0 million at an average price of $0.85 per share and paid AGP a sales commission of
approximately $162,448 related to those shares.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On April 8, 2019, the Company sold 1,542,000
shares of common stock, which includes the sale of 642,000 shares of the Company’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, prefunded warrants to purchase
up to 3,385,680 shares of common stock and common warrants to purchase up to 4,927,680 shares of common stock in an underwritten
public offering. The net proceeds to the Company from the offering were approximately $15.7 million, after deducting underwriter’s
fees and offering expenses payable by the Company.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On October 24, 2019, the Company entered into
a new common stock purchase agreement with Aspire Capital which provided that, subject to certain terms, conditions and limitations,
Aspire Capital is committed to purchase up to an aggregate of $10.0 million of shares of the Company’s common stock over
a 30-month period that does not exceed 19.99% of the outstanding common stock on the date of the agreement. The number of shares
the Company could issue within the 19.99% limit was 1,219,010 shares including the shares issued as a commitment fee. In consideration
for entering into the agreement, the Company issued to Aspire Capital 194,805 shares of common stock as a commitment fee. Shareholder
approval was needed for sale of common stock over the 19.99% limit of the outstanding common stock on the date of the agreement.
At the 2019 annual meeting of stockholders, held on December 20, 2019, the Company’s stockholders approved an additional
5,400,000 shares to be issued pursuant to the common stock purchase agreement. Through July 31, 2020, the Company has sold an aggregate
of 6,424,205 shares of common stock with an aggregate market value of $4.0 million at an average price of $0.63 per share pursuant
to this common stock purchase agreement.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(10) Preferred Stock</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has authorized 5,000,000 shares
of undesignated preferred stock with a par value of $0.001 per share. As of July 31, 2020, no shares of preferred stock had been
issued.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(8) Warrants</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Liability Classified Warrants</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On June 2, 2016, the Company entered into a
securities purchase agreement, which was amended on June 7, 2016 (as amended, the “June Purchase Agreement”) with certain
institutional purchasers (the “June Purchasers”). Pursuant to the terms of the June Purchase Agreement, the Company
sold an aggregate of 20,850 shares of Common Stock together with warrants to purchase up to an aggregate of 7,298 shares of Common
Stock.. The warrants have an exercise price of $121.60 per share, became exercisable on December 3, 2016 (“Initial Exercise
Date”), and will expire five years following the Initial Exercise Date. As of July 31, 2020, none of the warrants have been
exercised.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On July 22, 2016, the Company entered into
a Second Amendment to the Purchase Agreement (the “Second Amended Purchase Agreement”) with certain institutional purchasers
(the “July Purchasers”). Pursuant to the terms of the Second Amended Purchase Agreement, the Company sold an aggregate
of 29,750 shares of Common Stock together with warrants to purchase up to an aggregate of 8,925 shares of Common Stock.. The Warrants
were exercisable immediately at an exercise price of $187.20 per share. The Warrants will expire on the fifth (5th) anniversary
of the initial date of issuance. As of July 31, 2020, none of the warrants have been exercised.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Equity Classified Warrants</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On April 8, 2019, the Company issued and sold
1,542,000 shares of common stock and pre-funded warrants to purchase up to 3,385,680 shares of common stock and common warrants
to purchase up to 4,927,680 shares of our common stock in an underwritten public offering. The public offering price for the pre-funded
warrants was equal to the public offering price of the common stock, less the $0.01 per share exercise price of each warrant. As
of July 31, 2020, all of the pre-funded warrants have been exercised. The common stock warrants have an exercise price of $3.85
per share and expire five years from the issuance date. As of July 31, 2020, none of the common stock warrants have been exercised.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 2.15pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company accounts for warrants issued in
connection with its June and July 2016 public offerings in accordance with the guidance in Topic 480 which provides that the Company
classify the warrant instruments as a liability at its fair value. The warrant liabilities are subject to re-measurement at each
balance sheet date using the Black-Scholes option pricing model. The June and July 2016 warrants contain a feature whereby they
could require the transfer of assets and therefore are classified as a liability award in accordance with the guidance in Topic
480. The warrants have a value close to zero at July 31, 2020 and April 30, 2020 and are reflected within “Warrant liabilities”
in the Consolidated Balance Sheets. The pre-funded and common warrants issued in the Company’s April 8, 2019 public offering
did not meet the criteria to be classified as a liability award and therefore were treated as an equity award and recorded as a
component of stockholders’ equity in the Consolidated Balance Sheets.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(7) Accrued Expenses</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Accrued expenses consist of the following at
July 31, 2020 and April 30, 2020:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Project costs</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">23</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">48</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Contract loss reserve</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">209</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">216</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Employee incentive payments</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">277</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Accrued salary and benefits</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">532</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">483</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Legal and accounting fees</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">280</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">283</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Accrued taxes payable</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">331</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">177</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">131</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">146</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,783</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,353</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(6) Leases</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Lessor Information</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.1in 0 2pt; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">As of July 31, 2020, the Company has one lease
which has been classified as an operating lease per accounting guidance contained within ASC Topic 842,” <i>Leases”</i>.
The Company’s remaining term on this operating lease is less than 16 months. The maturity of lease payments remaining on
this lease is immaterial.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.1in 0 2pt; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Lessee Information</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.1in 0 2pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has a lease for its facility located
in Monroe Township, New Jersey that is used as warehouse/production space and the Company’s principal offices and corporate
headquarters. The initial lease term is for 7 years with an option to extend the lease for another 5 years. The lease is classified
as an operating lease. The operating lease is included in right-of-use assets, lease liabilities- current and lease liabilities-
long-term on the Company’s Consolidated Balance Sheets.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Right-of-use asset and operating lease liabilities
are recognized based on the present value of future minimum lease payments over the lease term at commencement date. When the implicit
rate of the lease is not provided or cannot be determined, the Company uses the incremental borrowing rate based on the information
available at the effective date to determine the present value of future payments. Lease terms may include options to extend or
terminate the lease when it is reasonably certain that the Company will exercise those options. The renewal options have not been
included in the lease term as they are not reasonably certain of exercise. Lease expense for minimum lease payments is recognized
on a straight- line basis over the lease term and consists of interest on the lease liability and the amortization of the right
of use asset. Variable lease expenses, if any, are recorded as incurred.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 5.05pt 0 2.15pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On June 10, 2020 the Company signed a 12-month
lease for office space in Houston, Texas. The lease can be extended by the Company by providing the lessor on or before the notice
date of the Company’s intent to renew or terminate the lease. ASC Topic 842, <i>“Leases”</i> allows a company
an accounting policy election to recognize lease payments to the Consolidated Statement of Operations on a straight-line basis
if the lease term is equal to or less 12 months and not recognize a right-of use asset and lease liability. The accounting policy
is made on the commencement date of the lease.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 5.25pt 0 2pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The operating cash flows from operating leases
cash payments for the three months ended July 31, 2020 and 2019 was $83,000 and $79,000, respectively.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 5.25pt 0 2pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The operating lease straight-line expense in
the Consolidated Statement of Operations for both the three months ended July 31, 2020 and 2019 was as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 2.15pt; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Operating lease cost</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Short-term lease cost</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">2</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">-</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total lease cost</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">81</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 2.15pt; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Information related to the Company’s
right-of use assets and lease liabilities as of July 31, 2020 was as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 2pt; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt"><u>Operating lease:</u></font></td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="width: 77%"><font style="font-size: 10pt">Operating right-of-use asset, net</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 20%; text-align: right"><font style="font-size: 10pt">1,113</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-left: 10pt"><font style="font-size: 10pt">Right-of-use liability- current</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">236</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt; padding-left: 10pt"><font style="font-size: 10pt">Right-of-use liability- long term</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">1,017</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total lease liability</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,253</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Weighted average remaining lease term- operating leases</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">4.23 years</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Weighted average discount rate- operating leases</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">8.5</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Total remaining lease payments under the Company’s
operating leases are as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 77%"><font style="font-size: 10pt">Remainder of fiscal year 2021</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 20%; text-align: right"><font style="font-size: 10pt">250</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">2022</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">341</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">2023</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">352</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">2024</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">362</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">2025</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">184</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Total future minimum lease payments</font></td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">1,489</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Less imputed interest</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(236</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,253</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(5) Property and Equipment, net</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The components of property and equipment, net
as of July 31, 2020 and April 30, 2020 consisted of the following:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 27.5pt"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Equipment</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">342</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">342</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Computer equipment & software</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">486</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">486</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Office furniture & equipment</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">339</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">339</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Leasehold improvements</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">474</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">474</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Construction in process</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">15</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">15</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">1,656</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">1,656</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Less: accumulated depreciation</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(1,194</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(1,157</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">462</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">499</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Depreciation expense was approximately $37,000
and $38,000 for the three-month period ended July 31, 2020 and 2019, respectively.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(4) Other Current Assets</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Other current assets consist of the following
at July 31, 2020 and April 30, 2020:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Deposits</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">9</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">60</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Other receivables</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">2</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">2</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Prepaid insurance</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">143</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">124</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Prepaid offering costs</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">81</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">275</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Prepaid expenses- other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">212</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">127</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">447</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">588</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(3) Account Receivable, Contract Assets,
and Contract Liabilities</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The following provides further details on the
balance sheet accounts of accounts receivable, contract assets, and contract liabilities.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Accounts Receivable</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company grants credit to its customers,
generally without collateral, under normal payment terms (typically 30 to 60 days after invoicing). Generally, invoicing occurs
after the related services are performed or control of good has transferred to the customer. Accounts receivable represents an
unconditional right to consideration arising from the Company’s performance under contracts with customers. The carrying
value of such receivables represent their estimated realizable value. Accounts receivable consisted of the following at July 31,
2020 and April 30, 2020.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Opening balance</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">105</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">63</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Amount invoiced to customers</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">21</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">1,386</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Collections</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(105</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(1,344</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Ending balance</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">21</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">105</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Contract Assets and Contract Liabilities</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Contract assets include unbilled amounts typically
resulting from arrangements whereby the right to payment is conditioned on completing additional tasks or services for a performance
obligation. The increase in contract assets is primarily a result of services performed relating to our project with Enel Green
Power that has not been billed during the three months ended July 31, 2020.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Contract liabilities consist of amounts invoiced
to customers in excess of revenue recognized. The decrease in contract liabilities is primarily due to recognition of revenue relating
to our Eni project during the three months ended July 31, 2020.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"><b>(2) Summary of Significant Accounting
Policies</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(a) Consolidation</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 7.5pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(b) Use of Estimates</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white">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 estimated costs to complete projects; and percentage of completion of customer contracts for purposes of
revenue recognition. Actual results could differ from those estimates.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(c) Cash, Cash Equivalents, Restricted
Cash and Security Agreements</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Cash and Cash Equivalents</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company considers all highly liquid investments
with a maturity of three months or less when purchased to be cash equivalents. The Company invests excess cash in a money market
account.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Checking and savings accounts</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">2,002</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">1,551</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Money market account</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">9,063</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">8,451</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">11,065</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">10,002</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Restricted Cash and Security Agreements</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has two agreements with Santander
Bank. Cash is on deposit at Santander Bank and serves as security for a letter of credit issued by Santander Bank for the lease
of warehouse/office space in Monroe Township, New Jersey. This agreement cannot be extended beyond July 31, 2025 and is cancelable
at the discretion of the bank. Santander Bank also issued two letters of credit to subsidiaries of Enel Green Power (“EGP”)
pursuant to the Company’s contracts with EGP. The first letter of credit was issued in the amount of $125,690 that expires
in February 2021. The second letter of credit was issued in the amount of $645,467. This second letter of credit will be reduced
to $322,734 in August 2020 and to $64,547 in September 2020. The remaining amount expires in October 2021.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Restricted cash includes the following:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%; padding-bottom: 1.5pt"><font style="font-size: 10pt">Santander Bank</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid; width: 1%"> </td>
<td style="border-bottom: black 1.5pt solid; width: 16%; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid; width: 1%"> </td>
<td style="border-bottom: black 1.5pt solid; width: 16%; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The following table provides a reconciliation
of cash, cash equivalents and restricted cash reported within the Statement of Financial Position that sum to the total of the
same such amounts shown in the Statement of Cash Flows.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Cash and cash equivalents</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">11,065</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">10,002</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Restricted cash- short term</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">707</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">707</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Restricted cash- long term</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">221</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">221</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">11,993</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">10,930</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(d) Concentration of Credit Risk</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Financial instruments that potentially subject
the Company to credit risk consist principally of accounts receivable and cash and cash equivalents. The Company believes that
its credit risk is limited because the Company’s current contracts are with companies with strong financial strength. The
Company invests its excess cash in a money market account and does not believe that it is exposed to any significant risks related
to its cash and money market accounts. Cash and cash equivalents are also maintained at foreign financial institutions. Cash and
cash equivalents in foreign financial institutions as of July 31, 2020 was $0.3 million.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The table below shows the percentage of the
Company’s revenues derived from customers whose revenues accounted for at least 10% of the Company’s consolidated revenues
for at least one of the periods indicated:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Eni S.p.A.</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">17</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">14</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Premier Oil UK Limited</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">16</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">47</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">EGP</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">67</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">U.S. Navy</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">26</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">0</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">%</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">13</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">100</font></td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">%</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">100</font></td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">%</font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 not require its customers to maintain collateral.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(e) Share-Based Compensation</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white">Costs resulting from
all share-based payment transactions are recognized in the consolidated financial statements at their fair values. The following
table summarizes share-based compensation related to the Company’s share-based plans by expense category for the three months
ended July 31, 2020 and 2019:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Engineering and product development</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">37</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">20</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Selling, general and administrative</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">72</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total share-based compensation expense</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">116</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">92</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(f) <i>Revenue Recognition</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">A performance obligation is the unit of account
for revenue recognition. The Company assesses the goods or services promised in a contract with a customer and identifies as a
performance obligation either: a) a good or service (or a bundle of goods or services) that is distinct; or b) a series of distinct
goods or services that are substantially the same and that have the same pattern of transfer to the customer. A contract may contain
a single or multiple performance obligations. For contracts with multiple performance obligations, the Company allocates the contracted
transaction price to each performance obligation based upon the relative standalone selling price, which represents the price the
Company would sell a promised good or service separately to a customer. The Company determines the standalone selling price based
upon the facts and circumstances of each obligated good or service. The majority of the Company’s contracts have no observable
standalone selling price since the associated products and services are customized to customer specifications. As such, the standalone
selling price generally reflects the Company’s forecast of the total cost to satisfy the performance obligation plus an appropriate
profit margin.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The nature of the Company’s contracts
may give rise to several types of variable consideration, including unpriced change orders and liquidated damages and penalties.
Variable consideration can also arise from modifications to the scope of services. Variable consideration is included in the transaction
price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur once the uncertainty
associated with the variable consideration is resolved. Our estimates of variable consideration and determination of whether to
include such amounts in the transaction price are based largely on our assessment of legal enforceability, performance and any
other information (historical, current, and forecasted) that is reasonably available to us. Accounting Standards Update (“ASU”)
2016-10 provides a practical expedient that permits presentation of shipping and handling costs, that occur after control of the
promised goods or services transfer to the customer, as fulfillment costs rather than evaluating whether the shipping and handling
activities are promised services to the customer. The Company adopted this practical expedient, but it did not have a material
effect on its Consolidated Financial Statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company recognizes revenue when or as it
satisfies a performance obligation by transferring a good or service to a customer, either (1) at a point in time or (2) over time.
A good or service is transferred when or as the customer obtains control of it. The evaluation of whether control of each performance
obligation is transferred at a point in time or over time is made at contract inception. Input measures such as costs incurred
or time elapsed are utilized to assess progress against specific contractual performance obligations for the Company’s services.
The selection of the method to measure progress towards completion requires judgment and is based on the nature of the services
to be provided. For the Company, the input method using costs incurred or time elapsed best represents the measure of progress
against the performance obligations incorporated within the contractual agreements. When the Company’s estimate of total
costs to be incurred to satisfy the performance obligations exceed revenue, the Company recognizes the loss immediately.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company’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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has two 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’s share of the costs is recorded as product
development expense. The Company reports its disaggregation of revenue by contract type since this method best represents the Company’s
business. For the three-month period ended July 31, 2020 and 2019, all of the Company’s contracts were classified as firm
fixed price.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">As of July 31, 2020, the Company’s total
remaining performance obligations, also referred to as backlog, totaled $0.8 million. The Company expects to recognize approximately
73%, or $0.6 million, of the remaining performance obligations as revenue over the next twelve months.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>PB3 PowerBuoy® Leasing</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company enters into lease arrangements
with certain customers for their PB3 PowerBuoy® (“PB3”). As of July 31, 2020, the Company has one lease arrangement
with a remaining lease term of less than 16 months. Revenue related to multiple-element arrangements is allocated to lease and
non-lease elements based on their relative standalone selling prices or expected cost plus a margin approach. Lease elements generally
include a PB3 and components, while non-lease elements generally include engineering, monitoring and support services. In the lease
arrangement, the customer is provided an option to extend the lease term or purchase the leased PB3 at some point during and/or
at the end of the lease term.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 5.15pt 0 2pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company classifies leases as either operating
or financing in accordance with the authoritative accounting guidance contained within ASC Topic 842, <i>“Leases”.</i>
At inception of the contract, the Company evaluates the lease against the lease classification criteria within ASC Topic 842. If
the direct financing or sales-type classification criteria are met, then the lease is accounted for as a finance lease. All others
are treated as an operating lease.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company recognizes revenue from operating
lease arrangements generally on a straight-line basis over the lease term and is presented in Revenues in the Consolidated Statement
of Operations. The lease income for the three months ended July 31, 2020 and 2019 was immaterial.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(g) Net Loss per Common Share</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 and common stock equivalents
outstanding during the period. The pre-funded warrants were determined to be common stock equivalents and have been included in
the weighted average number of shares outstanding for calculation of the basic earnings per share number. Due to the Company’s
net losses, potentially dilutive securities, consisting of options to purchase shares of common stock, warrants on common stock
and non-vested restricted stock issued to employees and non-employee directors, were excluded from the diluted loss per share calculation
due to their anti-dilutive effect.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In computing diluted net loss per share on
the Consolidated Statement of Operations, warrants on common stock, options to purchase shares of common stock and non-vested restricted
stock issued to employees and non-employee directors, totaling 5,564,404 and 5,008,145 for the three months ended July 31, 2020
and 2019, respectively, were excluded from each of the computations as the effect would be anti-dilutive due to the Company’s
losses.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(h) Recently Issued Accounting Standards</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 12.95pt 0 0; text-align: justify">In June 2016, the FASB issued ASU
No. 2016-13, “<i>Financial Instruments </i>- <i>Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments.”
</i>The amendment in this update replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects
expected credit losses on instruments within its scope, including trade receivables. This update is intended to provide financial
statement users with more decision-useful information about the expected credit losses. This ASU is effective for public entities,
excluding entities eligible to be Smaller Reporting Companies for annual periods and interim periods beginning after December 15,
2019. In November 2019, the FASB issued No. 2019-10, <i>Financial Instruments—Credit Losses (Topic 326), Derivatives and
Hedging (Topic 815), and Leases (Topic 842)</i>, which deferred the effective date of ASU 2016-13 for Smaller Reporting Companies
for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, assuming the Company remains
a Smaller Reporting Company.The Company is currently evaluating the impact the adoption of ASU 2016-13 will have on its consolidated
financial statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In August 2018, the FASB issued ASU No. 2018-13,
<i>“Fair Value Measurement (Topic 820).” </i>The ASU modifies, removes, and adds several disclosure requirements on
fair value measurements in Topic 820, Fair Value Measurement. ASU 2018-13 is effective for all entities for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses,
the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative
description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented
in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their
effective date. Early adoption is permitted upon issuance of ASU 2018-13. An entity is permitted to early adopt any removed or
modified disclosures upon issuance of ASU 2018-13 and delay adoption of the additional disclosures until their effective date.
The Company adopted this guidance effective May 1, 2020. The adoption of the guidance did not have a material effect on its Consolidated
Financial Statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In August 2018, the FASB issued ASU No. 2018-15,
“<i>Intangibles </i>— <i>Goodwill and Other </i>— <i>Internal-Use Software (Subtopic 350-40): Customer’s
Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.”</i> The ASU requires
a customer in a cloud computing arrangement that is a service contract to follow the internal-use software guidance in Accounting
Standards Codification 350-40 to determine which implementation costs to defer and recognize as an asset. This ASU is effective
for fiscal years beginning after December 15, 2019, with early adoption permitted. The ASU permits two methods of adoption: prospectively
to all implementation costs incurred after the date of adoption, or retrospectively to each prior reporting period presented.
The Company adopted this guidance on a prospective basis effective May 1, 2020. The adoption of the guidance did not have a material
effect on its Consolidated Financial Statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The table below shows the percentage of the
Company’s revenues derived from customers whose revenues accounted for at least 10% of the Company’s consolidated revenues
for at least one of the periods indicated:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Eni S.p.A.</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">17</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">14</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Premier Oil UK Limited</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">16</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">47</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">EGP</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">67</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">U.S. Navy</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">26</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">0</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">%</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">13</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">100</font></td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">%</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">100</font></td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">%</font></td></tr>
</table>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Checking and savings accounts</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">2,002</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">1,551</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Money market account</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">9,063</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">8,451</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">11,065</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">10,002</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The carrying value of such receivables represent
their estimated realizable value. Accounts receivable consisted of the following at July 31, 2020 and April 30, 2020.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Opening balance</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">105</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">63</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Amount invoiced to customers</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">21</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">1,386</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Collections</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(105</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(1,344</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Ending balance</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">21</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">105</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Other current assets consist of the following
at July 31, 2020 and April 30, 2020:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Deposits</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">9</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">60</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Other receivables</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">2</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">2</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Prepaid insurance</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">143</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">124</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Prepaid offering costs</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">81</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">275</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Prepaid expenses- other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">212</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">127</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">447</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">588</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The components of property and equipment, net
as of July 31, 2020 and April 30, 2020 consisted of the following:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 27.5pt"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Equipment</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">342</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">342</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Computer equipment & software</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">486</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">486</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Office furniture & equipment</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">339</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">339</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Leasehold improvements</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">474</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">474</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Construction in process</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">15</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">15</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">1,656</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">1,656</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Less: accumulated depreciation</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(1,194</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(1,157</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">462</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">499</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Information related to the Company’s
right-of use assets and lease liabilities as of July 31, 2020 was as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 2pt; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt"><u>Operating lease:</u></font></td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="width: 77%"><font style="font-size: 10pt">Operating right-of-use asset, net</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 20%; text-align: right"><font style="font-size: 10pt">1,113</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-left: 10pt"><font style="font-size: 10pt">Right-of-use liability- current</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">236</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt; padding-left: 10pt"><font style="font-size: 10pt">Right-of-use liability- long term</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">1,017</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total lease liability</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,253</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Weighted average remaining lease term- operating leases</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">4.23 years</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Weighted average discount rate- operating leases</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">8.5</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Total remaining lease payments under the Company’s
operating leases are as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 77%"><font style="font-size: 10pt">Remainder of fiscal year 2021</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 20%; text-align: right"><font style="font-size: 10pt">250</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">2022</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">341</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">2023</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">352</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">2024</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">362</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">2025</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">184</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Total future minimum lease payments</font></td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">1,489</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Less imputed interest</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(236</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,253</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Accrued expenses consist of the following at
July 31, 2020 and April 30, 2020:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Project costs</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">23</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">48</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Contract loss reserve</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">209</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">216</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Employee incentive payments</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">277</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Accrued salary and benefits</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">532</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">483</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Legal and accounting fees</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">280</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">283</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Accrued taxes payable</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">331</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">177</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">131</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">146</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,783</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">1,353</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify">A summary of stock options under
our stock incentive plans is detailed in the following table.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: center"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Weighted</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Average</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Weighted</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Remaining</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Shares</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Average</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Contractual</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Underlying</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Exercise</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Term</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Options</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Price</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>(In Years)</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 43%"><font style="font-size: 10pt">Outstanding as of April 30, 2020</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">555,475</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">3.19</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">9.5</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Granted</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Exercised</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Cancelled/forfeited</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">(34</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">)</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 1.5pt; text-align: right"><font style="font-size: 10pt">1,086.00</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt; text-align: right"> </td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Outstanding as of July 31, 2020</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">555,441</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">3.13</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">9.3</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Exercisable as of July 31, 2020</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">62,441</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">19.51</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">7.6</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">A summary of non-vested restricted stock under
our stock incentive plans is as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Weighted</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Number</b></font></td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"><font style="font-size: 10pt"><b>Average Price per</b></font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>of Shares</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Share</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 58%; text-align: justify"><font style="font-size: 10pt">Issued and unvested at April 30, 2020</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">13,513</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 20%; text-align: right"><font style="font-size: 10pt">1.48</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="text-align: justify"><font style="font-size: 10pt">Granted</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="text-align: justify"><font style="font-size: 10pt">Vested</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td>
<td> </td>
<td><font style="font-size: 10pt">$</font></td>
<td style="text-align: right"><font style="font-size: 10pt">-</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt; text-align: justify"><font style="font-size: 10pt">Cancelled/forfeited</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">-</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 1.5pt; text-align: right"><font style="font-size: 10pt">-</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt; text-align: justify"><font style="font-size: 10pt">Issued and unvested at July 31, 2020</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">13,513</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">$</font></td>
<td style="padding-bottom: 2.5pt; text-align: right"><font style="font-size: 10pt">1.48</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
-18000
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(17) Operating Segments and Geographic Information</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company’s business consists of one
segment as this represents management’s view of the Company’s operations. The Company operates on a worldwide basis
with one operating company in the US and subsidiaries in the UK and in Australia. Revenues and expenses are generally attributed
to the operating unit that bills the customers. During each of the three months ended July 31, 2020 and 2019, the Company’s
primary business operations were in North America.</p>
The Company received a notification from the Nasdaq Stock Market (the "Nasdaq") indicating that the minimum bid price of the Company's common stock has been below $1.00 per share for 30 consecutive business days and as a result, the Company is not in compliance with the minimum bid price requirement for continued listing. The Nasdaq notice has no immediate effect on the listing or trading of the Company's common stock. Under the Nasdaq Listing Rules, the Company has a grace period of 180 calendar days, or until August 31, 2020, in which to regain compliance with the minimum bid price rule. To regain compliance, the closing bid price of the Company's common stock must meet or exceed $1.00 per share for a minimum of ten consecutive business days during this grace period. On April 20, 2020, the Company received a written notice from Nasdaq indicating that, as a result of the tolling of the bid price requirements due to COVID-19, the period within which the Company has to regain compliance was extended from August 31, 2020 to November 13, 2020.
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"><b>(1) Background, Basis of Presentation
and Liquidity</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt"> </p>
<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="font: 12pt Times New Roman, Times, Serif; width: 48px; text-align: justify"><font style="font-size: 10pt"><b><i>a)</i></b></font></td>
<td style="font: 12pt Times New Roman, Times, Serif; text-align: justify"><font style="font-size: 10pt"><b><i>Background</i></b></font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Ocean Power Technologies, Inc. (the “Company”,
“we”, “us”, “our”) was founded in 1984 in New Jersey, commenced business operations in 1994
and re-incorporated in Delaware in 2007. We believe that we are a marine power solutions provider. We control the design, manufacture,
sales, installation, operations and maintenance of our products while working closely with partners that provide payloads, integration
services, and marine installation capabilities. We believe our solutions provide distributed offshore power which is persistent
and reliable power along with communications for remote surface and subsea applications. Our mission and purpose is to utilize
our proprietary, state-of-the-art technologies to reduce the global carbon footprint by providing renewable energy solutions for
reliable electrical power and, in so doing, drive demand for our products and services. Before 2015, government agencies had accounted
for a significant portion of the Company’s revenues. These revenues were largely for the support of product development efforts
relating to our technology. Today our goal is to generate the majority of our revenue from the commercialization of products and
solutions, and sales of services to support our business operations. As we continue to develop and commercialize our products and
services, we expect to have a net decrease in cash due to the use of cash from operating activities until we can achieve positive
cash flow from the commercialization of solutions, products and services.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt"> </p>
<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="font: 12pt Times New Roman, Times, Serif; width: 48px; text-align: justify"><font style="font-size: 10pt"><b><i>b)</i></b></font></td>
<td style="font: 12pt Times New Roman, Times, Serif; text-align: justify"><font style="font-size: 10pt"><b><i>Basis of Presentation</i></b></font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The accompanying unaudited consolidated financial
statements have been prepared in accordance with generally accepted accounting principles (“GAAP”) for interim financial
information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not 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 not 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 10-K for the year ended April 30, 2020 filed with the Securities and Exchange Commission (“SEC”), and
elsewhere in this Form 10-Q.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt"> </p>
<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
<td style="font: 12pt Times New Roman, Times, Serif; width: 48px; text-align: justify"><font style="font-size: 10pt"><b><i>c)</i></b></font></td>
<td style="font: 12pt Times New Roman, Times, Serif; text-align: justify"><font style="font-size: 10pt"><b><i>Liquidity/Going Concern</i></b></font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Our 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 $223.5 million as of July 31, 2020. As of July 31, 2020, the
Company had approximately $12.0 million in cash, cash equivalents, and restricted cash on hand. The Company generated revenues
of $0.2 million and $0.2 million during the three months ended July 31, 2020 and 2019, respectively. Based on the Company’s
cash, cash equivalents and restricted cash balances as of July 31, 2020, the Company believes that it will be able to finance its
capital requirements and operations into the quarter ending July 31, 2021. Among other things, the Company is currently evaluating
a variety of different financing alternatives and we expect to continue to fund our business with sales of our securities and through
generating revenue with customers. The Company will require additional equity and/or debt financing to continue its operations
into fiscal year 2022. 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’s
ability to continue as a going concern.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 not 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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Management is evaluating different strategies
to obtain the required additional funding for future operations. These strategies may include, but are not limited to, continued
pursuit of business opportunities, additional funding from current and /or new investors, officers and directors; borrowings of
debt; or a public offering of the Company’s equity or debt securities. There can be no assurance that any of these future-funding
efforts will be successful.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In fiscal 2020 and during the three months
ended July 31, 2020, the Company has continued to make investments in ongoing product development efforts in anticipation of future
growth. The Company’s future results of operations involve significant risks and uncertainties. Factors that could affect
the Company’s future operating results and cause actual results to vary materially from expectations include, but are not
limited to, risks from lack of available financing and insufficient capital, performance of products, its inability to market and
commercialize its products and new products that it may develop, 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
currently has committed sources of equity financing through its At the Market Offering Agreement with A.G.P/Alliance Global Partners
(“AGP”) and its equity line with Aspire Capital (discussed further below), but the Company cannot be sure 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 not obtained when
needed, the Company may 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 may 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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On January 7, 2019, the Company entered into
an At the Market Offering Agreement (“2019 ATM Facility”) with AGP, under which the Company may issue and sell to or
through AGP, acting as agent and/or principal, shares of the Company’s common stock having an aggregate offering price of
up to $25 million. Through July 31, 2020, under the 2019 ATM Facility, the Company sold and issued an aggregate of 5,913,362 shares
of its common stock with an aggregate market value of $5.0 million at an average price of $0.85 per share and paid AGP a sales
commission of approximately $162,448 related to those shares.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On April 8, 2019, the Company sold 1,542,000
shares of common stock, which includes the sale of 642,000 shares of the Company’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. As part of the public offering,
the Company also sold prefunded warrants to purchase up to 3,385,680 shares of common stock and common warrants to purchase up
to 4,927,680 shares of our common stock. The net proceeds to the Company from the offering were approximately $15.7 million, after
deducting underwriter fees and offering expenses payable by the Company.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On October 24, 2019, the Company entered into
a new common stock purchase agreement with Aspire Capital which provided that, subject to certain terms, conditions and limitations,
Aspire Capital is committed to purchase up to an aggregate of $10.0 million of shares of the Company’s common stock over
a 30-month period that does not exceed 19.99% of the outstanding common stock on the date of the agreement. The number of shares
the Company could issue within the 19.99% limit was 1,219,010 shares including shares issued as a commitment fee. In consideration
for entering into the agreement, the Company issued to Aspire Capital 194,805 shares of our common stock as a commitment fee. Shareholder
approval was needed for sale of common stock over the 19.99% limit of the outstanding common stock on the date of the agreement.
At the 2019 annual meeting of stockholders, held on December 20, 2019, the Company’s stockholders approved an additional
5,400,000 shares to be issued pursuant to the common stock purchase agreement. Through July 31, 2020, the Company has sold an aggregate
of 6,424,205 shares of common stock with an aggregate market value of $4.0 million at an average price of $0.63 per share pursuant
to this common stock purchase agreement.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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’s common stock and could contain covenants that
would restrict its operations. Financing may not be available in amounts or on terms acceptable to the Company, or at all. If the
Company is unable to obtain required financing, it may 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 may be forced to cease operations.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><font style="background-color: white">If
our common stock is delisted from Nasdaq, our ability to raise capital through public offerings of our securities and to finance
our operations could be adversely affected. See additional risk factors under “Part II, Item 1A – Risk Factors”.
We also believe that delisting would likely result in decreased liquidity and/or increased volatility in our common stock and
could harm our business and future prospects. In addition, we believe that, if our common stock is delisted, our stockholders
would likely find it more difficult to obtain accurate quotations as to the price of the common stock and it may be more difficult
for stockholders to buy or sell our common stock at competitive market prices, or at all.</font></p>
396000
494000
890000
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(9) Paycheck Protection Program Loan</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">As a result of the COVID-19 pandemic, on March
27, 2020, the U.S. Government passed into law the Coronavirus Aid, Relief and Economic Security Act, or the (“CARES Act”)
which included the ability to secure loans under the Paycheck Protection Program (“PPP”). On May 3, 2020, after its
application was submitted and approved, the Company signed a PPP loan with Santander Bank, N.A. (“Santander”) as the
lender for $890,347 pursuant to the PPP under the CARES Act, as implemented by the U.S. Small Business Association (“SBA”).
The PPP loan is an unsecured note with Santander as the lender and governed by a loan agreement with Santander. The interest rate
is 1% and the loan is repayable over two years. The loan contains customary events of defaults relating to, among other things,
payment defaults or breaches of the terms of the loan. Upon the occurrence of an event of default, the lender may require immediate
repayment of all outstanding under the loan. Interest and principal payments are deferred for the first 6 months from the date
of the loan. Principal and interest of approximately $49,000 are payable monthly commencing 6 months after the disbursement date
and may be repaid by the Company at any time prior to maturity with no prepayment penalties. The Company received the proceeds
on May 5, 2020.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The SBA allows loan forgiveness for eligible
costs incurred and paid which include (a) payroll costs, (b) interest on any real or personal property mortgage prior to February
15, 2020, (c) rent on any lease in force prior to February 15, 2020, and (d) utility payments for which service began before February
15, 2020. As of July 31, 2020, the Company has utilized all of the loan proceeds. While the Company currently believes that the
use of the loan proceeds will meet the conditions for forgiveness of the loan and is in the process of preparing the SBA’s
forgiveness application, no assurance can be provided that the Company will obtain forgiveness of the loan, in whole or in part.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On June 5, 2020, the Paycheck Protection Program
Flexibility Act (“PPPFA”) was signed into law. Among other changes, the PPPFA (a) reduced the amount of the loan required
to be spent on payroll costs from 75% to 60%, (b) extended the covered period to 24 weeks from 8 weeks, (c) extended the repayment
term of the PPP loan from 2 years to 5 years, and (d) increased the deferred payment date from 6 months to 10 months. For the loans
disbursed before June 5, 2020, the PPPFA provides the option to opt for 24 weeks for spending the loan instead of 8 weeks. The
Company opted for 24 weeks to spend the loan.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company is accruing interest expense until
the loan is forgiven or repaid. If the loan were not forgiven by the SBA and the Company decided to repay the loan over 2 years,
the interest expense for this period would be approximately $7,000.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
79000
79000
2000
81000
79000
250000
341000
890347
49000
Payroll Protection Flexibility Act ("PPPFA") was signed into law. Among other changes, the PPPFA (a) reduced the amount of the loan required to be spent on payroll costs from 75% to 60%, (b) extended the covered period to 24 weeks from 8 weeks, (c) extended the repayment term of the PPP loan from 2 years to 5 years, and (d) increased the deferred payment date from 6 months to 10 months. For the loans disbursed before June 5, 2020, the PPPFA provides the option to opt for 24 weeks for spending the loan instead of 8 weeks. The Company opted for 24 weeks to spend the loan.
7000
0.01
200000
200000
15700000
25000000
1542000
642000
5913362
6424205
5000000
4000000
0.85
0.63
4927680
3385680
10000000
0.1999
0.1999
1219010
194805
5400000
162448
236000
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(15) Commitments and Contingencies</b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Employment Litigation </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On June 10, 2014, the Company announced that
it had terminated Charles Dunleavy as its Chief Executive Officer and as an employee of the Company for cause, effective June 9,
2014, and that Mr. Dunleavy had also been removed from his position as Chairman of the Board of Directors. On June 17, 2014, 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 July 28, 2014, Mr. Dunleavy resigned from the Board and the boards of directors of the Company’s subsidiaries.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white">On August 28, 2018,
counsel for Mr. Dunleavy filed a demand for arbitration, captioned <i>Charles F. Dunleavy v. Ocean Power Technologies, Inc.,</i>
Case No. 01-18-0003-2374, before the American Arbitration Association in New Jersey. The demand names Ocean Power Technologies,
Inc. as the respondent and alleges various claims and seeks declaratory relief and permanent injunction. The demand seeks damages
in the amount of $5 million for compensatory and punitive damages, plus interest and attorneys’ fees as well as certain equitable
relief. On November 8, 2018, the Company through counsel responded to the demand for arbitration, denied all allegations, and asserted
various affirmative defenses. On April 5, 2019, a three-person arbitration panel scheduled the discovery process to run from April
12, 2019 until November 9, 2019, set a pre-hearing case management conference for October 14, 2019, and set the hearing for December
9-13, 2019 in Princeton, New Jersey. On September 30, 2019, the parties completed the factual discovery process and the Company
identified its expert witnesses. On October 14, 2019, the parties participated in a pre-hearing case management conference with
arbitration panel and altered slightly the dates for the hearing. The hearing was conducted in Princeton, New Jersey between December
9-11, 2019, and between December 16-18, 2019, and on December 18, 2019 the panel decided to continue the hearing for at least another
day. The final day of hearing occurred in Princeton, New Jersey on July 15, 2020. Post-hearing briefs are scheduled to be filed
on September 22, 2020, after which the arbitration panel will make its decision although there is no schedule for their decision.
As of July 31, 2020, the Company has not accrued any provision related to this matter since it is not probable and cannot reasonably
estimate the loss contingency.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Nasdaq Delisting Notification</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On March 3, 2020, the Company received a notification
from the Nasdaq Stock Market (the “Nasdaq”) indicating that the minimum bid price of the Company’s common stock
has been below $1.00 per share for 30 consecutive business days and as a result, the Company is not in compliance with the minimum
bid price requirement for continued listing. The Nasdaq notice has no immediate effect on the listing or trading of the Company’s
common stock. Under the Nasdaq Listing Rules, the Company has a grace period of 180 calendar days, or until August 31, 2020, in
which to regain compliance with the minimum bid price rule. To regain compliance, the closing bid price of the Company’s
common stock must meet or exceed $1.00 per share for a minimum of ten consecutive business days during this grace period. On April
20, 2020, the Company received a written notice from Nasdaq indicating that, as a result of the tolling of the bid price requirements
due to COVID-19, the period within which the Company has to regain compliance was extended from August 31, 2020 to November 13,
2020. On August 21, 2020, the Company received notification from Nasdaq that, as a result of the closing bid price of the Company’s
common stock being over $1.00 for 10 consecutive trading days, the Company has regained compliance with Listing Rule 5550(a)(2)
to maintain the listing of its common stock on Nasdaq and Nasdaq considers the matter closed.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i> </i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Spain Income Tax Audit</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company underwent an income tax audit in
Spain for the period from 2011 to 2014, when our Spanish branch was closed. In connection with the tax audit, the Spanish tax inspector
challenged the Company’s recognition of grant funds received in 2011 to 2014 from the European Commission in connection with
the Company’s Waveport project. On July 30, 2018, the inspector concluded that although there was no tax owed in light of
losses reported, the Company’s Spanish branch owed penalties for failure to properly account for the income associated with
the funding grant. On August 30, 2018, the Company filed an administrative appeal of the penalty and its underlying conclusions.
During the three months ended July 31, 2020, the Company received notice from the Spanish Central Economic and Administrative Tribunal
that it agreed with the inspector and ruled that the Company owes the full amount of the penalty in the amount of €279,869.81.
The Company is appealing the decision of the Tribunal tax assessment to the National High Court. Per the Company’s accounting
policy, the Company recorded the additional penalty of $154,000 to Selling, general and administrative costs in the Statement of
Operations. As of July 31, 2020 and April 30, 2020, the Company has reserved $331,000 and $177,000, respectively, for the penalty
in Accrued expenses in the Consolidated Balance Sheets.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white">The following table
summarizes share-based compensation related to the Company’s share-based plans by expense category for the three months ended
July 31, 2020 and 2019:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Engineering and product development</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">37</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">20</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Selling, general and administrative</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">72</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total share-based compensation expense</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">116</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">92</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The operating lease straight-line expense in
the Consolidated Statement of Operations for both the three months ended July 31, 2020 and 2019 was as follows:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 2.15pt; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Operating lease cost</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Short-term lease cost</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">2</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">-</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total lease cost</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">81</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company determined the fair value using
the Black-Scholes option pricing model with the following assumptions:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.55in"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td>
<td> </td>
<td colspan="2" style="text-align: center"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Dividend rate</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">0.0</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">0.0</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Risk-free rate</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0.1</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">1.9</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">Expected life (years)</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">1.0 - 1.4</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">2.0 - 2.4</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Expected volatility</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">101.8</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">111.3</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
</table>
15677331
6040466
493000
0
0
P9Y6M0D
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(a) Consolidation</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(b) Use of Estimates</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt 0 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white">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 estimated costs to complete projects; and percentage of completion of customer contracts for purposes
of revenue recognition. Actual results could differ from those estimates.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(c) Cash, Cash Equivalents, Restricted
Cash and Security Agreements</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Cash and Cash Equivalents</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company considers all highly liquid investments
with a maturity of three months or less when purchased to be cash equivalents. The Company invests excess cash in a money market
account.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Checking and savings accounts</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">2,002</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">1,551</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Money market account</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">9,063</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">8,451</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">11,065</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">10,002</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><b> </b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>Restricted Cash and Security Agreements</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has two agreements with Santander
Bank. Cash is on deposit at Santander Bank and serves as security for a letter of credit issued by Santander Bank for the lease
of warehouse/office space in Monroe Township, New Jersey. This agreement cannot be extended beyond July 31, 2025 and is cancelable
at the discretion of the bank. Santander Bank also issued two letters of credit to subsidiaries of Enel Green Power (“EGP”)
pursuant to the Company’s contracts with EGP. The first letter of credit was issued in the amount of $125,690 that expires
in February 2021. The second letter of credit was issued in the amount of $645,467. This second letter of credit will be reduced
to $322,734 in August 2020 and to $64,547 in September 2020. The remaining amount expires in October 2021.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Restricted cash includes the following:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%; padding-bottom: 1.5pt"><font style="font-size: 10pt">Santander Bank</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid; width: 1%"> </td>
<td style="border-bottom: black 1.5pt solid; width: 16%; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid; width: 1%"> </td>
<td style="border-bottom: black 1.5pt solid; width: 16%; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="width: 1%; padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">928</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The following table provides a reconciliation
of cash, cash equivalents and restricted cash reported within the Statement of Financial Position that sum to the total of the
same such amounts shown in the Statement of Cash Flows.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>July 31, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>April 30, 2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Cash and cash equivalents</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">11,065</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">10,002</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Restricted cash- short term</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">707</font></td>
<td> </td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">707</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Restricted cash- long term</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">221</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">221</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">11,993</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">10,930</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(d) Concentration of Credit Risk</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Financial instruments that potentially subject
the Company to credit risk consist principally of accounts receivable and cash and cash equivalents. The Company believes that
its credit risk is limited because the Company’s current contracts are with companies with strong financial strength. The
Company invests its excess cash in a money market account and does not believe that it is exposed to any significant risks related
to its cash and money market accounts. Cash and cash equivalents are also maintained at foreign financial institutions. Cash and
cash equivalents in foreign financial institutions as of July 31, 2020 was $0.3 million.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The table below shows the percentage of the
Company’s revenues derived from customers whose revenues accounted for at least 10% of the Company’s consolidated revenues
for at least one of the periods indicated:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 42.9pt"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Eni S.p.A.</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">17</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">14</font></td>
<td style="width: 1%"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">Premier Oil UK Limited</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">16</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">47</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td><font style="font-size: 10pt">EGP</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">67</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td><font style="font-size: 10pt">U.S. Navy</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">0</font></td>
<td><font style="font-size: 10pt">%</font></td>
<td> </td>
<td> </td>
<td style="text-align: right"><font style="font-size: 10pt">26</font></td>
<td><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Other</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">0</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">%</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">13</font></td>
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">%</font></td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">100</font></td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">%</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"> </td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">100</font></td>
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">%</font></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 not require its customers to maintain collateral.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(e) Share-Based Compensation</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white">Costs resulting from
all share-based payment transactions are recognized in the consolidated financial statements at their fair values. The following
table summarizes share-based compensation related to the Company’s share-based plans by expense category for the three months
ended July 31, 2020 and 2019:</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"> </p>
<table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="6" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>Three months ended July 31,</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2020</b></font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td colspan="2" style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt"><b>2019</b></font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="6" style="text-align: center"><font style="font-size: 10pt">(in thousands)</font></td>
<td> </td></tr>
<tr style="vertical-align: bottom">
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td>
<td> </td>
<td colspan="2"> </td>
<td> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="width: 62%"><font style="font-size: 10pt">Engineering and product development</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">37</font></td>
<td style="width: 1%"> </td>
<td style="width: 1%"> </td>
<td style="width: 1%"><font style="font-size: 10pt">$</font></td>
<td style="width: 16%; text-align: right"><font style="font-size: 10pt">20</font></td>
<td style="width: 1%"> </td></tr>
<tr style="vertical-align: bottom; background-color: white">
<td style="padding-bottom: 1.5pt"><font style="font-size: 10pt">Selling, general and administrative</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">79</font></td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="padding-bottom: 1.5pt"> </td>
<td style="border-bottom: black 1.5pt solid"> </td>
<td style="border-bottom: black 1.5pt solid; text-align: right"><font style="font-size: 10pt">72</font></td>
<td style="padding-bottom: 1.5pt"> </td></tr>
<tr style="vertical-align: bottom; background-color: #CCEEFF">
<td style="padding-bottom: 2.5pt"><font style="font-size: 10pt">Total share-based compensation expense</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">116</font></td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="padding-bottom: 2.5pt"> </td>
<td style="border-bottom: black 2.25pt double"><font style="font-size: 10pt">$</font></td>
<td style="border-bottom: black 2.25pt double; text-align: right"><font style="font-size: 10pt">92</font></td>
<td style="padding-bottom: 2.5pt"> </td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b>(f) <i>Revenue Recognition</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">A performance obligation is the unit of account
for revenue recognition. The Company assesses the goods or services promised in a contract with a customer and identifies as a
performance obligation either: a) a good or service (or a bundle of goods or services) that is distinct; or b) a series of distinct
goods or services that are substantially the same and that have the same pattern of transfer to the customer. A contract may contain
a single or multiple performance obligations. For contracts with multiple performance obligations, the Company allocates the contracted
transaction price to each performance obligation based upon the relative standalone selling price, which represents the price the
Company would sell a promised good or service separately to a customer. The Company determines the standalone selling price based
upon the facts and circumstances of each obligated good or service. The majority of the Company’s contracts have no observable
standalone selling price since the associated products and services are customized to customer specifications. As such, the standalone
selling price generally reflects the Company’s forecast of the total cost to satisfy the performance obligation plus an appropriate
profit margin.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The nature of the Company’s contracts
may give rise to several types of variable consideration, including unpriced change orders and liquidated damages and penalties.
Variable consideration can also arise from modifications to the scope of services. Variable consideration is included in the transaction
price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur once the uncertainty
associated with the variable consideration is resolved. Our estimates of variable consideration and determination of whether to
include such amounts in the transaction price are based largely on our assessment of legal enforceability, performance and any
other information (historical, current, and forecasted) that is reasonably available to us. Accounting Standards Update (“ASU”)
2016-10 provides a practical expedient that permits presentation of shipping and handling costs, that occur after control of the
promised goods or services transfer to the customer, as fulfillment costs rather than evaluating whether the shipping and handling
activities are promised services to the customer. The Company adopted this practical expedient, but it did not have a material
effect on its Consolidated Financial Statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company recognizes revenue when or as it
satisfies a performance obligation by transferring a good or service to a customer, either (1) at a point in time or (2) over time.
A good or service is transferred when or as the customer obtains control of it. The evaluation of whether control of each performance
obligation is transferred at a point in time or over time is made at contract inception. Input measures such as costs incurred
or time elapsed are utilized to assess progress against specific contractual performance obligations for the Company’s services.
The selection of the method to measure progress towards completion requires judgment and is based on the nature of the services
to be provided. For the Company, the input method using costs incurred or time elapsed best represents the measure of progress
against the performance obligations incorporated within the contractual agreements. When the Company’s estimate of total
costs to be incurred to satisfy the performance obligations exceed revenue, the Company recognizes the loss immediately.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company’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.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company has two 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’s share of the costs is recorded as product
development expense. The Company reports its disaggregation of revenue by contract type since this method best represents the Company’s
business. For the three-month period ended July 31, 2020 and 2019, all of the Company’s contracts were classified as firm
fixed price.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">As of July 31, 2020, the Company’s total
remaining performance obligations, also referred to as backlog, totaled $0.8 million. The Company expects to recognize approximately
73%, or $0.6 million, of the remaining performance obligations as revenue over the next twelve months.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i>PB3 PowerBuoy® Leasing</i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><i> </i></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company enters into lease arrangements
with certain customers for their PB3 PowerBuoy® (“PB3”). As of July 31, 2020, the Company has one lease arrangement
with a remaining lease term of less than 16 months. Revenue related to multiple-element arrangements is allocated to lease and
non-lease elements based on their relative standalone selling prices or expected cost plus a margin approach. Lease elements generally
include a PB3 and components, while non-lease elements generally include engineering, monitoring and support services. In the lease
arrangement, the customer is provided an option to extend the lease term or purchase the leased PB3 at some point during and/or
at the end of the lease term.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 5.15pt 0 2pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company classifies leases as either operating
or financing in accordance with the authoritative accounting guidance contained within ASC Topic 842, <i>“Leases”.</i>
At inception of the contract, the Company evaluates the lease against the lease classification criteria within ASC Topic 842. If
the direct financing or sales-type classification criteria are met, then the lease is accounted for as a finance lease. All others
are treated as an operating lease.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The Company recognizes revenue from operating
lease arrangements generally on a straight-line basis over the lease term and is presented in Revenues in the Consolidated Statement
of Operations. The lease income for the three months ended July 31, 2020 and 2019 was immaterial.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(g) Net Loss per Common Share</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">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 and common stock equivalents
outstanding during the period. The pre-funded warrants were determined to be common stock equivalents and have been included in
the weighted average number of shares outstanding for calculation of the basic earnings per share number. Due to the Company’s
net losses, potentially dilutive securities, consisting of options to purchase shares of common stock, warrants on common stock
and non-vested restricted stock issued to employees and non-employee directors, were excluded from the diluted loss per share calculation
due to their anti-dilutive effect.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 7.7pt; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In computing diluted net loss per share on
the Consolidated Statement of Operations, warrants on common stock, options to purchase shares of common stock and non-vested
restricted stock issued to employees and non-employee directors, totaling 5,564,404 and 5,008,145 for the three months ended July
31, 2020 and 2019, respectively, were excluded from each of the computations as the effect would be anti-dilutive due to the Company’s
losses.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><b><i>(h) Recently Issued Accounting Standards</i></b></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 12.95pt 0 0; text-align: justify">In June 2016, the FASB issued ASU
No. 2016-13, “<i>Financial Instruments </i>- <i>Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments.”
</i>The amendment in this update replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects
expected credit losses on instruments within its scope, including trade receivables. This update is intended to provide financial
statement users with more decision-useful information about the expected credit losses. This ASU is effective for public entities,
excluding entities eligible to be Smaller Reporting Companies for annual periods and interim periods beginning after December 15,
2019. In November 2019, the FASB issued No. 2019-10, <i>Financial Instruments—Credit Losses (Topic 326), Derivatives and
Hedging (Topic 815), and Leases (Topic 842)</i>, which deferred the effective date of ASU 2016-13 for Smaller Reporting Companies
for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, assuming the Company remains
a Smaller Reporting Company.The Company is currently evaluating the impact the adoption of ASU 2016-13 will have on its consolidated
financial statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In August 2018, the FASB issued ASU No. 2018-13,
<i>“Fair Value Measurement (Topic 820).” </i>The ASU modifies, removes, and adds several disclosure requirements on
fair value measurements in Topic 820, Fair Value Measurement. ASU 2018-13 is effective for all entities for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses,
the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative
description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented
in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their
effective date. Early adoption is permitted upon issuance of ASU 2018-13. An entity is permitted to early adopt any removed or
modified disclosures upon issuance of ASU 2018-13 and delay adoption of the additional disclosures until their effective date.
The Company adopted this guidance effective May 1, 2020. The adoption of the guidance did not have a material effect on its Consolidated
Financial Statements.</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"> </p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">In August 2018, the FASB issued ASU No. 2018-15,
“<i>Intangibles </i>— <i>Goodwill and Other </i>— <i>Internal-Use Software (Subtopic 350-40): Customer’s
Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.”</i> The ASU requires
a customer in a cloud computing arrangement that is a service contract to follow the internal-use software guidance in Accounting
Standards Codification 350-40 to determine which implementation costs to defer and recognize as an asset. This ASU is effective
for fiscal years beginning after December 15, 2019, with early adoption permitted. The ASU permits two methods of adoption: prospectively
to all implementation costs incurred after the date of adoption, or retrospectively to each prior reporting period presented.
The Company adopted this guidance on a prospective basis effective May 1, 2020. The adoption of the guidance did not have a material
effect on its Consolidated Financial Statements.</p>