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(1) Background and Going Concern Uncertainty (a) Background Ocean Power Technologies, Inc. (the “Company”) was founded in 1984 in New Jersey, commenced business operations in 1994 and re-incorporated in Delaware in 2007. The Company provides ocean data collection and reporting, marine power, offshore communications and Domain Awareness Systems (“MDA” or “MDAS”) products, integrated solutions, and consulting services. The Company’s solutions focus on three major service areas: Data as a Service (“DaaS”), which includes data collected by Wave Adaptive Modular Vessel (WAM-V®) autonomous vehicles or PowerBuoy® product lines; Robotics as a Service (“RaaS”), which provides a lower cost subscription model for customers to access use of WAM-V’s®; and Power as a Service (“PaaS”), which includes PowerBuoy® products. The Company offers products and services to a wide-range of customers, including those in government and offshore energy, oil and gas, construction, wind power and other industries. The Company is involved in the entire life cycle of product development, from product design through assembly, testing, deployment, maintenance and upgrades, while working closely with partners across the supply chain. The Company’s solutions are based on technologies that enable autonomous, zero or low carbon emitting, and cost effective data collection, analysis, transportation, cooperation with other assets such as aerial drones, and communication. The Company’s solutions are primarily suited to ocean and other offshore environments, and support generation of actionable intelligence on a standalone basis or working with other data sources. The Company then channels the information it collects, and other communications, through control equipment linked to edge computing and cloud hosting environments. The Company’s goal is to generate most revenue from the sale or lease of products and solutions. The Company expects to continue having net cash outflows until it can generate positive cash flow from the commercialization of products. (b) Going Concern Uncertainty For the fiscal year ended April 30, 2024, and the fiscal year ended April 30, 2023, the Company incurred net losses of approximately $27.5 million and $26.3 million, respectively, and used cash in operating activities of approximately $29.8 million and $21.7 million, respectively. In addition, the Company has continued to make investments towards building inventory, supporting order backlog and future growth. The Company has incurred expenses of approximately $3.9million for the fiscal year ended April 30, 2024, related to litigation with Paragon Technologies, Inc. (see Note 15) and preparation for its 2023 Annual Meeting of Stockholders which took place on February 28, 2024. These expenses are a direct result of the Paragon litigation and were not incurred in the prior year. These expenses could continue into the fiscal year 2025 as this litigation continues. The Company’s future results of operations involve significant risks and uncertainties. Factors that could affect the Company’s future operating results and could cause actual results to vary materially from expectations include, but are not limited to, performance of its products, its ability to market and commercialize its products and new products that it may develop, access to capital, technology development, scalability of technology and production, ability to attract and retain key personnel, concentration of customers and suppliers, pending or threatened litigation (including recent litigation noted above), and deployment risks and integration of acquisitions. On March 21, 2024, the Company entered into an At-the-Market Offering Agreement with AGP with an aggregate offering price of up to $7,000,000 (the “2023 ATM Facility”). As of April 30, 2024, the Company had received proceeds of approximately $<span id="xdx_906_eus-gaap--ProceedsFromIssuanceOrSaleOfEquity_pn5n6_c20230501__20240430__us-gaap--TypeOfArrangementAxis__custom--TwoThousandTwentyThreeATMFacilityMember_zdwWrxAC7Sw5" title="Proceeds from issuance">0.5 million under the 2023 ATM Facility. Subsequent to fiscal year end 2024 and through the date of filing management obtained additional capital financing of approximately $<span id="xdx_90E_ecustom--AdditionalCapitalFinancing_pn5n6_c20240501__20240726__us-gaap--TypeOfArrangementAxis__custom--TwoThousandTwentyThreeATMFacilityMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_z6DuArbEoHPb" title="Capital financing">6.2 million under the 2023 ATM Facility. The Company’s current cash balance may not be sufficient to fund its planned expenditures through twelve months from the filing date of the Form 10-K. These conditions raise substantial doubt about the Company’s ability to continue as a going concern. The ability to continue as a going concern is dependent upon the Company’s operations in the future and/or obtaining the necessary financing to meet its obligations and repay its liabilities arising from normal business operations when they become due. The accompanying consolidated financial statements have been prepared on a basis which assumes the Company is a going concern and do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from any uncertainty related to the Company’s ability to continue as a going concern. Such adjustments could be material.

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(2) Summary of Significant Accounting Policies (a) Basis of Consolidation The accompanying consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries, Marine Advanced Robotics Inc. (CA), referred to herein as MAR, 3dent Technologies LLC (3Dent), Oregon Wave Energy Partners I LLC (DE), ReedSport OPT WavePark, LLC (OR) and Ocean Power Technologies Ltd. in the United Kingdom. ReedSport OPT WavePark, LLC (OR) and Oregon Wave Energy Partners I, LLC (DE) were dissolved during the first quarter of fiscal 2024. 3dent was sold in November 2023 and the consolidated financial statements include 3dent’s results of operations through the date of sale. All significant intercompany balances and transactions have been eliminated in consolidation. (b) Use of Estimates The preparation of the consolidated financial statements requires management of the Company to make several estimates and assumptions relating to the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the period. Significant items subject to such estimates and assumptions include, among other items, stock-based compensation based on actual and projected revenues, over time revenue recognition, valuation consideration related to business combinations, including contingent consideration based on actual and projected revenues, including discount rates and present values, and other assumptions and estimates used to evaluate the recoverability of long-lived assets, goodwill and other intangible assets. Actual results could differ from those estimates. (c) Business Combinations The Company accounts for business combinations in accordance with Financial Accounting and Standards Board (“FASB”) Business Combinations (Topic 805). The Company allocates the fair value of consideration transferred in a business combination to the estimated fair value at the acquisition date of the tangible and intangible assets acquired as well as the liabilities assumed. Acquisition costs are expensed as incurred. Any excess consideration transferred is recorded as goodwill and in instances where the fair value of consideration transferred is less than the estimated fair value of tangible and intangible assets acquired less liabilities assumed, such amounts are recorded as a gain on the bargain purchase. (d) Revenue Recognition The Company accounts for revenue in accordance with Accounting Standards Codification 606 (ASC 606) for contracts with customers and Accounting Standards Codification 842 (ASC 842) for leasing arrangements. In relation to ASC 606, which states that 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 as 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 performance obligation 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. When no observable standalone selling price is available, the standalone selling price is generally estimated based upon the Company’s forecast of the total cost to satisfy the performance obligation plus an appropriate profit margin. The nature of the Company’s contracts may give rise to several types of variable consideration, including unpriced change orders, 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. Estimates of variable consideration and determination of whether to include such amounts in the transaction price are based largely on the assessment of legal enforceability, performance, and any other information (historical, current, and forecasted) that is reasonably available to us. There was no variable consideration as of April 30, 2024 or 2023. The Company presents shipping and handling costs, that occur after control of the promised goods or services transfer to the customer, as fulfillment costs in costs of goods sold and regular shipping and handling activities charged to operating expenses. 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. 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 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 or labor hours incurred best represents the measure of progress against the performance obligations incorporated within the contractual agreements. If estimated total costs on any contract project a loss, the Company charges the entire estimated loss to operations in the period the loss becomes known. The cumulative effect of revisions to revenue, estimated costs to complete contracts, including penalties, change orders, claims, anticipated losses, and others are recorded in the accounting period in which the events indicating a loss are known and the loss can be reasonably estimated. These loss projections are reassessed for each subsequent reporting period until the project is complete. Such revisions could occur at any time and the effects may be material. During the fiscal year ended April 30, 2024 the Company recognized approximately $<span id="xdx_90F_eus-gaap--RevenueRemainingPerformanceObligation_iI_pn5n6_c20240430__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredOverTimeMember_z7IkbF9AaK93" title="Revenue related to performance obligations satisfied at a point in time">3.7 million in revenue related to performance obligations satisfied at a point in time and approximately $<span id="xdx_903_eus-gaap--RevenueRemainingPerformanceObligation_iI_pn5n6_c20240430__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredAtPointInTimeMember_zfqKILJ9gRE6" title="Revenue related to performance obligations satisfied over-time">1.9 million in revenue related to performance obligations satisfied over time. The Company’s contracts are either cost-plus contracts, fixed-price contracts, time and material agreements, lease or service agreements. Under cost plus contracts, customers are billed for actual expenses incurred plus an agreed-upon fee. 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, and 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 revenue, resulting in gross profit on these contracts of zero. For the fiscal years ended April 30, 2024 and 2023, the majority of the Company’s contracts were classified as firm fixed-price and the remainder were cost-sharing. The Company’s contract assets and liabilities primarily relate to the timing differences between cash received from a customer in connection with contractual rights to invoicing and the timing of revenue recognition following completion of performance obligations. The Company’s accounts receivable balance is made up entirely of customer contract-related balances. The Company’s revenue also includes revenue from certain contracts which do not fall within the scope of ASC 606, but under the scope of ASC 842. At inception of a contract for those classified under ASC 842, the Company classifies leases as either operating or financing in accordance with the authoritative accounting guidance contained within ASC Topic 842, “Leases”. 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 operating leases. The Company recognizes revenue from operating lease arrangements generally on a straight-line basis over the lease term, or as agreed upon in-use days are utilized, which is presented in Revenue in the Consolidated Statement of Operations. The Company also enters into lease arrangements for its PowerBuoys® and Wave Adaptive Modular Vessels (“WAM-V®”) with certain customers. 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 PowerBuoy®, WAM-V®, and components, while non-lease elements, which the Company expects to become more prevalent, generally include engineering, monitoring and support services. In the lease arrangement, the customer may be provided with an option to extend the lease term or purchase the leased buoy or WAM-V® at some point during and/or at the end of the lease term. As of April 30, 2024, the Company’s remaining performance obligations, also called contracted backlog, totaled $4.9 million. The Company has elected to record taxes collected from customers on a net basis and does not include tax amounts in revenue or costs of revenue. The below table represents the total revenue recognized under ASC 606 and ASC 842 fiscal years ended April 30, 2024 and 2023: Schedule of Revenue Recognizes From Operating Lease Arrangements <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20230501__20240430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__custom--AccountingStandardsUpdate606Member_zbJxGstwnVQ8" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_492_20230501__20240430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__us-gaap--AccountingStandardsUpdate201602Member_zNUiHMkO8X66" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230501__20240430_z2Bm856EDRWj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20220501__20230430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__custom--AccountingStandardsUpdate606Member_zRxTUiGF9yf5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__us-gaap--AccountingStandardsUpdate201602Member_zqCgcXZlozrd" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49B_20220501__20230430_zVUoYcwVGnO" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30, 2024</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30, 2023</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td><td style="border-left: Black 1.5pt solid; text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Product Line:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__custom--WAMVMember_zorzHo2UVHN3" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; width: 22%">WAM-V</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,912</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,392</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">3,304</td><td style="width: 1%; text-align: left"> </td><td style="border-left: Black 1.5pt solid; width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">919</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">667</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,586</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__custom--BuoyMember_zEozBToLMcv6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Buoy</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,739</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,739</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right">269</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">269</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__us-gaap--ServiceMember_zD7b6fvgG8b3" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Services</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">482</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">482</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">877</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">877</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__us-gaap--ProductMember_ze7OL644hHQd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; font-weight: bold">Region:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--NorthAndSouthAmericaMember_zIWR5EZRDS11" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">North and South America</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,101</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,177</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,278</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">1,722</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,389</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__srt--EuropeMember_z3n2D0AZxqe4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Europe</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">32</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">215</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">247</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right">90</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">90</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember_zbcW1g2oNJc6" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Asia and Australia</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">253</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">253</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--RegionMember_zqzKgFP2p8Rf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--RegionMember_zceHDst7RKce" style="display: none; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Revenue</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> </table> (e) Cash and Cash Equivalents, Restricted Cash, Security Agreements and Investments Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less when purchased, to be cash equivalents. The Company invests excess cash in a money market account or in short term investments that are held-to-maturity. The Company had cash and cash equivalents of approximately $3.3 million and $7.1 million as of April 30, 2024 and 2023, respectively. Restricted Cash and Security Agreements The Company has a letter of credit agreement with Santander Bank, N.A. (“Santander”). Cash of $154,000 is on deposit at Santander and serves as security for a letter of credit issued by Santander for the lease of warehouse/office space in Monroe Township, New Jersey. In the prior year Santander also issued one letter of credit to subsidiaries of Enel Green Power (“EGP”) pursuant to the Company’s contracts with EGP. A letter of credit was issued in the amount of $<span id="xdx_90D_eus-gaap--LettersOfCreditOutstandingAmount_iI_c20200831__us-gaap--TypeOfArrangementAxis__custom--RestrictedCashAndSecurityAgreementsMember__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterOneMember_zCYYY8nzRVZe" title="Letters of credit outstanding">645,000 and was reduced to $<span id="xdx_90B_eus-gaap--LettersOfCreditOutstandingAmount_iI_c20200831__us-gaap--AwardDateAxis__custom--AugustTwentyTwentyMember__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterTwoMember_zwDy3EX2Mofi" title="Letters of credit outstanding">323,000 in August 2020. The letter of credit was further reduced by an additional $<span id="xdx_90E_ecustom--LettersOfCreditIssuedAmount_iI_c20230131__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterTwoMember_z3Lu8xblUHha" title="Letters of credit issued amount">258,000 in January of 2023, when the PB3 and its accompanying systems passed final acceptance testing. The remaining restricted amount of $<span id="xdx_908_ecustom--LettersOfCreditIssuedAmount_iI_c20240131__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterTwoMember_zH6OBaCwQ1q4" title="Letters of credit issued amount">65,000 was released in January of 2024. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets that total to the same amounts shown in the Consolidated Statements of Cash Flows. Schedule of Cash and Cash Equivalents and Restricted Cash <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20240430_zHxhW7j67tj7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20230430_zdkwSvmcU9lf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40D_eus-gaap--CashAndCashEquivalentsAtCarryingValue_iI_pn3n3_maCCERCzbyj_zngrRkI0FLW7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Cash and cash equivalents</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">3,151</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">6,883</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--RestrictedCashCurrent_iI_pn3n3_maCCERCzbyj_zHVJ3EwM1Csk" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Restricted cash- short term</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">65</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--RestrictedCashNoncurrent_iI_pn3n3_maCCERCzbyj_zDawTm0FS1r3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Restricted cash- long term</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">154</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">155</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_iTI_pn3n3_mtCCERCzbyj_zxMwJiJEOCNj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Cash, cash equivalents, restricted cash and restricted cash equivalents</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,305</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">7,103</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Short Term Investments As of April 30, 2024 and 2023, their carrying value was approximately zero and $27.8 million, respectively. All short-term investments consist of corporate bonds, government agency bonds, or U.S. Treasury Notes and Bonds, are investment grade rated or better, and mature within 12 months. The Company has the ability and the intention to hold all investments to maturity, and as such are classified as held-to-maturity investments and carried at amortized cost. As of April 30, 2024, as all short term investments have matured. The total accretion of discounts recognized for the years ended April 30, 2024 and 2023 is approximately $290,000 and $122,000, respectively. Additionally, there has been no impairment on these investments. The following table summarizes the Company’s short-term investments as of April 30, 2024 and 2023: Schedule of Investments and Unrealized Gains/Losses <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1.5pt solid; text-align: left; font-weight: bold">Category</td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amortized Cost</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Unrealized Gains (Losses)</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Market Value</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amortized Cost</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Unrealized Gains (Losses)</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Market Value</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td><td style="border-left: Black 1.5pt solid; text-align: center"> </td> <td colspan="10" style="text-align: center"> </td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 22%; text-align: left">Corporate Bonds</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zW5FkFwUaO1g" style="width: 9%; text-align: right" title="Amortized Cost">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zVmkCKKVL5Yi" style="width: 9%; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zy7cQweAi00i" style="width: 9%; text-align: right" title="Market Value">—</td><td style="width: 1%; text-align: left"> </td><td style="border-left: Black 1.5pt solid; width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_z8ewA93dDBle" style="width: 9%; text-align: right" title="Amortized Cost">14,776</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zaLtZ2w0lD3j" style="width: 9%; text-align: right" title="Unrealized Gains (Losses)">100</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zeVFFBG6fOU9" style="width: 9%; text-align: right" title="Market Value">14,876</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Government Bonds & Notes</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z43vfEHL5e1b" style="text-align: right" title="Amortized Cost">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_ziOr3TGgZvuf" style="text-align: right" title="Unrealized Gains (Losses)">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z5WObor1wqF6" style="text-align: right" title="Market Value">—</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z3ZtjmOWrGE4" style="text-align: right" title="Amortized Cost">9,188</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_zkH6OU4mY3F5" style="text-align: right" title="Unrealized Gains (Losses)">33</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_zyUWpvmhlNzk" style="text-align: right" title="Market Value">9,221</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Government Agency</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zJwj9y1d69Hl" style="border-bottom: Black 1.5pt solid; text-align: right" title="Amortized Cost">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_z4xJUOeiE0Nc" style="border-bottom: Black 1.5pt solid; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zqr2XhA4t5Si" style="border-bottom: Black 1.5pt solid; text-align: right" title="Market Value">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_z11RWEUukDv1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Amortized Cost">3,826</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zfcgCNav6FSe" style="border-bottom: Black 1.5pt solid; text-align: right" title="Unrealized Gains (Losses)">25</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zkFm7MEhH8ea" style="border-bottom: Black 1.5pt solid; text-align: right" title="Market Value">3,851</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Total Short Term Investments</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430_z0uWtyWvmIS3" style="border-bottom: Black 2.5pt double; text-align: right" title="Amortized Cost">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430_zV07G5HAFyN5" style="border-bottom: Black 2.5pt double; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430_zo1fFnNISQRk" style="border-bottom: Black 2.5pt double; text-align: right" title="Market Value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430_zgjWQu9V7HZf" style="border-bottom: Black 2.5pt double; text-align: right" title="Amortized Cost">27,790</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_989_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430_zXgZ2YlJ3i97" style="border-bottom: Black 2.5pt double; text-align: right" title="Unrealized Gains (Losses)">158</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_984_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430_znC5ZEYMQX9f" style="border-bottom: Black 2.5pt double; text-align: right" title="Market Value">27,948</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> (f) Inventory In accordance with Accounting Standards Codification 330 (ASC 330), inventory is stated at the lower of costs or net realizable value applicable to goods on hand. Items remain in inventory until they are shipped to the customer, at which time the costs are transferred on a FIFO basis to cost of revenue, or moved to leased assets as applicable, following the matching principle where costs and revenue are recognized in the same period. The Company has three classes of inventory; raw materials, work in process, and finished goods. (g) Accounts Receivable Accounts receivable are stated at the net amount expected to be collected. Amounts are usually due between 30 and 90 days after the invoice issuance. The Company is exposed to credit losses primarily on accounts receivable and contract assets related to sales to customers. If applicable, an allowance for credit losses is established to provide for the expected lifetime credit losses by evaluating factors such as customer creditworthiness, historical payment and loss experiences, current economic conditions (including geographic and political risk), and the age and status of outstanding receivables. Based on these factors, management has determined the allowance for credit losses was immaterial. Expected credit losses are written off in the period in which the financial asset is no longer collectible. The Company grants credit to its customers, generally, without collateral, under normal payment terms (typically 30 to 90 days after invoicing). Generally, invoicing occurs after the services are performed or control of the product has transferred to the customer. Accounts receivable represent an unconditional right to consideration arising from the Company’s performance under contracts with customers. (h) Property and Equipment, net Property and equipment is stated at cost, less accumulated depreciation and amortization. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives (three to ten years) of the assets. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life of the asset or the remaining lease term. Expenses for maintenance and repairs are charged to operations as incurred. Property and equipment is also reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of the asset exceeds its estimated future cash flows, then an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Schedule of Property, Plant and Equipment, Useful Life <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%">Description</td> <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; width: 2%"> </td> <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%">Estimated useful life</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif">Equipment</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dtY_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember__srt--RangeAxis__srt--MinimumMember_z0hi6SGwTeLi" title="Property and equipment, useful life (Year)">5-<span id="xdx_90A_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember__srt--RangeAxis__srt--MaximumMember_zi0fFzcbAci7" title="Property and equipment, useful life (Year)">7 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif">Computer equipment & software</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90A_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--ComputerEquipmentAndSoftwareMember_z82BoB3rtx44" title="Property and equipment, useful life (Year)">3 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif">Office furniture & fixtures</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90B_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dtY_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndFixturesMember__srt--RangeAxis__srt--MinimumMember_zeCogKGubC52" title="Property and equipment, useful life (Year)">3-<span id="xdx_90F_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndFixturesMember__srt--RangeAxis__srt--MaximumMember_zDgKDZtjxSb8" title="Property and equipment, useful life (Year)">7 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leasehold improvements</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_901_eus-gaap--PropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration_iI_dxL_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zlhJlNWViUae" title="::XDX::http%3A%2F%2Ffasb.org%2Fus-gaap%2F2024%23UsefulLifeTermOfLeaseMember">Shorter of the estimated useful life or lease term</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leased Power Buoy assets</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_90D_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedPowerBuoysAssetsMember_zCgp2pumbnng" title="Property and equipment, useful life (Year)">10 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leased WAM-V assets</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_908_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedAssetsMember_zfXAspqk9hv9" title="Property and equipment, useful life (Year)">10 years</td></tr> </table> (i) Foreign Exchange Gains and Losses Transactions denominated in a foreign currency may result in realized and unrealized foreign exchange gains or losses from exchange rate fluctuations, which are included in “Foreign exchange (loss)/gain” in the accompanying Consolidated Statements of Operations. (j) Concentration of Credit Risk Financial instruments that potentially subject the Company to credit risk consist principally of trade accounts receivable, short-term investments and cash equivalents. The Company believes that its credit risk is limited because the Company’s current contracts are with entities with a reliable payment history. The Company invests its excess cash in a money market fund and short-term held-to maturity investments and does not believe that it is exposed to any significant risks related to its cash accounts, money market fund, or held-to maturity investments. As of the year ended April 30, 2024 and 2023, the Company had four and two customers whose revenue accounted for at least 10% of the Company’s consolidated revenue, respectively. These customers accounted for approximately <span id="xdx_90E_eus-gaap--ConcentrationRiskPercentage1_pid_dp_uPure_c20230501__20240430__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--TwoCustomersMember_zikLiOes8bKf" title="Concentration risk percentage">52% and <span id="xdx_90A_eus-gaap--ConcentrationRiskPercentage1_pid_dp_uPure_c20220501__20230430__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--TwoCustomersMember_zR9toZbYaEde" title="Concentration risk percentage">32% of the Company’s total revenue for the respective periods. (k) Net Loss per Common Share 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. Due to the Company’s net losses, potentially dilutive securities, consisting of options to purchase shares of common stock, warrants on common stock and unvested restricted stock units (“RSU”) issued to employees and non-employee directors, were excluded from the diluted loss per share calculation due to their anti-dilutive effect. 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 unvested restricted stock units issued to employees and non-employee directors, totaling <span id="xdx_909_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20230501__20240430_zpOfVnezdRjc" title="Antidilutive securities excluded from computation of earnings per share, amount">5,859,072 and <span id="xdx_90E_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20220501__20230430_zGvvdFt1DKXl" title="Antidilutive securities excluded from computation of earnings per share, amount">7,777,026 for the years ended April 30, 2024 and 2023, respectively, were excluded from each of the computations as the effect would have been anti-dilutive due to the net loss for the period. Share purchase rights, which include a contingency, are not included in the calculation until the contingency is resolved. (l) Share-Based Compensation Costs resulting from all share-based payment transactions are recognized in the consolidated financial statements at their fair values. The aggregate share-based compensation expense recorded in the Consolidated Statements of Operations for the years ended April 30, 2024 and 2023 was approximately $1.2 million and $1.5 million, respectively. The Company’s policy is to account for forfeitures of share-based compensation as they occur. Additionally, upon vesting of an RSU granted to an employee, the employee is given the option to either pay the taxes themselves, or have enough shares of their RSU award withheld by the Company to cover the taxes incurred by the employee. In the event the employee elects to surrender shares to cover the tax implication, the Company maintains those shares in the Company’s treasury stock account. (m) Intangibles, net Intangible assets acquired in a business combination are recognized separately from goodwill and are initially recognized at their fair value at the acquisition date (which is regarded as their cost). Intangible assets, including patents, are amortized over the estimated useful life of the asset on a basis that approximates the pattern of economic benefit. The patents, trade name and customer relationship intangibles are being amortized over <span id="xdx_90F_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_iI_dtY_c20240430__us-gaap--IndefiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zTUHfmXRnwj6" title="Intangible asset estimated lives">20, <span id="xdx_90A_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_iI_dtY_c20240430__us-gaap--IndefiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--TradeNamesMember_zf1jo6LT4AUc" title="Intangible asset estimated lives">12 and <span id="xdx_90E_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_iI_dtY_c20240430__us-gaap--IndefiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_znoV7PSZsfIh" title="Intangible asset estimated lives">10 years respectively, which is consistent with the estimated pattern of economic benefit of the assets. The trademark is not subject to amortization. Intangible assets are reviewed for impairment if indicators of potential impairment exist. There was no indication of impairment of intangible assets for the fiscal years ended April 30, 2024 and April 30, 2023. However, in connection with the sale of 3Dent in November of 2023, the trade-name and customer relationships were both expensed fully during the year ended April 30, 2024 under Loss on disposition of assets on the Consolidated Statements of Operations. (n) Goodwill Goodwill is assessed for impairment using a qualitative or quantitative approach. The Company performs an annual impairment test of goodwill and further periodic tests to the extent indicators of impairment develop between annual impairment tests. There were no indications of potential impairment of goodwill identified for the year ended April 30, 2024 and 2023. Where the Company uses a qualitative analysis, it considers factors that include historical financial performance, macroeconomic and industry conditions, and the legal and regulatory environment. If the qualitative assessment indicates that it is more likely than not that an impairment exists, then a quantitative assessment is also performed. The quantitative assessment requires an analysis of several estimates including future cash flows or income consistent with management’s strategic business plans, annual sales growth rates and the selection of assumptions underlying a discount rate (weighted average cost of capital) based on market data available at the time to determine fair value of the Company. If the fair value is less than the carrying amounts, an impairment charge for the difference is recorded. The Company acquired goodwill as part of its purchase of MAR. Management performed its annual qualitative assessment in fiscal year 2024 and 2023 and determined that it is more likely than not that no goodwill impairment existed as of April 30, 2024 and 2023. (o) Income Taxes Income taxes are accounted for under ACS 740 utilizing the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and operating loss and tax credit carry forwards are expected to be recovered, settled or utilized. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all the deferred tax assets will not be realized. If such event occurs, a valuation allowance is recorded. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained upon examination. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest related to unrecognized tax benefits in interest expense and penalties in selling, general, and administrative expenses, to the extent incurred. Refer to Note 14 for additional disclosure. (p) Accumulated Other Comprehensive Loss The functional currency for the Company’s foreign operations is the applicable local currency. The translation from the applicable foreign currencies to U.S. dollars is performed for balance sheet accounts using the exchange rates in effect at the balance sheet date and for revenue and expense accounts using an average exchange rate during the period. The unrealized gains or losses resulting from such translation are included in Accumulated Other Comprehensive Loss within Shareholders’ Equity. For the year ended April 30, 2024 and 2023, there were no amounts recorded to other comprehensive (income) loss due to limited foreign operations. (q) Warranty The Company does not include a right of return on its products other than rights related to standard warranty provisions that permit repair or replacement of defective goods. Warranty expense incurred to date has not been material. (r) Product development Costs related to research and development activities by the Company are expensed as incurred. The Company had approximately $7.7 million and $10.0 million in product development expense for the year ended April 30, 2024 and 2023, respectively. (s) Recently Issued Accounting Standards In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”), which improves the transparency of income tax disclosures by requiring companies to (1) disclose consistent categories and greater disaggregation of information in the effective rate reconciliation and (2) provide information on income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, although early adoption is permitted. The guidance should be applied on a prospective basis with the option to apply the standard retrospectively. We are currently evaluating the impact of adopting this ASU 2023-09 on our consolidated financial statements and disclosures. In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU improves financial reporting by requiring disclosure of incremental segment information. The new guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU 2023-07 on our consolidated financial statements and disclosures. (t) Reclassifications Certain amounts may have been reclassified to conform to current period presentation. This reclassification had no impact on the previously reported net loss or comprehensive loss.

(a) Basis of Consolidation The accompanying consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries, Marine Advanced Robotics Inc. (CA), referred to herein as MAR, 3dent Technologies LLC (3Dent), Oregon Wave Energy Partners I LLC (DE), ReedSport OPT WavePark, LLC (OR) and Ocean Power Technologies Ltd. in the United Kingdom. ReedSport OPT WavePark, LLC (OR) and Oregon Wave Energy Partners I, LLC (DE) were dissolved during the first quarter of fiscal 2024. 3dent was sold in November 2023 and the consolidated financial statements include 3dent’s results of operations through the date of sale. All significant intercompany balances and transactions have been eliminated in consolidation.

(b) Use of Estimates The preparation of the consolidated financial statements requires management of the Company to make several estimates and assumptions relating to the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the period. Significant items subject to such estimates and assumptions include, among other items, stock-based compensation based on actual and projected revenues, over time revenue recognition, valuation consideration related to business combinations, including contingent consideration based on actual and projected revenues, including discount rates and present values, and other assumptions and estimates used to evaluate the recoverability of long-lived assets, goodwill and other intangible assets. Actual results could differ from those estimates.

(c) Business Combinations The Company accounts for business combinations in accordance with Financial Accounting and Standards Board (“FASB”) Business Combinations (Topic 805). The Company allocates the fair value of consideration transferred in a business combination to the estimated fair value at the acquisition date of the tangible and intangible assets acquired as well as the liabilities assumed. Acquisition costs are expensed as incurred. Any excess consideration transferred is recorded as goodwill and in instances where the fair value of consideration transferred is less than the estimated fair value of tangible and intangible assets acquired less liabilities assumed, such amounts are recorded as a gain on the bargain purchase.

(d) Revenue Recognition The Company accounts for revenue in accordance with Accounting Standards Codification 606 (ASC 606) for contracts with customers and Accounting Standards Codification 842 (ASC 842) for leasing arrangements. In relation to ASC 606, which states that 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 as 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 performance obligation 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. When no observable standalone selling price is available, the standalone selling price is generally estimated based upon the Company’s forecast of the total cost to satisfy the performance obligation plus an appropriate profit margin. The nature of the Company’s contracts may give rise to several types of variable consideration, including unpriced change orders, 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. Estimates of variable consideration and determination of whether to include such amounts in the transaction price are based largely on the assessment of legal enforceability, performance, and any other information (historical, current, and forecasted) that is reasonably available to us. There was no variable consideration as of April 30, 2024 or 2023. The Company presents shipping and handling costs, that occur after control of the promised goods or services transfer to the customer, as fulfillment costs in costs of goods sold and regular shipping and handling activities charged to operating expenses. 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. 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 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 or labor hours incurred best represents the measure of progress against the performance obligations incorporated within the contractual agreements. If estimated total costs on any contract project a loss, the Company charges the entire estimated loss to operations in the period the loss becomes known. The cumulative effect of revisions to revenue, estimated costs to complete contracts, including penalties, change orders, claims, anticipated losses, and others are recorded in the accounting period in which the events indicating a loss are known and the loss can be reasonably estimated. These loss projections are reassessed for each subsequent reporting period until the project is complete. Such revisions could occur at any time and the effects may be material. During the fiscal year ended April 30, 2024 the Company recognized approximately $<span id="xdx_90F_eus-gaap--RevenueRemainingPerformanceObligation_iI_pn5n6_c20240430__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredOverTimeMember_z7IkbF9AaK93" title="Revenue related to performance obligations satisfied at a point in time">3.7 million in revenue related to performance obligations satisfied at a point in time and approximately $<span id="xdx_903_eus-gaap--RevenueRemainingPerformanceObligation_iI_pn5n6_c20240430__us-gaap--TimingOfTransferOfGoodOrServiceAxis__us-gaap--TransferredAtPointInTimeMember_zfqKILJ9gRE6" title="Revenue related to performance obligations satisfied over-time">1.9 million in revenue related to performance obligations satisfied over time. The Company’s contracts are either cost-plus contracts, fixed-price contracts, time and material agreements, lease or service agreements. Under cost plus contracts, customers are billed for actual expenses incurred plus an agreed-upon fee. 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, and 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 revenue, resulting in gross profit on these contracts of zero. For the fiscal years ended April 30, 2024 and 2023, the majority of the Company’s contracts were classified as firm fixed-price and the remainder were cost-sharing. The Company’s contract assets and liabilities primarily relate to the timing differences between cash received from a customer in connection with contractual rights to invoicing and the timing of revenue recognition following completion of performance obligations. The Company’s accounts receivable balance is made up entirely of customer contract-related balances. The Company’s revenue also includes revenue from certain contracts which do not fall within the scope of ASC 606, but under the scope of ASC 842. At inception of a contract for those classified under ASC 842, the Company classifies leases as either operating or financing in accordance with the authoritative accounting guidance contained within ASC Topic 842, “Leases”. 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 operating leases. The Company recognizes revenue from operating lease arrangements generally on a straight-line basis over the lease term, or as agreed upon in-use days are utilized, which is presented in Revenue in the Consolidated Statement of Operations. The Company also enters into lease arrangements for its PowerBuoys® and Wave Adaptive Modular Vessels (“WAM-V®”) with certain customers. 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 PowerBuoy®, WAM-V®, and components, while non-lease elements, which the Company expects to become more prevalent, generally include engineering, monitoring and support services. In the lease arrangement, the customer may be provided with an option to extend the lease term or purchase the leased buoy or WAM-V® at some point during and/or at the end of the lease term. As of April 30, 2024, the Company’s remaining performance obligations, also called contracted backlog, totaled $4.9 million. The Company has elected to record taxes collected from customers on a net basis and does not include tax amounts in revenue or costs of revenue. The below table represents the total revenue recognized under ASC 606 and ASC 842 fiscal years ended April 30, 2024 and 2023: Schedule of Revenue Recognizes From Operating Lease Arrangements <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20230501__20240430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__custom--AccountingStandardsUpdate606Member_zbJxGstwnVQ8" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_492_20230501__20240430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__us-gaap--AccountingStandardsUpdate201602Member_zNUiHMkO8X66" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230501__20240430_z2Bm856EDRWj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20220501__20230430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__custom--AccountingStandardsUpdate606Member_zRxTUiGF9yf5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__us-gaap--AccountingStandardsUpdate201602Member_zqCgcXZlozrd" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49B_20220501__20230430_zVUoYcwVGnO" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30, 2024</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30, 2023</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td><td style="border-left: Black 1.5pt solid; text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Product Line:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__custom--WAMVMember_zorzHo2UVHN3" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; width: 22%">WAM-V</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,912</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,392</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">3,304</td><td style="width: 1%; text-align: left"> </td><td style="border-left: Black 1.5pt solid; width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">919</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">667</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,586</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__custom--BuoyMember_zEozBToLMcv6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Buoy</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,739</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,739</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right">269</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">269</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__us-gaap--ServiceMember_zD7b6fvgG8b3" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Services</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">482</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">482</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">877</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">877</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__us-gaap--ProductMember_ze7OL644hHQd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; font-weight: bold">Region:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--NorthAndSouthAmericaMember_zIWR5EZRDS11" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">North and South America</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,101</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,177</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,278</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">1,722</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,389</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__srt--EuropeMember_z3n2D0AZxqe4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Europe</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">32</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">215</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">247</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right">90</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">90</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember_zbcW1g2oNJc6" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Asia and Australia</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">253</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">253</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--RegionMember_zqzKgFP2p8Rf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--RegionMember_zceHDst7RKce" style="display: none; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Revenue</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> </table>

3700000

1900000

4900000

The below table represents the total revenue recognized under ASC 606 and ASC 842 fiscal years ended April 30, 2024 and 2023: Schedule of Revenue Recognizes From Operating Lease Arrangements <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20230501__20240430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__custom--AccountingStandardsUpdate606Member_zbJxGstwnVQ8" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_492_20230501__20240430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__us-gaap--AccountingStandardsUpdate201602Member_zNUiHMkO8X66" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230501__20240430_z2Bm856EDRWj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20220501__20230430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__custom--AccountingStandardsUpdate606Member_zRxTUiGF9yf5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430__us-gaap--AdjustmentsForNewAccountingPronouncementsAxis__us-gaap--AccountingStandardsUpdate201602Member_zqCgcXZlozrd" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49B_20220501__20230430_zVUoYcwVGnO" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30, 2024</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30, 2023</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 606</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">ASC 842</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td><td style="border-left: Black 1.5pt solid; text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Product Line:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__custom--WAMVMember_zorzHo2UVHN3" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; width: 22%">WAM-V</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,912</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,392</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">3,304</td><td style="width: 1%; text-align: left"> </td><td style="border-left: Black 1.5pt solid; width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">919</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">667</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">1,586</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__custom--BuoyMember_zEozBToLMcv6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Buoy</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,739</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,739</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right">269</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">269</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__us-gaap--ServiceMember_zD7b6fvgG8b3" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Services</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">482</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">482</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">877</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">877</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--Revenues_hsrt--ProductOrServiceAxis__us-gaap--ProductMember_ze7OL644hHQd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; font-weight: bold">Region:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--NorthAndSouthAmericaMember_zIWR5EZRDS11" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">North and South America</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,101</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,177</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,278</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">1,722</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,389</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__srt--EuropeMember_z3n2D0AZxqe4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Europe</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">32</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">215</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">247</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td style="text-align: right">90</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">90</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember_zbcW1g2oNJc6" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Asia and Australia</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">253</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">253</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--RegionMember_zqzKgFP2p8Rf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--Revenues_hsrt--StatementGeographicalAxis__custom--RegionMember_zceHDst7RKce" style="display: none; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Revenue</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">4,133</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,392</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">5,525</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left">$</td><td style="text-align: right">2,065</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">667</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,732</td><td style="text-align: left"> </td></tr> </table>

1912000

1392000

3304000

919000

667000

1586000

1739000

269000

482000

877000

4133000

1392000

5525000

2065000

667000

2732000

4101000

1177000

5278000

1722000

667000

2389000

32000

215000

247000

90000

253000

4133000

1392000

5525000

2065000

667000

2732000

4133000

1392000

5525000

2065000

667000

2732000

(e) Cash and Cash Equivalents, Restricted Cash, Security Agreements and Investments Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less when purchased, to be cash equivalents. The Company invests excess cash in a money market account or in short term investments that are held-to-maturity. The Company had cash and cash equivalents of approximately $3.3 million and $7.1 million as of April 30, 2024 and 2023, respectively. Restricted Cash and Security Agreements The Company has a letter of credit agreement with Santander Bank, N.A. (“Santander”). Cash of $154,000 is on deposit at Santander and serves as security for a letter of credit issued by Santander for the lease of warehouse/office space in Monroe Township, New Jersey. In the prior year Santander also issued one letter of credit to subsidiaries of Enel Green Power (“EGP”) pursuant to the Company’s contracts with EGP. A letter of credit was issued in the amount of $<span id="xdx_90D_eus-gaap--LettersOfCreditOutstandingAmount_iI_c20200831__us-gaap--TypeOfArrangementAxis__custom--RestrictedCashAndSecurityAgreementsMember__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterOneMember_zCYYY8nzRVZe" title="Letters of credit outstanding">645,000 and was reduced to $<span id="xdx_90B_eus-gaap--LettersOfCreditOutstandingAmount_iI_c20200831__us-gaap--AwardDateAxis__custom--AugustTwentyTwentyMember__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterTwoMember_zwDy3EX2Mofi" title="Letters of credit outstanding">323,000 in August 2020. The letter of credit was further reduced by an additional $<span id="xdx_90E_ecustom--LettersOfCreditIssuedAmount_iI_c20230131__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterTwoMember_z3Lu8xblUHha" title="Letters of credit issued amount">258,000 in January of 2023, when the PB3 and its accompanying systems passed final acceptance testing. The remaining restricted amount of $<span id="xdx_908_ecustom--LettersOfCreditIssuedAmount_iI_c20240131__us-gaap--AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis__custom--SantanderBankMember__us-gaap--ShortTermDebtTypeAxis__custom--LetterTwoMember_zH6OBaCwQ1q4" title="Letters of credit issued amount">65,000 was released in January of 2024. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets that total to the same amounts shown in the Consolidated Statements of Cash Flows. Schedule of Cash and Cash Equivalents and Restricted Cash <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20240430_zHxhW7j67tj7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20230430_zdkwSvmcU9lf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40D_eus-gaap--CashAndCashEquivalentsAtCarryingValue_iI_pn3n3_maCCERCzbyj_zngrRkI0FLW7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Cash and cash equivalents</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">3,151</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">6,883</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--RestrictedCashCurrent_iI_pn3n3_maCCERCzbyj_zHVJ3EwM1Csk" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Restricted cash- short term</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">65</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--RestrictedCashNoncurrent_iI_pn3n3_maCCERCzbyj_zDawTm0FS1r3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Restricted cash- long term</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">154</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">155</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_iTI_pn3n3_mtCCERCzbyj_zxMwJiJEOCNj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Cash, cash equivalents, restricted cash and restricted cash equivalents</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,305</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">7,103</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Short Term Investments As of April 30, 2024 and 2023, their carrying value was approximately zero and $27.8 million, respectively. All short-term investments consist of corporate bonds, government agency bonds, or U.S. Treasury Notes and Bonds, are investment grade rated or better, and mature within 12 months. The Company has the ability and the intention to hold all investments to maturity, and as such are classified as held-to-maturity investments and carried at amortized cost. As of April 30, 2024, as all short term investments have matured. The total accretion of discounts recognized for the years ended April 30, 2024 and 2023 is approximately $290,000 and $122,000, respectively. Additionally, there has been no impairment on these investments. The following table summarizes the Company’s short-term investments as of April 30, 2024 and 2023: Schedule of Investments and Unrealized Gains/Losses <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1.5pt solid; text-align: left; font-weight: bold">Category</td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amortized Cost</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Unrealized Gains (Losses)</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Market Value</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amortized Cost</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Unrealized Gains (Losses)</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Market Value</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td><td style="border-left: Black 1.5pt solid; text-align: center"> </td> <td colspan="10" style="text-align: center"> </td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 22%; text-align: left">Corporate Bonds</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zW5FkFwUaO1g" style="width: 9%; text-align: right" title="Amortized Cost">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zVmkCKKVL5Yi" style="width: 9%; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zy7cQweAi00i" style="width: 9%; text-align: right" title="Market Value">—</td><td style="width: 1%; text-align: left"> </td><td style="border-left: Black 1.5pt solid; width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_z8ewA93dDBle" style="width: 9%; text-align: right" title="Amortized Cost">14,776</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zaLtZ2w0lD3j" style="width: 9%; text-align: right" title="Unrealized Gains (Losses)">100</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zeVFFBG6fOU9" style="width: 9%; text-align: right" title="Market Value">14,876</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Government Bonds & Notes</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z43vfEHL5e1b" style="text-align: right" title="Amortized Cost">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_ziOr3TGgZvuf" style="text-align: right" title="Unrealized Gains (Losses)">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z5WObor1wqF6" style="text-align: right" title="Market Value">—</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z3ZtjmOWrGE4" style="text-align: right" title="Amortized Cost">9,188</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_zkH6OU4mY3F5" style="text-align: right" title="Unrealized Gains (Losses)">33</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_zyUWpvmhlNzk" style="text-align: right" title="Market Value">9,221</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Government Agency</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zJwj9y1d69Hl" style="border-bottom: Black 1.5pt solid; text-align: right" title="Amortized Cost">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_z4xJUOeiE0Nc" style="border-bottom: Black 1.5pt solid; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zqr2XhA4t5Si" style="border-bottom: Black 1.5pt solid; text-align: right" title="Market Value">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_z11RWEUukDv1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Amortized Cost">3,826</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zfcgCNav6FSe" style="border-bottom: Black 1.5pt solid; text-align: right" title="Unrealized Gains (Losses)">25</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zkFm7MEhH8ea" style="border-bottom: Black 1.5pt solid; text-align: right" title="Market Value">3,851</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Total Short Term Investments</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430_z0uWtyWvmIS3" style="border-bottom: Black 2.5pt double; text-align: right" title="Amortized Cost">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430_zV07G5HAFyN5" style="border-bottom: Black 2.5pt double; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430_zo1fFnNISQRk" style="border-bottom: Black 2.5pt double; text-align: right" title="Market Value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430_zgjWQu9V7HZf" style="border-bottom: Black 2.5pt double; text-align: right" title="Amortized Cost">27,790</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_989_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430_zXgZ2YlJ3i97" style="border-bottom: Black 2.5pt double; text-align: right" title="Unrealized Gains (Losses)">158</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_984_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430_znC5ZEYMQX9f" style="border-bottom: Black 2.5pt double; text-align: right" title="Market Value">27,948</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

3300000

7100000

154000

645000

323000

258000 65000

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets that total to the same amounts shown in the Consolidated Statements of Cash Flows. Schedule of Cash and Cash Equivalents and Restricted Cash <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20240430_zHxhW7j67tj7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20230430_zdkwSvmcU9lf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40D_eus-gaap--CashAndCashEquivalentsAtCarryingValue_iI_pn3n3_maCCERCzbyj_zngrRkI0FLW7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Cash and cash equivalents</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">3,151</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">6,883</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--RestrictedCashCurrent_iI_pn3n3_maCCERCzbyj_zHVJ3EwM1Csk" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Restricted cash- short term</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">65</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--RestrictedCashNoncurrent_iI_pn3n3_maCCERCzbyj_zDawTm0FS1r3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Restricted cash- long term</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">154</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">155</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_iTI_pn3n3_mtCCERCzbyj_zxMwJiJEOCNj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Cash, cash equivalents, restricted cash and restricted cash equivalents</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,305</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">7,103</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

3151000

6883000

65000

154000

155000

3305000

7103000

27800000

290000 122000

The following table summarizes the Company’s short-term investments as of April 30, 2024 and 2023: Schedule of Investments and Unrealized Gains/Losses <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1.5pt solid; text-align: left; font-weight: bold">Category</td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amortized Cost</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Unrealized Gains (Losses)</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Market Value</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="border-left: Black 1.5pt solid; text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amortized Cost</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Unrealized Gains (Losses)</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Market Value</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td><td style="border-left: Black 1.5pt solid; text-align: center"> </td> <td colspan="10" style="text-align: center"> </td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 22%; text-align: left">Corporate Bonds</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zW5FkFwUaO1g" style="width: 9%; text-align: right" title="Amortized Cost">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zVmkCKKVL5Yi" style="width: 9%; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zy7cQweAi00i" style="width: 9%; text-align: right" title="Market Value">—</td><td style="width: 1%; text-align: left"> </td><td style="border-left: Black 1.5pt solid; width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_z8ewA93dDBle" style="width: 9%; text-align: right" title="Amortized Cost">14,776</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zaLtZ2w0lD3j" style="width: 9%; text-align: right" title="Unrealized Gains (Losses)">100</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--CorporateBondsMember_zeVFFBG6fOU9" style="width: 9%; text-align: right" title="Market Value">14,876</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Government Bonds & Notes</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z43vfEHL5e1b" style="text-align: right" title="Amortized Cost">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_ziOr3TGgZvuf" style="text-align: right" title="Unrealized Gains (Losses)">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z5WObor1wqF6" style="text-align: right" title="Market Value">—</td><td style="text-align: left"> </td><td style="border-left: Black 1.5pt solid"> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_z3ZtjmOWrGE4" style="text-align: right" title="Amortized Cost">9,188</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_zkH6OU4mY3F5" style="text-align: right" title="Unrealized Gains (Losses)">33</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentBondsandNotesMember_zyUWpvmhlNzk" style="text-align: right" title="Market Value">9,221</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Government Agency</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98C_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zJwj9y1d69Hl" style="border-bottom: Black 1.5pt solid; text-align: right" title="Amortized Cost">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_z4xJUOeiE0Nc" style="border-bottom: Black 1.5pt solid; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zqr2XhA4t5Si" style="border-bottom: Black 1.5pt solid; text-align: right" title="Market Value">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_z11RWEUukDv1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Amortized Cost">3,826</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zfcgCNav6FSe" style="border-bottom: Black 1.5pt solid; text-align: right" title="Unrealized Gains (Losses)">25</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430__us-gaap--InvestmentTypeAxis__custom--GovernmentAgencyMember_zkFm7MEhH8ea" style="border-bottom: Black 1.5pt solid; text-align: right" title="Market Value">3,851</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Total Short Term Investments</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20240430_z0uWtyWvmIS3" style="border-bottom: Black 2.5pt double; text-align: right" title="Amortized Cost">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20230501__20240430_zV07G5HAFyN5" style="border-bottom: Black 2.5pt double; text-align: right" title="Unrealized Gains (Losses)">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20240430_zo1fFnNISQRk" style="border-bottom: Black 2.5pt double; text-align: right" title="Market Value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="border-left: Black 1.5pt solid; padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--InvestmentOwnedAtCost_iI_pn3n3_c20230430_zgjWQu9V7HZf" style="border-bottom: Black 2.5pt double; text-align: right" title="Amortized Cost">27,790</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_989_eus-gaap--UnrealizedGainLossOnInvestments_pn3n3_c20220501__20230430_zXgZ2YlJ3i97" style="border-bottom: Black 2.5pt double; text-align: right" title="Unrealized Gains (Losses)">158</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_984_eus-gaap--MoneyMarketFundsAtCarryingValue_iI_pn3n3_c20230430_znC5ZEYMQX9f" style="border-bottom: Black 2.5pt double; text-align: right" title="Market Value">27,948</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

14776000

100000

14876000

9188000

33000

9221000

3826000

25000

3851000

27790000

158000

27948000

(f) Inventory In accordance with Accounting Standards Codification 330 (ASC 330), inventory is stated at the lower of costs or net realizable value applicable to goods on hand. Items remain in inventory until they are shipped to the customer, at which time the costs are transferred on a FIFO basis to cost of revenue, or moved to leased assets as applicable, following the matching principle where costs and revenue are recognized in the same period. The Company has three classes of inventory; raw materials, work in process, and finished goods.

(g) Accounts Receivable Accounts receivable are stated at the net amount expected to be collected. Amounts are usually due between 30 and 90 days after the invoice issuance. The Company is exposed to credit losses primarily on accounts receivable and contract assets related to sales to customers. If applicable, an allowance for credit losses is established to provide for the expected lifetime credit losses by evaluating factors such as customer creditworthiness, historical payment and loss experiences, current economic conditions (including geographic and political risk), and the age and status of outstanding receivables. Based on these factors, management has determined the allowance for credit losses was immaterial. Expected credit losses are written off in the period in which the financial asset is no longer collectible. The Company grants credit to its customers, generally, without collateral, under normal payment terms (typically 30 to 90 days after invoicing). Generally, invoicing occurs after the services are performed or control of the product has transferred to the customer. Accounts receivable represent an unconditional right to consideration arising from the Company’s performance under contracts with customers.

(h) Property and Equipment, net Property and equipment is stated at cost, less accumulated depreciation and amortization. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives (three to ten years) of the assets. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life of the asset or the remaining lease term. Expenses for maintenance and repairs are charged to operations as incurred. Property and equipment is also reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of the asset exceeds its estimated future cash flows, then an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. Schedule of Property, Plant and Equipment, Useful Life <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%">Description</td> <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; width: 2%"> </td> <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%">Estimated useful life</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif">Equipment</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dtY_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember__srt--RangeAxis__srt--MinimumMember_z0hi6SGwTeLi" title="Property and equipment, useful life (Year)">5-<span id="xdx_90A_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember__srt--RangeAxis__srt--MaximumMember_zi0fFzcbAci7" title="Property and equipment, useful life (Year)">7 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif">Computer equipment & software</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90A_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--ComputerEquipmentAndSoftwareMember_z82BoB3rtx44" title="Property and equipment, useful life (Year)">3 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif">Office furniture & fixtures</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90B_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dtY_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndFixturesMember__srt--RangeAxis__srt--MinimumMember_zeCogKGubC52" title="Property and equipment, useful life (Year)">3-<span id="xdx_90F_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndFixturesMember__srt--RangeAxis__srt--MaximumMember_zDgKDZtjxSb8" title="Property and equipment, useful life (Year)">7 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leasehold improvements</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_901_eus-gaap--PropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration_iI_dxL_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zlhJlNWViUae" title="::XDX::http%3A%2F%2Ffasb.org%2Fus-gaap%2F2024%23UsefulLifeTermOfLeaseMember">Shorter of the estimated useful life or lease term</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leased Power Buoy assets</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_90D_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedPowerBuoysAssetsMember_zCgp2pumbnng" title="Property and equipment, useful life (Year)">10 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leased WAM-V assets</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_908_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedAssetsMember_zfXAspqk9hv9" title="Property and equipment, useful life (Year)">10 years</td></tr> </table>

Schedule of Property, Plant and Equipment, Useful Life <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%">Description</td> <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; width: 2%"> </td> <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%">Estimated useful life</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif">Equipment</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dtY_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember__srt--RangeAxis__srt--MinimumMember_z0hi6SGwTeLi" title="Property and equipment, useful life (Year)">5-<span id="xdx_90A_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember__srt--RangeAxis__srt--MaximumMember_zi0fFzcbAci7" title="Property and equipment, useful life (Year)">7 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif">Computer equipment & software</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90A_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--ComputerEquipmentAndSoftwareMember_z82BoB3rtx44" title="Property and equipment, useful life (Year)">3 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif">Office furniture & fixtures</td> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90B_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dtY_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndFixturesMember__srt--RangeAxis__srt--MinimumMember_zeCogKGubC52" title="Property and equipment, useful life (Year)">3-<span id="xdx_90F_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndFixturesMember__srt--RangeAxis__srt--MaximumMember_zDgKDZtjxSb8" title="Property and equipment, useful life (Year)">7 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leasehold improvements</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_901_eus-gaap--PropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration_iI_dxL_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zlhJlNWViUae" title="::XDX::http%3A%2F%2Ffasb.org%2Fus-gaap%2F2024%23UsefulLifeTermOfLeaseMember">Shorter of the estimated useful life or lease term</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leased Power Buoy assets</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_90D_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedPowerBuoysAssetsMember_zCgp2pumbnng" title="Property and equipment, useful life (Year)">10 years</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; background-color: White"> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">Leased WAM-V assets</td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span id="xdx_908_eus-gaap--PropertyPlantAndEquipmentUsefulLife_iI_dc_c20240430__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedAssetsMember_zfXAspqk9hv9" title="Property and equipment, useful life (Year)">10 years</td></tr> </table>

P5Y

P7Y

P3Y

P7Y

P10Y

(i) Foreign Exchange Gains and Losses Transactions denominated in a foreign currency may result in realized and unrealized foreign exchange gains or losses from exchange rate fluctuations, which are included in “Foreign exchange (loss)/gain” in the accompanying Consolidated Statements of Operations.

(j) Concentration of Credit Risk Financial instruments that potentially subject the Company to credit risk consist principally of trade accounts receivable, short-term investments and cash equivalents. The Company believes that its credit risk is limited because the Company’s current contracts are with entities with a reliable payment history. The Company invests its excess cash in a money market fund and short-term held-to maturity investments and does not believe that it is exposed to any significant risks related to its cash accounts, money market fund, or held-to maturity investments. As of the year ended April 30, 2024 and 2023, the Company had four and two customers whose revenue accounted for at least 10% of the Company’s consolidated revenue, respectively. These customers accounted for approximately <span id="xdx_90E_eus-gaap--ConcentrationRiskPercentage1_pid_dp_uPure_c20230501__20240430__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--TwoCustomersMember_zikLiOes8bKf" title="Concentration risk percentage">52% and <span id="xdx_90A_eus-gaap--ConcentrationRiskPercentage1_pid_dp_uPure_c20220501__20230430__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--SalesRevenueNetMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--TwoCustomersMember_zR9toZbYaEde" title="Concentration risk percentage">32% of the Company’s total revenue for the respective periods.

0.52

0.32

(k) Net Loss per Common Share 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. Due to the Company’s net losses, potentially dilutive securities, consisting of options to purchase shares of common stock, warrants on common stock and unvested restricted stock units (“RSU”) issued to employees and non-employee directors, were excluded from the diluted loss per share calculation due to their anti-dilutive effect. 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 unvested restricted stock units issued to employees and non-employee directors, totaling <span id="xdx_909_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20230501__20240430_zpOfVnezdRjc" title="Antidilutive securities excluded from computation of earnings per share, amount">5,859,072 and <span id="xdx_90E_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20220501__20230430_zGvvdFt1DKXl" title="Antidilutive securities excluded from computation of earnings per share, amount">7,777,026 for the years ended April 30, 2024 and 2023, respectively, were excluded from each of the computations as the effect would have been anti-dilutive due to the net loss for the period. Share purchase rights, which include a contingency, are not included in the calculation until the contingency is resolved.

5859072

7777026

(l) Share-Based Compensation Costs resulting from all share-based payment transactions are recognized in the consolidated financial statements at their fair values. The aggregate share-based compensation expense recorded in the Consolidated Statements of Operations for the years ended April 30, 2024 and 2023 was approximately $1.2 million and $1.5 million, respectively. The Company’s policy is to account for forfeitures of share-based compensation as they occur. Additionally, upon vesting of an RSU granted to an employee, the employee is given the option to either pay the taxes themselves, or have enough shares of their RSU award withheld by the Company to cover the taxes incurred by the employee. In the event the employee elects to surrender shares to cover the tax implication, the Company maintains those shares in the Company’s treasury stock account.

1200000

1500000

(m) Intangibles, net Intangible assets acquired in a business combination are recognized separately from goodwill and are initially recognized at their fair value at the acquisition date (which is regarded as their cost). Intangible assets, including patents, are amortized over the estimated useful life of the asset on a basis that approximates the pattern of economic benefit. The patents, trade name and customer relationship intangibles are being amortized over <span id="xdx_90F_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_iI_dtY_c20240430__us-gaap--IndefiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zTUHfmXRnwj6" title="Intangible asset estimated lives">20, <span id="xdx_90A_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_iI_dtY_c20240430__us-gaap--IndefiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--TradeNamesMember_zf1jo6LT4AUc" title="Intangible asset estimated lives">12 and <span id="xdx_90E_eus-gaap--FiniteLivedIntangibleAssetUsefulLife_iI_dtY_c20240430__us-gaap--IndefiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_znoV7PSZsfIh" title="Intangible asset estimated lives">10 years respectively, which is consistent with the estimated pattern of economic benefit of the assets. The trademark is not subject to amortization. Intangible assets are reviewed for impairment if indicators of potential impairment exist. There was no indication of impairment of intangible assets for the fiscal years ended April 30, 2024 and April 30, 2023. However, in connection with the sale of 3Dent in November of 2023, the trade-name and customer relationships were both expensed fully during the year ended April 30, 2024 under Loss on disposition of assets on the Consolidated Statements of Operations.

P20Y

P12Y

P10Y

(n) Goodwill Goodwill is assessed for impairment using a qualitative or quantitative approach. The Company performs an annual impairment test of goodwill and further periodic tests to the extent indicators of impairment develop between annual impairment tests. There were no indications of potential impairment of goodwill identified for the year ended April 30, 2024 and 2023. Where the Company uses a qualitative analysis, it considers factors that include historical financial performance, macroeconomic and industry conditions, and the legal and regulatory environment. If the qualitative assessment indicates that it is more likely than not that an impairment exists, then a quantitative assessment is also performed. The quantitative assessment requires an analysis of several estimates including future cash flows or income consistent with management’s strategic business plans, annual sales growth rates and the selection of assumptions underlying a discount rate (weighted average cost of capital) based on market data available at the time to determine fair value of the Company. If the fair value is less than the carrying amounts, an impairment charge for the difference is recorded. The Company acquired goodwill as part of its purchase of MAR. Management performed its annual qualitative assessment in fiscal year 2024 and 2023 and determined that it is more likely than not that no goodwill impairment existed as of April 30, 2024 and 2023.

(o) Income Taxes Income taxes are accounted for under ACS 740 utilizing the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and operating loss and tax credit carry forwards are expected to be recovered, settled or utilized. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all the deferred tax assets will not be realized. If such event occurs, a valuation allowance is recorded. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company recognizes the effect of income tax positions only if those positions are more likely than not of being sustained upon examination. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest related to unrecognized tax benefits in interest expense and penalties in selling, general, and administrative expenses, to the extent incurred. Refer to Note 14 for additional disclosure.

(p) Accumulated Other Comprehensive Loss The functional currency for the Company’s foreign operations is the applicable local currency. The translation from the applicable foreign currencies to U.S. dollars is performed for balance sheet accounts using the exchange rates in effect at the balance sheet date and for revenue and expense accounts using an average exchange rate during the period. The unrealized gains or losses resulting from such translation are included in Accumulated Other Comprehensive Loss within Shareholders’ Equity. For the year ended April 30, 2024 and 2023, there were no amounts recorded to other comprehensive (income) loss due to limited foreign operations. (q) Warranty The Company does not include a right of return on its products other than rights related to standard warranty provisions that permit repair or replacement of defective goods. Warranty expense incurred to date has not been material.

(r) Product development Costs related to research and development activities by the Company are expensed as incurred. The Company had approximately $7.7 million and $10.0 million in product development expense for the year ended April 30, 2024 and 2023, respectively.

7700000

10000000.0

(s) Recently Issued Accounting Standards In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”), which improves the transparency of income tax disclosures by requiring companies to (1) disclose consistent categories and greater disaggregation of information in the effective rate reconciliation and (2) provide information on income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, although early adoption is permitted. The guidance should be applied on a prospective basis with the option to apply the standard retrospectively. We are currently evaluating the impact of adopting this ASU 2023-09 on our consolidated financial statements and disclosures. In November 2023, the FASB issued ASU No. 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU improves financial reporting by requiring disclosure of incremental segment information. The new guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU 2023-07 on our consolidated financial statements and disclosures.

(t) Reclassifications Certain amounts may have been reclassified to conform to current period presentation. This reclassification had no impact on the previously reported net loss or comprehensive loss. (3) Account Receivable, Contract Assets, and Contract Liabilities Accounts Receivable <p id="xdx_899_ecustom--ScheduleOfAccountsReceivableContractAssetsAndContractLiabilitiesTableTextBlock_zwHZ2lxYwdTb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">The following provides further details on the balance sheet accounts of accounts receivable, contract assets and contract liabilities from contracts with customers: Schedule of Accounts Receivable, Contract Assets and Contract Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20240430_zs0SuZo8nSui" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230430_zIN1qYlQB7X3" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20220430_zjGqZPmcvjv8" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2022</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2022</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_405_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_zUlWe8cbH9Uf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 46%; text-align: left">Accounts receivable</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">796</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">745</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">482</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--ContractWithCustomerAssetNetCurrent_iI_pn3n3_zDfhNFBooF7h" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Contract assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">18</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">152</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">386</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--ContractWithCustomerLiabilityCurrent_iI_pn3n3_z0TTPjH4mO9j" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Contract liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">302</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,378</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">129</td><td style="text-align: left"> </td></tr> </table> Contract Assets Significant changes in the contract assets balances during the period are as follows: Schedule of Significant Changes in Contract Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_496_20230501__20240430_zgJHVmfkZwA6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20220501__20230430_zauPR7GqUqV4" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6" style="text-align: center">(in thousands)</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 id="xdx_406_ecustom--TransferredToReceivablesFromContractAssetsRecognized_iNI_pn3n3_di_msIDICWzZOT_zNoiBrxbDf9c" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Transferred to receivables from contract assets recognized during the period</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(1,879</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(1,768</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_406_ecustom--RevenueRecognizedAndNotBilled_pn3n3_maIDICWzZOT_znrWjYRtx5Fh" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Revenue recognized and not billed during the period</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,745</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,534</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--IncreaseDecreaseInContractWithCustomerAsset_iT_pn3n3_mtIDICWzZOT_zLAWtl2RKpB8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net change in contract assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(134</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(234</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table> Contract assets include unbilled amounts typically resulting from arrangements whereby the right to payment is conditional on completing additional tasks or services for a performance obligation. The decrease in contract assets from year end is primarily a result of consulting services projects for which revenue was recognized in the prior year yet billed in the current year. No impairments to contract assets were incurred during the fiscal years ended April 30, 2024 and 2023, respectively. Contract Liabilities Significant changes in the contract liabilities balances during the period are as follows: Schedule of Significant Changes in Contract Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20230501__20240430_zimvVedTU2G7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430_zNYGWxCPcOlj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_407_ecustom--ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance_iN_pn3n3_di_msIDICWz3fD_zsVRVKzrs5Hb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Revenue recognized</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(2,424</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(574</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--PaymentsCollectedForWhichRevenueHasNotBeenRecognized_pn3n3_maIDICWz3fD_zd3ItUHiFrwg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Payments collected for which revenue has not been recognized</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,348</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,823</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--IncreaseDecreaseInContractWithCustomerLiability_iT_pn3n3_mtIDICWz3fD_zGafsZb3DdI7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net change in contract liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(1,076</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,249</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Contract liabilities consist of amounts invoiced to and collected from customers in excess of revenue recognized. The decrease in contract liabilities from year end is primarily due to recognizing revenue on the DOE Phase II contract for which the Company was paid in prior periods. <p id="xdx_899_ecustom--ScheduleOfAccountsReceivableContractAssetsAndContractLiabilitiesTableTextBlock_zwHZ2lxYwdTb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">The following provides further details on the balance sheet accounts of accounts receivable, contract assets and contract liabilities from contracts with customers: Schedule of Accounts Receivable, Contract Assets and Contract Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20240430_zs0SuZo8nSui" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230430_zIN1qYlQB7X3" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20220430_zjGqZPmcvjv8" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2022</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="10" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2022</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="10" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_405_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_zUlWe8cbH9Uf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 46%; text-align: left">Accounts receivable</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">796</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">745</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">482</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--ContractWithCustomerAssetNetCurrent_iI_pn3n3_zDfhNFBooF7h" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Contract assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">18</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">152</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">386</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--ContractWithCustomerLiabilityCurrent_iI_pn3n3_z0TTPjH4mO9j" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Contract liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">302</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,378</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">129</td><td style="text-align: left"> </td></tr> </table>

796000

745000

482000

18000

152000

386000

302000

1378000

129000

Significant changes in the contract assets balances during the period are as follows: Schedule of Significant Changes in Contract Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_496_20230501__20240430_zgJHVmfkZwA6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20220501__20230430_zauPR7GqUqV4" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6" style="text-align: center">(in thousands)</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 id="xdx_406_ecustom--TransferredToReceivablesFromContractAssetsRecognized_iNI_pn3n3_di_msIDICWzZOT_zNoiBrxbDf9c" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Transferred to receivables from contract assets recognized during the period</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(1,879</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(1,768</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_406_ecustom--RevenueRecognizedAndNotBilled_pn3n3_maIDICWzZOT_znrWjYRtx5Fh" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Revenue recognized and not billed during the period</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,745</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,534</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--IncreaseDecreaseInContractWithCustomerAsset_iT_pn3n3_mtIDICWzZOT_zLAWtl2RKpB8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net change in contract assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(134</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(234</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table> 1879000 1768000 1745000 1534000

-134000

-234000

Significant changes in the contract liabilities balances during the period are as follows: Schedule of Significant Changes in Contract Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20230501__20240430_zimvVedTU2G7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430_zNYGWxCPcOlj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_407_ecustom--ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance_iN_pn3n3_di_msIDICWz3fD_zsVRVKzrs5Hb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Revenue recognized</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(2,424</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(574</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--PaymentsCollectedForWhichRevenueHasNotBeenRecognized_pn3n3_maIDICWz3fD_zd3ItUHiFrwg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Payments collected for which revenue has not been recognized</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,348</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,823</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--IncreaseDecreaseInContractWithCustomerLiability_iT_pn3n3_mtIDICWz3fD_zGafsZb3DdI7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net change in contract liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(1,076</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,249</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> 2424000 574000 1348000 1823000

-1076000

1249000

(4) Inventory The Company holds inventory related to the production of our products. Schedule of Inventory <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20240430_zy8GIBLL5oGb" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230430_zw1hNWk5KcJe" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40A_eus-gaap--InventoryRawMaterials_iI_pn3n3_maINzERb_z1GXIodlR0Ml" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Raw Materials</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">4,298</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,044</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--InventoryWorkInProcess_iI_pn3n3_maINzERb_znF4GrRhuaI1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Work in Process</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">397</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--InventoryFinishedGoods_iI_pn3n3_maINzERb_zqh4EfZr8X14" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Finished Goods</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">136</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--InventoryNet_iTI_pn3n3_mtINzERb_zUxqMECKucvl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Inventory, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">4,831</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,044</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The Company’s raw materials balance represents the majority of the inventory as the Company orders parts in quantity to fill orders. Work in process and finished products typically represent smaller portions of inventory as the Company does not historically hold finished products with the exception of assets transitioning to the lease fleet or to be shipped to a customer. The Company typically ships finished products as they are completed.

The Company holds inventory related to the production of our products. Schedule of Inventory <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20240430_zy8GIBLL5oGb" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230430_zw1hNWk5KcJe" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40A_eus-gaap--InventoryRawMaterials_iI_pn3n3_maINzERb_z1GXIodlR0Ml" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Raw Materials</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">4,298</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,044</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--InventoryWorkInProcess_iI_pn3n3_maINzERb_znF4GrRhuaI1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Work in Process</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">397</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--InventoryFinishedGoods_iI_pn3n3_maINzERb_zqh4EfZr8X14" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Finished Goods</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">136</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--InventoryNet_iTI_pn3n3_mtINzERb_zUxqMECKucvl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Inventory, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">4,831</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,044</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

4298000

1044000

397000

136000

4831000

1044000

(5) Other Current Assets Other current assets consist of the following at April 30, 2024 and 2023: Schedule of Other Current Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_491_20240430_zxfyhWTs7HAl" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_491_20230430_z7kPzcuCUkD" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_403_eus-gaap--PrepaidInsurance_iI_pn3n3_maOACzyhm_zfd40mpZStS5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Prepaid insurance</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">202</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">358</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_407_ecustom--PrepaidSoftwareAndLicenses_pn3n3_maOACzyhm_ziwbeaknifE4" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Prepaid software & licenses</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">224</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">190</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_ecustom--PrepaidSalesAndMarketing_iI_pn3n3_maOACzyhm_zSus9Jcf9U7j" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Prepaid sales & marketing</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">124</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">122</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_ecustom--PrepaidProjectCosts_iI_pn3n3_maOACzyhm_zJyZcsTmIK55" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Prepaid project costs</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">578</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">46</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_ecustom--PrepaidInventoryMaterials_iI_pn3n3_maOACzyhm_zf2NCHGXPxw" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Prepaid inventory materials</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">414</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">58</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--OtherPrepaidExpenseCurrent_iI_pn3n3_maOACzyhm_zFyvhFoiODnd" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Prepaid expenses- other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">205</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">220</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--OtherAssetsCurrent_iTI_pn3n3_mtOACzyhm_zjaAXKlInjre" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total other current assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,747</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">994</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

Other current assets consist of the following at April 30, 2024 and 2023: Schedule of Other Current Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_491_20240430_zxfyhWTs7HAl" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_491_20230430_z7kPzcuCUkD" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_403_eus-gaap--PrepaidInsurance_iI_pn3n3_maOACzyhm_zfd40mpZStS5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Prepaid insurance</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">202</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">358</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_407_ecustom--PrepaidSoftwareAndLicenses_pn3n3_maOACzyhm_ziwbeaknifE4" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Prepaid software & licenses</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">224</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">190</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_ecustom--PrepaidSalesAndMarketing_iI_pn3n3_maOACzyhm_zSus9Jcf9U7j" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Prepaid sales & marketing</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">124</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">122</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_ecustom--PrepaidProjectCosts_iI_pn3n3_maOACzyhm_zJyZcsTmIK55" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Prepaid project costs</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">578</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">46</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_ecustom--PrepaidInventoryMaterials_iI_pn3n3_maOACzyhm_zf2NCHGXPxw" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Prepaid inventory materials</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">414</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">58</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--OtherPrepaidExpenseCurrent_iI_pn3n3_maOACzyhm_zFyvhFoiODnd" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Prepaid expenses- other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">205</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">220</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--OtherAssetsCurrent_iTI_pn3n3_mtOACzyhm_zjaAXKlInjre" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total other current assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,747</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">994</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

202000

358000

224000 190000 124000 122000 578000 46000 414000 58000

205000

220000

1747000

994000

(6) Property and Equipment The components of property and equipment as of April 30, 2024 and 2023 consisted of the following: Schedule of Components of Property and Equipment <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20240430_zAQzJUttimW7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20230430_zfrpv1zJFxMb" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40D_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember_zBFjRcT053Xk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 64%">Equipment</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,530</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">783</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--ComputerEquipmentAndSoftwareMember_zD2gfy9V9e28" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Computer equipment & software</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">790</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">700</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndEquipmentMember_zycSsHqAZlr5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Office furniture & equipment</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">422</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">386</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zbddOD7bwIng" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Leasehold improvements</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">683</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">611</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedWAMVsMember_zUKKYvyg5q4i" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Leased WAM-V’s</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,547</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">371</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedBuoysMember_zDCucnGmvpL4" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Leased Buoys</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">444</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_maPPAENzI8F_zam1ngB1nXcj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Property and equipment, gross</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,416</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,851</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pn3n3_di_msPPAENzI8F_zbI7SBqUhwQ1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Less: accumulated depreciation</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,973</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,571</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_406_eus-gaap--PropertyPlantAndEquipmentNet_iTI_pn3n3_mtPPAENzI8F_zIsyhEjMdhCb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Property and equipment, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,443</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,280</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Leased WAM-V’s represent fixed assets that are associated with underlying operating leases with customers as discussed in revenue recognition section related to ASC 842. Depreciation expense was approximately $420,000 and $183,000 for years ended April 30, 2024 and 2023, respectively.

The components of property and equipment as of April 30, 2024 and 2023 consisted of the following: Schedule of Components of Property and Equipment <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20240430_zAQzJUttimW7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20230430_zfrpv1zJFxMb" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40D_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember_zBFjRcT053Xk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 64%">Equipment</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,530</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">783</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--ComputerEquipmentAndSoftwareMember_zD2gfy9V9e28" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Computer equipment & software</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">790</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">700</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureAndEquipmentMember_zycSsHqAZlr5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Office furniture & equipment</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">422</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">386</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zbddOD7bwIng" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Leasehold improvements</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">683</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">611</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedWAMVsMember_zUKKYvyg5q4i" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Leased WAM-V’s</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,547</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">371</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_hus-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--LeasedBuoysMember_zDCucnGmvpL4" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Leased Buoys</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">444</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_maPPAENzI8F_zam1ngB1nXcj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Property and equipment, gross</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,416</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,851</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pn3n3_di_msPPAENzI8F_zbI7SBqUhwQ1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Less: accumulated depreciation</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,973</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,571</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_406_eus-gaap--PropertyPlantAndEquipmentNet_iTI_pn3n3_mtPPAENzI8F_zIsyhEjMdhCb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Property and equipment, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,443</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,280</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1530000

783000

790000

700000

422000

386000

683000

611000

1547000

371000

444000

5416000

2851000

1973000

1571000

3443000

1280000

420000

183000

(7) Intangible Assets The components of intangible assets, net as of April 30, 2024 and 2023 consisted of the following: Schedule of Components of Intangible Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20240430_zMVpWKHgRKJk" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20230430_ztDHYlP4W2Ma" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_401_eus-gaap--FiniteLivedPatentsGross_iI_pn3n3_maFLIAGzcoU_zOdpE0u9Kmj9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 64%">Patents</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">2,729</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">2,729</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--FiniteLivedTrademarksGross_iI_pn3n3_maFLIAGzcoU_zRDoHk4oZs97" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Trademarks</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,769</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,769</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--FiniteLivedTradeNamesGross_iI_pn3n3_maFLIAGzcoU_zeA3VzUwqDx3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Tradename</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">130</td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--FiniteLivedCustomerRelationshipsGross_iI_pn3n3_maFLIAGzcoU_zrA7H8RwRUv1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Customer Relationships</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">150</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--FiniteLivedIntangibleAssetsGross_iTI_pn3n3_mtFLIAGzcoU_maFLIANzod8_zjVsaKAA3KC1" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Intangible assets, gross</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,498</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,778</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iNI_pn3n3_di_msFLIANzod8_zKxoT83KuHDj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Accumulated amortization</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,876</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,800</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_401_eus-gaap--FiniteLivedIntangibleAssetsNet_iTI_pn3n3_mtFLIANzod8_zmVp0akqlrW5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Intangible assets, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,622</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,978</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Amortization expense was approximately $148,000 and $158,000 for the years ended April 30, 2024 and 2023, respectively. Trademarks are not subject to amortization. Additionally, in connection with the sale of 3Dent in November of 2023, the trade-name and customer relationships were both expensed fully during the fiscal year ended April 30, 2024 under Loss on disposition of assets on the Consolidated Statements of Operations.

The components of intangible assets, net as of April 30, 2024 and 2023 consisted of the following: Schedule of Components of Intangible Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_493_20240430_zMVpWKHgRKJk" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_498_20230430_ztDHYlP4W2Ma" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_401_eus-gaap--FiniteLivedPatentsGross_iI_pn3n3_maFLIAGzcoU_zOdpE0u9Kmj9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 64%">Patents</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">2,729</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">2,729</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--FiniteLivedTrademarksGross_iI_pn3n3_maFLIAGzcoU_zRDoHk4oZs97" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Trademarks</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,769</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,769</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--FiniteLivedTradeNamesGross_iI_pn3n3_maFLIAGzcoU_zeA3VzUwqDx3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Tradename</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">130</td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--FiniteLivedCustomerRelationshipsGross_iI_pn3n3_maFLIAGzcoU_zrA7H8RwRUv1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Customer Relationships</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">150</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--FiniteLivedIntangibleAssetsGross_iTI_pn3n3_mtFLIAGzcoU_maFLIANzod8_zjVsaKAA3KC1" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Intangible assets, gross</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,498</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,778</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iNI_pn3n3_di_msFLIANzod8_zKxoT83KuHDj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Accumulated amortization</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,876</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,800</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_401_eus-gaap--FiniteLivedIntangibleAssetsNet_iTI_pn3n3_mtFLIANzod8_zmVp0akqlrW5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Intangible assets, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,622</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,978</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

2729000

2769000

130000

150000

5498000

5778000

1876000

1800000

3622000

3978000

148000

158000

(8) Goodwill Goodwill in the amount of $8.5 million was recognized in November 2021 related to the acquisition of MAR. There have been no additions to or impairment of goodwill during the years ended April 30, 2024 and 2023.

8500000

(9) Leases Lessor Information As of April 30, 2024 and 2023, the Company had five and three WAM-V’s, respectively, leased to customers which have been classified as operating leases per accounting guidance contained within ASC Topic 842, “Leases”, respectively. The remaining term on these operating leases is less than 2 years. Lessee Information Right-of-use assets 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. The Company’s operating leases consist of leases for office facilities and warehouse space. 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. 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. In February 2024, the Company extended the lease for its main headquarters in Monroe, NJ to April 30, 2026 and it was executed and recorded as an additional right of use asset and liability. The lease is classified as an operating lease and is included in right-of-use assets, right-of-use liabilities – current, and right-of-use liabilities- long-term on the Company’s Consolidated Balance Sheets. The Company also has a lease for office space located in Richmond, California. This lease commenced in April of 2023 and will continue for 62 months. The lease is classified as an operating lease and is included in right-of-use assets, right-of-use liabilities- current and right-of-use liabilities- long-term on the Company’s Consolidated Balance Sheets. Variable lease expenses, if any, are recorded as incurred. The operating lease expense in the Consolidated Statement of Operations was $0.7 million and $0.4 million for the fiscal year ended April 30, 2024 and 2023, respectively. The components of lease expense in the Consolidated Statement of Operations for the fiscal year ended April 30, 2024 and 2023 was as follows: Schedule of Operating Lease Costs <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20230501__20240430_zuXursDkUzUi" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_496_20220501__20230430_z6Fhlo0PWGO7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_409_eus-gaap--OperatingLeaseCost_pn3n3_maLCzBwM_zT3zoM7PKsgf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Operating lease cost</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">640</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">382</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--ShortTermLeaseCost_pn3n3_maLCzBwM_zsHUi7sx6nNg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Short-term lease cost</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">68</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">44</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--LeaseCost_iT_pn3n3_mtLCzBwM_zbVVPdBrHZo" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total lease cost</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">708</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">426</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Information related to the Company’s right-of use assets and lease liabilities as of April 30, 2024 is as follows: Schedule of Right-of use Assets and Lease Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_492_20240430_zS7Ufmo65m2e" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: center">(in thousands)</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-decoration: underline; text-align: left">Operating lease:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_ziOimahxT0c2" style="vertical-align: bottom; background-color: White"> <td style="width: 80%; text-align: left; padding-bottom: 1.5pt">Operating right-of-use assets, net</td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right">2,405</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_maOLLzIil_zhs8MGO9Mri2" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Right-of-use liabilities- current</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">774</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_maOLLzIil_zU5pdUmuFzrh" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Right-of-use liabilities- long term</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,798</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--OperatingLeaseLiability_iTI_pn3n3_mtOLLzIil_zZKPkCZpFJEi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Total lease liabilities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">2,572</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted average remaining lease term- operating leases</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2.98 years</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Weighted average discount rate- operating leases</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">8.4</td><td style="text-align: left">%</td></tr> </table> Total remaining lease payments under the Company’s operating leases are as follows: Schedule of Future Minimum Lease payments Under Operating Lease <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20240430_z4Pf6mBxmO58" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: center">(in thousands)</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_maLOLLPzbOq_zszZtVdcl6g5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 80%; text-align: left">2025</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,410</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_maLOLLPzbOq_znRFQCrRiZdh" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2026</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,847</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_maLOLLPzbOq_zYZ1NLHVEHKj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2027</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">329</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_maLOLLPzbOq_zqz7D9HAC194" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2028</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">333</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFive_iI_pn3n3_maLOLLPzbOq_zABpph7RUQI" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2029</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">28</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_iI_pn3n3_maLOLLPzbOq_zjGXCJ707DIf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Thereafter</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">-</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iTI_pn3n3_mtLOLLPzbOq_zZdrilkUt1E4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total future minimum lease payments</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3,947</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_zeVzMjsaeQGj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Less imputed interest</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,375</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_403_eus-gaap--OperatingLeaseLiability_iI_pn3n3_zyPaFVoFyBY3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,572</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

P2Y

700000

400000

The components of lease expense in the Consolidated Statement of Operations for the fiscal year ended April 30, 2024 and 2023 was as follows: Schedule of Operating Lease Costs <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20230501__20240430_zuXursDkUzUi" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_496_20220501__20230430_z6Fhlo0PWGO7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_409_eus-gaap--OperatingLeaseCost_pn3n3_maLCzBwM_zT3zoM7PKsgf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Operating lease cost</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">640</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">382</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--ShortTermLeaseCost_pn3n3_maLCzBwM_zsHUi7sx6nNg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Short-term lease cost</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">68</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">44</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--LeaseCost_iT_pn3n3_mtLCzBwM_zbVVPdBrHZo" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total lease cost</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">708</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">426</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

640000

382000

68000

44000

708000

426000

Information related to the Company’s right-of use assets and lease liabilities as of April 30, 2024 is as follows: Schedule of Right-of use Assets and Lease Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_492_20240430_zS7Ufmo65m2e" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: center">(in thousands)</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-decoration: underline; text-align: left">Operating lease:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_ziOimahxT0c2" style="vertical-align: bottom; background-color: White"> <td style="width: 80%; text-align: left; padding-bottom: 1.5pt">Operating right-of-use assets, net</td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right">2,405</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_maOLLzIil_zhs8MGO9Mri2" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Right-of-use liabilities- current</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">774</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_maOLLzIil_zU5pdUmuFzrh" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Right-of-use liabilities- long term</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,798</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--OperatingLeaseLiability_iTI_pn3n3_mtOLLzIil_zZKPkCZpFJEi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Total lease liabilities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">2,572</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted average remaining lease term- operating leases</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2.98 years</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Weighted average discount rate- operating leases</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">8.4</td><td style="text-align: left">%</td></tr> </table>

2405000

774000

1798000

2572000

P2Y11M23D

0.084

Total remaining lease payments under the Company’s operating leases are as follows: Schedule of Future Minimum Lease payments Under Operating Lease <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20240430_z4Pf6mBxmO58" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: center">(in thousands)</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_maLOLLPzbOq_zszZtVdcl6g5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 80%; text-align: left">2025</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,410</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_maLOLLPzbOq_znRFQCrRiZdh" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2026</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,847</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_maLOLLPzbOq_zYZ1NLHVEHKj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2027</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">329</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_maLOLLPzbOq_zqz7D9HAC194" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2028</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">333</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFive_iI_pn3n3_maLOLLPzbOq_zABpph7RUQI" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2029</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">28</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_iI_pn3n3_maLOLLPzbOq_zjGXCJ707DIf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Thereafter</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">-</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iTI_pn3n3_mtLOLLPzbOq_zZdrilkUt1E4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total future minimum lease payments</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3,947</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_zeVzMjsaeQGj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Less imputed interest</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,375</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_403_eus-gaap--OperatingLeaseLiability_iI_pn3n3_zyPaFVoFyBY3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,572</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1410000

1847000

329000

333000

28000

3947000

1375000

2572000

(10) Accrued Expenses Accrued expenses consisted of the following at April 30, 2024 and 2023: Schedule of Accrued Expenses <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20240430_zFD1iOcJGKu5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230430_zNQyhBhq2Ji4" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40E_eus-gaap--OtherEmployeeRelatedLiabilitiesCurrent_iI_pn3n3_maCzsTG_zCyBIa75TvSl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Employee incentive payments</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,271</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,948</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--AccruedSalariesCurrent_iI_pn3n3_maCzsTG_z4TBy4UQ5pLa" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrued salary and benefits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">369</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">52</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--ConstructionPayableCurrent_iI_pn3n3_maCzsTG_zYhvBZ1pFDDl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Project costs</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">181</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--OtherAccruedLiabilitiesCurrent_iI_pn3n3_maCzsTG_z5uZz3wFvdaj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">147</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">165</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--AccruedLiabilitiesCurrent_iTI_pn3n3_mtCzsTG_zKLCR3BHFkHb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Accrued expenses total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,787</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,346</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

Accrued expenses consisted of the following at April 30, 2024 and 2023: Schedule of Accrued Expenses <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20240430_zFD1iOcJGKu5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20230430_zNQyhBhq2Ji4" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr id="xdx_40E_eus-gaap--OtherEmployeeRelatedLiabilitiesCurrent_iI_pn3n3_maCzsTG_zCyBIa75TvSl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Employee incentive payments</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,271</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">1,948</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--AccruedSalariesCurrent_iI_pn3n3_maCzsTG_z4TBy4UQ5pLa" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrued salary and benefits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">369</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">52</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--ConstructionPayableCurrent_iI_pn3n3_maCzsTG_zYhvBZ1pFDDl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Project costs</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">181</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--OtherAccruedLiabilitiesCurrent_iI_pn3n3_maCzsTG_z5uZz3wFvdaj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">147</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">165</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--AccruedLiabilitiesCurrent_iTI_pn3n3_mtCzsTG_zKLCR3BHFkHb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Accrued expenses total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,787</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,346</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1271000

1948000

369000

52000

181000

147000

165000

1787000

2346000

(11) Warrants Equity Classified Warrants The underwritten public offering from April 2019 included the issuance of common stock warrants to purchase up to <span id="xdx_906_eus-gaap--ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_iI_pid_c20190430__us-gaap--SubsidiarySaleOfStockAxis__custom--UnderwrittenPublicOfferingMember_z2PWd2MKb264" title="Warrants to purchase common stock exercised">4,927,680 shares of common stock that have an exercise price of $<span id="xdx_90C_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_c20190430__us-gaap--SubsidiarySaleOfStockAxis__custom--UnderwrittenPublicOfferingMember_zuYLcbgHKeBb" title="Exercise price of warrants">3.85 per share and expire <span id="xdx_902_eus-gaap--WarrantsAndRightsOutstandingTerm_iI_dc_c20190430__us-gaap--SubsidiarySaleOfStockAxis__custom--UnderwrittenPublicOfferingMember_zUv5SjkJ6xrc" title="Warrants and rights outstanding, term">five years from the issuance date. As of April 30, 2024, common warrants to purchase 732,500 shares of the common stock had been exercised. The remaining warrants expired prior to April 30, 2024.

4927680

3.85

P5Y

732500

(12) Share-Based Compensation Plans In 2015, upon approval by the Company’s shareholders, the Company’s 2015 Omnibus Incentive Plan (the “2015 Plan”) became effective. A total of <span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_iI_c20151231__us-gaap--PlanNameAxis__custom--TwoThousandAndFifteenOmnibusIncentivePlanMember_zXQIS30MA474" title="Share-based compensation arrangement shares authorized">1,332,036 shares were 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. At subsequent shareholder meetings, including most recently in February 2024, the shareholders approved an aggregate increase to the 2015 Plan of <span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding_iI_c20240430__us-gaap--PlanNameAxis__custom--TwoThousandAndFifteenOmnibusIncentivePlanMember_zGWPQKqH3zth" title="Share-based compensation arrangement shares aggregate increase">2,900,000 shares resulting in total shares authorized for issuance of <span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_iI_c20240430__us-gaap--PlanNameAxis__custom--TwoThousandAndFifteenOmnibusIncentivePlanMember_zdS6dFgiea1b" title="Share-based compensation arrangement shares authorized">7,282,036 as of April 30, 2024. 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 <span id="xdx_902_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_iI_c20180118__us-gaap--PlanNameAxis__custom--TwoThousandAndEighteenInducementPlanMember_zl9cAeelxZI8" title="Capital shares reserved for future issuance">25,000 shares of common stock for issuance under the Inducement Plan in accordance with Rule 711(a) of the NYSE American Company Guide. On February 9, 2022, the 2018 Inducement Plan was amended to increase the authorized shares by <span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_pid_c20220209__20220209__us-gaap--PlanNameAxis__custom--TwoThousandAndEighteenInducementPlanMember_zPHirGyKW7ll" title="Share-based compensation arrangement additional shares authorized">250,000 to <span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_iI_pid_c20220209__us-gaap--PlanNameAxis__custom--TwoThousandAndEighteenInducementPlanMember_zUmBUNS4OIbj" title="Share-based compensation arrangement shares authorized">275,000. Stock Options 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 weighted average valuation assumptions. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant commensurate with the expected life of the award. The expected life (estimated period of time outstanding) of the stock options granted was estimated using the “simplified” method as permitted by the SEC’s Staff Accounting Bulletin No. 110, Share-Based Payment. Expected volatility is based on the Company’s historical volatility over the expected life of the stock option granted. There were <span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_dc_c20230501__20240430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_z7lckBSONhM3" title="Shares underlying options outstanding, granted">zero and <span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_ziF3WWhRzPgj" title="Shares underlying options outstanding, granted">601,089 shares granted for the periods ended April 30, 2024 and 2023, respectively. <p id="xdx_89F_eus-gaap--ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_zTZVyfv091W4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in"> Schedule of Stock Option Valuation Assumptions <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="font-weight: bold; text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Risk-free interest rate</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right">N/A</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right"><span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zRk5UtJLLyof" title="Risk-free interest rate">3.5</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected dividend yield</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">N/A</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zDS6rsxVlUp" title="Expected dividend yield">0.0</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Expected life (in years)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">N/A</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_909_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zcIi2ZtWSFE5" title="Expected life (in years)">5.5</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected volatility</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">N/A</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zBDh1Z1qGCt6" title="Expected volatility">109.0</td><td style="text-align: left">%</td></tr> </table> A summary of stock options under our Stock Incentive Plans is detailed in the following table. Schedule of Stock Option Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares Underlying Options</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Weighted Average Exercise Price</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Weighted Average Remaining Contractual Term (In Years)</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 46%">Outstanding as of April 30, 2023</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20230501__20240430_zYTf3JX7UX49" style="width: 14%; text-align: right" title="Shares Underlying Options Outstanding, beginning">1,529,185</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20230501__20240430_zzllMjLv7ez9" style="width: 14%; text-align: right" title="Weighted Average Exercise Price, Beginning balance">1.75</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right"><span id="xdx_905_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220501__20230430_zfs5C258G566" title="Weighted Average Remaining Contractual Term (In Years), Beginning">8.8</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20230501__20240430_zzS7N0ADymje" style="text-align: right" title="Shares underlying Options Outstanding, Granted">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_zBZDwEGAbCx8" style="text-align: right" title="Weighted Average Exercise Price, Granted">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20230501__20240430_zgLvzNOhrJJf" style="text-align: right" title="Shares Underlying Options ,Exercised">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_zKGulORO0zcg" style="text-align: right" title="Weighted Average Exercise Price, Exercised">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Cancelled/forfeited</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20230501__20240430_zrELDBs50yU3" style="text-align: right" title="Shares Underlying Options, Cancelled/forfeited">(794,369</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_z2ETq4ZqBPtf" style="text-align: right" title="Weighted Average Exercise Price, Cancelled/forfeited">1.29</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Expired</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_ecustom--StockIssuedDuringPeriodSharesStockOptionsExpired_iN_pid_di_c20230501__20240430_zeqxZrbRtgcd" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares underlying options outstanding, expired">(273</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_zv5IrGWyI3A6" style="text-align: right" title="Weighted average exercise price, expired">341.08</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Outstanding as of April 30, 2024</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20230501__20240430_zAeunBAXaOF9" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Underlying Options, ending">734,543</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20230501__20240430_zIVny1Jpw09g" style="text-align: right" title="Weighted average exercise price, ending balance">2.12</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90B_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20230501__20240430_zVxmi5C2XdNd" title="Weighted Average Remaining Contractual Term (In Years), Ending">7.6</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Exercisable as of April 30, 2024</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pid_c20240430_zu47JbikMkw5" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Underlying Options, Exercisable at Ending">462,150</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20240430_zM6whqjQ4T9c" style="text-align: right" title="Weighted Average Exercise Price, Exercisable at ending">2.85</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20230501__20240430_zf3x0cCoTSm9" title="Weighted Average Remaining Contractual Term (In Years), Exercisable at Ending">7.1</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> As of April 30, 2024, the total intrinsic value of outstanding and exercisable options was approximately <span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_pp0p0_dc_c20240430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zftvhOiazuO7" title="Intrinsic value of outstanding and exercisable options">zero. As of April 30, 2024, approximately <span id="xdx_901_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_iI_pid_c20240430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zZOVnNcV2ky" title="Options unvested">272,000 additional options were unvested, which had an intrinsic value of <span id="xdx_907_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_pp0p0_dc_c20240430__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionOneMember_zX6ITEVLC44b" title="Options, outstanding, intrinsic value">zero and a weighted average remaining contractual term of <span id="xdx_909_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_dtY_c20230501__20240430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zh2uMJuenfSg" title="Weighted average remaining contractual term">8.5 years. There was approximately $<span id="xdx_909_eus-gaap--AllocatedShareBasedCompensationExpense_pn5n6_c20230501__20240430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zCMlSVklMuf7" title="Share-based payment arrangement, expense">0.1 million and $<span id="xdx_902_eus-gaap--AllocatedShareBasedCompensationExpense_pn5n6_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zMrIEvd7Hl9" title="Share-based payment arrangement, expense">0.3 million of total recognized compensation cost related to stock options during each of the fiscal year ended April 30, 2024 and 2023, respectively. As of April 30, 2024, there was approximately $<span id="xdx_900_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_iI_pn5n6_c20240430_zeYVno9uJoP8" title="Unrecognized compensation cost related to non-vested stock">0.2 million of total unrecognized compensation cost related to non-vested stock options granted under the plans. This cost is expected to be recognized over a weighted-average period of <span id="xdx_905_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtY_c20230501__20240430_zg3wo3oRp1z4" title="Share-based compensation of weighted-average period">1.4 years. Performance Stock Options As of April 30, 2024, there were no performance stock units outstanding. As of April 30, 2023 there were <span id="xdx_90E_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_iI_pid_c20230430__us-gaap--AwardTypeAxis__us-gaap--PerformanceSharesMember_znQuyExbNZ3f" title="Options unvested">66,667 performance stock units outstanding which were all cancelled during the quarter ended July 31, 2023. There was approximately $43,000 and $108,000 of total recognized compensation cost related to performance stock options during each of the fiscal year ended April 30, 2024 and 2023, respectively. As of April 30, 2024, there was <span id="xdx_908_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_iI_do_c20240430__us-gaap--AwardTypeAxis__us-gaap--PerformanceSharesMember_z4BUfJqiTMO3" title="Total unrecognized compensation">no unrecognized compensation cost related to non-vested stock options granted under the plans. Restricted Stock Units Compensation expense for restricted stock units (“RSUs”) is generally recorded based on the market value on the date of grant and recognized ratably over the associated service and performance period. During the years ended April 30, 2024 and 2023, the Company granted <span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20230501__20240430__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zEqyowlBaDb8" title="Number of restricted shares, granted">4,439,257 and <span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zxU3UTMRElEh" title="Number of restricted shares, granted">1,608,681 shares, respectively, subject to service-based, performance, and market condition vesting requirements. <p id="xdx_898_eus-gaap--ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_zgt4V80B0kR5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">A summary of unvested restricted stock units under our stock incentive plans is as follows: Schedule of Non-vested Restricted Stock Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Number of Shares</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Weighted Average Price per Share</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Issued and unvested at April 30, 2023</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zGSBXdk9juW5" style="width: 14%; text-align: right" title="Number of Shares, Unvested, Beginning">1,985,994</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iS_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zTZGTG2ACxe1" style="width: 14%; text-align: right" title="Weighted Average Price per Share, Unvested, Beginning">0.91</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zA6WFBeciMEd" style="text-align: right" title="Number of Shares, Unvested, Granted">4,439,257</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zSvOWjQgNcH2" style="text-align: right" title="Weighted Average Price per Share, Unvested, Granted">0.30</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Vested and issued</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_iN_pid_di_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_z5hUMQljtgH" style="text-align: right" title="Number of Shares, Unvested, Vested and issued">(787,498</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zIqWuR9VlBYe" style="text-align: right" title="Weighted Average Price per Share, Unvested, Vested">0.86</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Cancelled/forfeited</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_iN_pid_di_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zMgBURcVJmE1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Number of Shares, Cancelled/forfeited">(513,224</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_z7ISikLL0qVf" style="text-align: right" title="Weighted Average Price per Share, Cancelled/forfeited">0.90</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Issued and unvested at April 30, 2024</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_z3f1T9sQ1Ghd" style="border-bottom: Black 2.5pt double; text-align: right" title="Number of Shares, Unvested, Ending">5,124,529</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iE_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zjYHhTMcuGA" style="text-align: right" title="Weighted Average Price per Share, Unvested, Ending">0.38</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> There was approximately $<span id="xdx_905_eus-gaap--AllocatedShareBasedCompensationExpense_pn5n6_c20230501__20240430__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z2zz3BFyucG9" title="Share-based payment arrangement, expense">1.0 million and $<span id="xdx_906_eus-gaap--AllocatedShareBasedCompensationExpense_pn5n6_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z6y37D4cH2V2" title="Share-based payment arrangement, expense">1.1 million of total recognized compensation cost related to restricted stock units for the years ended April 30, 2024 and 2023, respectively. As of April 30, 2024, there was $<span id="xdx_905_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_iI_pn5n6_c20240430__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zTmUkaLMJ9rb" title="Unrecognized compensation cost">1.4 million of 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 <span id="xdx_904_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtY_c20230501__20240430__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zhfzRk3NBz3c" title="Share-based compensation of weighted-average period">1.5 years.

1332036

2900000

7282036

25000

250000

275000

601089

<p id="xdx_89F_eus-gaap--ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_zTZVyfv091W4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in"> Schedule of Stock Option Valuation Assumptions <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fiscal year ended April 30,</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="font-weight: bold; text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Risk-free interest rate</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right">N/A</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right"><span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zRk5UtJLLyof" title="Risk-free interest rate">3.5</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected dividend yield</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">N/A</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zDS6rsxVlUp" title="Expected dividend yield">0.0</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Expected life (in years)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">N/A</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_909_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zcIi2ZtWSFE5" title="Expected life (in years)">5.5</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected volatility</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">N/A</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20220501__20230430__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zBDh1Z1qGCt6" title="Expected volatility">109.0</td><td style="text-align: left">%</td></tr> </table>

0.035

0.000

P5Y6M

1.090

A summary of stock options under our Stock Incentive Plans is detailed in the following table. Schedule of Stock Option Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares Underlying Options</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Weighted Average Exercise Price</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Weighted Average Remaining Contractual Term (In Years)</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 46%">Outstanding as of April 30, 2023</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20230501__20240430_zYTf3JX7UX49" style="width: 14%; text-align: right" title="Shares Underlying Options Outstanding, beginning">1,529,185</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20230501__20240430_zzllMjLv7ez9" style="width: 14%; text-align: right" title="Weighted Average Exercise Price, Beginning balance">1.75</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right"><span id="xdx_905_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220501__20230430_zfs5C258G566" title="Weighted Average Remaining Contractual Term (In Years), Beginning">8.8</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20230501__20240430_zzS7N0ADymje" style="text-align: right" title="Shares underlying Options Outstanding, Granted">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_zBZDwEGAbCx8" style="text-align: right" title="Weighted Average Exercise Price, Granted">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20230501__20240430_zgLvzNOhrJJf" style="text-align: right" title="Shares Underlying Options ,Exercised">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_zKGulORO0zcg" style="text-align: right" title="Weighted Average Exercise Price, Exercised">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Cancelled/forfeited</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20230501__20240430_zrELDBs50yU3" style="text-align: right" title="Shares Underlying Options, Cancelled/forfeited">(794,369</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_z2ETq4ZqBPtf" style="text-align: right" title="Weighted Average Exercise Price, Cancelled/forfeited">1.29</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Expired</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_ecustom--StockIssuedDuringPeriodSharesStockOptionsExpired_iN_pid_di_c20230501__20240430_zeqxZrbRtgcd" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares underlying options outstanding, expired">(273</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_pid_c20230501__20240430_zv5IrGWyI3A6" style="text-align: right" title="Weighted average exercise price, expired">341.08</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Outstanding as of April 30, 2024</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20230501__20240430_zAeunBAXaOF9" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Underlying Options, ending">734,543</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20230501__20240430_zIVny1Jpw09g" style="text-align: right" title="Weighted average exercise price, ending balance">2.12</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90B_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20230501__20240430_zVxmi5C2XdNd" title="Weighted Average Remaining Contractual Term (In Years), Ending">7.6</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Exercisable as of April 30, 2024</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pid_c20240430_zu47JbikMkw5" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Underlying Options, Exercisable at Ending">462,150</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20240430_zM6whqjQ4T9c" style="text-align: right" title="Weighted Average Exercise Price, Exercisable at ending">2.85</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20230501__20240430_zf3x0cCoTSm9" title="Weighted Average Remaining Contractual Term (In Years), Exercisable at Ending">7.1</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1529185

1.75

P8Y9M18D

794369

1.29

273

341.08

734543

2.12

P7Y7M6D

462150

2.85

P7Y1M6D

272000

P8Y6M

100000

300000

200000

P1Y4M24D

66667

43000

108000

4439257

1608681

<p id="xdx_898_eus-gaap--ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_zgt4V80B0kR5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">A summary of unvested restricted stock units under our stock incentive plans is as follows: Schedule of Non-vested Restricted Stock Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Number of Shares</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Weighted Average Price per Share</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Issued and unvested at April 30, 2023</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zGSBXdk9juW5" style="width: 14%; text-align: right" title="Number of Shares, Unvested, Beginning">1,985,994</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iS_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zTZGTG2ACxe1" style="width: 14%; text-align: right" title="Weighted Average Price per Share, Unvested, Beginning">0.91</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zA6WFBeciMEd" style="text-align: right" title="Number of Shares, Unvested, Granted">4,439,257</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zSvOWjQgNcH2" style="text-align: right" title="Weighted Average Price per Share, Unvested, Granted">0.30</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Vested and issued</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_iN_pid_di_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_z5hUMQljtgH" style="text-align: right" title="Number of Shares, Unvested, Vested and issued">(787,498</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zIqWuR9VlBYe" style="text-align: right" title="Weighted Average Price per Share, Unvested, Vested">0.86</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Cancelled/forfeited</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_iN_pid_di_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zMgBURcVJmE1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Number of Shares, Cancelled/forfeited">(513,224</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_z7ISikLL0qVf" style="text-align: right" title="Weighted Average Price per Share, Cancelled/forfeited">0.90</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Issued and unvested at April 30, 2024</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_z3f1T9sQ1Ghd" style="border-bottom: Black 2.5pt double; text-align: right" title="Number of Shares, Unvested, Ending">5,124,529</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iE_pid_c20230501__20240430__us-gaap--AwardTypeAxis__custom--NonVestedRestrictedStockMember_zjYHhTMcuGA" style="text-align: right" title="Weighted Average Price per Share, Unvested, Ending">0.38</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1985994

0.91

4439257

0.30

787498

0.86

513224

0.90

5124529

0.38

1000000.0

1100000

1400000

P1Y6M

(13) Fair Value Measurements ASC Topic 820, “Fair Value Measurements” 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. <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.75in">Level 1 </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">Unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif">Level 2 </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">Inputs other than quoted prices in active markets that are observable for the asset or liability, either directly or indirectly.</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif">Level 3 </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">Inputs that are unobservable for the asset or liability.</td></tr> </table> Disclosure of Fair Values The Company’s financial instruments that are not re-measured at fair value include cash, cash equivalents, restricted cash, accounts receivable, other assets, contract assets and liabilities, deposits, accounts payable, and accrued expenses. The carrying value is equal to their fair value due to the short term nature of these accounts. Additionally, there was a Level 3 contingent liability related to earnout payable as part of the MAR acquisition in the amount of $<span id="xdx_906_eus-gaap--BusinessCombinationContingentConsiderationLiability_iI_pn5n6_c20230430__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_z8n4n6Zwh5O6" title="Contingent liability MAR acquisition amount">1.2 million as of April 30, 2023. The fair value of this contingent liability was remeasured to its fair value and reclassified to Earn Out Payable at the end of the second earn out period on April 30, 2024. The change in fair value upon remeasurement of approximately $<span id="xdx_905_ecustom--IncreaseDecreaseInContingentLiability_pn5n6_c20230501__20240430__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zZDcN5uSLNDk" title="Changes in contingent liability">0.1 million and $<span id="xdx_90B_ecustom--IncreaseDecreaseInContingentLiability_pn5n6_c20220501__20230430__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zjq91PzFqGP7" title="Changes in contingent liability">1.1 million was recognized in the consolidated statement of operations for the fiscal years ended April 30, 2024 and 2023, respectively. Transfers into or out of any hierarchy level are recognized at the end of the reporting period in which the transfers occurred.

1200000

100000 1100000

(14) Income Taxes <p id="xdx_895_eus-gaap--ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_zfhPi2leQf4h" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">Loss before income taxes for the years ended April 30, 2024 and 2023 consisted of the following components: Schedule of Components of Loss Before Income Taxes <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20230501__20240430_z8Ig4iY3k6xi" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430_zmqH7vda3Bd5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td> </td></tr> <tr id="xdx_408_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_pn3n3_maILFCOzq5R_zGwryM4zZUhl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 64%">Domestic</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(28,737</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(26,578</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_pn3n3_maILFCOzq5R_zh73CK621j43" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Foreign</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">-</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(26</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_iT_pn3n3_mtILFCOzq5R_zHfRTRZM9V99" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Total loss before income taxes</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(28,737</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(26,604</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table> The income tax benefit for the years ended April 30, 2024 and 2023 consisted of $1.3 million and $0.3 million, respectively, from the sale of New Jersey net operating losses and research and development credits. Tax Rate Reconciliation The effective income tax rate differed from the percentages computed by applying the U.S. federal income tax rate for the periods ended April 30, 2024 and 2023 to loss before income taxes as a result of the following: Schedule of Effective Income Tax Rate Reconciliation <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_496_20230501__20240430_zTgvHifut6jb" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49F_20220501__20230430_zWl3FCPhZxB7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_400_eus-gaap--EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_iN_pid_dpi_uPure_maA30M10_zPNby4mRqghh" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Computed expected tax benefit</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right">(21.0</td><td style="width: 1%; text-align: left">)%</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right">(21.0</td><td style="width: 1%; text-align: left">)%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Increase (reduction) in income taxes resulting from:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_pid_dp_uPure_maA30M10_zXNuywbARufi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">State income taxes, net of federal benefit</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(3.5</td><td style="text-align: left">)%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">4.0</td><td style="text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_pid_dp_uPure_msA30M10_zlKQcNwzHwF2" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Federal research and development tax credits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1.1</td><td style="text-align: left">)%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1.9</td><td style="text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_pid_dp_uPure_maA30M10_z6hX4OzMKrP8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Foreign rate differential</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left">%</td></tr> <tr id="xdx_401_eus-gaap--EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_pid_dp_uPure_maA30M10_znoqzfJcl0h7" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Other non-deductible expenses</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">0.4</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1.1</td><td style="text-align: left">)%</td></tr> <tr id="xdx_405_ecustom--EffectiveIncomeTaxReconciliationProceedsOfSaleOfNewJerseyTaxBenefits_pid_dp_uPure_maA30M10_z7L6O5o1WqKj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Proceeds of sale of New Jersey tax benefits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(3.4</td><td style="text-align: left">)%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(7.0</td><td style="text-align: left">)%</td></tr> <tr id="xdx_401_eus-gaap--EffectiveIncomeTaxRateReconciliationOtherAdjustments_pid_dp_uPure_maA30M10_zIJCjdo8yO92" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Other</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">4.5</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1.3</td><td style="text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_pid_dp_uPure_maA30M10_zwsYwNT5P385" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Increase in valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">19.8</td><td style="padding-bottom: 1.5pt; text-align: left">%</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">22.9</td><td style="padding-bottom: 1.5pt; text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_iT_pid_dp_mtA30M10_zFnvx6HttNFd" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Income tax (benefit)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">(4.3</td><td style="padding-bottom: 2.5pt; text-align: left">)%</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">1.0</td><td style="padding-bottom: 2.5pt; text-align: left">%</td></tr> </table> Significant Components of Deferred Taxes The tax effects of temporary differences and carry forwards that give rise to the Company’s deferred tax assets and deferred tax liabilities are presented below. Schedule of Deferred Tax Assets and Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20240430_z4Ny0a91NV3f" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20230430_zH4VZljnKXib" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred tax assets:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsDomestic_iI_pn3n3_maDTAGzon3_zKlcrAmqZ3ea" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; width: 64%; text-align: left">Federal net operating loss carryforwards</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">48,745</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">43,788</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsForeign_iI_pn3n3_maDTAGzon3_zIL1Qdxh8gP3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Foreign net operating loss carryforwards</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,059</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,059</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_iI_pn3n3_maDTAGzon3_zS28vmpe1Sll" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">State operating loss carryforwards</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,934</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,578</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--DeferredTaxAssetsTaxCreditCarryforwardsResearch_iI_pn3n3_maDTAGzon3_zNZCpRRSz3T" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Federal and New Jersey research and development tax credits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,404</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,143</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_iI_pn3n3_maDTAGzon3_zKsoHWLgboe" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Stock compensation</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">470</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">662</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_iI_pn3n3_maDTAGzon3_zFqBcGDbPXL4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Accrued expenses</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">312</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">474</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsOther_iI_pn3n3_maDTAGzon3_z3n0P0SrlSx5" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">2,578</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,977</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--DeferredTaxAssetsGross_iTI_pn3n3_mtDTAGzon3_maDTANzeHh_zOkQnh8Bdxvf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Net deferred tax assets before valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">61,502</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">55,681</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsValuationAllowance_iNI_pn3n3_di_msDTANzeHh_z9Eujra96me6" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Valuation allowance</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(60,322</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(54,644</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> <tr id="xdx_403_eus-gaap--DeferredTaxAssetsNet_iTI_pn3n3_mtDTANzeHh_maDTALNzpXd_zbUYKy1mOBo9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Deferred tax assets</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,180</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,037</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Deferred tax liabilities:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_iI_pn3n3_msDTALNzpXd_zHR1T3vmteyi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Intangibles</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">793</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">792</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--DeferredTaxLiabilitiesOtherLiabilities_iI_pn3n3_msDTALNzpXd_zd5k7f0WmFKj" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Lease liabilities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">590</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">448</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--DeferredTaxAssetsLiabilitiesNet_iNTI_pn3n3_di_mtDTALNzpXd_zbDFCxrRdN1e" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 20pt; text-align: left; padding-bottom: 2.5pt">Net deferred tax liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(203</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(203</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table> In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences and carry forwards become deductible or are utilized. As of April 30, 2024 and 2023, based upon the level of historical taxable losses, valuation allowances of $60.3 million and $54.6 million, respectively, were recorded to fully offset deferred tax assets. The valuation allowance increased $5.7 million during the year ended April 30, 2024 and increased $7.0 million during the year ended 2023 respectively, due to continuing net operating losses. As of April 30, 2024, the Company had net operating loss carry forwards for federal income tax purposes of approximately $231.4 million, which begin to expire in fiscal 2024; $97.9 million of the federal carryforward has no expiration, but the deductibility of such federal net operating losses may be limited to 80% of our taxable income in future years. The Company also had federal research and development tax credit carry forwards of approximately $<span id="xdx_905_eus-gaap--TaxCreditCarryforwardAmount_iI_pn5n6_c20240430__us-gaap--IncomeStatementLocationAxis__us-gaap--ResearchAndDevelopmentExpenseMember_zDILcBKIeGH2" title="Tax credit carryforward, amount">4.3 million as of April 30, 2024, which begins to expire in 2024. The Tax Reform Act of 1986 contains provisions that limit the utilization of net operating loss and tax credit carry forwards if there has been an ownership change, as defined. The Company has determined that as a result of multiple ownership changes, as described in Section 382 of the Internal Revenue Code, its ability to utilize these NOL’s and research and development tax credit have been significantly limited. In addition, as of April 30, 2024, the Company had state net operating loss carry forwards of approximately $27.7 million which <span id="xdx_907_eus-gaap--OperatingLossCarryforwardsLimitationsOnUse_c20230501__20240430__us-gaap--IncomeTaxAuthorityAxis__us-gaap--StateAndLocalJurisdictionMember_z7mbAQfULC2a" title="Operating loss carryforwards, expiration description">begin to expire in 2042, which also may be limited to utilization limitations. Further, as of April 30, 2024, the Company had foreign net operating loss carry forwards of approximately $10.8 million. The ability to utilize these carry forwards may also be limited due to ownership changes. Income Tax Benefit The Company has sold New Jersey State net operating losses and research development credits under the New Jersey Economic Development Authority Tax Transfer programs, which has resulted in $1.3 million and $0.3 million of tax benefit related to the fiscal year ended April 30, 2024 and 2023, respectively, from the sale of New Jersey net operating losses and research and development credits. New Jersey-based technology or biotechnology companies with fewer than 225 US employees may be eligible to sell net operating losses and research and development tax credits to unaffiliated corporations, up to a maximum lifetime benefit of $<span id="xdx_902_eus-gaap--IncomeTaxReconciliationNondeductibleExpenseResearchAndDevelopment_pn5n6_c20230501__20240430__srt--RangeAxis__srt--MaximumMember_zUOgcddUcE1i" title="Income tax benefit, research and development expense">20.0 million per business. Uncertain Tax Positions 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 the Company’s Spanish branch was closed. At April 30, 2024 and 2023, 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 fiscal year, related to examinations or uncertain tax positions. 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 after utilization. The Company does not have any interest or penalties accrued related to uncertain tax positions as it does not have any unrecognized tax benefits.

<p id="xdx_895_eus-gaap--ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_zfhPi2leQf4h" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">Loss before income taxes for the years ended April 30, 2024 and 2023 consisted of the following components: Schedule of Components of Loss Before Income Taxes <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20230501__20240430_z8Ig4iY3k6xi" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20220501__20230430_zmqH7vda3Bd5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td> </td></tr> <tr id="xdx_408_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_pn3n3_maILFCOzq5R_zGwryM4zZUhl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; width: 64%">Domestic</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(28,737</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">(26,578</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_pn3n3_maILFCOzq5R_zh73CK621j43" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Foreign</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">-</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(26</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_iT_pn3n3_mtILFCOzq5R_zHfRTRZM9V99" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Total loss before income taxes</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(28,737</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(26,604</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table>

-28737000

-26578000

-26000

-28737000

-26604000

1300000

300000

The effective income tax rate differed from the percentages computed by applying the U.S. federal income tax rate for the periods ended April 30, 2024 and 2023 to loss before income taxes as a result of the following: Schedule of Effective Income Tax Rate Reconciliation <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_496_20230501__20240430_zTgvHifut6jb" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49F_20220501__20230430_zWl3FCPhZxB7" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_400_eus-gaap--EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_iN_pid_dpi_uPure_maA30M10_zPNby4mRqghh" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; text-align: left">Computed expected tax benefit</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right">(21.0</td><td style="width: 1%; text-align: left">)%</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 14%; text-align: right">(21.0</td><td style="width: 1%; text-align: left">)%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Increase (reduction) in income taxes resulting from:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_pid_dp_uPure_maA30M10_zXNuywbARufi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">State income taxes, net of federal benefit</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(3.5</td><td style="text-align: left">)%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">4.0</td><td style="text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_pid_dp_uPure_msA30M10_zlKQcNwzHwF2" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Federal research and development tax credits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1.1</td><td style="text-align: left">)%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1.9</td><td style="text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_pid_dp_uPure_maA30M10_z6hX4OzMKrP8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Foreign rate differential</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left">%</td></tr> <tr id="xdx_401_eus-gaap--EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_pid_dp_uPure_maA30M10_znoqzfJcl0h7" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Other non-deductible expenses</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">0.4</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1.1</td><td style="text-align: left">)%</td></tr> <tr id="xdx_405_ecustom--EffectiveIncomeTaxReconciliationProceedsOfSaleOfNewJerseyTaxBenefits_pid_dp_uPure_maA30M10_z7L6O5o1WqKj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Proceeds of sale of New Jersey tax benefits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(3.4</td><td style="text-align: left">)%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(7.0</td><td style="text-align: left">)%</td></tr> <tr id="xdx_401_eus-gaap--EffectiveIncomeTaxRateReconciliationOtherAdjustments_pid_dp_uPure_maA30M10_zIJCjdo8yO92" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Other</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">4.5</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1.3</td><td style="text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_pid_dp_uPure_maA30M10_zwsYwNT5P385" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Increase in valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">19.8</td><td style="padding-bottom: 1.5pt; text-align: left">%</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">22.9</td><td style="padding-bottom: 1.5pt; text-align: left">%</td></tr> <tr id="xdx_407_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_iT_pid_dp_mtA30M10_zFnvx6HttNFd" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Income tax (benefit)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">(4.3</td><td style="padding-bottom: 2.5pt; text-align: left">)%</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">1.0</td><td style="padding-bottom: 2.5pt; text-align: left">%</td></tr> </table>

0.210

-0.035

0.040

-0.011

0.019

0.004

-0.011

-0.034 -0.070

0.045

0.013

0.198

0.229

-0.043

0.010

The tax effects of temporary differences and carry forwards that give rise to the Company’s deferred tax assets and deferred tax liabilities are presented below. Schedule of Deferred Tax Assets and Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20240430_z4Ny0a91NV3f" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td><td style="text-align: center; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20230430_zH4VZljnKXib" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="6" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred tax assets:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsDomestic_iI_pn3n3_maDTAGzon3_zKlcrAmqZ3ea" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; width: 64%; text-align: left">Federal net operating loss carryforwards</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">48,745</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 14%; text-align: right">43,788</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsForeign_iI_pn3n3_maDTAGzon3_zIL1Qdxh8gP3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Foreign net operating loss carryforwards</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,059</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,059</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_iI_pn3n3_maDTAGzon3_zS28vmpe1Sll" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">State operating loss carryforwards</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,934</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,578</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--DeferredTaxAssetsTaxCreditCarryforwardsResearch_iI_pn3n3_maDTAGzon3_zNZCpRRSz3T" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Federal and New Jersey research and development tax credits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,404</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5,143</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_iI_pn3n3_maDTAGzon3_zKsoHWLgboe" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Stock compensation</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">470</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">662</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_iI_pn3n3_maDTAGzon3_zFqBcGDbPXL4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Accrued expenses</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">312</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">474</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsOther_iI_pn3n3_maDTAGzon3_z3n0P0SrlSx5" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">2,578</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,977</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--DeferredTaxAssetsGross_iTI_pn3n3_mtDTAGzon3_maDTANzeHh_zOkQnh8Bdxvf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Net deferred tax assets before valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">61,502</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">55,681</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsValuationAllowance_iNI_pn3n3_di_msDTANzeHh_z9Eujra96me6" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Valuation allowance</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(60,322</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(54,644</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> <tr id="xdx_403_eus-gaap--DeferredTaxAssetsNet_iTI_pn3n3_mtDTANzeHh_maDTALNzpXd_zbUYKy1mOBo9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Deferred tax assets</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,180</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,037</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Deferred tax liabilities:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_iI_pn3n3_msDTALNzpXd_zHR1T3vmteyi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Intangibles</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">793</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">792</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--DeferredTaxLiabilitiesOtherLiabilities_iI_pn3n3_msDTALNzpXd_zd5k7f0WmFKj" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Lease liabilities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">590</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">448</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--DeferredTaxAssetsLiabilitiesNet_iNTI_pn3n3_di_mtDTALNzpXd_zbDFCxrRdN1e" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 20pt; text-align: left; padding-bottom: 2.5pt">Net deferred tax liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(203</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(203</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table>

48745000

43788000

2059000

1934000

1578000

5404000

5143000

470000

662000

312000

474000

2578000

1977000

61502000

55681000

60322000

54644000

1180000

1037000

793000

792000

590000 448000

203000

60300000

54600000

5700000

7000000.0

231400000

begin to expire in fiscal 2024 97900000

the deductibility of such federal net operating losses may be limited to 80% of our taxable income in future years.

4300000

27700000

begin to expire in 2042, which also may be limited to utilization limitations.

10800000

1300000

300000

20000000.0

(15) Commitments and Contingencies Spain Income Tax Audit The Company underwent an income tax audit in Spain for the period from 2011 to 2014, when its Spanish branch was closed. On July 30, 2018, the Spanish tax 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. During the year ended April 30, 2022, the Company received notice from the Spanish Central Economic and Administrative Tribunal (“Spanish Tax Administration”) that it agreed with the inspector and ruled that the Company owes the full amount of the penalty in the amount of €<span id="xdx_90C_eus-gaap--IncomeTaxExaminationPenaltiesAndInterestAccrued_iI_uEuro_c20220430__us-gaap--IncomeTaxAuthorityNameAxis__us-gaap--TaxAuthoritySpainMember_zYSVq9w1eDkf" title="Income tax penalties">279,870 or approximately $331,000. On January 25, 2021, the Company paid the Spanish Tax Administration €279,870. Notwithstanding that payment, on April 30, 2022, the Company filed its appeal of the decision of the Central Court to the Spanish National Court. The Company expects results of the appeal.to conclude during fiscal year 2025. Litigation with Paragon Technologies, Inc. On June 16, 2023, Paragon Technologies, Inc., a Delaware corporation that is an activist investor and a stockholder of the Company (“Paragon”), informed the Company that Paragon was planning a proxy contest against the Company and intended to nominate candidates for election to the Company Board of Directors (the “OPT Board”) at the Company’s 2023 Annual Meeting (the “2023 Annual Meeting”). Subsequently, Paragon disclosed its intention to replace a majority of the six-member OPT Board with initially five purported nominees, including three members of the Paragon Board of Directors, and, thereby, seek control of the Company. In furtherance of Paragon’s threatened agenda, Paragon brought three litigation matters against the Company in the Delaware Court of Chancery. <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"> </td> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in">(a)</td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">(Del. Code §220 Complaint) On July 27, 2023, Paragon filed a complaint in the Court of Chancery of the State of Delaware against the Company seeking to compel the inspection of certain books and records of the Company pursuant to 8 Del. Code § 220. On January 31, 2024, the Court issued a ruling for the Company to deliver certain books and records to Paragon, and the books and records that were subject to the Court’s final order were produced to Paragon on April 8, 2024. No additional activity has occurred.</td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"> </td> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in">(b)</td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">(Breach of Fiduciary Duties Complaint) On October 10, 2023, Paragon filed an additional complaint in the Court of Chancery of the State of Delaware against the Company, and the members of its Board of Directors, claiming certain breaches of their fiduciary duties. The complaint sought only injunctive relief against the Company, and not monetary damages, and therefore the financial exposure derived therein was limited to applicable legal fee and costs at that stage, which was material to FY’ 24. On November 2, 2023, Paragon sought leave to amend its complaint to add additional claims. The Court granted this motion for leave to amend, provided that the Court would not delay the hearing on the matters raised in the initial complaint, which was set for November 28, 2023. This hearing on the initial complaint was held and on November 30, 2023, the Court ruled in favor of the Company and denied Paragon’s motion for injunctive relief. The status of the in the amended complaint is still pending. On February 28, 2024, the Company successfully finalized its 2023 annual meeting of stockholders in spite of Paragon’s repeated attempts to contest the meeting. On July 10, 2024, the Company requested Paragon’s counsel to dismiss this litigation, given there has been no activity for 6 months. We are awaiting a response.</td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"> </td> <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">(Del. Code §225 Complaint) On April 11, 2024, Paragon filed an action in the Delaware Court of Chancery against the Company, and the members of its Board of Directors, challenging the results of the 2023 Annual Meeting (concluded on February 28, 2024), alleging that a quorum was not present for the meeting. On May 7, 2024, the Company filed its answer, including that the Final Report of the Inspector of Election (which Paragon selected) confirmed that a quorum was present. On June 20, 2024, Paragon filed a Motion to Dismiss the case “without prejudice.” On June 28, 2024, the Company responded to Paragon’s Motion to Dismiss, claiming that the case should be dismissed: (a) “with prejudice”; or (b) “without prejudice,” but in such event Paragon should reimburse OPT’s fees and costs for defending the case.</td></tr> </table> As clearly evidenced by the above, Paragon has filed three lawsuits against the OPT Board and the Company in an effort to seek control of the Company, without following appropriate governance standards and without offering fair value to the stockholders. In addition, Sham Gad, the CEO of Paragon has also maintained in public that the nature of Paragon’s proposed investment in the Company was “non-dilutive.” To that point, on April 24, 2024, Paragon made the following “non-dilutive $3MM preferred stock” offer to the Company: “...The preferred would have the option to be convertible to common stock, at $0.05 a share, or 25% of the 30-day average trading price, whichever is higher...”. After the Board correctly rejected the $3MM preferred stock offer, on June 7, 2024, Paragon issued a press release that proclaimed its offer was non-dilutive. In fact, Paragon’s offer was highly dilutive because the offer stipulated that the proposed OPT preferred stock to be issued to Paragon would be convertible to OPT common stock at a 75% discount to the fair market value of the common stock. The Paragon offer thus essentially amounted to a change in control of the Company at 25% of its fair market value. In order to defend the best interests of the Company’s shareholders against Paragon’s lawsuits and public statements, the Company has spent approximately $3.9 million in fees and costs. General Legal Matters From time to time, the Company is involved in legal and administrative proceedings and claims of various types. The Company records a liability in its consolidated financial statements for these matters when a loss is known or considered probable and the amount can be reasonably estimated. The Company reviews these estimates each accounting period as additional information is known and adjusts the loss provision when appropriate. If a matter is both probable to result in a liability and the amounts of loss can be reasonably estimated, the Company estimates and discloses the possible loss or range of loss to the extent necessary to make the consolidated financial statements not misleading. If the loss is not probable or cannot be reasonably estimated, a liability is not recorded in its consolidated financial statements.

279870

331000

279870

on April 24, 2024, Paragon made the following “non-dilutive $3MM preferred stock” offer to the Company: “...The preferred would have the option to be convertible to common stock, at $0.05 a share, or 25% of the 30-day average trading price, whichever is higher...”. After the Board correctly rejected the $3MM preferred stock offer, on June 7, 2024, Paragon issued a press release that proclaimed its offer was non-dilutive. In fact, Paragon’s offer was highly dilutive because the offer stipulated that the proposed OPT preferred stock to be issued to Paragon would be convertible to OPT common stock at a 75% discount to the fair market value of the common stock. The Paragon offer thus essentially amounted to a change in control of the Company at 25% of its fair market value.

3900000

(16) Operating Segments and Geographic Information The Company’s business consists of one segment as the revenue associated with its different business lines are not material enough to justify segment reporting or to make it meaningful to investors, and our chief operating decision maker does not view the Company’s operations on a segment basis. The Company operates on a worldwide basis with one operating company in the U.S. and one operating subsidiary in the UK. Revenue and expenses are generally attributed to the operating unit that bills the customers. Geographic information is as follows: <p id="xdx_893_eus-gaap--ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock_zfyNVWIWHNic" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in"> Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="14" style="border-bottom: Black 1.5pt solid; text-align: center">Year Ended April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">North & South America</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Europe</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Asia and Australia</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="14" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 36%; text-align: left">Revenue from external customers</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zlnzRk1fFgth" style="width: 12%; text-align: right" title="Revenues from external customers">5,278</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zYD7qdd4JLCh" style="width: 12%; text-align: right" title="Revenues from external customers"> 247</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zjYiPAbijral" style="width: 12%; text-align: right" title="Revenues from external customers">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zQiX26v4bPfe" style="width: 12%; text-align: right" title="Revenues from external customers">5,525</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating (loss) income</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zIiBnjiPHBG3" style="text-align: right" title="Operating (loss) income">(29,548</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zDmmeDPpeVz7" style="text-align: right" title="Operating (loss) income">217</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zELPSYOnXAri" style="text-align: right" title="Operating (loss) income">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zGY4VkXxIz76" style="text-align: right" title="Operating (loss) income">(29,331</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Right-of-use assets, net</td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zKtZmhGOFAHk" style="text-align: right" title="Right of use assets">2,405</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zzeOiBzyhn3e" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zkmBY3vlVaAd" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z8isHbojf2F7" style="text-align: right" title="Right of use assets">2,405</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Long-lived assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zQjk9wiYF1z6" style="text-align: right" title="Long-lived assets">3,443</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zUx74lRyMqNd" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zjIrGX9fs0Kh" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zV2MTlrj59Uk" style="text-align: right" title="Long-lived assets">3,443</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--Assets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zYiGwfzvQzz6" style="text-align: right" title="Total assets">28,704</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--Assets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zdUrJWbNe2Bg" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--Assets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zinEu7JeZLm8" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--Assets_iI_pn3n3_c20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zxpA87V5rsj6" style="text-align: right" title="Total assets">28,704</td><td style="text-align: left"> </td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="14" style="border-bottom: Black 1.5pt solid; text-align: center">Year Ended April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">North & South America</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Europe</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Asia and Australia</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="14" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 36%; text-align: left">Revenue from external customers</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zh3pKLjELsJ1" style="width: 12%; text-align: right" title="Revenues from external customers">2,389</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zmyh4afXVAX1" style="width: 12%; text-align: right" title="Revenues from external customers">90</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zu7Q7SkGSrCa" style="width: 12%; text-align: right" title="Revenues from external customers">253</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zFRkgX2HtnPk" style="width: 12%; text-align: right" title="Revenues from external customers">2,732</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating (loss) income</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zPgxQdW2hUn" style="text-align: right" title="Operating (loss) income">(29,271</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_znKs9VLLK9o5" style="text-align: right" title="Operating (loss) income">6</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zS5u3pjRUj43" style="text-align: right" title="Operating (loss) income">49</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zIjr6w1LHZL9" style="text-align: right" title="Operating (loss) income">(29,216</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Right-of-use assets, net</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z12diAwgAe" style="text-align: right" title="Right of use assets">1,751</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zbbD3aHxkrag" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zNczq2JAAyBb" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zejv9YlIE4V1" style="text-align: right" title="Right of use assets">1,751</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Long-lived assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zFCuq3r5l8Og" style="text-align: right" title="Long-lived assets">1,280</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zk7bShw7CF1i" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zI4FGUzF8yYk" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zDHfY2JDOYmj" style="text-align: right" title="Long-lived assets">1,280</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--Assets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z0S2MKodnQfe" style="text-align: right" title="Total assets">53,374</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--Assets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zA2Cv6B0Ujeb" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--Assets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zUOWmE9CySU1" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--Assets_iI_pn3n3_c20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z8JYHnTEZfq" style="text-align: right" title="Total assets">53,374</td><td style="text-align: left"> </td></tr> </table>

<p id="xdx_893_eus-gaap--ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock_zfyNVWIWHNic" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in"> Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="14" style="border-bottom: Black 1.5pt solid; text-align: center">Year Ended April 30, 2024</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">North & South America</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Europe</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Asia and Australia</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="14" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 36%; text-align: left">Revenue from external customers</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zlnzRk1fFgth" style="width: 12%; text-align: right" title="Revenues from external customers">5,278</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zYD7qdd4JLCh" style="width: 12%; text-align: right" title="Revenues from external customers"> 247</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zjYiPAbijral" style="width: 12%; text-align: right" title="Revenues from external customers">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20230501__20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zQiX26v4bPfe" style="width: 12%; text-align: right" title="Revenues from external customers">5,525</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating (loss) income</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zIiBnjiPHBG3" style="text-align: right" title="Operating (loss) income">(29,548</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zDmmeDPpeVz7" style="text-align: right" title="Operating (loss) income">217</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zELPSYOnXAri" style="text-align: right" title="Operating (loss) income">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--OperatingIncomeLoss_pn3n3_c20230501__20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zGY4VkXxIz76" style="text-align: right" title="Operating (loss) income">(29,331</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Right-of-use assets, net</td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zKtZmhGOFAHk" style="text-align: right" title="Right of use assets">2,405</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zzeOiBzyhn3e" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zkmBY3vlVaAd" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z8isHbojf2F7" style="text-align: right" title="Right of use assets">2,405</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Long-lived assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zQjk9wiYF1z6" style="text-align: right" title="Long-lived assets">3,443</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zUx74lRyMqNd" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zjIrGX9fs0Kh" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--NoncurrentAssets_iI_pn3n3_c20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zV2MTlrj59Uk" style="text-align: right" title="Long-lived assets">3,443</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--Assets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zYiGwfzvQzz6" style="text-align: right" title="Total assets">28,704</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--Assets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zdUrJWbNe2Bg" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--Assets_iI_pn3n3_c20240430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zinEu7JeZLm8" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--Assets_iI_pn3n3_c20240430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zxpA87V5rsj6" style="text-align: right" title="Total assets">28,704</td><td style="text-align: left"> </td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="14" style="border-bottom: Black 1.5pt solid; text-align: center">Year Ended April 30, 2023</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">North & South America</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Europe</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Asia and Australia</td><td style="text-align: center; padding-bottom: 1.5pt"> </td><td style="text-align: center; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Total</td><td style="text-align: center; padding-bottom: 1.5pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left"> </td><td style="text-align: center"> </td> <td colspan="14" style="text-align: center">(in thousands)</td><td style="text-align: center"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 36%; text-align: left">Revenue from external customers</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zh3pKLjELsJ1" style="width: 12%; text-align: right" title="Revenues from external customers">2,389</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zmyh4afXVAX1" style="width: 12%; text-align: right" title="Revenues from external customers">90</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zu7Q7SkGSrCa" style="width: 12%; text-align: right" title="Revenues from external customers">253</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220501__20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zFRkgX2HtnPk" style="width: 12%; text-align: right" title="Revenues from external customers">2,732</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating (loss) income</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zPgxQdW2hUn" style="text-align: right" title="Operating (loss) income">(29,271</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_znKs9VLLK9o5" style="text-align: right" title="Operating (loss) income">6</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zS5u3pjRUj43" style="text-align: right" title="Operating (loss) income">49</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--OperatingIncomeLoss_pn3n3_c20220501__20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zIjr6w1LHZL9" style="text-align: right" title="Operating (loss) income">(29,216</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Right-of-use assets, net</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z12diAwgAe" style="text-align: right" title="Right of use assets">1,751</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zbbD3aHxkrag" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zNczq2JAAyBb" style="text-align: right" title="Right of use assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_c20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zejv9YlIE4V1" style="text-align: right" title="Right of use assets">1,751</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Long-lived assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zFCuq3r5l8Og" style="text-align: right" title="Long-lived assets">1,280</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zk7bShw7CF1i" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zI4FGUzF8yYk" style="text-align: right" title="Long-lived assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--NoncurrentAssets_iI_pn3n3_c20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zDHfY2JDOYmj" style="text-align: right" title="Long-lived assets">1,280</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total assets</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--Assets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--NorthAmericaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z0S2MKodnQfe" style="text-align: right" title="Total assets">53,374</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--Assets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__srt--EuropeMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zA2Cv6B0Ujeb" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--Assets_iI_pn3n3_c20230430__srt--StatementGeographicalAxis__custom--AsiaAndAustraliaMember__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_zUOWmE9CySU1" style="text-align: right" title="Total assets">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--Assets_iI_pn3n3_c20230430__us-gaap--StatementBusinessSegmentsAxis__custom--OperatingSegmentMember_z8JYHnTEZfq" style="text-align: right" title="Total assets">53,374</td><td style="text-align: left"> </td></tr> </table>

5278000

247000

5525000

-29548000

217000

-29331000

2405000

3443000

28704000

2389000

90000

253000

2732000

-29271000

6000

49000

-29216000

1751000

1280000

53374000

(17) Employee Benefits 401(k) Savings & Retirement Plan The Company offers a 401(k) Savings & Retirement Plan to eligible employees meeting certain age and service requirements. This plan permits participants to contribute 100% of their salary, up to the maximum allowable by the Internal Revenue Service regulations. Participants are immediately vested in their voluntary contributions plus actual earnings or less actual losses thereon. Participants are eligible to participate in the Company match after one year of service and are fully vested in the Company match after two years of service. The Company matches employee contributions dollar for dollar up to the first 3% and fifty cents on the dollar for each additional 1% up to 9% for a maximum match contribution of 6%. The aggregate employer 401(k) match expense recorded in the Consolidated Statements of Operations for the years ended April 30, 2024 and 2023 was approximately $<span id="xdx_904_eus-gaap--EmployeeBenefitsAndShareBasedCompensation_pn5n6_c20230501__20240430__us-gaap--PlanNameAxis__custom--RetirementPlanMember_zqzALnt0RCLf" title="Employee benefits and share-based compensation">0.3 million and $<span id="xdx_909_eus-gaap--EmployeeBenefitsAndShareBasedCompensation_pn5n6_c20220501__20230430__us-gaap--PlanNameAxis__custom--RetirementPlanMember_z9dkkS1XUnhd" title="Employee benefits and share-based compensation">0.3 million, respectively. The Company may also provide for a voluntary contribution to the plan which is approved by the Company’s Board of Directors on an annual basis. All participants immediately vest on the date of distribution.

0.03 0.01 0.09 0.06

300000