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v3.23.2

Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Apr. 30, 2023 | Apr. 30, 2022
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Income Tax Disclosure [Abstract] |  |
Federal net operating loss carryforwards | $ 43,788 | $ 40,338
Foreign net operating loss carryforwards | 2,059 | 2,061
State operating loss carryforwards | 1,578 | 968
Federal and New Jersey research and development tax credits | 5,143 | 4,167
Stock compensation | 662 | 429
Accrued expenses | 474 | 79
Capitalized section 174 research & development | 1,453 |
Leases | 448 | 207
Other | 76 | 142
Net deferred tax assets before valuation allowance | 55,681 | 48,391
Valuation allowance | (54,644) | (47,597)
Deferred tax assets | 1,037 | 794
Lease liabilities | 448 | 203
Intangibles | 792 | 794
Net deferred tax liabilities | $ (203) | $ (203)

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