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Schedule of Other Current Assets (Details) - USD ($) $ in Thousands | Jan. 31, 2024 | Apr. 30, 2023
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Proceeds receivable from sale of New Jersey net operating loss & tax credits | $ 1,234 |
Prepaid inventory materials | 1,088 | 58
Prepaid insurance | 374 | 358
Prepaid software & licenses | 308 | 190
Prepaid sales & marketing | 138 | 122
Prepaid project costs | 617 | 46
Prepaid expenses- other | 168 | 220
Total other current assets | $ 3,927 | $ 994

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