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Accrued Expenses | 12 Months Ended
--- | ---
Apr. 30, 2024
Payables and Accruals [Abstract] |
Accrued Expenses | (10) Accrued Expenses Accrued expenses consisted of the following at April 30, 2024 and 2023: Schedule of Accrued Expenses
|  | April 30, 2024 |  |  | April 30, 2023 |
|  | (in thousands) |
Employee incentive payments |  | $ | 1,271 |  |  | $ | 1,948 |
Accrued salary and benefits |  |  | 369 |  |  |  | 52 |
Project costs |  |  | — |  |  |  | 181 |
Other |  |  | 147 |  |  |  | 165 |
Accrued expenses total |  | $ | 1,787 |  |  | $ | 2,346 |

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