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Accrued Expenses | 3 Months Ended
--- | ---
Jul. 31, 2024
Payables and Accruals [Abstract] |
Accrued Expenses | (10) Accrued Expenses Accrued expenses consisted of the following at July 31, 2024 and April 30, 2024: Schedule of Accrued Expenses
|  | July 31, 2024 |  |  | April 30, 2024 |
|  | (in thousands) |
Project costs |  | $ | 29 |  |  | $ | — |
Employee incentive payments |  |  | 1,231 |  |  |  | 1,271 |
Accrued salary and benefits |  |  | 80 |  |  |  | 369 |
Professional fees |  |  | 44 |  |  |  | — |
Other |  |  | 195 |  |  |  | 147 |
Accrued expenses total |  | $ | 1,579 |  |  | $ | 1,787 |

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