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Inventory (Tables) | 3 Months Ended
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Jul. 31, 2025
Inventory Disclosure [Abstract] |
Schedule of Inventory | The Company holds inventory related to the production of its WAM-V® and PowerBuoy® products. Schedule of Inventory
|  | July 31, 2025 |  |  | April 30, 2025 |
|  | (in thousands) |
Raw Materials |  | $ | 4,202 |  |  | $ | 3,586 |
Work in Process |  |  | 663 |  |  |  | 636 |
Finished Products |  |  | — |  |  |  | — |
Inventory |  | $ | 4,865 |  |  | $ | 4,222 |

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