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Inventory | 3 Months Ended
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Jul. 31, 2025
Inventory Disclosure [Abstract] |
Inventory | (4) 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 |
The Company’s raw materials balance represents the majority of the inventory as the Company orders parts in quantity to fill orders. Work in process and finished products typically represent smaller portions of inventory as the Company does not historically hold finished products with the exception of assets transitioning to the lease fleet. The Company typically ships finished products as they are completed.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/330/tableOfContent + Details
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