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Intangible Assets (Tables) | 9 Months Ended
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Jan. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Components of Intangible Assets | The components of intangible assets, net as of January 31, 2024 and April 30, 2023 consisted of the following: Schedule of Components of Intangible Assets
|  | January 31, 2024 |  |  | April 30, 2023 |
|  | (in thousands) |
Patents |  | $ | 2,729 |  |  | $ | 2,729 |
Trademarks |  |  | 2,769 |  |  |  | 2,769 |
Tradename |  |  | — |  |  |  | 130 |
Customer Relationships |  |  | — |  |  |  | 150 |
Intangible assets, gross |  |  | 5,498 |  |  |  | 5,778 |
Accumulated amortization |  |  | (1,842 | ) |  |  | (1,800 | )
Intangible assets, net |  | $ | 3,656 |  |  | $ | 3,978 |

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