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Intangible Assets | 12 Months Ended
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Apr. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | (7) Intangible Assets The components of intangible assets, net as of April 30, 2025 and 2024 consisted of the following: Schedule of Components of Intangible Assets
|  | April 30, 2025 |  |  | April 30, 2024 |
|  | (in thousands) |
Patents |  | $ | 2,729 |  |  | $ | 2,729 |
Trademarks |  |  | 2,769 |  |  |  | 2,769 |
Intangible assets, gross |  |  | 5,498 |  |  |  | 5,498 |
Accumulated amortization |  |  | (2,008 | ) |  |  | (1,876 | )
Intangible assets, net |  | $ | 3,490 |  |  | $ | 3,622 |
Amortization expense was approximately $132,000 and $148,000 for the years ended April 30, 2025 and 2024, respectively. Trademarks are not subject to amortization. Additionally, in connection with the sale of 3Dent in November of 2023, the trade-name and customer relationships were both expensed fully during the fiscal year ended April 30, 2024 under Loss on disposition of assets on the Consolidated Statements of Operations.

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