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Schedule of Components of Intangible Assets (Details) - USD ($) $ in Thousands | Jul. 31, 2025 | Apr. 30, 2025
--- | --- | ---
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Patents | $ 2,729 | $ 2,729
Trademarks | 2,769 | 2,769
Intangible assets, gross | 5,498 | 5,498
Accumulated amortization | (2,042) | (2,008)
Intangible assets, net | $ 3,456 | $ 3,490

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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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