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Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2025 | Apr. 30, 2024
Schedule Of Unrecognized Tax Benefits Roll Forward Abstract |  |
Balance at the beginning of the fiscal year | $ 111 | $ 230
Additions based on positions taken in the current year | 0 | 0
Additions based on positions taken in prior years | 45 | 0
Decreases based on positions taken in prior years | (12) | 0
Lapse in statute of limitations | 0 | (119)
Balance at the end of the fiscal year | $ 144 | $ 111

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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A + Details
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