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Accrued Expenses and Deferred Revenue - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands | Oct. 31, 2025 | Apr. 30, 2025
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Payables and Accruals [Abstract] |  |
Accrued customer incentives and promotions | $ 3,903 | $ 4,853
Accrued taxes other than income | 3,885 | 5,907
Accrued employee benefits | 3,557 | 3,240
Accrued professional fees | 1,828 | 1,774
Current portion of finance lease obligation | 1,772 | 1,701
Current portion of operating lease obligation | 5 | 233
Accrued other | 3,708 | 6,970
Total accrued expenses and deferred revenue | $ 18,658 | $ 24,678

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