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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2025 | Apr. 30, 2024
Schedule Of Effective Income Tax Rate Reconciliation Abstract |  |
Statutory rate | $ 2,550 | $ 1,147
State and local tax | 223 | 167
Valuation allowance on deferred tax assets | (13,874) | (1,060)
Nondeductible expenses | 5 | 4
FDII | (81) | 0
Uncertain tax positions | 0 | (127)
Nontaxable life insurance cash value increase | (65) | (63)
Taxable life insurance gain | 0 | 0
Capital loss | 0 | (8)
Stock compensation | (153) | 106
Tax credits | (319) | (16)
Change in tax rate | 173 | (244)
Other items | (1) | (36)
Total benefit | $ (11,542) | $ (130)

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