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Income Taxes (Schedule Of Significant Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Apr. 30, 2020 | Apr. 30, 2019
--- | --- | ---
Deferred tax assets: |  |
Accounts receivable | $ 1,730 | $ 1,852
Product liability | 862 | 2,133
Employee benefits | 5,189 | 6,192
Operating leases | 33,258 |
Other | 4,330 | 3,272
Gross deferred tax assets, before valuation allowance | 50,364 | 17,888
Valuation allowance | (4,415) | (3,630)
Gross deferred tax assets, after valuation allowance | 45,949 | 14,258
Deferred tax liabilities: |  |
Pension benefits | 0 | 119
Inventory | 125 | 76
Depreciation | 24,147 | 23,721
Intangibles | 40,677 | 53,259
Operating leases | 32,325 |
Other | 695 | 1,059
Total | 97,969 | 78,234
Net deferred tax liability | 52,020 | 63,976
State [Member] |  |
Deferred tax assets: |  |
Tax credit carryforwards | $ 4,995 | $ 4,439

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