Inventories (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2024 |
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| Inventory Disclosure [Abstract] | ||
| Finished goods | $ 27,581 | $ 24,295 |
| Work-in-process | 632 | 1,445 |
| Paper and other materials | 124 | 181 |
| Total inventories before estimated sales returns and LIFO reserve | 28,337 | 25,921 |
| Inventory value of estimated sales returns | 4,042 | 7,833 |
| LIFO reserve | (9,504) | (7,535) |
| Inventories, net | 22,875 | 26,219 |
| Adjustment for lower of cost or net realizable value | $ 11,100 | $ 11,900 |
| X | ||||||||||
- Definition Amount of inventory reserves for estimated sales returns. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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