Inventories (Details) - USD ($) $ in Thousands |
Jul. 31, 2025 |
Apr. 30, 2025 |
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Finished goods | $ 26,526 | $ 27,581 |
| Work-in-process | 717 | 632 |
| Paper and other materials | 165 | 124 |
| Total inventories before estimated sales returns and LIFO reserve | 27,408 | 28,337 |
| Inventory value of estimated sales returns | 4,047 | 4,042 |
| LIFO reserve | (9,504) | (9,504) |
| Inventories, net | $ 21,951 | $ 22,875 |
| X | ||||||||||
- Definition Amount of inventory reserves for estimated sales returns. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| 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
|
| 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
|
| 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
|
| 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
|
| X | ||||||||||
- 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
|
| 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
|