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Inventories - Components of Inventories (Detail) - USD ($) $ in Thousands | Oct. 31, 2025 | Jan. 31, 2025
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Inventory Disclosure [Abstract] |  |
Materials and Supplies | $ 31,432 | $ 35,181
Work-In-Progress | 2,376 | 2,559
Finished Goods | 21,624 | 19,879
Inventory, Gross | 55,432 | 57,619
Inventory Reserve | (10,308) | (9,725)
Inventories | $ 45,124 | $ 47,894

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