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Inventories - Components of Inventories (Detail) - USD ($) $ in Thousands	Apr. 30, 2022	Jan. 31, 2022
Inventory Disclosure [Abstract]
Materials and Supplies	$ 25,385	$ 22,709
Work-In-Process	818	1,489
Finished Goods	20,536	19,718
Inventory, Gross	46,739	43,916
Inventory Reserve	(9,880)	(9,307)
Inventories	$ 36,859	$ 34,609

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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