Inventories (Details) - USD ($) $ in Thousands	Jul. 31, 2026	Jan. 31, 2026	Jul. 31, 2025
Inventory Disclosure [Abstract]
Finished goods	$ 22,017	$ 21,923	$ 23,317
Work in process	17,154	20,084	23,133
Raw materials	13,861	14,728	13,416
Total inventories	$ 53,032	$ 56,735	$ 59,866

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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-Topic 330
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Balance Type:	debit
Period Type:	instant