PROPERTY, PLANT AND EQUIPMENT, NET - Depreciation Expense and Cost of Maintenance and Repairs (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
PROPERTY, PLANT AND EQUIPMENT, NET.
Depreciation	$ 1,912	$ 1,905	$ 2,013
Costs of maintenance and repairs	$ 1,800	$ 1,500	$ 1,600

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration