Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold
Property, Plant, and Equipment [Line Items]
Depreciation	$ 1,100	$ 1,100	$ 2,300	$ 2,300
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Property, Plant, and Equipment [Line Items]
Depreciation	$ 300	$ 500	$ 600	$ 800