Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Income Statement [Abstract]
Net sales	$ 32,084	$ 28,367
Costs of goods sold	22,377	20,679
Gross profit	9,707	7,688
Selling, general and administrative expenses	14,451	11,983
Operating loss	(4,744)	(4,295)
Pension expense	195	506
Interest expense	427	293
Loss before income taxes	(5,366)	(5,094)
Income tax benefits	(282)	(1,185)
Net loss	$ (5,084)	$ (3,909)
Net loss per common share:
Basic (usd per share)	$ (0.32)	$ (0.25)
Diluted (usd per share)	$ (0.32)	$ (0.25)
Weighted average shares of common stock outstanding:
Basic (shares)	16,033	15,824
Diluted (shares)	16,033	15,824