Condensed Consolidated Statements of Income Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Income Statement [Abstract]
Net sales	$ 17,599	$ 26,893
Costs of goods sold	12,695	17,809
Gross profit	4,904	9,084
Selling, general and administrative expenses	11,931	12,681
Gain on sale of property, plant & equipment	0	0
Operating loss	(7,027)	(3,597)
Pension expense	542	188
Interest expense	404	700
Income (loss) before income taxes	(7,973)	(4,485)
Income tax (benefit) expense	(3,275)	(1,418)
Net income (loss)	$ (4,698)	$ (3,067)
Net income (loss) per common share:
Basic (usd per share)	$ (0.30)	$ (0.20)
Diluted (usd per share)	$ (0.30)	$ (0.20)
Weighted average shares outstanding:
Basic (shares)	15,654	15,486
Diluted (shares)	15,654	15,486