Condensed Consolidated Statements of Income Unaudited - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Income Statement [Abstract]
Net sales	$ 22,569	$ 23,235
Costs of goods sold	14,884	14,808
Gross profit	7,685	8,427
Selling, general and administrative expenses	12,274	11,692
Gain on sale of property, plant & equipment	(1)	0
Operating loss	(4,588)	(3,265)
Interest expense, net	446	295
Income (loss) before income taxes	(5,034)	(3,560)
Income tax (benefit) expense	(1,462)	(1,349)
Net income (loss)	$ (3,572)	$ (2,211)
Dividend declared per share: Cash (usd per share)	$ 0.015	$ 0
Net income (loss) per common share:
Basic (usd per share)	(0.23)	(0.15)
Diluted (usd per share)	$ (0.23)	$ (0.15)
Weighted average shares outstanding:
Basic (shares)	15,317	15,128
Diluted (shares)	15,317	15,128