CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Income Statement [Abstract]
Net sales	$ 28,889	$ 23,501
Cost of sales	24,664	21,716
Gross profit	4,225	1,785
Operating expenses
General and administrative expenses	3,982	4,286
Selling expenses	1,142	1,316
Total operating expenses	5,124	5,602
Loss from operations	(899)	(3,817)
Interest expense, net	266	157
Loss from continuing operations before income taxes	(1,165)	(3,974)
Income tax benefit	(48)	(485)
Net loss	$ (1,117)	$ (3,489)
Weighted average common shares outstanding
Basic and diluted	7,718	7,610
Loss per share
Basic and diluted	$ (0.14)	$ (0.46)