Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 48,875	$ 39,594
Cost of products sold	44,630	38,253
Gross margin	4,245	1,341
Selling, general and administrative expenses	4,729	3,838
Operating loss	(484)	(2,497)
Interest expense and other financing costs	1,003	1,810
Other (income) expense, net	(6)	53
Loss before income taxes	(1,481)	(4,360)
Benefit for income taxes	(262)	(1,920)
Net loss	$ (1,219)	$ (2,440)
Net loss per common share - Basic	$ (0.17)	$ (0.34)
Net loss per common share - Diluted	$ (0.17)	$ (0.34)
Weighted average shares of common stock outstanding
Basic	7,216,447	7,162,601
Diluted	7,216,447	7,162,601