Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net sales	$ 7,335	$ 7,684
Costs and expenses:
Cost of sales	6,354	7,044
Selling, general, and administrative expenses	1,496	1,411
Total costs and expenses	7,850	8,455
Operating loss	(515)	(771)
Other (expense) income:
Interest expense, net	(263)	(237)
Change in fair value of contingent earn-outs, net	0	2
Loss before income taxes	(778)	(1,006)
Income tax expense	(3)	(4)
Net loss	(781)	(1,010)
Accrued preferred stock dividend	(448)	(410)
Net loss attributable to common shareholders	$ (1,229)	$ (1,420)
Net loss per share, basic and diluted (in usd per share)	$ (0.51)	$ (0.59)
Weighted average common shares outstanding, basic and diluted (in shares)	2,407	2,396