Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 8,310	$ 10,246	$ 26,469	$ 30,473
Costs and expenses:
Cost of sales	8,075	10,063	24,118	28,099
Selling, general, and administrative expenses	1,299	1,481	4,133	5,100
Goodwill impairment charge	0	0	0	3,020
Total costs and expenses	9,374	11,544	28,251	36,219
Operating loss	(1,064)	(1,298)	(1,782)	(5,746)
Other (expense) income:
Interest expense, net	(266)	(621)	(741)	(2,030)
Change in fair value of contingent earn-outs, net	1	4	5	434
Loss before income taxes	(1,329)	(1,915)	(2,518)	(7,342)
Income tax expense	(5)	(2)	(20)	(10)
Net loss	(1,334)	(1,917)	(2,538)	(7,352)
Preferred stock dividend	(435)	(9)	(1,267)	(9)
Net loss attributable to common shareholders	$ (1,769)	$ (1,926)	$ (3,805)	$ (7,361)
Net loss per share, basic and diluted (in usd per share)	$ (0.74)	$ (0.81)	$ (1.59)	$ (3.11)
Weighted average common shares outstanding, basic and diluted (in shares)	2,396	2,366	2,396	2,366