Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 58,494	$ 60,271
Cost of products sold	53,585	52,901
Gross margin	4,909	7,370
Selling, general and administrative expenses	5,908	4,966
Operating (loss) income	(999)	2,404
Interest expense and other financing costs	952	913
Other (income) expense, net	(17)	21
(Loss) income before income taxes	(1,934)	1,470
(Benefit) provision for income taxes	(523)	248
Net (loss) income	$ (1,411)	$ 1,222
Net (loss) income per common share - Basic	$ (0.16)	$ 0.14
Net (loss) income per common share - Diluted	$ (0.16)	$ 0.14
Weighted average shares of common stock outstanding
Basic	8,801,337	8,761,538
Diluted	8,801,337	8,860,525