Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Net sales	$ 52,309	$ 42,887	$ 98,976	$ 92,022
Cost of products sold	43,899	37,579	84,506	82,068
Gross margin	8,410	5,308	14,470	9,954
Selling, general and administrative expenses	5,169	4,869	9,797	9,348
Operating income	3,241	439	4,673	606
Interest expense and other financing costs	(1,042)	(837)	(1,905)	(1,526)
Other (expense) income, net	(1)	35	3	63
Income (loss) before income taxes	2,198	(363)	2,771	(857)
Provision (benefit) for income taxes	749	(841)	1,821	(1,375)
Net income	$ 1,449	$ 478	$ 950	$ 518
Net income per common share - Basic	$ 0.21	$ 0.07	$ 0.14	$ 0.07
Net income per common share - Diluted	$ 0.20	$ 0.06	$ 0.13	$ 0.06
Weighted average shares of common stock outstanding
Basic	7,031,041	6,940,831	7,022,983	6,934,182
Diluted	7,110,761	7,485,405	7,112,093	7,494,125