Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Net sales	$ 180,768	$ 250,990	$ 252,596
Cost of products sold	166,888	209,841	205,148
Gross margin	13,880	41,149	47,448
Selling, general and administrative expenses	17,493	17,365	17,740
Severance expense	392	381	21
Operating (loss) income	(4,005)	23,403	29,687
Interest expense and other financing costs	(3,042)	(2,592)	(1,421)
Other income	481	140	212
(Loss) income before income taxes	(6,566)	20,951	28,478
(Benefit) provision for income taxes	(2,504)	6,334	10,356
Net (loss) income	$ (4,062)	$ 14,617	$ 18,122
Net (loss) income per common share - Basic	$ (0.58)	$ 2.13	$ 2.65
Net (loss) income per common share - Diluted	$ (0.58)	$ 2.02	$ 2.56
Weighted average shares of common stock outstanding
Basic	6,950,976	6,874,669	6,826,490
Diluted	6,950,976	7,454,030	7,138,824