CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net sales	$ 59,138	$ 50,115	$ 111,714	$ 98,187
Cost of sales	47,954	41,283	91,361	81,126
Gross profit	11,184	8,832	20,353	17,061
Operating expenses:
Research & development and engineering	2,289	1,808	4,060	3,535
Selling and service	2,089	1,583	3,969	3,285
General and administrative	2,966	2,048	5,404	3,812
Total operating expenses	7,344	5,439	13,433	10,632
Operating income	3,840	3,393	6,920	6,429
Other expense (income):
Interest expense	241	290	435	517
Loss on debt extinguishment	270		270
Private placement warrant expense (income)	4,207	(1,050)	9,053	(457)
Other (income) expense, net	(17)	59	(17)	94
Total other expense (income)	4,701	(701)	9,741	154
(Loss) income before income taxes	(861)	4,094	(2,821)	6,275
Income tax provision	1,239	1,133	2,206	2,164
Net (loss) income	$ (2,100)	$ 2,961	$ (5,027)	$ 4,111
Common Shares [Member]
Weighted-average common shares outstanding:
Basic	9,243,773	9,064,537	9,171,942	9,064,537
Diluted	9,243,773	9,064,537	9,171,942	9,064,537
(Loss) earnings per share - basic Common shares	$ (0.23)	$ 0.33	$ (0.55)	$ 0.45
(Loss) earnings per share - diluted Common shares	$ (0.23)	$ 0.33	$ (0.55)	$ 0.45