Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net sales	$ 93,972	$ 64,628	$ 244,085	$ 176,342
Cost of sales	75,344	52,256	198,131	143,617
Gross profit	18,628	12,372	45,954	32,725
Operating expenses:
Research & development and engineering	4,501	3,250	11,844	7,310
Selling and service	2,706	1,841	6,871	5,810
General and administrative	3,902	3,159	10,306	8,563
Total operating expenses	11,109	8,250	29,021	21,683
Operating income	7,519	4,122	16,933	11,042
Other (income) expense:
Interest expense	407	135	887	570
Loss on debt extinguishment				270
Contingent consideration	(3,208)		(3,782)
Private placement warrant (income) expense	(858)	12,605	(1,190)	21,658
Other expense (income), net	34	(19)	109	(36)
Total other (income) expense	(3,625)	12,721	(3,976)	22,462
Income (loss) before income taxes	11,144	(8,599)	20,909	(11,420)
Income tax provision	2,713	1,382	5,992	3,588
Net income (loss)	$ 8,431	$ (9,981)	$ 14,917	$ (15,008)
Common Shares [Member]
Weighted-average common shares outstanding:
Basic	10,794,229	10,266,176	10,676,792	9,536,687
Diluted	11,167,598	10,266,176	11,125,116	9,536,687
Earnings (loss) per share-basic Common shares	$ 0.78	$ (0.97)	$ 1.40	$ (1.57)
Earnings (loss) per share-diluted Common shares	$ 0.68	$ (0.97)	$ 1.23	$ (1.57)