CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME
Revenues		$ 232,434	$ 249,682	$ 125,502
Cost of goods sold		163,662	176,256	88,980
Gross margin		68,772	73,426	36,522
Operating costs and expenses:
Selling		8,149	8,709	5,513
General and administrative		22,251	23,972	13,282
Engineering and development		14,229	13,881	7,931
Business development		569		1,913
Amortization of intangible assets		2,644	2,714	825
Total operating costs and expenses		47,842	49,276	29,464
Operating income		20,930	24,150	7,058
Other expense (income):
Interest expense		6,023	6,435	1,445
Other expense (income), net		(514)	(908)	(168)
Total other expense (income), net		5,509	5,527	1,277
Income before income taxes		15,421	18,623	5,781
Provision for income taxes		(4,347)	(4,763)	(1,828)
Net income		$ 11,074	$ 13,860	$ 3,953
Basic earnings per share:
Earnings per share (in dollars per share)		$ 1.20	$ 1.52	$ 0.45
Basic weighted average common shares (in shares)		9,228	9,145	8,833
Diluted earnings per share:
Earnings per share (in dollars per share)		$ 1.20	$ 1.51	$ 0.45
Diluted weighted average common shares (in shares)		9,238	9,165	8,840
Net income		$ 11,074	$ 13,860	$ 3,953
Foreign currency translation adjustment		(4,334)	(5,601)	652
Change in accumulated income (loss) income on derivatives		(25)	(43)	41
Pension adjustments (1)	[1]	165	(663)	854
Comprehensive income		$ 6,880	$ 7,553	$ 5,500

[1] Net of tax of $114, ($460) and $480 for the periods ending December 31, 2015, 2014 and 2013, respectively.