CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME
Revenues	$ 24,876	$ 24,316	$ 75,371	$ 77,999
Cost of products sold	17,638	17,217	53,075	55,112
Gross margin	7,238	7,099	22,296	22,887
Operating costs and expenses:
Selling	1,132	1,143	3,640	3,798
General and administrative	2,516	2,343	8,098	8,197
Engineering and development	1,718	1,454	5,123	4,570
Business development costs	596		1,235
Relocation costs			234
Amortization of intangible assets	83	126	252	466
Total operating costs and expenses	6,045	5,066	18,582	17,031
Operating income	1,193	2,033	3,714	5,856
Other (expense) income, net:
Interest expense	(13)	(2)	(30)	(12)
Other expense, net	(38)	(89)	58	230
Total other (expense) income, net	(51)	(91)	28	218
Income before income taxes	1,142	1,942	3,742	6,074
Provision for income taxes	(309)	(621)	(1,130)	(1,778)
Net income	833	1,321	2,612	4,296
Foreign currency translation adjustment	806	305	352	(135)
Comprehensive income	$ 1,639	$ 1,626	$ 2,964	$ 4,161
Basic net income per share:
Net income per share (in dollars per share)	$ 0.09	$ 0.15	$ 0.30	$ 0.50
Basic weighted average common shares (in shares)	8,807	8,673	8,778	8,637
Diluted net income per share:
Net income per share (in dollars per share)	$ 0.09	$ 0.15	$ 0.30	$ 0.50
Diluted weighted average common shares (in shares)	8,807	8,673	8,778	8,637