Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Sales	$ 6,849	$ 6,592	$ 13,892	$ 12,843
Cost of goods sold	2,841	2,742	5,720	5,240
Gross margin	4,008	3,850	8,172	7,603
Operating expenses:
Research and development	1,276	960	2,627	1,911
Selling, general and administrative	2,215	1,876	4,388	3,813
Total operating expenses	3,491	2,836	7,015	5,724
Gain on sale of assets	0	0	0	3
Operating income	517	1,014	1,157	1,882
Non-operating income (expense):
Interest income	19	15	32	17
Interest expense	(1)	(3)	(2)	(6)
Foreign currency transaction gain (loss)	(32)	(122)	(66)	(178)
Total non-operating income (loss)	(14)	(110)	(36)	(167)
Income before income taxes	503	904	1,121	1,715
Income tax expense	(105)	(45)	(191)	(148)
Net income	$ 398	$ 859	$ 930	$ 1,567
Basic earnings per share	$ 0.04	$ 0.10	$ 0.10	$ 0.17
Diluted earnings per share	$ 0.04	$ 0.09	$ 0.10	$ 0.17
Weighted-average basic shares	9,176	8,984	9,103	8,972
Weighted-average diluted shares	9,343	9,101	9,289	9,091