Statements of Operations (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Statements Of Operations
Net Sales	$ 7,051	$ 6,605	$ 20,943	$ 19,448
Cost of goods sold	3,108	2,781	8,827	8,021
Gross margin	3,943	3,824	12,116	11,427
Operating expenses:
Research and development	1,482	957	4,109	2,868
Selling, general and administrative	2,101	1,912	6,490	5,725
Total operating expenses	3,583	2,869	10,599	8,593
Gain on sale of assets	0	10	0	13
Operating income	360	965	1,517	2,847
Non-operating income (expense):
Interest income	13	13	45	30
Interest expense	0	(3)	(2)	(9)
Foreign currency transaction gain (loss)	(178)	(44)	(244)	(221)
Total non-operating income (loss)	(165)	(34)	(201)	(200)
Income before income taxes	195	931	1,316	2,647
Income tax (expense) benefit	(65)	(98)	(255)	(246)
Net income	$ 130	$ 833	$ 1,061	$ 2,401
Basic earnings per share	$ 0.01	$ 0.09	$ 0.12	$ 0.27
Diluted earnings per share	$ 0.01	$ 0.09	$ 0.11	$ 0.26
Weighted-average basic shares	9,270	9,018	9,159	8,987
Weighted-average diluted shares	9,391	9,148	9,323	9,110