Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements Of Operations
Revenues	$ 16,859	$ 16,499	$ 30,209	$ 28,840
Cost of revenues	9,352	9,843	16,095	16,928
Gross margin	7,507	6,656	14,114	11,912
Research and development expenses	1,947	1,707	3,765	3,484
Selling, general and administrative expenses	3,671	3,714	7,328	6,891
Amortization of intangibles	45	46	90	91
Income from operations	1,844	1,189	2,931	1,446
Interest income and other	(7)	13	79	90
Income before income taxes	1,837	1,202	3,010	1,536
Income tax provision	439	233	766	320
Net income	$ 1,398	$ 969	$ 2,244	$ 1,216
Net income per share - Basic	$ 0.20	$ 0.14	$ 0.33	$ 0.18
Net income per share - Diluted	$ 0.20	$ 0.14	$ 0.32	$ 0.18
Weighted average shares outstanding - Basic	6,894	6,847	6,893	6,843
Weighted average shares outstanding - Diluted	6,948	6,914	6,941	6,892