CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Sales	$ 6,671	$ 6,256	$ 20,843	$ 19,252
Cost of sales	3,777	3,650	12,297	11,167
Gross profit	2,894	2,606	8,546	8,085
Gain from settlement of litigation	0	0	0	750
Other costs and expenses:
Research and development	322	288	969	924
Professional services	408	289	1,061	906
Salaries and related costs	781	785	2,352	2,391
Selling, general and administrative	1,101	996	3,246	3,231
Total other costs and expenses	2,612	2,358	7,628	7,452
Income from operations	282	248	918	1,383
Change in fair value of liabilities, net	(135)	(67)	(108)	181
Interest expense, net	(58)	(42)	(175)	(141)
Income before income taxes	89	139	635	1,423
Provision for income taxes, net	(96)	(76)	(304)	(439)
Net income (loss)	$ (7)	$ 63	$ 331	$ 984
Earnings (loss) per share
Basic (in dollars per share)	$ 0	$ 0	$ 0.02	$ 0.06
Diluted (in dollars per share)	$ 0	$ 0	$ 0.02	$ 0.06
Weighted average number of shares outstanding- basic (in shares)	17,634	17,601	17,628	17,592
Weighted average number of shares outstanding - dilutive (in shares)	17,634	17,774	17,731	17,807