CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Sales, net	$ 27,671	$ 25,411	$ 24,230
Cost of sales	16,338	14,680	14,242
Gross Profit	11,333	10,731	9,988
Gain on legal settlement	0	750	0
Other costs:
Research and development	1,329	1,197	1,854
Professional services	1,439	1,250	1,556
Salaries and related costs	3,178	3,114	3,155
Selling, general and administration	4,341	4,347	4,889
Legal settlement	0	1,591	0
Asset impairment	0	0	1,286
Total other costs	10,287	11,499	12,740
Income (loss) from operations	1,046	(18)	(2,752)
Other income (expense):
Interest expense, net	(232)	(237)	(223)
Gain on change in fair value of liabilities, net	20	287	513
Total other income (expense), net	(212)	50	290
Income (loss) before income taxes	834	32	(2,462)
Provision for current income taxes	0	0	(7)
Benefit (provision) for deferred income taxes	(217)	77	934
Total benefit (provision) for income taxes - net	(217)	77	927
Net income (loss)	$ 617	$ 109	$ (1,535)
Earnings (loss) per common share:
Basic (in dollars per share)	$ 0.04	$ 0.01	$ (0.09)
Diluted (in dollars per share)	$ 0.03	$ 0.01	$ (0.09)
Weighted average number of common shares outstanding - basic (in shares)	17,631	17,597	17,367
Weighted average number of common shares outstanding adjusted for dilutive securities (in shares)	17,787	17,669	17,367