CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
REVENUES	$ 3,440,652	$ 3,165,342	$ 6,151,438	$ 6,020,997
COST OF REVENUES	(1,210,561)	(1,017,212)	(1,963,488)	(2,137,014)
Gross profit	2,230,091	2,148,130	4,187,950	3,883,983
OPERATING EXPENSES
Selling	461,513	473,955	861,358	988,083
General and administrative	1,139,613	948,095	2,028,323	2,109,498
Research and development	568,047	598,761	1,222,272	1,364,347
Total operating expenses	2,169,173	2,020,811	4,111,953	4,461,928
Income (loss) from operations	60,918	127,319	75,997	(577,945)
OTHER INCOME (EXPENSE)
Interest income	0	13	0	28
Interest expense	0	(2,500)	0	(5,000)
Other Nonoperating Income (Expense)	0	(2,487)	0	(4,972)
Net income (loss)	$ 60,918	$ 124,832	$ 75,997	$ (582,917)
Net income (loss) per common share -
Basic (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ (0.02)
Diluted (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ (0.02)
Weighted average common shares used in computing per share amounts -
Basic (in shares)	27,475,792	27,091,227	27,469,148	27,059,049
Diluted (in shares)	27,778,840	27,530,215	27,738,763	27,059,049