CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
REVENUES	$ 2,710,786	$ 2,855,655
COST OF REVENUES	(752,927)	(1,119,802)
Gross profit	1,957,859	1,735,853
OPERATING EXPENSES
Selling	399,845	514,128
General and administrative	888,710	1,161,403
Research and development	654,225	765,586
Total operating expenses	1,942,780	2,441,117
Income (loss) from operations	15,079	(705,264)
OTHER INCOME (EXPENSE)
Interest income	0	15
Interest expense	0	(2,500)
Other Nonoperating Income (Expense)	0	(2,485)
Net income (loss)	$ 15,079	$ (707,749)
Net income (loss) per common share -
Basic (in dollars per share)	$ 0	$ (0.03)
Diluted (in dollars per share)	$ 0	$ (0.03)
Weighted average common shares used in computing per share amounts -
Basic (in shares)	27,462,504	27,026,872
Diluted (in shares)	27,698,685	27,026,872