CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) [Abstract]
Net sales	$ 2,891,109	$ 3,002,608	$ 8,862,945	$ 9,184,912
Costs and expenses:
Cost of goods sold	819,309	1,089,600	3,444,465	3,547,845
Sales and marketing	1,005,600	504,305	2,238,866	1,665,918
General and administrative	1,191,857	1,130,070	3,510,232	3,175,537
Research and development	28,476	12,979	71,982	63,829
Total costs and expenses	3,045,242	2,736,954	9,265,545	8,453,129
(Loss) income from operations	(154,133)	265,654	(402,600)	731,783
Other income (expense):
Interest income	21,062	28,715	62,320	87,033
Interest expense	(456)	(880)	(718)	(2,645)
Loss on disposal of assets	0	0	(94,408)	0
Loss on call of long-term investments	0	0	(2,913)	0
Total other income (expense)	20,606	27,835	(35,719)	84,388
(Loss) income before income taxes	(133,527)	293,489	(438,319)	816,171
Income tax net benefit	243,182	218,463	208,272	330,481
Net income (loss)	$ 109,655	$ 511,952	$ (230,047)	$ 1,146,652
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.01	$ 0.03	$ (0.01)	$ 0.06
Fully diluted (in dollars per share)	$ 0.01	$ 0.03	$ (0.01)	$ 0.06
Weighted average number of shares used in computing net income (loss) per common share:
Basic (in shares)	19,540,214	19,261,941	19,437,360	19,144,036
Fully diluted (in shares)	19,791,217	19,515,550	19,437,360	19,392,644