Statements Of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Product revenue, net	$ 2,164,697	$ 1,925,320	$ 7,706,487	$ 7,100,265
Other revenue	78,217	150,894	245,321	315,921
Net revenue	2,242,914	2,076,214	7,951,808	7,416,186
Operating expense:
Cost of revenue	1,894,001	1,602,438	5,699,089	5,258,246
Gross profit	348,913	473,776	2,252,719	2,157,940
Research and development expense	421,597	388,231	1,282,618	1,178,306
Selling, general and administrative expense	935,857	973,182	3,063,446	3,157,824
Agreement termination charges		700,000		700,000
Loss from operations	(1,008,541)	(1,587,637)	(2,093,345)	(2,878,190)
Interest income	591	3,580	3,929	19,844
Interest expense	(1,965)	(515)	(3,763)	(1,768)
Other, net		52	(43)	3,514
Loss before provision for income taxes	(1,009,915)	(1,584,520)	(2,093,222)	(2,856,600)
Provision for income taxes
Net loss	$ (1,009,915)	$ (1,584,520)	$ (2,093,222)	$ (2,856,600)
Net loss per share-basic and diluted	$ (0.05)	$ (0.07)	$ (0.10)	$ (0.13)
Weighted average number of common shares outstanding	21,207,597	21,204,162	21,205,320	21,204,162