Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit
Beginning Balance at Dec. 31, 2011	$ 4,120,393	$ 29,578	$ 99,709,574	$ (47,183)	$ (95,571,576)
Beginning Balance, Shares at Dec. 31, 2011		29,577,146
Stock-based compensation	1,373,970		1,373,970
Stock-based compensation, shares
Exercise of stock options	1,873,397	729	1,872,668
Exercise of stock options, shares	(728,872)	728,872
Warrant exercises	135,000	45	134,955
Warrant exercises, Shares	45,000	45,000
Shares issued upon vesting of equity awards, Shares		57,500
Shares issued upon vesting of equity awards, Values		58	(58)
Net income	3,527,187				3,527,187
Ending Balance at Sep. 30, 2012	$ 11,029,947	$ 30,410	$ 103,091,109	$ (47,183)	$ (92,044,389)
Ending Balance, Shares at Sep. 30, 2012		30,408,518