STATEMENTS OF STOCKHOLDERS' DEFICIT (USD $)	Total	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2010	$ (6,658,096)	$ 5,000	$ 36,594	$ 90,851,709	$ (97,551,399)
Beginning Balance (in shares) at Dec. 31, 2010		5,000,000	36,594,799
Net loss	(5,025,182)				(5,025,182)
Common stock issued:
Employee stock purchase plan (in shares)			114,907
Employee stock purchase plan	32,955		116	32,839
Stock-based compensation expense	227,091			227,091
Ending Balance at Dec. 31, 2011	(11,423,231)	5,000	36,710	91,111,640	(102,576,581)
Ending Balance (in shares) at Dec. 31, 2011		5,000,000	36,709,706
Net loss	(5,120,084)				(5,120,084)
Private placement of preferred stock, net of offering costs of $386,030 (in shares)		500,000
Private placement of preferred stock, net of offering costs of $386,030	2,613,970	500		2,613,470
Warrants issued in connection with private placement of preferred stock	104,907			104,907
Common stock issued:
Employee stock purchase plan (in shares)			52,158
Employee stock purchase plan	8,810		52	8,758
Stock-based compensation expense	191,828			191,828
Ending Balance at Dec. 31, 2012	$ (13,623,800)	$ 5,500	$ 36,762	$ 94,030,603	$ (107,696,665)
Ending Balance (in shares) at Dec. 31, 2012		5,500,000	36,761,864