Statements Of Stockholders' Equity (USD $)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2009		$ 212,042	$ 92,246,777	$ (78,365,812)	$ 14,093,007
Balance, shares at Dec. 31, 2009		21,204,162
Stock-based compensation			428,009		428,009
Net loss				(4,077,854)	(4,077,854)
Balance at Dec. 31, 2010		212,042	92,674,786	(82,443,666)	10,443,162
Balance, shares at Dec. 31, 2010		21,204,162
Exercise of stock options		40	4,040		4,080
Exercise of stock options, shares		4,000
Stock-based compensation			392,153		392,153
Net loss				(3,363,537)	(3,363,537)
Balance at Dec. 31, 2011		$ 212,082	$ 93,070,979	$ (85,807,203)	$ 7,475,858
Balance, shares at Dec. 31, 2011		21,208,162