Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Common stock par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	46,626,377	45,512,933
Common stock, shares outstanding	46,626,377	45,512,933
Treasury stock shares	100,000	100,000
Preferred Class A
Convertible preferred stock - par value (in Dollars per share)	$ 0.01	$ 0.01
Convertible preferred stock - shares authorized	150,000	150,000
Convertible preferred stock - shares issued	112,249	101,134
Convertible preferred stock - shares outstanding	112,249	101,134
Convertible preferred stock - liquidation preference (in Dollars)	$ 2,918,474	$ 2,629,484
Preferred Class B
Convertible preferred stock - par value (in Dollars per share)	$ 0.01	$ 0.01
Convertible preferred stock - shares authorized	125,000	125,000
Convertible preferred stock - shares issued	85,075	76,651
Convertible preferred stock - shares outstanding	85,075	76,651
Convertible preferred stock - liquidation preference (in Dollars)	1,446,275	1,303,067
Preferred Class C
Convertible preferred stock - par value (in Dollars per share)	$ 0.01	$ 0.01
Convertible preferred stock - shares authorized	200,000	200,000
Convertible preferred stock - shares issued	149,586	134,774
Convertible preferred stock - shares outstanding	149,586	134,774
Convertible preferred stock - liquidation preference (in Dollars)	$ 987,268	$ 889,508