CONDENSED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Convertible preferred stock, par value	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized	6,000,000	6,000,000
Convertible preferred stock, shares issued	5,500,000	5,000,000
Convertible preferred stock, shares outstanding	5,500,000	5,000,000
Convertible preferred stock, liquidation preference	$ 24,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	36,761,864	36,709,706
Common stock, shares outstanding	36,761,864	36,709,706