Condensed Balance Sheets Parenthetical (USD $)	Jun. 30, 2011	Dec. 31, 2010
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	60,000,000	60,000,000
Preferred stock, shares issued	15,975,983	16,205,268
Preferred stock, shares outstanding	15,975,983	16,205,268
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	19,284,516	18,751,128
Common stock, shares outstanding	19,284,516	18,751,128