CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS
Preferred stock, Authorized shares	20,000,000	20,000,000
Preferred stock, Outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, Authorized shares	100,000,000	100,000,000
Common stock, Outstanding shares	54,279,906	46,094,082