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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Condensed Consolidated Balance Sheets    
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 150,000,000 75,000,000
Common stock, shares issued 52,799,606 39,350,561
Common stock, shares outstanding 52,799,606 39,350,561