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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
Sep. 30, 2011
Dec. 31, 2010
Stockholders' equity:  
Common stock, par value$ 0.001$ 0.001
Common stock, shares authorized500,000,000500,000,000
Common stock, shares issued26,465,70915,480,302
Common stock, shares outstanding26,465,70915,480,302