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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Sep. 30, 2013
Jan. 14, 2013
Dec. 31, 2012
Common stock, par value (in dollars per share) $ 0.001 $ 0.001 $ 0.001
Common stock, shares authorized 50,000,000   50,000,000
Common stock, shares issued 47,362,047   36,490,345
Common stock, shares outstanding 47,362,047   36,490,345