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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Jun. 30, 2013
Dec. 31, 2012
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]    
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 51,173,919 48,352,651
Common stock, shares outstanding 51,173,919 48,352,651