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Condensed Consolidated Balance Sheets [Parenthetical] (USD $)
Jun. 30, 2014
Dec. 31, 2013
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common Stock, Shares Authorized 150,000,000 500,000,000
Common stock, shares issued 38,161,964 34,336,235
Common stock, shares outstanding 38,120,655 34,294,926
Treasury stock 41,309 41,309