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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 9,675,200 9,361,177
Preferred stock, shares outstanding      
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares authorized 150,000,000 150,000,000
Common stock, shares issued 83,882,577 75,416,203
Common stock, shares outstanding 83,882,577 75,416,203
Series D Convertible, Preferred Stock [Member]
    
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 134,800 448,800
Preferred stock, shares issued 32,400 206,400
Preferred stock, shares outstanding 32,400 206,400