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Consolidated Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Series B Convertible Preferred Stock
Dec. 31, 2012
Series B Convertible Preferred Stock
Preferred stock, par value $ 0.001 $ 0.001    
Preferred stock, shares authorized 5,000,000 5,000,000 43,000 0
Preferred stock, shares issued 0 0 0 0
Preferred stock, shares outstanding 0 0 0 0
Common stock, par value $ 0.001 $ 0.001    
Common stock, shares authorized 350,000,000 250,000,000    
Common stock, shares issued 262,796,000 182,792,000    
Common stock, shares outstanding 262,796,000 182,792,000