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Unaudited Pro Forma Interim Financial Information -Three Months Ended March 31, 2013 and 2012 (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Unaudited Pro Forma Interim Financial Information -Three Months Ended March 31, 2013 and 2012 [Abstract]    
Revenues $ 614,473 $ 808,790
Net loss available to common shareholders $ (7,719,263) $ (5,005,896)
Net loss per common share - basic and diluted (in dollars per share) $ (0.15) $ (0.1)