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Unaudited Pro Forma Interim Financial Information - Nine Months Ended September 30, 2012 and 2011 (Details) (USD $)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Unaudited Pro Forma Interim Financial Information - Nine Months Ended September 30, 2012 and 2011 [Abstract]    
Revenues $ 2,984,436 $ 3,285,531
Net loss available to common shareholders $ (15,288,233) $ (11,031,976)
Net loss per common share - basic and diluted (in dollars per share) $ (0.31) $ (0.23)