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Basis of Presentation (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Basis of Presentation [Abstract]      
Net loss from operations $ (8,844,120) $ (8,254,949)  
Working capital 14,300,000    
Accumulated deficit $ (238,604,249)   $ (229,760,129)