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Equity (Details) (USD $)
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Shares issued (in shares) 2,489,227  
Warrants issued (in shares) 497,846  
Proceeds $ 6,974,750 $ 0
July 30, 2012 [Member]
    
Shares issued (in shares) 589,227  
Warrants issued (in shares) 117,846  
Unit price (in dollars per share) $ 2.97  
Proceeds 1,745,549 [1]  
August 28, 2012 [Member]
    
Shares issued (in shares) 1,900,000  
Warrants issued (in shares) 380,000  
Unit price (in dollars per share) $ 2.97  
Proceeds $ 5,229,201 [2]  
[1] Net of fees of $4,455
[2] Net of fees of $413,719