Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details)

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Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Earnings Per Share [Abstract]        
Net loss $ (10,300,351) $ (5,834,822) $ (17,641,370) $ (12,823,894)
Preferred stock dividends   (25,000)   (50,000)
Net loss attributable to common stockholders $ (10,300,351) $ (5,859,822) $ (17,641,370) $ (12,873,894)
Weighted average shares outstanding (basic and diluted) 118,260,288 94,664,659 116,024,366 94,368,690
Loss per common share (basic and diluted) $ (0.09) $ (0.06) $ (0.15) $ (0.14)