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Loss per Share (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Loss per Share [Abstract]        
Antidilutive securities excluded from computation of earnings per share (in shares) 18,748,777 17,212,805 18,597,735 17,212,805