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Summary of Significant Accounting Policies (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Net Loss per Common Share [Abstract]    
Antidilutive securities excluded from computation of earnings per share (in shares) 6,597,243 5,717,476
Stock Options to Purchase Common Stock [Member]    
Net Loss per Common Share [Abstract]    
Antidilutive securities excluded from computation of earnings per share (in shares) 6,193,461 5,117,292
Warrants to Purchase Common Stock [Member]    
Net Loss per Common Share [Abstract]    
Antidilutive securities excluded from computation of earnings per share (in shares) 403,782 600,184
ASU 2016 - 09 [Member]    
Accounting Standards Adopted [Abstract]    
Tax benefit $ (84,786)