Summary of Significant Accounting Policies (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Net Loss per Common Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	7,471,162	6,724,077
Stock Options to Purchase Common Stock [Member]
Net Loss per Common Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	7,392,566	6,320,295
Warrants to Purchase Common Stock [Member]
Net Loss per Common Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	78,596	403,782
ASU 2016 - 09 [Member]
Accounting Standards Adopted [Abstract]
Tax benefit	$ (84,786)