Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Net Loss per Common Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	7,420,064	6,597,243
Stock Options to Purchase Common Stock [Member]
Net Loss per Common Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	7,341,468	6,193,461
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)