Net Loss per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Schedule of Securities Not Included in Diluted per Share Calculations

Securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows (in shares):

	Three Months Ended March 31,
		2019	2018
Options to purchase common stock		535,243	252,554
Warrants to purchase common stock		2,821,144	382,645
Total		3,356,387	635,199