Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Schedule of Number of Shares of Common Stock Underlying Potentially Dilutive Securities

As of March 31, 2019 and 2018, the number of shares of common stock underlying potentially dilutive securities are comprised of:

	March 31,
	2019		2018
Warrants		—		312,426
Options to purchase common stock and unvested, undelivered restricted stock units		1,166,875		526,100
Total		1,166,875		838,526