Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

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

As of June 30, 2019 and 2018, the number of shares of common stock underlying potentially dilutive securities are comprised of:

	June 30,
	2019		2018
Warrants		—		10,974
Options to purchase common stock and unvested, unsettled restricted stock units		998,506		666,100
Total		998,506		677,074