Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Anti-Dilutive Securities Excluded from Calculation of Diluted Net Loss per Share

The shares in the table below were excluded from the calculation of diluted net loss per share, prior to the use of the treasury stock method, due to their anti-dilutive effect:

	As of June 30,
	2020	2019
Warrant	509,611	509,611
Outstanding stock options	9,632,240	7,779,744
Unvested restricted stock units	6,399,834	1,937,822
Total	16,541,685	10,227,177