Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Schedule of Outstanding Potentially Dilutive Securities Excluded in Calculation of Diluted Net Loss Per Share

The following table sets forth the outstanding, potentially dilutive securities that have been excluded in the calculation of diluted net loss per share because their inclusion would be anti-dilutive:

	As of June 30,
	2020	2019
Common stock options	3,740,815	2,433,115
Warrants to purchase common stock	2,349,595	125,333
Employee stock purchase program	271,012	—
Total	6,361,422	2,558,448