Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Summary of Outstanding Potentially Dilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

For the periods presented, the following table sets forth the outstanding potentially dilutive securities that have been excluded from the calculation of diluted net loss per share because to do so would be anti-dilutive:

	Three Months Ended March 31,
	2020		2019
Warrants to purchase common stock		2,713,561		2,713,561
Common stock options		3,989,371		3,672,624
Employee stock purchase plan		24,714		6,126
Total excluded securities		6,727,646		6,392,311