Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

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

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 for the years ended December 31, 2021 and 2020:

	Year Ended December 31,
	2021	2020
Warrants to purchase common stock	1,679,673		1,841,879
Common stock options	5,013,459		4,077,259
Employee stock purchase plan	—		12,242
Total excluded securities	6,693,132		5,931,380