Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

Accounting Policies [Abstract]

Schedule of Potentially Dilutive Securities not Included in Calculation of Diluted Net Loss Per Share

Potentially dilutive securities not included in the calculation of diluted net loss per share, because to do so would be anti-dilutive, are as follows (in common stock equivalent shares; in thousands):

	March 31,
	2022		2021
Common stock options issued and outstanding		8,284		5,523
Common stock subject to repurchase or forfeiture		13		48
ESPP shares pending issuance		23		13
Total		8,320		5,584