Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Summary of Cash Equivalents and Marketable Securities Measured at Fair Value

The following tables summarize the Company’s cash equivalents and marketable securities measured at fair value (in thousands):

			Fair Value Measurements Using
As of September 30, 2021	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Marketable securities:
Corporate debt securities	$	3,016	$	—	$	3,016	$	—
Total	$	3,016	$	—	$	3,016	$	—

			Fair Value Measurements Using
As of December 31, 2020	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents:
Negotiable certificates of deposit	$	720	$	—	$	720	$	—
Marketable securities:
Corporate debt securities		6,679		—		6,679		—
Total	$	7,399	$	—	$	7,399	$	—