Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets Measured at Fair Value on Recurring Basis

Assets measured at fair value on a recurring basis are as follows (in thousands):

			Fair Value Measurements Using
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
As of June 30, 2022
Assets:
Current:
Cash equivalents	$	7,455	$	7,455	$	—	$	—
Available-for-sale investments:
Commercial paper		26,720		—		26,720		—
Corporate debt securities		44,550		—		44,550		—
Municipal bonds		8,800		—		8,800		—
Total available-for-sale investments		80,070		—		80,070		—
Total assets measured at fair value	$	87,525	$	7,455	$	80,070	$	—

			Fair Value Measurements Using
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
As of December 31, 2021
Assets:
Current:
Cash equivalents	$	2,052	$	2,052	$	—	$	—
Available-for-sale investments:
Commercial paper		36,921		—		36,921		—
Corporate debt securities		55,713		—		55,713		—
Municipal bonds		12,941		—		12,941		—
Total available-for-sale investments		105,575		—		105,575		—
Total assets measured at fair value	$	107,627	$	2,052	$	105,575	$	—

Schedule of Available-for-sale Investments

As of June 30, 2022 and December 31, 2021, available-for-sale investments are detailed as follows (in thousands):

		June 30, 2022
	Contractual Maturity	Gross Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Market Value
Available-for-sale investments:
Commercial paper	Within 1 year	$	26,864	$	—	$	(144	)	$	26,720
Corporate debt securities	1 to 2 years		45,082		—		(532	)		44,550
Municipal bonds	1 to 2 years		8,883		—		(83	)		8,800
		$	80,829	$	—	$	(759	)	$	80,070

		December 31, 2021
	Contractual Maturity	Gross Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Market Value
Available-for-sale investments:
Commercial paper	Within 1 year	$	36,956	$	—	$	(35	)	$	36,921
Corporate debt securities	1 to 2 years		55,859		—		(146	)		55,713
Municipal bonds	1 to 2 years		12,973		—		(32	)		12,941
		$	105,788	$	—	$	(213	)	$	105,575