Cash and Investments (Tables)

12 Months Ended

Dec. 31, 2021

Cash and Cash Equivalents [Abstract]

Schedule of Securities Classified as Cash and Investments

Securities classified as cash and investments as of December 31, 2021 and 2020 are summarized below (in thousands). Estimated fair value is based on quoted market prices for these investments.


	December 31, 2021
			Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
Cash and cash equivalents:
Money market funds	$	71,175	$	—	$	—	$	71,175

Cash	1,253		—		—		1,253
Total cash and cash equivalents	72,428		—		—		72,428
Short-term investments:
Commercial paper	$	31,936	$	1	$	(2)	$	31,935
Corporate bonds	7,025		—		(3)		7,022
Asset-backed securities	5,306		—		(2)		5,304
U.S. treasury notes	—		—		—		—
Total short-term investments	44,267		1		(7)		44,261


Total cash equivalents and investments	$	116,695	$	1	$	(7)	$	116,689


	December 31, 2020
			Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
Cash and cash equivalents:
Money market funds	$	88,151	$	—	$	—	$	88,151
Commercial paper	2,100		—		—		2,100

Cash	781		—		—		781
Total cash and cash equivalents	91,032		—		—		91,032
Short-term investments
Commercial paper	$	60,631	$	2	$	(4)	$	60,629
Corporate bonds	24,547		3		(6)		24,544
U.S. government-sponsored agency bonds	9,277		2		—		9,279
U.S. treasury notes	1,000		—		—		1,000
Total short-term investments	95,455		7		(10)		95,452
Long-term investments:
Corporate bonds	$	2,115	$	—	$	(1)	$	2,114
Total cash equivalents and investments	$	188,602	$	7	$	(11)	$	188,598

Schedule of Amortized Cost and Estimated Fair Value of Available-for-Sale Debt Securities by Contractual Maturity

As of December 31, 2021, the amortized cost and estimated fair value of available-for-sale debt securities by contractual maturity were as follows (in thousands):


	Amortized Cost		Fair Value
Due in one year or less	$	44,267	$	44,261