Cash, Cash Equivalents and Investments (Tables)

9 Months Ended

Sep. 30, 2022

Cash, Cash Equivalents and Investments

Summary of fair value and the amortized cost of cash, cash equivalents and available-for-sale investments by major security type

The fair value and the amortized cost of cash, cash equivalents and available-for-sale investments by major security type consist of the following (in thousands):

			Gross		Gross		Estimated		Cash and
	Amortized		Unrealized		Unrealized		Fair		Cash		Short-term		Long-term
September 30, 2022	Cost		Gains		Losses		Value		Equivalents		Investment		Investment
Cash, cash equivalents and money market funds	$	18,904	$	—	$	—	$	18,904	$	18,904	$	—	$	—
Available-for-sale:
U.S. Treasury securities		63,480		—		(564)		62,916		1,999		60,917		—
Corporate debt securities		2,991		—		(10)		2,981		—		2,981		—
Certificates of deposit		931		—		(7)		924		—		924		—
Total	$	86,306	$	—	$	(581)	$	85,725	$	20,903	$	64,822	$	—

			Gross		Gross		Estimated		Cash and
	Amortized		Unrealized		Unrealized		Fair		Cash		Short-term		Long-term
December 31, 2021	Cost		Gains		Losses		Value		Equivalents		Investment		Investment
Cash, cash equivalents and money market funds	$	94,746	$	—	$	—	$	94,746	$	94,746	$	—	$	—
Available-for-sale:
U.S. Treasury securities		45,665		—		(97)		45,568		—		15,014		30,554
Corporate debt securities		6,093		—		(4)		6,089		—		6,089		—
Certificates of deposit		1,673		—		(1)		1,672		—		1,184		488
Total	$	148,177	$	—	$	(102)	$	148,075	$	94,746	$	22,287	$	31,042