Cash, Cash Equivalents and Marketable Securities

12 Months Ended

Dec. 31, 2022

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Marketable Securities

Cash, cash equivalents and marketable securities consisted of the following (in thousands):


	December 31,
	2022		2021
Cash and cash equivalents:
Cash	$	39,189	$	26,442
Commercial paper	33,199		21,582
U.S. government securities	5,990		—
Money market funds	555		2,320
Corporate debt securities	140		989
Total cash and cash equivalents	79,073		51,333
Marketable securities:
U.S. government securities	106,750		60,279
Commercial paper	28,992		80,812
U.S. government agency securities	23,632		5,527
Corporate debt securities	3,168		3,576
Municipal securities	100		2,808
Total marketable securities	162,642		153,002
	$	241,715	$	204,335

The carrying amounts of the Company’s money market funds approximate their fair values due to their nature, duration and short maturities. As of December 31, 2022, all marketable securities were due in two years or less.

The amortized cost and fair value of marketable securities as of December 31, 2022 were as follows (in thousands):


	Amortized Cost		Gross Unrealized Losses		Fair Value
U.S. government securities	$	114,119	$	(1,379)	$	112,740
Commercial paper	62,262		(71)		62,191
U.S. government agency securities	23,876		(244)		23,632
Corporate debt securities	3,312		(4)		3,308
Municipal securities	101		(1)		100
Total marketable securities	$	203,670	$	(1,699)	$	201,971

Unrealized gains and losses were not significant as of December 31, 2021.