Cash, Cash Equivalents and Investments (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Summary of Fair Values of Cash, Cash Equivalents, and Short-Term Investments Measured at Fair Value on Recurring Basis

The following tables categorize the fair values of cash, cash equivalents, short-term investments and long-term investments measured at fair value on a recurring basis on our balance sheets (in thousands):

	December 31,
	2022		2021
Cash and cash equivalents:
Cash	$	3,986	$	40,270
Money market funds		10,988		15,954
Repurchase agreements		9,000		13,500
Government and agency notes		20,605		—
Total cash and cash equivalents	$	44,579	$	69,724
Short-term investments:
Certificates of deposit	$	5,390	$	6,928
Municipal notes		506		1,283
Corporate notes		12,411		25,675
Government and agency notes		27,295		3,192
Total short-term investments	$	45,602	$	37,078
Long-term investments
Corporate notes	$	—	$	12,722
Certificates of deposit		712		4,575
Municipal notes		—		650
Government and agency notes		2,866		1,986
Total long-term investments	$	3,578	$	19,933

Summary of Available-for-Sale Securities

The following table summarizes the available-for-sale securities (in thousands):

	Fair Value Measurements at December 31, 2022
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Money market funds	$	10,988	$	—	$	—		$	10,988
Certificates of Deposit		6,237		1		(136	)		6,102
Repurchase Agreements		9,000		—		—			9,000
Corporate notes		12,575		—		(164	)		12,411
Government and agency notes		51,020		4		(258	)		50,766
Municipal notes		510		—		(4	)		506
Total cash equivalents and investments	$	90,330	$	5	$	(562	)	$	89,773
Classified as:
Cash equivalents (original maturities within 90 days)								$	40,593
Short-term investments (maturities within one year)									45,602
Long-term investments (maturities beyond 1 year)									3,578
Total cash equivalents and investments								$	89,773

	Fair Value Measurements at December 31, 2021
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Money market funds	$	15,954	$	—	$	—		$	15,954
Certificates of Deposit		11,511		12		(20	)		11,503
Repurchase Agreements		13,500		—		—			13,500
Corporate notes		38,470		6		(79	)		38,397
Government and agency notes		5,195		—		(17	)		5,178
Municipal notes		1,934		—		(1	)		1,933
Total cash equivalents and investments	$	86,564	$	18	$	(117	)	$	86,465
Classified as:
Cash equivalents (original maturities within 90 days)								$	29,454
Short-term investments (maturities within one year)									37,078
Long-term investments (maturities beyond 1 year)									19,933
Total cash equivalents and investments								$	86,465