Cash, Cash Equivalents and Investments (Tables)

3 Months Ended

Mar. 31, 2023

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):

	March 31, 2023		December 31, 2022
Cash and cash equivalents:
Cash	$	4,449	$	3,986
Money market funds		15,863		10,988
Repurchase agreements		—		9,000
Government and agency notes		26,402		20,605
Total cash and cash equivalents	$	46,714	$	44,579
Short-term investments:
Certificates of deposit	$	5,166	$	5,390
Municipal notes		400		506
Corporate notes		7,799		12,411
Government and agency notes		30,124		27,295
Total short-term investments	$	43,489	$	45,602
Long-term investments
Certificates of deposit	$	475		712
Government and agency notes		—		2,866
Total long-term investments	$	475	$	3,578