Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of valuation of the company's investments and financial instruments that are measured at fair value on a recurring basis

The following table summarizes the valuation of the Company’s financial instruments that are measured at fair value on a recurring basis:

	June 30, 2023								December 31, 2022
			Fair value measurement category								Fair value measurement category
(In thousands)	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets:
Money market funds	$	7,620	$	7,620	$	—	$	—	$	1,262	$	1,262	$	—	$	—
Commercial paper	12,479		—		12,479		—		15,606		—		15,606		—
Corporate notes	43,372		—		43,372		—		51,328		—		51,328		—
U.S. government securities (a)	22,382		—		22,382		—		—		—		—		—
U.S. government agency bonds (b)	17,467		—		17,467		—		27,976		—		27,976		—
	$	103,320	$	7,620	$	95,700	$	—	$	96,172	$	1,262	$	94,910	$	—

(a) Approximately $19.9 million of U.S. government securities had an original maturity of 90 days or less and were recorded as a cash equivalent as of June 30, 2023.

(b) Approximately $6.5 million of U.S. government agency bonds had an original maturity of 90 days or less and were recorded as a cash equivalent as of December 31, 2022.