Fair Value Measurements (Tables)

9 Months Ended

Sep. 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:

	September 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	$	9,050	$	9,050	$	—	$	—	$	1,262	$	1,262	$	—	$	—
Commercial paper (a)	15,071		—		15,071		—		15,606		—		15,606		—
Corporate notes	37,669		—		37,669		—		51,328		—		51,328		—
U.S. government securities (a)	23,881		—		23,881		—		—		—		—		—
U.S. government agency bonds (a)	18,824		—		18,824		—		27,976		—		27,976		—
	$	104,495	$	9,050	$	95,445	$	—	$	96,172	$	1,262	$	94,910	$	—

(a) Approximately $6.5 million of commercial paper and $23.9 million of U.S. government securities as of September 30, 2023, and approximately $6.5 million of U.S. government agency bonds as of December 31, 2022 had an original maturity of 90 days or less and were recorded as a cash equivalent.