Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 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:

	March 31, 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	$	39,906	$	39,906	$	—	$	—	$	1,262	$	1,262	$	—	$	—
Commercial paper	14,258		—		14,258		—		15,606		—		15,606		—
Corporate notes	42,598		—		42,598		—		51,328		—		51,328		—
U.S. government securities	4,925		—		4,925		—		—		—		—		—
U.S. government agency bonds (a)	15,571		—		15,571		—		27,976		—		27,976		—
	$	117,258	$	39,906	$	77,352	$	—	$	96,172	$	1,262	$	94,910	$	—

(a) 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.