Investments and Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2024

Investments and Fair Value Measurements

Schedule of available-for-sale securities

		September 30, 2024
				Gross		Gross
		Amortized		Unrealized		Unrealized		Estimated
(In thousands)		Cost		Gains		Losses		Fair Value
US government securities	Level 1	$	33,622	$	27	$	—	$	33,649
Corporate notes	Level 2		3,079		1		—		3,080
Commercial paper	Level 2		34,222		22		—		34,244
Marketable securities			70,923		50		—		70,973
Money market funds	Level 1		11,666		—		—		11,666
Total		$	82,589	$	50	$	—	$	82,639

		December 31, 2023
				Gross		Gross
		Amortized		Unrealized		Unrealized		Estimated
(In thousands)		Cost		Gains		Losses		Fair Value
US government securities	Level 1	$	29,848	$	—	$	(29)	$	29,819
US government agency securities	Level 2		4,428		—		(8)		4,420
Corporate notes	Level 2		28,670		4		(32)		28,642
Marketable securities			62,946		4		(69)		62,881
Money market funds	Level 1		26,179		—		—		26,179
Total		$	89,125	$	4	$	(69)	$	89,060

Schedule of Available for sale debt securities with unrealized losses

	December 31, 2023
	Less than 12 Months				Greater than 12 Months				Total
			Gross				Gross				Gross
	Estimated		Unrealized		Estimated		Unrealized		Estimated		Unrealized
(In thousands)	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
US government securities	$	29,819	$	(29)	$	—	$	—	$	29,819	$	(29)
US government agency securities		4,420		(8)		—		—		4,420		(8)
Corporate notes		23,641		(32)		—		—		23,641		(32)
Total	$	57,880	$	(69)	$	—	$	—	$	57,880	$	(69)

Schedule of Changes to the Contingent liability

(In thousands)
Balance at December 31, 2023	$	27,788
Non-cash interest expense accretion		1,903
Balance at September 30, 2024	$	29,691