Investments (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Marketable Securities [Line Items]
Amortized Cost	$ 78,610,000		$ 78,610,000		$ 65,852,000
Gross Unrealized Gains	5,000		5,000		1,000
Gross Unrealized Losses	(278,000)		(278,000)		(101,000)
Credit Losses	0		0		0
Estimated Fair Value	78,337,000		$ 78,337,000		$ 65,752,000
Remaining contractual maturity period			3 years		3 years
Impairments of assets	0	$ 0	$ 0	$ 0
Short-term investments
Marketable Securities [Line Items]
Estimated Fair Value	52,217,000		52,217,000		$ 40,469,000
Long-term investments
Marketable Securities [Line Items]
Estimated Fair Value	26,120,000		26,120,000		25,283,000
Commercial paper
Marketable Securities [Line Items]
Amortized Cost	12,681,000		12,681,000		3,638,000
Gross Unrealized Gains	0		0		1,000
Gross Unrealized Losses	(16,000)		(16,000)		0
Credit Losses	0		0		0
Estimated Fair Value	12,665,000		12,665,000		3,639,000
Corporate notes
Marketable Securities [Line Items]
Amortized Cost	56,295,000		56,295,000		47,228,000
Gross Unrealized Gains	5,000		5,000		0
Gross Unrealized Losses	(238,000)		(238,000)		(69,000)
Credit Losses	0		0		0
Estimated Fair Value	56,062,000		56,062,000		47,159,000
U.S. government securities
Marketable Securities [Line Items]
Amortized Cost	1,497,000		1,497,000		983,000
Gross Unrealized Gains	0		0		0
Gross Unrealized Losses	0		0		0
Credit Losses	0		0		0
Estimated Fair Value	1,497,000		1,497,000		983,000
U.S. government agency bonds
Marketable Securities [Line Items]
Amortized Cost	8,137,000		8,137,000		14,003,000
Gross Unrealized Gains	0		0		0
Gross Unrealized Losses	(24,000)		(24,000)		(32,000)
Credit Losses	0		0		0
Estimated Fair Value	$ 8,113,000		$ 8,113,000		$ 13,971,000