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Marketable Securities (Details 3) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt securities, available-for-sale
Less than 12 months, fair value	$ 67,755	$ 78,861
Less than 12 months, gross unrealized losses	(43)	(93)
12 months or greater, fair value	0	23,460
12 months or greater, gross unrealized losses	0	(524)
Fair value	67,755	102,321
Gross unrealized losses	(43)	(617)
U.S. Government bonds and notes
Debt securities, available-for-sale
Less than 12 months, fair value	46,746	32,454
Less than 12 months, gross unrealized losses	(32)	(53)
12 months or greater, fair value	0	6,841
12 months or greater, gross unrealized losses	0	(159)
Corporate bonds, commercial paper and notes
Debt securities, available-for-sale
Less than 12 months, fair value	21,009	46,407
Less than 12 months, gross unrealized losses	(11)	(40)
12 months or greater, fair value	0	16,619
12 months or greater, gross unrealized losses	$ 0	$ (365)

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