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Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2023

Marketable Securities

Schedule of amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security

		Amortized cost				Gross unrealized holding gains				Gross unrealized holding losses				Estimated fair value
December 31, 2023
Available-for-sale securities:
US Treasury securities		$	1,804			$	—			$	(1	)		$	1,803
Mutual funds			1,498				7				—				1,505
Certificates of deposit			103				—				—				103
Corporate debt securities			1,007				—				(22	)			985
Total available-for-sale securities		$	4,412			$	7			$	(23	)		$	4,396

Schedule of maturities of marketable securities classified as available-for-sale securities

		Amortized cost				Estimated fair value
Due within one year		$	3,497			$	3,480
Due after one year through five years			915				916
Total available-for-sale securities		$	4,412			$	4,396

Schedule of available-for-sale marketable securities with continuous gross unrealized loss position

		Less than 12 months								More than 12 months								Total
		Estimated				Gross				Estimated				Gross				Estimated				Gross
		fair value				unrealized				fair value				unrealized				fair value				unrealized
						holding								holding								holding
						losses								losses								losses
As of December 31, 2023
US Treasury Securities		$	1,803			$	(1	)			-			$	-			$	1,803			$	(1	)
Mutual Funds			1,505				-				-				-				1,505				-
Certificates of Deposit			103				-				-				-				103				-
Corporate Debt securities			985				(22	)			-				-				985				(22	)
		$	4,396			$	(23	)		$	-			$	-			$	4,396			$	(23	)