Marketable Debt Securities (Tables)

3 Months Ended

Mar. 31, 2024

Marketable Debt Securities [Abstract]

Schedule of Marketable Debt Securities

Marketable debt securities, all of which were classified as available-for-sale, consist of the following:

	As of March 31, 2024
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Corporate bonds - presented in marketable debt securities	$	2,993	$	-	$	(1	)	$	2,992
Total	$	2,993	$	-	$	(1	)	$	2,992

	As of December 31, 2023
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Corporate bonds - presented in marketable debt securities	$	23,525	$	-	$	(30	)	$	23,495
Agency bonds - presented in marketable debt securities		2,500		-		(1	)		2,499
Total	$	26,025	$	-	$	(31	)	$	25,994

Schedule of Marketable Debt Securities in a Loss Position

Marketable debt securities in a loss position consist of the following:

	As of March 31, 2024
	In Continuous Loss Position Less Than 12 Months					In Continuous Loss Position Greater Than 12 Months				Total
	Estimated Fair Value		Unrealized Losses			Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
Corporate bonds – presented in marketable debt securities	$	1,993	$	(1	)	$	-	$	-	$	1,993	$	(1	)
Total	$	1,993	$	(1	)	$	-	$	-	$	1,993	$	(1	)

	As of December 31, 2023
	In Continuous Loss Position Less Than 12 Months					In Continuous Loss Position Greater Than 12 Months					Total
	Estimated Fair Value		Unrealized Losses			Estimated Fair Value		Unrealized Losses			Estimated Fair Value		Unrealized Losses
Corporate bonds – presented in marketable debt securities	$	19,498	$	(27	)	$	3,997	$	(3	)	$	23,495	$	(30	)
Agency bonds – presented in marketable debt securities		2,499		(1	)		-		-			2,499		(1	)
Total	$	21,997	$	(28	)	$	3,997	$	(3	)	$	25,994	$	(31	)

Schedule of Investment Income

Interest and investment income consist of the following:

	For the Three Months Ended March 31,
	2024		2023
Interest income	$	679	$	605
Accretion/(Amortization) of discount/premium, net		68		82
Dividend income		9		-
Total interest and investment income	$	756	$	687