Marketable Debt Securities (Tables)

12 Months Ended

Dec. 31, 2023

Marketable Debt Securities [Abstract]

Schedule of Marketable Debt Securities in a Loss Position

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

	December 31, 2022
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Corporate bonds - presented in marketable debt securities	$	60,790	$	-	$	(547	)	$	60,243
Corporate bonds - presented in marketable debt securities, non-current		18,027		-		(141	)		17,886
Total	$	78,817	$	-	$	(688	)	$	78,129

Schedule of Marketable Debt Securities in a Loss Position

Marketable debt securities in a loss position consist of the following 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
December 31, 2023
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 Interest and Investment Income

Interest and investment income consists of the following for the year ended:

	December 31,
	2023		2022
Interest income	$	2,727	$	2,230
Accretion/(Amortization) of discount/premium, net		454		(1,137	)
Dividend income		12		-
Realized gain/loss		-		17
Total interest and investment income	$	3,193	$	1,110