Marketable Securities

12 Months Ended

Dec. 31, 2023

Marketable Securities [Abstract]

Marketable securities

3. Marketable securities

The following is summary of marketable securities that the Company measures at fair value (in thousands):

	Fair Value at December 31, 2023
	Level 1		Level 2		Level 3		Total
Corporate bonds	$	-	$	412	$	-	$	412
Money market funds(1)		3,948		-		-		3,948
Accrued income		16		-		-		16
Total marketable securities	$	3,964	$	412	$	-	$	4,376

	Fair Value at December 31, 2022
	Level 1		Level 2		Level 3		Total
U.S. Treasury obligations	$	97	$	-	$	-	$	97
U.S. government agencies		-		1,250		-		1,250
Corporate and foreign bonds		-		7,808		-		7,808
Money market funds(1)		607		-		-		607
Accrued income		65		-		-		65
Total marketable securities	$	769	$	9,058	$	-	$	9,827

⁽¹⁾ Money market funds are included in cash and cash equivalents in the balance sheets.

As of December 31, 2023 and 2022, the Company reported accrued interest receivable related to marketable securities of less than $0.1 million. These amounts are recorded in other assets on the Balance Sheets and are not included in the carrying value of the marketable securities.

As of December 31, 2023 and 2022, the Company recorded unrealized losses attributable to changes in marketable securities of $0 and $0.4 million, respectively. These unrealized losses were recorded on the balance sheets as accumulated other comprehensive loss.

As of December 31, 2023 and 2022, the amortized cost of these securities was $0.4 million and $9.4 million, respectively.