Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, All Other Investments [Abstract]

Schedule of Cash and Cash Equivalents, Restricted Cash and Investments

The following table summarizes the Company’s cash and held to maturity securities’ amortized cost, gross unrealized gains, gross unrealized losses, and fair value by significant investment category reported as cash and cash equivalents, restricted cash and investments as of September 30, 2023, and December 31, 2022:

	September 30, 2023
	Valuation									Reported as:
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Restricted Cash- current		Short-term Investments		Restricted Cash
Cash	$	2,414	$	-	$	-		$	2,414	$	2,414	$	-	$	-	$	-
Level 2
Money market funds		20,561		-		(2	)		20,559		19,686		525		-		350
Subtotal		20,561		-		(2	)		20,559		19,686		525		-		350
Total assets measured at fair value	$	22,975	$	-	$	(2	)	$	22,973	$	22,100	$	525	$	-	$	350

	December 31, 2022
	Valuation									Reported as:
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Restricted Cash- current		Short-term Investments		Restricted Cash
Cash	$	3,258	$	-	$	-		$	3,258	$	3,258	$	-	$	-	$	-
Level 2
Money market funds		1,615		-		-			1,615		346		525		-		744
US treasury securities		14,833		2		(2	)		14,833		4,982		-		9,851		-
Corporate debt securities		9,993		-		(6	)		9,987		-		-		9,993		-
Subtotal		26,441		2		(8	)		26,435		5,328		525		19,844		744
Total assets measured at fair value	$	29,699	$	2	$	(8	)	$	29,693	$	8,586	$	525	$	19,844	$	744