Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2022

Financial Instruments, Owned, at Fair Value, by Type, Alternative [Abstract]

Schedule of available-for-Sale financial instruments

The following is a summary of available-for-sale financial instruments, as of June 30, 2022 and December 31, 2021 (in thousands):

	June 30, 2022
	Amortized Cost		Unrealized Gain		Unrealized Losses			Fair Value
Cash equivalents:
Corporate securities	$	2,831	$	-	$	-		$	2,831
U.S. treasury and agency securities		1,001		-		-			1,001
Foreign governments		2,790		-		-			2,790
Total cash equivalents		6,622		-		-			6,622
Marketable securities:
Corporate securities (1)		144,930		15		(870	)		144,075
U.S. treasury and agency securities		64,162		-		(259	)		63,903
Total marketable securities	$	209,092	$	15	$	(1,129	)	$	207,978
(1) Comprised primarily of corporate bonds and commercial paper

	December 31, 2021
	Amortized Cost		Unrealized Gain		Unrealized Losses			Fair Value
Corporate securities	$	7,709	$	-	$	(1	)	$	7,708
U.S. treasury and agency securities		6,060		-		(3	)		6,057
Total marketable securities	$	13,769	$	-	$	(4	)	$	13,765

Schedule of fair values of available-for-sale financial instruments

As of June 30, 2022, the fair values of available-for-sale financial instruments, by remaining contractual maturity, were as follows (in thousands):

Due within one year	$	138,725
Due in one to five years		75,875
Total	$	214,600