Fair Value Measurements

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

NOTE 4:- FAIR VALUE MEASUREMENTS

The following is a summary of marketable securities:

	December 31, 2019
	Amortized cost		Gross unrealized gain		Gross unrealized loss			Fair value
Matures within one year:
Corporate debentures	$	27,624	$	24	$	(11	)	$	27,637
Government debentures		4,930		-		-			4,930
		32,554		24		(11	)		32,567
Matures after one year through three years:
Corporate debentures		91,887		575		(117	)		92,345
Government debentures		3,030		21		(3	)		3,048
		94,917		596		(120	)		95,393
Total	$	127,471	$	620	$	(131	)	$	127,960
	December 31, 2018
	Amortized cost		Gross unrealized gain		Gross unrealized loss			Fair value
Matures within one year:
Corporate debentures	$	3,999	$	-	$	(18	)	$	3,981
		3,999		-		(18	)		3,981
Matures after one year through three years:
Corporate debentures		33,698		29		(346	)		33,381
Government debentures		11,360		-		(138	)		11,222
		45,058		29		(484	)		44,603
Total	$	49,057	$	29	$	(502	)	$	48,584

Investments with continuous unrealized losses for less than 12 months and 12 months or greater and their related fair values were as follows:

	December 31, 2019
	Less than 12 months					12 months or greater					Total
	Fair value		Unrealized Losses			Fair value		Unrealized Losses			Fair value		Unrealized Losses
Corporate debentures	$	57,753	$	(127	)	$	3,801	$	(1	)	$	61,554	$	(128	)
Government debentures		2,552		(3	)		-		-			2,552		(3	)
Total	$	60,305	$	(130	)	$	3,801	$	(1	)	$	64,106	$	(131	)

	December 31, 2018
	Less than 12 months					12 months or greater					Total
	Fair value		Unrealized Losses			Fair value		Unrealized Losses			Fair value		Unrealized Losses
Corporate debentures	$	12,017	$	(126	)	$	16,547	$	(238	)	$	28,564	$	(364	)
Government debentures		8,864		(117	)		2,357		(21	)		11,221		(138	)
Total	$	20,881	$	(243	)	$	18,904	$	(259	)	$	39,785	$	(502	)

The below table sets forth the Company’s assets and liabilities that were measured at fair value as of December 31, 2019 and 2018 by level within the fair value hierarchy.

	December 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Marketable securities	$	-	$	127,960	$	-	$	127,960
Foreign currency derivative contracts		-		16		-		16
Total financial assets	$	-	$	127,976	$	-	$	127,976
	December 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Marketable securities	$	-	$	48,584	$	-	$	48,584
Total financial assets	$	-	$	48,584	$	-	$	48,584
Liabilities:
Foreign currency derivative contracts	$	-	$	111	$	-	$	111
Total financial liabilities	$	-	$	111	$	-	$	111