MARKETABLE SECURITIES (Tables)

3 Months Ended

Mar. 31, 2017

Cash and Cash Equivalents [Abstract]

Summary of Available-for-Sale Marketable Securities

The following is a summary of available-for-sale marketable securities:

	March 31, 2017 (Unaudited)
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
Available-for-sale - matures within one year:
Corporate bonds	$	11,565	$	6	$	(23	)	$	11,548
		11,565		6		(23	)		11,548
Available-for-sale - matures after one year through five years:
Government bonds		501		—		(7	)		494
Corporate bonds		52,561		29		(377	)		52,213
		53,062		29		(384	)		52,707
Total	$	64,627	$	35	$	(407	)	$	64,255

	December 31, 2016 (Audited)
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
Available-for-sale - matures within one year:
Corporate bonds	$	9,456	$	4	$	(15	)	$	9,445
		9,456		4		(15	)		9,445
Available-for-sale - matures after one year through five years:
Government bonds		501		—		(4	)		497
Corporate bonds		52,490		3		(567	)		51,926
		52,991		3		(571	)		52,423
Total	$	62,447	$	7	$	(586	)	$	61,868

Summary of Gross Unrealized Losses and Fair Values on Investments

The following table presents gross unrealized losses and fair values for those investments that were in an unrealized loss position as of March 31, 2017 and December 31, 2016, and the length of time that those investments have been in a continuous loss position:

	Less than 12 months					12 months or greater
	Fair value		Gross unrealized loss			Fair value		Gross unrealized loss
As of March 31, 2017 (unaudited)	$	46,486	$	(385	)	$	4,397	$	(22	)
As of December 31, 2016	$	48,663	$	(557	)	$	4,875	$	(29	)

Summary of Gross Realized Gain and Loss from Sale of Available-for-Sale Marketable Securities

The following table presents gross realized gains and losses from sale of available-for-sale marketable securities:

	Three months ended March 31,
	2017 (unaudited)			2016 (unaudited)
Gross realized losses from sale of available-for-sale marketable securities	$	(38	)	$	(30	)