MARKETABLE SECURITIES AND TIME DEPOSITS (Tables)

3 Months Ended

Mar. 31, 2013

Summary of Available-for-Sale Securities

The following is a summary of available-for-sale securities at March 31, 2013 and December 31, 2012:

	Amortized cost				Unrealized gains (losses), net				Fair value
	March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012		March 31, 2013		December 31, 2012
	(Unaudited)		(Audited)		(Unaudited)		(Audited)		(Unaudited)		(Audited)
Short term deposits	$	2,785	$	2,708	$	—	$	—	$	2,785	$	2,708
U.S. GSE securities		2,957		1,506		3		4		2,960		1,510
Corporate obligations		93,735		93,398		1,119		918		94,854		94,316
	$	99,477	$	97,612	$	1,122	$	922	$	100,599	$	98,534

Amortized Cost of Marketable Debt Securities and Time Deposits by Contractual Maturities

The amortized cost of marketable debt securities and time deposits at March 31, 2013, by contractual maturities, is shown below:

			Unrealized gains (losses)
	Amortized cost		Gains		Losses			Fair value
Due in one year or less	$	17,684	$	44	$	(1	)	$	17,727
Due after one year to six years		81,793		1,183		(104	)		82,872
	$	99,477	$	1,227	$	(105	)	$	100,599