MARKETABLE SECURITIES AND FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2017

Marketable Securities and Fair Value Measurements [Abstract]

Schedule of fair value of available-for-sale marketable securities

March 31, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Security type
Corporate debt securities-short term	$	9,305	$	—	$	(2	)	$	9,303
Total available-for-sale marketable securities	$	9,305	$	—	$	(2	)	$	9,303

December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Security type
Corporate debt securities-short term	$	15,857	$	7	$	(5	)	$	15,859
Total available-for-sale marketable securities	$	15,857	$	7	$	(5	)	$	15,859

Schedule of assets measured at fair value on a recurring basis

	March 31, 2017		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents	$	2,947	$	2,947	$	—	$	—
Corporate debt securities-short term		9,303		—		9,303		—
Total	$	12,250	$	2,947	$	9,303	$	—

	December 31, 2016		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents	$	12,923	$	12,923	$	—	$	—
Corporate debt securities-short term		15,859		—		15,859		—
Total	$	28,782	$	12,923	$	15,859	$	—