FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The Group's financial assets and liabilities measured at fair value on a recurring basis, consisted of the following types of instruments as of the following dates:

	December 31, 2016
	Fair value measurements using input type
	Level 2		Level 3		Total
Financial liabilities related to foreign currency derivative hedging contracts	$	(142)	$	-	$	(142)
Marketable securities		36,318		-		36,318
Earn-Out liability related to the acquisition of ACS		-		(487)		(487)
Total financial net assets (liabilities)	$	36,176	$	(487)	$	35,689

	December 31, 2017
	Fair value measurements using input type
	Level 2		Level 3		Total
Marketable securities		27,562		-		27,562
Earn-Out liability related to the acquisition of ACS		-		(378)		(378)
Total financial net assets (liabilities)	$	27,562	$	(378)	$	27,184

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Fair value measurements using significant unobservable inputs (Level 3):

Balance at January 1, 2017	$	(487)
Adjustment due to change in the forecast of earn-out consideration		118
Adjustment due to time change value		(9)
Balance at December 31, 2017	$	(378)