TREASURY STOCK (Schedule of change in treasury stock) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) shares
Balance, beginning of period, shares	9,426
Balance, end of period, shares	9,191
Treasury Stock [Member]
Balance, beginning of period | $	$ 126,772
Balance, beginning of period, shares	9,426,399
Ordinary shares issued for Broadsmart acquisition | $	$ (3,609)
Ordinary shares issued for Broadsmart acquisition, shares	(233,402)
Ordinary shares issued due to vesting of restricted stock units | $	$ (25)
Ordinary shares issued due to vesting of restricted stock units, shares	(2,016)
Balance, end of period | $	$ 123,138
Balance, end of period, shares	9,190,981