SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Amortization of defined benefit pension items Prior service cost	$ (262)	$ (112)	[1]
Amortization of defined benefit pension items Actuarial losses	1,789	1,874	[1]
Amortization of defined benefit pension items Total before tax	1,527	1,762
Amortization of defined benefit pension items Tax benefit	(596)	(687)
Amortization of defined benefit pension items Net of tax	$ 931	$ 1,075

[1] These amounts were included in the computation of net periodic pension cost. See Note 11 for additional details.