EMPLOYEE BENEFIT PLAN (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Amount recognized in consolidated balance sheet for benefit obligations (included in other long-term obligations)	$ 974		$ 958
Components of net periodic benefit cost [Abstract]
Service cost	10	$ 13
Interest cost	9	9
Amortization of prior service credit	(2)	(5)
Amortization of gain	(3)	0
Net periodic benefit cost	14	$ 17
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Historical cash payments for retirement medical plan claims per year	$ 100