EMPLOYEE BENEFIT PLANS - Amounts Recognized in Accompanying Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Accrued benefit liability	$ (451)	$ (479)
Transition obligation and unrealized gain	(307)	(339)
Net amount recognized in the consolidated balance sheets	$ (758)	$ (818)