PENSION PLAN - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) installment	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	May 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Pension expense	$ 286	$ 256	$ 273
Supplemental Employee Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.00%
Benefit obligation	$ 1,800
Number of equal consecutive installments | installment	180
Consecutive installments, amount	$ 10
Accrued liability	377	1
Service cost	$ 376	$ 1
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.23%	3.55%	4.05%	4.46%
Benefit obligation	$ 9,416	$ 10,058	$ 9,021
Service cost	0	$ 0	$ 0
Estimated net loss (gain) expected to be amortized from accumulated other comprehensive income into net periodic cost	$ 271