EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Employee Retirement Plan [Member]
Net periodic pension cost
Service cost	$ 116	$ 99	$ 232	$ 198
Interest cost	115	130	230	261
Recognized net actuarial loss	156	61	312	122
Net period benefit cost	387	290	774	581
Other Postretirement Benefit Plan
Net periodic pension cost
Service cost	7	12	14	24
Interest cost	31	37	62	74
Recognized net actuarial loss	20	6	39	12
Amortization of prior service credit	(6)	(6)	(12)	(12)
Net period benefit cost	$ 52	$ 49	$ 103	$ 98