BENEFIT PLANS - Amounts included in other comprehensive income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
SERP and DRP
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 98	$ 201
Interest cost	87	79
Amortization:
Past service liability	0	0
Net loss (gain)	134	213
Net periodic benefit cost	319	493
Post Retirement
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	39	38
Amortization:
Past service liability	0	0
Net loss (gain)	(6)	(3)
Net periodic benefit cost	$ 34	$ 36