EMPLOYEE BENEFIT PLANS - (SERP changes in benefit obligation, the funded status of the plan, components of pension expense) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in Projected Benefit Obligation:
Actuarial (Gain) Loss	$ (4,223,000)	$ (31,339,000)	$ 27,924,000
Supplemental Executive Retirement Plan ("SERP") [Member]
Change in Projected Benefit Obligation:
Benefit Obligation at Beginning of Year	13,534,000	13,402,000	10,244,000
Service Cost	31,000	35,000	31,000
Interest Cost	315,000	243,000	321,000
Actuarial (Gain) Loss	(2,932,000)	(146,000)	1,826,000
Plan Amendments	0	0	980,000
Projected Benefit Obligation at End of Year	10,948,000	13,534,000	13,402,000
Funded Status of Plan and Accrued Liability Recognized at End of Year:
Other Liabilities	10,948,000	13,534,000	13,402,000
Accumulated Benefit Obligation at End of Year	10,887,000	12,803,000	12,339,000
Components of Net Periodic Benefit Costs:
Service Cost	31,000	35,000	31,000
Interest Cost	315,000	243,000	321,000
Amortization of Prior Service Cost	277,000	277,000	327,000
Net Loss Amortization	718,000	970,000	503,000
Net Periodic Benefit Cost	$ 1,341,000	$ 1,525,000	$ 1,182,000
Weighted-Average Assumptions Used to Determine Benefit Obligation:
Discount Rate (in percent)	5.45%	2.80%	2.38%
Rate of Compensation Increase (in percent)	5.10%	4.40%	4.00%
Measurement Date	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Weighted-Average Assumptions Used to Determine Benefit Cost:
Discount Rate (in percent)	2.80%	2.38%	3.16%
Rate of Compensation Increase (in percent)	4.40%	4.00%	3.50%
Amortization Amounts from Accumulated Other Comprehensive Income:
Net Actuarial Loss (Gain)	$ (2,932,000)	$ (146,000)	$ 1,826,000
Prior Service (Benefit) Cost	(277,000)	(219,000)	895,000
Net Loss	(718,000)	(970,000)	(458,000)
Deferred Tax Expense (Benefit)	995,000	154,000	(573,000)
Other Comprehensive (Gain) Loss, net of tax	(2,932,000)	(1,181,000)	1,690,000
Amounts Recognized in Accumulated Other Comprehensive Income:
Net Actuarial Loss	(1,775,000)	1,875,000	2,991,000
Prior Service Cost	151,000	429,000	895,000
Deferred Tax Benefit	412,000	(584,000)	(985,000)
Accumulated Other Comprehensive Loss, net of tax	$ (1,212,000)	$ 1,720,000	$ 2,901,000