Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT PLANS - SERP changes in benefit obligation, the funded status of the plan, components of pension expense (Details)

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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, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in Projected Benefit Obligation:      
Actuarial (Gain) Loss $ (31,339,000) $ 27,924,000 $ 7,642,000
Supplemental Executive Retirement Plan ("SERP") [Member]      
Change in Projected Benefit Obligation:      
Benefit Obligation at Beginning of Year 13,402,000 10,244,000 8,860,000
Service Cost 35,000 31,000 0
Interest Cost 243,000 321,000 349,000
Actuarial (Gain) Loss (146,000) 1,826,000 1,035,000
Plan Amendments 0 980,000 0
Projected Benefit Obligation at End of Year 13,534,000 13,402,000 10,244,000
Funded Status of Plan and Accrued Liability Recognized at End of Year:      
Other Liabilities 13,534,000 13,402,000 10,244,000
Accumulated Benefit Obligation at End of Year 12,803,000 12,339,000 8,778,000
Components of Net Periodic Benefit Costs:      
Service Cost 35,000 31,000 0
Interest Cost 243,000 321,000 349,000
Amortization of Prior Service Cost 277,000 327,000 0
Net Loss Amortization 970,000 503,000 761,000
Net Periodic Benefit Cost $ 1,525,000 $ 1,182,000 $ 1,110,000
Weighted-average used to determine the benefit obligations:      
Discount Rate (in percent) 2.80% 2.38% 3.16%
Rate of Compensation Increase (in percent) 4.40% 4.00% 4.00%
Measurement Date Dec. 31, 2021 Dec. 31, 2020 Dec. 31, 2019
Weighted-Average Assumptions Used to Determine Benefit Cost:      
Discount Rate (in percent) 2.38% 3.16% 4.23%
Rate of Compensation Increase (in percent) 4.00% 3.50% 3.50%
Amortization Amounts from Accumulated Other Comprehensive Income:      
Net Actuarial Loss (Gain) $ (146,000) $ 1,826,000 $ 1,035,000
Prior Service Cost (219,000) 895,000 0
Net Loss (970,000) (458,000) (761,000)
Deferred Tax (Benefit) Expense 154,000 (573,000) (70,000)
Other Comprehensive Loss (Gain), net of tax (1,181,000) 1,690,000 204,000
Amounts Recognized in Accumulated Other Comprehensive Income:      
Net Actuarial Loss (1,875,000) (2,991,000) 1,622,000
Prior Service Cost 429,000 895,000 0
Deferred Tax Benefit (584,000) (985,000) (411,000)
Accumulated Other Comprehensive Loss, net of tax $ 1,720,000 $ 2,901,000 $ 1,211,000