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EMPLOYEE BENEFIT PLANS - Information about the plan (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Pension Plans    
Change in projected benefit obligation:    
Projected benefit obligation at beginning of year $ 9,650 $ 8,926
Interest cost 233 282
Actuarial loss (406) 913
Benefits paid (326) (319)
Settlements (550) (152)
Projected benefit obligation at end of year 8,601 9,650
Change in fair value of plan assets:    
Fair value of plan assets at beginning of year 12,040 11,078
Expected return on plan assets 1,258 1,433
Benefits paid (326) (319)
Settlements (550) (152)
Fair value of plan assets at end of year 12,422 12,040
Under/(over) funded status (3,821) (2,390)
Amounts recognized in consolidated balance sheet assets (liabilities) 3,821 2,390
Non-qualified Supplemental Executive Retirement Plan    
Change in projected benefit obligation:    
Projected benefit obligation at beginning of year 2,969 2,979
Interest cost 44 81
Actuarial loss (147) 202
Benefits paid (260) (293)
Projected benefit obligation at end of year 2,606 2,969
Change in fair value of plan assets:    
Contributions by employer 260 293
Benefits paid (260) (293)
Under/(over) funded status 2,606 2,969
Amounts recognized in consolidated balance sheet assets (liabilities) $ 2,606 $ 2,969