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RETIREMENT PLANS, NARRATIVE (Details) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Jul. 01, 2020 | Jul. 01, 2019 | Feb. 01, 2009 age_and_service
Defined Contribution Plan [Abstract] |  |  |  |  |  |
Age plus vesting service (less than, in years) | age_and_service |  |  |  |  |  | 65
Employer's matching contribution to 401(k) of employees hired on or after January 1, 2009 | 50.00% |  |  |  |  |
Maximum annual contribution per employee, percent | 3.00% |  |  |  |  |
Minimum annual contribution for employees who received a benefit reduction under plan amendments | 5.00% |  |  |  |  |
Maximum annual contribution for employees who received a benefit reduction under plan amendments | 7.00% |  |  |  |  |
Defined benefit plan, minimum funded percentage |  |  |  | 80.00% | 80.00% |
Deferred Compensation Arrangements |  |  |  |  |  |
Deferred Compensation Arrangements [Abstract] |  |  |  |  |  |
Accrued interest on deferred compensation | 8.00% |  |  |  |  |
Deferred compensation liability | $ 2,867 | $ 3,002 |  |  |  |
Qualified noncontributory defined benefit retirement plan |  |  |  |  |  |
Defined Contribution Plan [Abstract] |  |  |  |  |  |
Expected contribution by employer to noncontributory defined benefit plan | 184 |  |  |  |  |
Supplemental Employee Retirement Plan |  |  |  |  |  |
Supplemental income plan [Abstract] |  |  |  |  |  |
Projected benefit obligation | $ 689 | $ 798 |  |  |  |
Discount rate | 5.10% | 5.00% |  |  |  |
Service cost | $ 0 | $ 0 | $ 0 |  |  |
Interest cost | $ 36 | $ 42 | $ 48 |  |  |
Qualified noncontributory defined benefit retirement plan |  |  |  |  |  |
Supplemental income plan [Abstract] |  |  |  |  |  |
Discount rate | 5.02% | 2.83% | 2.52% |  |  |
Service cost | $ 0 | $ 0 | $ 0 |  |  |
Interest cost | 54 | 52 | $ 63 |  |  |
Accumulated benefit obligation under nonqualified defined benefit retirement plan | 1,606 | 1,999 |  |  |  |
Future amortization of prior service cost | 0 |  |  |  |  |
Citizens National Bank |  |  |  |  |  |
Defined Contribution Plan [Abstract] |  |  |  |  |  |
Qualified noncontributory defined benefit pension plan liability | $ 128 | $ 128 |  |  |  |

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