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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | $ 21,699 | $ 21,153 | $ 18,552 | $ 17,304
Allowance for Credit Losses - Off-Balance Sheet credit Exposure | 676 | 1,265 | 165 | 165
Real Estate Loans [Member] | Residential [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 1,940 | 2,354 | 1,056 | 1,147
Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 9,174 | 9,178 | 10,120 | 8,099
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 3,529 | 3,264 | 4,589 | 4,729
Real Estate Loans [Member] | Construction [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 1,402 | 1,950 | 801 | 434
Consumer [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 1,405 | 1,496 | 135 | 262
Other Commercial Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 3,699 | 2,229 | 1,040 | 1,023
Other Agricultural Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 133 | 270 | 489 | 558
State and Political Subdivision Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | 61 | 45 | 322 | 281
Unallocated [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses | $ 356 | $ 367 | 0 | $ 771
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (3,300) |
Allowance for Credit Losses - Off-Balance Sheet credit Exposure |  |  | 1,064 |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Real Estate Loans [Member] | Residential [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 79 |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (3,070) |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (1,145) |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Real Estate Loans [Member] | Construction [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (103) |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Consumer [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 1,040 |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Other Commercial Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (328) |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Other Agricultural Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (219) |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | State and Political Subdivision Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | (280) |
Cumulative Effect, Period of Adoption, Adjustment [Member] | ASU 2016-13 [Member] | Unallocated [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 726 |
As Reported [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 15,252 |
Allowance for Credit Losses - Off-Balance Sheet credit Exposure |  |  | 1,229 |
As Reported [Member] | Real Estate Loans [Member] | Residential [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 1,135 |
As Reported [Member] | Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 7,050 |
As Reported [Member] | Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 3,444 |
As Reported [Member] | Real Estate Loans [Member] | Construction [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 698 |
As Reported [Member] | Consumer [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 1,175 |
As Reported [Member] | Other Commercial Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 712 |
As Reported [Member] | Other Agricultural Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 270 |
As Reported [Member] | State and Political Subdivision Loans [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | 42 |
As Reported [Member] | Unallocated [Member] |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |
Allowance for Credit Losses |  |  | $ 726 |

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