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LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES, Primary Segments Portfolio and Accretable Yield for PCI Loans (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | $ 2,313,242 | $ 2,248,836 |  |
Allowance for Credit Losses | 21,699 | 21,153 | $ 18,552 | $ 17,304
Net loans | 2,291,543 | 2,227,683 |  |
Net unamortized loan fees and costs | 2,587 | 2,843 |  |
Real estate loans serviced for Freddie Mac and Fannie Mae | 193,507 | 203,709 |  |
Real estate loans sold to Freddie Mac and Fannie Mae without recourse | 184,578 | 193,548 |  |
Portfolio balance under MPF | 8,929 | 10,161 |  |
First-loss position for MPF maintained by FHLB | 168 |  |  |
Credit enhancement for MPF by FHLB | $ 229 |  |  |
First Mortgage [Member] | Minimum [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Period of mortgage on real estate | 15 years |  |  |
First Mortgage [Member] | Maximum [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Period of mortgage on real estate | 30 years |  |  |
Second Mortgage [Member] | Maximum [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Period of mortgage on real estate | 15 years |  |  |
Residential [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | $ 301,735 | 310,199 |  |
Commercial [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 1,121,435 | 1,092,887 |  |
Construction [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 164,326 | 195,826 |  |
Real Estate Loans [Member] | Residential [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 351,398 | 359,990 |  |
Allowance for Credit Losses | 1,940 | 2,354 | 1,056 | 1,147
Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 1,121,435 | 1,092,887 |  |
Allowance for Credit Losses | 9,174 | 9,178 | 10,120 | 8,099
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 327,722 | 314,802 |  |
Allowance for Credit Losses | 3,529 | 3,264 | 4,589 | 4,729
Real Estate Loans [Member] | Construction [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 164,326 | 195,826 |  |
Allowance for Credit Losses | 1,402 | 1,950 | 801 | 434
Consumer [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 133,207 | 61,316 |  |
Allowance for Credit Losses | 1,405 | 1,496 | 135 | 262
Other Commercial Loans [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 131,310 | 136,168 |  |
Allowance for Credit Losses | 3,699 | 2,229 | 1,040 | 1,023
Other Agricultural Loans [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 29,662 | 30,673 |  |
Allowance for Credit Losses | 133 | 270 | 489 | 558
State and Political Subdivision Loans [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loans | 54,182 | 57,174 |  |
Allowance for Credit Losses | $ 61 | $ 45 | $ 322 | $ 281

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