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Basis of Presentation, Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
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Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | $ 21,695 | $ 22,797 | $ 21,153 | $ 21,455 | $ 21,652 | $ 18,552
Allowance for Credit Losses - Off-Balance Sheet credit Exposure | 766 | 1,066 | 1,265 | 1,265 | 1,391 | 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 | 1,986 | 2,355 | 2,354 | 2,565 | 2,675 | 1,056
Real Estate Loans [Member] | Commercial [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 9,287 | 10,283 | 9,178 | 9,185 | 9,274 | 10,120
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 3,815 | 3,770 | 3,264 | 3,475 | 3,579 | 4,589
Real Estate Loans [Member] | Construction [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 1,471 | 1,627 | 1,950 | 1,833 | 1,667 | 801
Consumer [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 1,367 | 1,211 | 1,496 | 1,720 | 1,259 | 135
Other Commercial Loans [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 1,824 | 3,256 | 2,229 | 2,072 | 2,477 | 1,040
Other Agricultural Loans [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 116 | 206 | 270 | 229 | 268 | 489
State and Political Subdivision Loans [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | 63 | 63 | 45 | 48 | 52 | 322
Unallocated [Member] |  |  |  |  |  |
Impact of Change from Incurred Loss Model to Current Expected Credit Loss Model [Abstract] |  |  |  |  |  |
Allowance for Credit Losses | $ 1,766 | $ 26 | $ 367 | $ 328 | $ 401 | 0
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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