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Loans, Internal Credit Risk Ratings for Loan Class Segments (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable by credit exposure [Abstract] |  |
Total loans | $ 1,708,225 | $ 1,706,447
Real Estate Loans [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 296,863
Real Estate Loans [Member] | Commercial [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 876,569
Real Estate Loans [Member] | Commercial [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 842,912
Real Estate Loans [Member] | Commercial [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 28,047
Real Estate Loans [Member] | Commercial [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 5,610
Real Estate Loans [Member] | Commercial [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Real Estate Loans [Member] | Commercial [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Real Estate Loans [Member] | Agricultural [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 313,614
Real Estate Loans [Member] | Agricultural [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 295,443
Real Estate Loans [Member] | Agricultural [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 11,960
Real Estate Loans [Member] | Agricultural [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 6,211
Real Estate Loans [Member] | Agricultural [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Real Estate Loans [Member] | Agricultural [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Real Estate Loans [Member] | Construction [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 80,691
Real Estate Loans [Member] | Construction [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 75,703
Real Estate Loans [Member] | Construction [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 2,642
Real Estate Loans [Member] | Construction [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 2,346
Real Estate Loans [Member] | Construction [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Real Estate Loans [Member] | Construction [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Other Commercial Loans [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 63,222
Other Commercial Loans [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 59,902
Other Commercial Loans [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 2,953
Other Commercial Loans [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 337
Other Commercial Loans [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 30
Other Commercial Loans [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Other Agricultural Loans [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 34,832
Other Agricultural Loans [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 32,708
Other Agricultural Loans [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 1,307
Other Agricultural Loans [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 817
Other Agricultural Loans [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Other Agricultural Loans [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Subdivision Loans [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 59,208
Subdivision Loans [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 59,208
Subdivision Loans [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Subdivision Loans [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Subdivision Loans [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Subdivision Loans [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 0
Total Loans [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 1,428,136
Total Loans [Member] | Pass [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 1,365,876
Total Loans [Member] | Special Mention [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 46,909
Total Loans [Member] | Substandard [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 15,321
Total Loans [Member] | Doubtful [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | 30
Total Loans [Member] | Loss [Member] |  |
Financing Receivable by credit exposure [Abstract] |  |
Total loans |  | $ 0

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