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Loans, Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022
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Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual | $ 10,404 | $ 6,938 | $ 10,404
Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 6,591 | 8,363
Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 347 | 2,041
Real Estate Loans [Member] | Mortgages [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 562 | 448
Real Estate Loans [Member] | Mortgages [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 562 | 448
Real Estate Loans [Member] | Mortgages [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Real Estate Loans [Member] | Home Equity [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 29 | 66
Real Estate Loans [Member] | Home Equity [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 29 | 66
Real Estate Loans [Member] | Home Equity [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Real Estate Loans [Member] | Commercial [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 2,778 | 2,423
Real Estate Loans [Member] | Commercial [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 2,778 | 2,423
Real Estate Loans [Member] | Commercial [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Real Estate Loans [Member] | Agricultural [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 3,222 | 3,069
Real Estate Loans [Member] | Agricultural [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 3,222 | 3,069
Real Estate Loans [Member] | Agricultural [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Real Estate Loans [Member] | Construction [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 2,357
Real Estate Loans [Member] | Construction [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 2,357
Real Estate Loans [Member] | Construction [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Consumer [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Consumer [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Consumer [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Other Commercial Loans [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 62 | 1,708
Other Commercial Loans [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Other Commercial Loans [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 62 | 1,708
Other Agricultural Loans [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 285 | 333
Other Agricultural Loans [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
Other Agricultural Loans [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 285 | 333
State and Political Subdivision Loans [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
State and Political Subdivision Loans [Member] | Real Estate [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | 0 | 0
State and Political Subdivision Loans [Member] | Other [Member] |  |  |
Amortized Cost Basis of Collateral-Dependent Nonaccrual Loans [Abstract] |  |  |
Financing Receivable, Nonaccrual |  | $ 0 | $ 0

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