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Summary of Significant Accounting Policies (Changes from Incurred Loss Model to Expected Credit Loss Model) (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans | $ 18,968,000 | $ 16,999,000 |
ACL |  | 19,794,000 |
Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 16,999,000 | $ 16,442,000
ACL |  | 16,999,000 |
Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 2,466,000 |
ACL |  | 2,795,000 |
Unfunded Loan Commitment [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL for unfunded commitments |  | 329,000 |
Unfunded Loan Commitment [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL for unfunded commitments |  | 329,000 |
Residential Real Estate Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans | 1,351,000 | 1,288,000 |
Residential Real Estate Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 2,833,000 | 2,175,000
Residential Real Estate Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | (1,545,000) |
Commercial Real Estate Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans | 11,871,000 | 13,820,000 |
Commercial Real Estate Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 8,293,000 | 10,878,000
Commercial Real Estate Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 5,527,000 |
Agricultural Real Estate Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 59,000 |
Agricultural Real Estate Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 259,000 |
Agricultural Real Estate Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | (200,000) |
Construction Real Estate Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans | 933,000 | 797,000 |
Construction Real Estate Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 409,000 | 133,000
Construction Real Estate Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 388,000 |
Commercial Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans | 1,207,000 | 1,289,000 |
Commercial Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 2,445,000 | 1,490,000
Commercial Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | (1,156,000) |
Other Agricultural Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 127,000 |
Other Agricultural Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 124,000 |
Other Agricultural Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 3,000 |
Consumer Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans | $ 3,454,000 | 2,085,000 |
Consumer Loans [Member] | Pre Adoption [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | 2,636,000 | $ 1,766,000
Consumer Loans [Member] | Adoption Impact [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
ACL on loans |  | $ (551,000) |

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