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Allowance for Credit Losses on Loans - Amortized cost basis of collateral-dependent loans by loan portfolio segment (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Financing Receivable, Allowance for Credit Loss, Individually Evaluated | $ 2,048 | $ 5,574
Construction & Secured by Farmland |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 95
Residential First Lein - Investor |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 1,086
Residential First Lein - Owner Occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans | 318 | 194
Residential Junior Liens |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 8
Commercial - Owner Occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans | 739 | 14
Commercial - Non-Owner Occupied & Multifamily |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 3,625
Other commercial and industrial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans | 908 |
Marine loans |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans |  | 552
Consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans | 83 |
Real Estate Collateral |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans | 1,140 | 5,022
Real Estate Collateral | Construction & Secured by Farmland |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 95
Real Estate Collateral | Residential First Lein - Investor |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 1,086
Real Estate Collateral | Residential First Lein - Owner Occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans | 318 | 194
Real Estate Collateral | Residential Junior Liens |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 8
Real Estate Collateral | Commercial - Owner Occupied |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans | 739 | 14
Real Estate Collateral | Commercial - Non-Owner Occupied & Multifamily |  |
Financing Receivable, Past Due [Line Items] |  |
Mortgage real estate loans |  | 3,625
Real Estate Collateral | Consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans | 83 |
Other Collateral |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans | 908 | 552
Other Collateral | Other commercial and industrial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans | $ 908 |
Other Collateral | Marine loans |  |
Financing Receivable, Past Due [Line Items] |  |
Commercial and industrial loans |  | $ 552

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- Definition Amount of allowance for credit loss on financing receivable evaluated on individual basis. Excludes financing receivable evaluated on collective basis. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.5.a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480418/310-10-S99-4 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 30 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479391/326-20-30-2 + Details
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