Loans, Allowance for Credit Losses - Loans, and Credit Quality - Schedule of Collateral Dependent Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 23,892	$ 22,980
Without an Allowance	21,586	18,859
With an Allowance	2,306	4,121
Allowance Allocation	602	773
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	14,467	11,438
Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	9,425	11,542
Retail & other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	9	14
Without an Allowance	9	0
With an Allowance	0	14
Allowance Allocation	0	1
Retail & other \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Retail & other \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	9	14
Commercial \| Commercial & industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,632	7,788
Without an Allowance	4,122	4,047
With an Allowance	1,510	3,741
Allowance Allocation	585	723
Commercial \| Commercial & industrial \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial \| Commercial & industrial \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,632	7,788
Commercial \| Owner-occupied CRE
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,781	3,744
Without an Allowance	5,090	3,378
With an Allowance	691	366
Allowance Allocation	0	49
Commercial \| Owner-occupied CRE \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,781	3,744
Commercial \| Owner-occupied CRE \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial \| Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	11,372	9,704
Without an Allowance	11,372	9,704
With an Allowance	0	0
Allowance Allocation	0	0
Commercial \| Agricultural \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	7,588	5,964
Commercial \| Agricultural \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	3,784	3,740
Commercial real estate \| CRE investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	525	1,488
Without an Allowance	525	1,488
With an Allowance	0	0
Allowance Allocation	0	0
Commercial real estate \| CRE investment \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	525	1,488
Commercial real estate \| CRE investment \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial real estate \| Construction & land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Without an Allowance	0	0
With an Allowance	0	0
Allowance Allocation	0	0
Commercial real estate \| Construction & land development \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial real estate \| Construction & land development \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential \| Residential first mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	468	242
Without an Allowance	468	242
With an Allowance	0	0
Allowance Allocation	0	0
Residential \| Residential junior mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	105	0
Without an Allowance	0	0
With an Allowance	105	0
Allowance Allocation	17	0
Residential \| Real Estate \| Residential first mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	468	242
Residential \| Real Estate \| Residential junior mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	105	0
Residential \| Other Business Assets \| Residential first mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential \| Other Business Assets \| Residential junior mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential \| Residential construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Without an Allowance	0	0
With an Allowance	0	0
Allowance Allocation	0	0
Residential \| Residential construction \| Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential \| Residential construction \| Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0	$ 0

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Regulation S-K (SK)
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-Publisher SEC

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