Loans and Allowance for Credit Losses on Loans - Schedule of Amortized Cost Basis of Collateral-Dependent Loans by Loan Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Ending balance individually evaluated for impairment	$ 2,267	$ 5,574
Construction & Secured by Farmland
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans		95
Residential First Lien - Investor
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans	472	1,086
Residential First Lien - Owner Occupied
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans	73	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	749	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	891
Marine loans
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	0	552
Consumer loans
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	82
Real Estate Collateral [Member]
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	1,294	5,022
Real Estate Collateral [Member] | Construction & Secured by Farmland
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans		95
Real Estate Collateral [Member] | Residential First Lien - Investor
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans	472	1,086
Real Estate Collateral [Member] | Residential First Lien - Owner Occupied
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans	73	194
Real Estate Collateral [Member] | Residential Junior Liens
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans		8
Real Estate Collateral [Member] | Commercial - Owner Occupied
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans	749	14
Real Estate Collateral [Member] | Commercial - Non-Owner Occupied & Multifamily
Financing Receivable, Past Due [Line Items]
Mortgage real estate loans		3,625
Other Collateral [Member]
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	973	552
Other Collateral [Member] | Other Commercial And Industrial Loans
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	891
Other Collateral [Member] | Marine loans
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	0	$ 552
Other Collateral [Member] | Consumer loans
Financing Receivable, Past Due [Line Items]
Commercial and industrial loans	$ 82