Loans and Allowance for Credit Losses for Loans - Past Due, Non-Accrual and Current Loans by Loan Portfolio Class (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 305,178
Current Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	302,845
30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	180
90 Days or More Past Due Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,153
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	91,411
Commercial and industrial | Current Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	91,411
Commercial and industrial | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
Commercial and industrial | 90 Days or More Past Due Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
Commercial Real Estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	212,898
Commercial Real Estate | Current Loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	210,565
Commercial Real Estate | 30-89 Days Past Due | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	180
Commercial Real Estate | 90 Days or More Past Due Loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,153
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	869
Residential mortgage | Current Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	869
Residential mortgage | 30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0
Residential mortgage | 90 Days or More Past Due Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 0