Loans - Balance of loans on nonaccrual status (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Interest income on loans on nonaccrual status | $ 12,000 | $ 25,000 | |
| Reversal of interest income upon placing commercial loans on nonaccrual status | 9,000 | 9,000 | |
| Loans on nonaccrual status | 1,818,000 | 1,818,000 | $ 2,157,000 |
| Residential mortgage | |||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Loans on nonaccrual status | 1,111,000 | 1,111,000 | 1,135,000 |
| Other consumer | |||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Loans on nonaccrual status | 62,000 | 62,000 | |
| Consumer finance | Automobiles | |||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Loans on nonaccrual status | $ 645,000 | $ 645,000 | $ 1,022,000 |