Note 4 - Loans, Allowance for Credit Losses and Credit Quality - Summary of Allowance for Credit Losses (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Provision for losses on loans | $ 157 | $ 6 |
| Benefit for losses on off-balance sheet credit exposures | (4) | (16) |
| Total provision (benefit) for credit losses | $ 153 | $ (10) |
| X | ||||||||||
- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|