Note 5 - Loans (Details Textual) |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Jun. 30, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
Jun. 30, 2025
USD ($)
|
Dec. 31, 2024
USD ($)
|
|
| Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 189,010,000 | $ 170,235,000 | $ 189,010,000 | $ 170,235,000 | $ 181,853,000 | $ 171,683,000 | $ 169,959,000 | $ 164,458,000 |
| Financing Receivable, Modified, Number of Loans on Nonaccrual or Past Due More Than 30 Days | 2 | 2 | ||||||
| Financing Receivable, Modified, Subsequent Default, Number of Contracts | 0 | |||||||
| Unfunded Loan Commitment [Member] | ||||||||
| Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 710,000 | $ 710,000 | $ 572,000 | |||||
| Financing Receivable, Credit Loss, Expense (Reversal) | $ 346,000 | $ 125,000 | $ 138,000 | $ 173,000 | ||||
| X | ||||||||||
- Definition Number of financing receivable contracts modified within previous 12 months that are on nonaccrual or past due more than 30 days. No definition available.
|
| X | ||||||||||
- Definition Number of financing receivable contracts modified within previous 12 months, with subsequent payment default. No definition available.
|
| X | ||||||||||
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of credit loss expense (reversal of expense) for financing receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|