Note 4 - Loans and Allowance for Credit Losses - Loan Modifications (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Total Financing Receivables, Percentage | 0.00% | 0.71% |
| Extended Maturity [Member] | ||
| Financing Receivable, Modified | $ 0 | $ 4,399 |
| Commercial Real Estate Portfolio Segment [Member] | ||
| Total Financing Receivables, Percentage | 0.00% | 1.06% |
| Commercial Real Estate Portfolio Segment [Member] | Extended Maturity [Member] | ||
| Financing Receivable, Modified | $ 0 | $ 4,399 |