Note 4 - Loans and the Allowance for Credit Losses - Financial Effect of Loan Modifications (Details) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Weighted average term extension (Year) | 5 years 1 month 6 days | |
| Weighted average term extension (Month) | 5 years 1 month 6 days | |
| Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | ||
| Weighted average term extension (Year) | 5 years 3 months 18 days | |
| Weighted average term extension (Month) | 5 years 3 months 18 days | |
| Commercial Portfolio Segment [Member] | Commercial Loans [Member] | ||
| Weighted average term extension (Year) | 6 months | |
| Weighted average term extension (Month) | 6 months | |
| Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | ||
| Weighted average term extension (Year) | 3 years | |
| Weighted average term extension (Month) | 3 years | |