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Note 4 - Loans (Details Textual) - Loan Held for Sale [Member] - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Commercial Real Estate Portfolio Segment [Member] | Farmland [Member]    
Financing Receivable, Nonaccrual $ 1,680  
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]    
Financing Receivable, Nonaccrual   $ 1,520
Commercial Portfolio Segment [Member] | Agricultural [Member]    
Financing Receivable, Nonaccrual $ 163  
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]    
Financing Receivable, Nonaccrual   $ 77