v3.26.3
Note 4 - Loans and the Allowance for Credit Losses - Balance of Nonaccrual Loans By Loan Category (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Total nonaccrual $ 21,062 $ 15,089
Past due 90 days or more and still accruing 67 0
Commercial Portfolio Segment [Member] | Commercial Loans [Member]    
Total nonaccrual 1,026 611
Past due 90 days or more and still accruing 22 0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]    
Total nonaccrual 11,970 10,509
Past due 90 days or more and still accruing 45 0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]    
Total nonaccrual 6,015 2,000
Past due 90 days or more and still accruing 0 0
Commercial Portfolio Segment [Member] | Construction Loans [Member]    
Total nonaccrual 186 0
Past due 90 days or more and still accruing 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member]    
Total nonaccrual 208 215
Past due 90 days or more and still accruing 0 0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]    
Total nonaccrual 961 988
Past due 90 days or more and still accruing 0 0
Consumer Portfolio Segment [Member] | Automobile Loan [Member]    
Total nonaccrual 654 745
Past due 90 days or more and still accruing 0 0
Consumer Portfolio Segment [Member] | Other Loans [Member]    
Total nonaccrual 42 21
Past due 90 days or more and still accruing 0 0
Nonperforming Financial Instruments [Member]    
Nonaccrual with no allowance for credit losses 14,644 11,584
Total nonaccrual 21,062 15,089
Past due 90 days or more and still accruing 66 0
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Commercial Loans [Member]    
Nonaccrual with no allowance for credit losses 835 458
Total nonaccrual 1,026 611
Past due 90 days or more and still accruing 22 0
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]    
Nonaccrual with no allowance for credit losses 7,811 7,157
Total nonaccrual 11,970 10,509
Past due 90 days or more and still accruing 44 0
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]    
Nonaccrual with no allowance for credit losses 3,947 2,000
Total nonaccrual 6,015 2,000
Past due 90 days or more and still accruing 0 0
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]    
Nonaccrual with no allowance for credit losses 186 0
Total nonaccrual 186 0
Past due 90 days or more and still accruing 0 0
Nonperforming Financial Instruments [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member]    
Nonaccrual with no allowance for credit losses 208 215
Total nonaccrual 208 215
Past due 90 days or more and still accruing 0 0
Nonperforming Financial Instruments [Member] | Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]    
Nonaccrual with no allowance for credit losses 961 988
Total nonaccrual 961 988
Past due 90 days or more and still accruing 0 0
Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Automobile Loan [Member]    
Nonaccrual with no allowance for credit losses 654 745
Total nonaccrual 654 745
Past due 90 days or more and still accruing 0 0
Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Other Loans [Member]    
Nonaccrual with no allowance for credit losses 42 21
Total nonaccrual 42 21
Past due 90 days or more and still accruing $ 0 $ 0