v3.26.1
Note 4 - Loans and the Allowance for Credit Losses - Collateral Dependent Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process $ 1,512,173 $ 1,512,056
Equipment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 199 111
Crops [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 4,471 4,873
Livestock [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 225 225
Farmland [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 2,583 2,749
Commercial 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 7,588 3,640
S F R 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 3,762 862
S F R 2nd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 510 510
Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 623  
Collateral Pledged [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 19,961 13,007
SFR 3rd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process   37
Commercial Portfolio Segment [Member] | Commercial Loans [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 162,128 167,851
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Equipment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 90 111
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Crops [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Livestock [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Farmland [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Commercial 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | S F R 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 151 161
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | S F R 2nd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 146 0
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 593  
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Collateral Pledged [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 980 272
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | SFR 3rd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process   0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 142,940 157,526
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Equipment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 109 0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Crops [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 4,471 4,873
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Livestock [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 225 225
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Farmland [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 2,583 2,749
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Commercial 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 2,241 2,241
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | S F R 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 2,268 311
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | S F R 2nd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0  
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Collateral Pledged [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 11,897 10,399
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | SFR 3rd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process   0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 1,026,049 1,002,627
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Equipment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Crops [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Livestock [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Farmland [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Commercial 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 5,347 1,399
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | S F R 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 935 245
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | S F R 2nd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 76 112
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 30  
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Collateral Pledged [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 6,388 1,793
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | SFR 3rd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process   37
Residential Portfolio Segment [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 32,223 33,116
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Equipment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Crops [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Livestock [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Farmland [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Commercial 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | S F R 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 145 145
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | S F R 2nd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0  
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Collateral Pledged [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 145 145
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | SFR 3rd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process   0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 54,993 53,647
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Equipment [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Crops [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Livestock [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Farmland [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Commercial 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0 0
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | S F R 1st Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 263
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | S F R 2nd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 288 398
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Land [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process 0  
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Collateral Pledged [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process $ 551 398
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | SFR 3rd Deed [Member]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process   $ 0