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Note 4 - Loans and the Allowance for Credit Losses - Aging Analysis of the Loan Portfolio (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Loans, Total | $ 1,021,082 | $ 1,018,571
90 Days and Still Accruing | 0 | 0
Nonaccrual | 13,652 | 4,105
Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 5,546 | 8,521
Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 4,557 | 1,372
Financial Asset, Past Due [Member] |  |
Loans, Total | 23,755 | 13,998
Financial Asset, Not Past Due [Member] |  |
Loans, Total | 997,327 | 1,004,573
Commercial Portfolio Segment [Member] | Commercial Loans [Member] |  |
Loans, Total | 81,899 | 78,194
90 Days and Still Accruing | 0 | 0
Nonaccrual | 353 | 355
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 903 | 1,074
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 444 | 533
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 1,700 | 1,962
Commercial Portfolio Segment [Member] | Commercial Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 80,199 | 76,232
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] |  |
Loans, Total | 114,108 | 119,110
90 Days and Still Accruing | 0 | 0
Nonaccrual | 9,905 | 567
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 170 | 273
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 2,581 | 0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 12,656 | 840
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 101,452 | 118,270
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Loans, Total | 673,808 | 646,951
90 Days and Still Accruing | 0 | 0
Nonaccrual | 1,281 | 1,579
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 2,042 | 1,954
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 965 | 82
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 4,288 | 3,615
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 669,520 | 643,336
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |
Loans, Total | 40,699 | 53,285
90 Days and Still Accruing | 0 | 0
Nonaccrual | 0 | 0
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 534 | 2,133
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total |  | 0
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 534 | 2,133
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 40,165 | 51,152
Residential Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Loans, Total | 11,080 | 11,568
90 Days and Still Accruing | 0 | 0
Nonaccrual | 227 | 83
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 0 | 348
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 34 | 319
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 261 | 750
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 10,819 | 10,818
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] |  |
Loans, Total | 42,526 | 38,755
90 Days and Still Accruing | 0 | 0
Nonaccrual | 1,089 | 650
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 592 | 1,416
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 235 | 189
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 1,916 | 2,255
Residential Portfolio Segment [Member] | Equity Lines of Credit [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 40,610 | 36,500
Consumer Portfolio Segment [Member] |  |
Loans, Total | 56,962 | 70,708
Consumer Portfolio Segment [Member] | Automobile Loan [Member] |  |
Loans, Total | 52,102 | 65,584
90 Days and Still Accruing | 0 | 0
Nonaccrual | 790 | 792
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 1,237 | 1,251
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 292 | 242
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 2,319 | 2,285
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | 49,783 | 63,299
Consumer Portfolio Segment [Member] | Other Loans [Member] |  |
Loans, Total | 4,860 | 5,124
90 Days and Still Accruing | 0 | 0
Nonaccrual | 7 | 79
Consumer Portfolio Segment [Member] | Other Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Loans, Total | 68 | 72
Consumer Portfolio Segment [Member] | Other Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Loans, Total | 6 | 7
Consumer Portfolio Segment [Member] | Other Loans [Member] | Financial Asset, Past Due [Member] |  |
Loans, Total | 81 | 158
Consumer Portfolio Segment [Member] | Other Loans [Member] | Financial Asset, Not Past Due [Member] |  |
Loans, Total | $ 4,779 | $ 4,966

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