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Note 3 - Loans and Allowance for Loan Losses - Nonaccrual Loan by Loan Category (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Nonaccrual loans | $ 1,197 | $ 1,727
Agricultural [Member] |  |
Nonaccrual loans | 307 | 313
Commercial and Industrial [Member] |  |
Nonaccrual loans | 46 | 285
Consumer Portfolio Segment [Member] |  |
Nonaccrual loans | 7 | 0
Commercial Real Estate Portfolio Segment [Member] |  |
Nonaccrual loans | 0 | 279
Residential Portfolio Segment [Member] |  |
Nonaccrual loans | $ 837 | $ 850

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