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Note 7 - Loans Receivable and Credit Disclosures - Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Impaired financing receivable, with no related allowance, average recorded investment | $ 3,167 | $ 2,126 | $ 2,508 | $ 2,568
Impaired financing receivable, with no related allowance, interest income, accrual method | 39 | 8 | 74 | 355
Impaired financing receivable, with related allowance, average recorded investment | 9,920 | 10,472 | 10,152 | 10,906
Impaired financing receivable, with related allowance, interest income, accrual method | 1 | 0 | 2 | 0
Impaired financing receivable, average recorded investment | 13,087 | 12,598 | 12,660 | 13,474
Impaired financing receivable, interest income, accrual method | 40 | 8 | 76 | 355
Construction Real Estate [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 0 | 0 | 0 | 84
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, with related allowance, average recorded investment | 0 | 0 | 0 | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, average recorded investment | 0 | 0 | 0 | 84
Impaired financing receivable, interest income, accrual method | 0 | 0 | 0 | 0
Family Residential Real Estate 1-4 [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 781 | 813 | 722 | 587
Impaired financing receivable, with no related allowance, interest income, accrual method | 39 | 8 | 55 | 19
Impaired financing receivable, with related allowance, average recorded investment | 98 | 164 | 206 | 336
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0 | 1 | 0
Impaired financing receivable, average recorded investment | 879 | 977 | 928 | 923
Impaired financing receivable, interest income, accrual method | 39 | 8 | 56 | 19
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 1,929 | 132 | 1,026 | 162
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0 | 0 | 297
Impaired financing receivable, with related allowance, average recorded investment | 9,500 | 9,922 | 9,584 | 9,969
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, average recorded investment | 11,429 | 10,054 | 10,610 | 10,131
Impaired financing receivable, interest income, accrual method | 0 | 0 | 0 | 297
Agriculture Real Estate [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 170 | 602 | 357 | 990
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0 | 14 | 25
Impaired financing receivable, with related allowance, average recorded investment | 0 | 0 | 0 | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, average recorded investment | 170 | 602 | 357 | 990
Impaired financing receivable, interest income, accrual method | 0 | 0 | 14 | 25
Commercial Portfolio Segment [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 242 | 255 | 234 | 400
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0 | 5 | 0
Impaired financing receivable, with related allowance, average recorded investment | 17 | 29 | 43 | 181
Impaired financing receivable, with related allowance, interest income, accrual method | 1 | 0 | 1 | 0
Impaired financing receivable, average recorded investment | 259 | 284 | 277 | 581
Impaired financing receivable, interest income, accrual method | 1 | 0 | 6 | 0
Agriculture [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 39 | 318 | 164 | 339
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0 | 0 | 14
Impaired financing receivable, with related allowance, average recorded investment | 286 | 327 | 299 | 385
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, average recorded investment | 325 | 645 | 463 | 724
Impaired financing receivable, interest income, accrual method | 0 | 0 | 0 | 14
Consumer and Other [Member] |  |  |  |
Impaired financing receivable, with no related allowance, average recorded investment | 6 | 6 | 5 | 6
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, with related allowance, average recorded investment | 19 | 30 | 20 | 35
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0 | 0 | 0
Impaired financing receivable, average recorded investment | 25 | 36 | 25 | 41
Impaired financing receivable, interest income, accrual method | $ 0 | $ 0 | $ 0 | $ 0

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