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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
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Impaired financing receivable, with no related allowance, average recorded investment | $ 3,010 | $ 9,533
Impaired financing receivable, with no related allowance, interest income, accrual method | 335 | 6
Impaired financing receivable, with related allowance, average recorded investment | 11,341 | 1,719
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 14,351 | 11,252
Impaired financing receivable, interest income, accrual method | 335 | 6
Construction Real Estate [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 167 | 0
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, with related allowance, average recorded investment | 0 | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 167 | 0
Impaired financing receivable, interest income, accrual method | 0 | 0
Family Residential Real Estate 1-4 [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 361 | 283
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, with related allowance, average recorded investment | 509 | 919
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 870 | 1,202
Impaired financing receivable, interest income, accrual method | 0 | 0
Commercial Real Estate Portfolio Segment [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 192 | 5,351
Impaired financing receivable, with no related allowance, interest income, accrual method | 297 | 0
Impaired financing receivable, with related allowance, average recorded investment | 10,016 | 488
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 10,208 | 5,839
Impaired financing receivable, interest income, accrual method | 297 | 0
Agriculture Real Estate [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 1,378 | 439
Impaired financing receivable, with no related allowance, interest income, accrual method | 25 | 6
Impaired financing receivable, with related allowance, average recorded investment | 0 | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 1,378 | 439
Impaired financing receivable, interest income, accrual method | 25 | 6
Commercial Portfolio Segment [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 546 | 437
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, with related allowance, average recorded investment | 333 | 84
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 879 | 521
Impaired financing receivable, interest income, accrual method | 0 | 0
Agriculture [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 360 | 2,979
Impaired financing receivable, with no related allowance, interest income, accrual method | 13 | 0
Impaired financing receivable, with related allowance, average recorded investment | 443 | 228
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 803 | 3,207
Impaired financing receivable, interest income, accrual method | 13 | 0
Consumer and Other [Member] |  |
Impaired financing receivable, with no related allowance, average recorded investment | 6 | 44
Impaired financing receivable, with no related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, with related allowance, average recorded investment | 40 | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0 | 0
Impaired financing receivable, average recorded investment | 46 | 44
Impaired financing receivable, interest income, accrual method | $ 0 | $ 0

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details
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