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Note 8 - Loans Receivable and Credit Disclosures - Loans Receivable Impairment Analysis (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Individually evaluated for impairment |  | $ 16,388 | $ 4,788
Collectively evaluated for impairment |  | 1,160,711 | 1,056,058
Balance |  | 1,177,099 | 1,060,846
Construction Real Estate [Member] |  |  |
Individually evaluated for impairment |  | 165 | 0
Collectively evaluated for impairment |  | 45,356 | 47,895
Balance |  | 45,521 | 47,895
Family Residential Real Estate 1-4 [Member] |  |  |
Individually evaluated for impairment |  | 1,332 | 1,204
Collectively evaluated for impairment |  | 209,907 | 200,306
Balance |  | 211,239 | 201,510
Commercial Real Estate Portfolio Segment [Member] |  |  |
Individually evaluated for impairment |  | 11,046 | 83
Collectively evaluated for impairment |  | 480,353 | 435,767
Balance |  | 491,399 | 435,850
Agriculture Real Estate [Member] |  |  |
Individually evaluated for impairment |  | 1,868 | 84
Collectively evaluated for impairment |  | 155,627 | 160,687
Balance |  | 157,495 | 160,771
Commercial Portfolio Segment [Member] |  |  |
Individually evaluated for impairment |  | 949 | 462
Collectively evaluated for impairment |  | 151,758 | 83,622
Balance | [1] | 152,707 | 84,084
Agriculture [Member] |  |  |
Individually evaluated for impairment |  | 977 | 2,951
Collectively evaluated for impairment |  | 101,222 | 108,994
Balance |  | 102,199 | 111,945
Consumer and Other [Member] |  |  |
Individually evaluated for impairment |  | 51 | 4
Collectively evaluated for impairment |  | 16,488 | 18,787
Balance |  | $ 16,539 | $ 18,791
[1] | Commercial loan portfolio as of September 30, 2020 includes $79.6 million Payroll Protection Program ("PPP") loans

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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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