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Note 7 - Loans Receivable and Credit Disclosures - Loans Receivable Impairment Analysis (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Individually evaluated for impairment |  | $ 12,696 | $ 15,273
Collectively evaluated for impairment |  | 1,130,740 | 1,132,304
Balance |  | 1,143,436 | 1,147,577
Construction Real Estate [Member] |  |  |
Individually evaluated for impairment |  | 0 | 167
Collectively evaluated for impairment |  | 46,164 | 45,330
Balance |  | 46,164 | 45,497
Family Residential Real Estate 1-4 [Member] |  |  |
Individually evaluated for impairment |  | 953 | 1,340
Collectively evaluated for impairment |  | 225,730 | 212,222
Balance |  | 226,683 | 213,562
Commercial Real Estate Portfolio Segment [Member] |  |  |
Individually evaluated for impairment |  | 10,153 | 10,258
Collectively evaluated for impairment |  | 488,408 | 486,099
Balance |  | 498,561 | 496,357
Agriculture Real Estate [Member] |  |  |
Individually evaluated for impairment |  | 628 | 1,664
Collectively evaluated for impairment |  | 151,529 | 150,328
Balance |  | 152,157 | 151,992
Commercial Portfolio Segment [Member] |  |  |
Individually evaluated for impairment |  | 271 | 940
Collectively evaluated for impairment |  | 105,745 | 121,595
Balance | [1] | 106,016 | 122,535
Agriculture [Member] |  |  |
Individually evaluated for impairment |  | 650 | 859
Collectively evaluated for impairment |  | 97,583 | 101,727
Balance |  | 98,233 | 102,586
Consumer and Other [Member] |  |  |
Individually evaluated for impairment |  | 41 | 45
Collectively evaluated for impairment |  | 15,581 | 15,003
Balance |  | $ 15,622 | $ 15,048
[1] | Commercial loan portfolio includes $37.6 million and $50.9 million of Paycheck Protection Program ("PPP") loans as of June 30, 2021 and December 31, 2020, respectively.

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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=123577603&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=123577603&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=124259787&loc=d3e4428-111522 + Details
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