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Note 6 - Allowance for Loan Losses - Allowance for Loan Losses and Recorded Investment in Loans, Evaluated for Impairment Excluding PCI Loans, by Loan Class (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loans individually evaluated for impairment | $ 8,049 | $ 6,535
Allowance for loans individually evaluated | 427 | 645
Loans collectively evaluated for impairment | 2,138,921 | 1,672,634
Allowance for loans collectively evaluated | 25,754 | 17,780
Commercial Portfolio Segment [Member] |  |
Loans individually evaluated for impairment | 6,376 | 3,519
Allowance for loans individually evaluated | 319 | 292
Loans collectively evaluated for impairment | 1,252,765 | 969,838
Allowance for loans collectively evaluated | 14,341 | 9,943
Commercial Portfolio Segment [Member] | Construction, Development and Other Land [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 43,716 | 30,334
Allowance for loans collectively evaluated | 528 | 245
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Loans individually evaluated for impairment | 724 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 171,486 | 95,659
Allowance for loans collectively evaluated | 1,024 | 699
Commercial Portfolio Segment [Member] | Multi-family Residential [Member] |  |
Loans individually evaluated for impairment | 695 | 944
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 112,852 | 98,201
Allowance for loans collectively evaluated | 1,417 | 969
Commercial Portfolio Segment [Member] | Single Family Non-owner Occupied [Member] |  |
Loans individually evaluated for impairment | 1,041 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 183,283 | 128,520
Allowance for loans collectively evaluated | 1,861 | 1,323
Commercial Portfolio Segment [Member] | Non-farm, Non-residential [Member] |  |
Loans individually evaluated for impairment | 3,916 | 2,575
Allowance for loans individually evaluated | 319 | 292
Loans collectively evaluated for impairment | 714,160 | 591,520
Allowance for loans collectively evaluated | 9,097 | 6,361
Commercial Portfolio Segment [Member] | Agricultural [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 9,728 | 9,458
Allowance for loans collectively evaluated | 218 | 145
Commercial Portfolio Segment [Member] | Farmland [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 17,540 | 16,146
Allowance for loans collectively evaluated | 196 | 201
Consumer Real Estate Portfolio Segment [Member] |  |
Loans individually evaluated for impairment | 1,673 | 3,016
Allowance for loans individually evaluated | 108 | 353
Loans collectively evaluated for impairment | 760,372 | 598,855
Allowance for loans collectively evaluated | 8,843 | 5,972
Consumer Real Estate Portfolio Segment [Member] | Home Equity Lines [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 95,765 | 91,999
Allowance for loans collectively evaluated | 799 | 673
Consumer Real Estate Portfolio Segment [Member] | Single Family Owner Occupied [Member] |  |
Loans individually evaluated for impairment | 1,673 | 3,016
Allowance for loans individually evaluated | 108 | 353
Loans collectively evaluated for impairment | 647,040 | 490,712
Allowance for loans collectively evaluated | 7,849 | 5,175
Consumer Real Estate Portfolio Segment [Member] | Owner Occupied Construction [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 17,567 | 16,144
Allowance for loans collectively evaluated | 195 | 124
Consumer and Other Portfolio Segment [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 125,784 | 103,941
Allowance for loans collectively evaluated | 2,570 | 1,865
Consumer and Other Portfolio Segment [Member] | Consumer Loans [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 119,770 | 99,199
Allowance for loans collectively evaluated | 2,570 | 1,865
Consumer and Other Portfolio Segment [Member] | Other Loan [Member] |  |
Loans individually evaluated for impairment | 0 | 0
Allowance for loans individually evaluated | 0 | 0
Loans collectively evaluated for impairment | 6,014 | 4,742
Allowance for loans collectively evaluated | $ 0 | $ 0

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible 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 (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible 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 (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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