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Note 4 - Loans Receivable and Credit Disclosures - Allowance for Loan Losses Impairment Analysis (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Ending balance: Individually evaluated for impairment | $ 1,392 | $ 1,819
Ending balance: Collectively evaluated for impairment | 15,229 | 15,396
Ending balance | 16,621 | 17,215
Construction Real Estate [Member] |  |
Ending balance: Individually evaluated for impairment | 0 | 0
Ending balance: Collectively evaluated for impairment | 675 | 725
Ending balance | 675 | 725
Family Residential Real Estate 1-4 [Member] |  |
Ending balance: Individually evaluated for impairment | 40 | 150
Ending balance: Collectively evaluated for impairment | 2,712 | 2,431
Ending balance | 2,752 | 2,581
Commercial Real Estate Portfolio Segment [Member] |  |
Ending balance: Individually evaluated for impairment | 1,139 | 1,486
Ending balance: Collectively evaluated for impairment | 7,267 | 7,444
Ending balance | 8,406 | 8,930
Agriculture Real Estate [Member] |  |
Ending balance: Individually evaluated for impairment | 0 | 0
Ending balance: Collectively evaluated for impairment | 1,584 | 1,595
Ending balance | 1,584 | 1,595
Commercial Portfolio Segment [Member] |  |
Ending balance: Individually evaluated for impairment | 60 | 115
Ending balance: Collectively evaluated for impairment | 1,110 | 1,338
Ending balance | 1,170 | 1,453
Agriculture [Member] |  |
Ending balance: Individually evaluated for impairment | 132 | 40
Ending balance: Collectively evaluated for impairment | 1,704 | 1,656
Ending balance | 1,836 | 1,696
Consumer and Other [Member] |  |
Ending balance: Individually evaluated for impairment | 21 | 28
Ending balance: Collectively evaluated for impairment | 177 | 207
Ending balance | $ 198 | $ 235

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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
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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=123577603&loc=SL6953423-111524 + Details
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