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Note 4 - Allowance for Loan Losses - Impaired Loans and Related Allowances (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Impaired loans, unpaid principal balance | $ 2,602 | $ 6,967
Impaired loans, recorded investment with no allowance | 795 | 896
Impaired loans, recorded investment with allowance | 1,509 | 5,818
Impaired loans, total recorded investment | 2,304 | 6,714
Impaired loans, related allowance | 55 | 2,223
Impaired loans, average recorded investment | 4,517 | 3,877
Impaired loans, interest income recognized | 9 | 187
Real Estate 1 [Member] | Construction and Land Development [Member] |  |
Impaired loans, unpaid principal balance | 0 | 325
Impaired loans, recorded investment with no allowance | 0 | 276
Impaired loans, recorded investment with allowance | 0 | 0
Impaired loans, total recorded investment | 0 | 276
Impaired loans, related allowance | 0 | 0
Impaired loans, average recorded investment | 91 | 344
Impaired loans, interest income recognized | 0 | 0
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] |  |
Impaired loans, unpaid principal balance | 889 | 568
Impaired loans, recorded investment with no allowance | 766 | 449
Impaired loans, recorded investment with allowance | 0 | 0
Impaired loans, total recorded investment | 766 | 449
Impaired loans, related allowance | 0 | 0
Impaired loans, average recorded investment | 429 | 517
Impaired loans, interest income recognized | 9 | 1
Real Estate 1 [Member] | Other Real Estate Loans [Member] |  |
Impaired loans, unpaid principal balance | 40 | 4,492
Impaired loans, recorded investment with no allowance | 29 | 171
Impaired loans, recorded investment with allowance | 0 | 4,270
Impaired loans, total recorded investment | 29 | 4,441
Impaired loans, related allowance | 0 | 2,065
Impaired loans, average recorded investment | 2,384 | 2,623
Impaired loans, interest income recognized | 0 | 109
Commercial and Industrial Loans [Member] |  |
Impaired loans, unpaid principal balance | 1,673 | 1,582
Impaired loans, recorded investment with no allowance | 0 | 0
Impaired loans, recorded investment with allowance | 1,509 | 1,548
Impaired loans, total recorded investment | 1,509 | 1,548
Impaired loans, related allowance | 55 | 158
Impaired loans, average recorded investment | 1,613 | 393
Impaired loans, interest income recognized | $ 0 | $ 77

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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=123577603&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=123577603&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized on a cash-basis method of accounting 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)(3) -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
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