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Note 4 - Allowance for Credit Losses - Impaired Loans and Related Allowances (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2022
Impaired loans, unpaid principal balance | $ 589 | $ 4,202
Impaired loans, recorded investment with no allowance | 566 | 1,588
Impaired loans, recorded investment with allowance | 0 | 1,085
Impaired loans, total recorded investment | 566 | 2,673
Impaired loans, related allowance | 0 | 888
Impaired loans, average recorded investment | 1,440 | 1,282
Impaired loans, interest income recognized | 11 | 126
Real Estate 1 [Member] | Construction and Land Development [Member] |  |
Impaired loans, unpaid principal balance |  | 2,412
Impaired loans, recorded investment with no allowance |  | 1,045
Impaired loans, recorded investment with allowance |  | 0
Impaired loans, total recorded investment |  | 1,045
Impaired loans, related allowance |  | 0
Impaired loans, average recorded investment |  | 30
Impaired loans, interest income recognized |  | 75
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] |  |
Impaired loans, unpaid principal balance | 560 | 680
Impaired loans, recorded investment with no allowance | 549 | 530
Impaired loans, recorded investment with allowance | 0 | 0
Impaired loans, total recorded investment | 549 | 530
Impaired loans, related allowance | 0 | 0
Impaired loans, average recorded investment | 593 | 580
Impaired loans, interest income recognized | 11 | 11
Real Estate 1 [Member] | Other Real Estate Loans [Member] |  |
Impaired loans, unpaid principal balance | 29 | 26
Impaired loans, recorded investment with no allowance | 17 | 13
Impaired loans, recorded investment with allowance | 0 | 0
Impaired loans, total recorded investment | 17 | 13
Impaired loans, related allowance | 0 | 0
Impaired loans, average recorded investment | 24 | 22
Impaired loans, interest income recognized | 0 | 0
Commercial and Industrial Loans [Member] |  |
Impaired loans, unpaid principal balance | 0 | 1,084
Impaired loans, recorded investment with no allowance | 0 | 0
Impaired loans, recorded investment with allowance | 0 | 1,085
Impaired loans, total recorded investment | 0 | 1,085
Impaired loans, related allowance | 0 | 888
Impaired loans, average recorded investment | 823 | 650
Impaired loans, interest income recognized | $ 0 | $ 40

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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 -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-17 + 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 -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
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