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Note 2 - Loans and Allowance for Credit Losses - Impaired Loans and Associated Reserves (Details) $ in Thousands | Mar. 31, 2023 USD ($)
--- | ---
Principal balance | $ 3,719 |
Total recorded investment | 3,032 | [1]
Recorded investment for which there is no related allowance | 3,032 | [1]
Recorded investment for which there is a related allowance | 0 |
Related allowance | 0 |
Recorded investment for which there is no related allowance | 3,032 | [1]
Recorded investment for which there is a related allowance | 0 |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |
Principal balance | 186 |
Total recorded investment | 186 |
Recorded investment for which there is no related allowance | 186 |
Recorded investment for which there is a related allowance | 0 |
Related allowance | 0 |
Recorded investment for which there is no related allowance | 186 |
Recorded investment for which there is a related allowance | 0 |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |
Principal balance | 3,248 |
Total recorded investment | 2,583 | [1]
Recorded investment for which there is no related allowance | 2,583 | [1]
Recorded investment for which there is a related allowance | 0 |
Related allowance | 0 |
Recorded investment for which there is no related allowance | 2,583 | [1]
Recorded investment for which there is a related allowance | 0 |
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |
Principal balance | 285 |
Total recorded investment | 263 | [1]
Recorded investment for which there is no related allowance | 263 | [1]
Recorded investment for which there is a related allowance | 0 |
Related allowance | 0 |
Recorded investment for which there is no related allowance | 263 | [1]
Recorded investment for which there is a related allowance | $ 0 |
[1] | Recorded investment is net of charge-offs and interest paid while a loan is in nonaccrual status.

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- Definition 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 14A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A + 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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- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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 (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
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