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Note 8 - Fair Value Measurements - Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Total assets | $ 612 | $ 121
Fair Value, Inputs, Level 1 [Member] |  |
Total assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Total assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Total assets | 612 | 121
Impaired Loans [Member] | Valuation, Market Approach [Member] |  |
Total assets | 392 | 120
Impaired Loans [Member] | Valuation, Market Approach [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Total assets | 0 | 0
Impaired Loans [Member] | Valuation, Market Approach [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Total assets | 0 | 0
Impaired Loans [Member] | Valuation, Market Approach [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Total assets | 392 | 120
Other Real Estate Owned [Member] |  |
Total assets | 220 | 1
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Total assets | 0 | 0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Total assets | 0 | 0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Total assets | $ 220 | $ 1

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- Definition Fair value portion of asset recognized for present right to economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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