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Note 3 - Loans and Allowance for Credit Losses - Amortized Cost of Modified Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Modified | $ 28,813 |  |
Financial Asset, Not Past Due [Member] |  |  |
Modified | 28,813 |  |
Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] |  |  |
Modified | 28,813 |  |
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 28,813 |  |
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Modified | 17,919 | $ 8,672 | $ 4,973
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 17,919 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Modified | 0 | 0 | 0
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Modified | 0 | 44 | 10,435
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Modified | 10,894 | 130 | 146
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 10,894 |  |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Modified | 0 | 0 | 91
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Modified | 0 | $ 2,736 | $ 627
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, Not Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |
Modified | 0 |  |
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Modified | $ 0 |  |

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- Definition Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 310 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481746/310-40-50-4 + Details
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