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Note 3 - Loans and Allowance for Credit Losses - Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Financing Receivable, before Allowance for Credit Loss, Total |  | $ 4,303,758 | $ 3,916,619
Recorded Balance 89 Days and Accruing |  | 0 | 0
Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 3,415,299 | 3,131,830
Recorded Balance 89 Days and Accruing |  | 0 | 0
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total | [1] | 1,254,586 | 1,185,083
Recorded Balance 89 Days and Accruing |  | 0 | 0
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 74,753 | 61,873
Recorded Balance 89 Days and Accruing |  | 0 | 0
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 717,667 | 639,192
Recorded Balance 89 Days and Accruing |  | 0 | 0
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total | [2] | 1,035,684 | 979,214
Recorded Balance 89 Days and Accruing |  | 0 | 0
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total | [2] | 332,609 | 266,468
Recorded Balance 89 Days and Accruing |  | 0 | 0
Retail Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 888,459 | 784,789
Recorded Balance 89 Days and Accruing |  | 0 | 0
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total | [3] | 837,406 | 755,036
Recorded Balance 89 Days and Accruing |  | 0 | 0
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total | [1] | 51,053 | 29,753
Recorded Balance 89 Days and Accruing |  | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,035 | 1,349
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 4 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 4 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Retail Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,031 | 1,349
Financial Asset, 30 to 59 Days Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 934 | 1,334
Financial Asset, 30 to 59 Days Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 97 | 15
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 145 | 6,042
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 5,953
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 5,705
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 248
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Retail Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 145 | 89
Financial Asset, 60 to 89 Days Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 145 | 88
Financial Asset, 60 to 89 Days Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 1
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 357 | 365
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 319 | 249
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 249 | 249
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 70 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Retail Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 38 | 116
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 38 | 116
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Past Due [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,537 | 7,756
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 323 | 6,202
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 253 | 5,954
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 70 | 248
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 0 | 0
Financial Asset, Past Due [Member] | Retail Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,214 | 1,554
Financial Asset, Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,117 | 1,538
Financial Asset, Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 97 | 16
Financial Asset, Not Past Due [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 4,302,221 | 3,908,863
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 3,414,976 | 3,125,628
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,254,333 | 1,179,129
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 74,753 | 61,873
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 717,597 | 638,944
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 1,035,684 | 979,214
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 332,609 | 266,468
Financial Asset, Not Past Due [Member] | Retail Portfolio Segment [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 887,245 | 783,235
Financial Asset, Not Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | 836,289 | 753,498
Financial Asset, Not Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |
Financing Receivable, before Allowance for Credit Loss, Total |  | $ 50,956 | $ 29,737
[1] | Credit cards to business customers were reclassified from other consumer loans to commercial and industrial during the year ended December 31, 2023. Credit cards to business customers totaled $17.8 million and $16.6 million as of December 31, 2023, and 2022, respectively.
[2] | We have reclassified multi-family construction loans from real estate - non-owner occupied loans to real estate - multi-family and residential rental loans. The table above reflects a classification change of $54.5 million as of December 31, 2022. All the tables that follow have been adjusted to reflect the reclassifications as of the applicable dates.
[3] | Home equity lines of credit were reclassified from 1-4 family mortgage loans to other consumer loans during the year ended December 31, 2023. Home equity lines of credit totaled $38.1 million and $37.4 million as of December 31, 2023, and 2022, respectively.

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