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Note 3 - Loans and Allowance for Credit Losses - Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, before Allowance for Credit Loss | $ 4,615,160 | $ 4,600,781
Recorded Balance 89 Days and Accruing | 0 | 0
Commercial Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 3,750,307 | 3,707,304
Recorded Balance 89 Days and Accruing | 0 | 0
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 1,337,729 | 1,287,308
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 | 70,806 | 66,936
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 | 729,451 | 748,837
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 | 1,091,210 | 1,128,404
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 | 521,111 | 475,819
Recorded Balance 89 Days and Accruing | 0 | 0
Retail Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 864,853 | 893,477
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 | 780,917 | 827,597
Recorded Balance 89 Days and Accruing | 0 | 0
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 83,936 | 65,880
Recorded Balance 89 Days and Accruing | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 831 | 2,494
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 34 | 17
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 0 | 5
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 | 5 | 12
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 | 29 | 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 | 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 | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Retail Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 797 | 2,477
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 | 516 | 2,365
Financial Asset, 30 to 59 Days Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 281 | 112
Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 99 | 713
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 0 | 0
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 | 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 | 0 | 0
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 | 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 | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Retail Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 99 | 713
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 | 82 | 713
Financial Asset, 60 to 89 Days Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 17 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 6,230 | 1,046
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 5,841 | 864
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 | 309 | 864
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 | 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 | 0 | 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 | 5,532 | 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 | 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 | 389 | 182
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 | 389 | 182
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 | 0 | 0
Financial Asset, Past Due [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 7,160 | 4,253
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 5,875 | 881
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 309 | 869
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 | 5 | 12
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 29 | 0
Financial Asset, Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 5,532 | 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 | 0 | 0
Financial Asset, Past Due [Member] | Retail Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 1,285 | 3,372
Financial Asset, Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 987 | 3,260
Financial Asset, Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 298 | 112
Financial Asset, Not Past Due [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 4,608,000 | 4,596,528
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 3,744,432 | 3,706,423
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 1,337,420 | 1,286,439
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 | 70,801 | 66,924
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 729,422 | 748,837
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 1,085,678 | 1,128,404
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 | 521,111 | 475,819
Financial Asset, Not Past Due [Member] | Retail Portfolio Segment [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 863,568 | 890,105
Financial Asset, Not Past Due [Member] | Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |
Financing Receivable, before Allowance for Credit Loss | 779,930 | 824,337
Financial Asset, Not Past Due [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, before Allowance for Credit Loss | $ 83,638 | $ 65,768

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