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Note 3 - Loans Receivable and Allowance for Credit Losses - Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Gross | $ 2,629,657 | $ 2,533,821
Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 11,197 | 7,750
Residential Real Estate [Member] |  |
Financing Receivable, Gross | 2,116 | 425
Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 5,021 | 5,412
Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 18,334 | 13,587
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Gross | 932,689 | 871,337
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 11,197 | 7,750
Commercial Real Estate Portfolio Segment [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 11,197 | 7,750
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |
Financing Receivable, Gross | 170,714 | 170,396
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 2,047 | 2,771
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 2,047 | 2,771
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] |  |
Financing Receivable, Gross | 326,684 | 280,798
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 9,150 | 4,979
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 |
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 9,150 | 4,979
Residential Portfolio Segment [Member] |  |
Financing Receivable, Gross | 769,903 | 742,371
Residential Portfolio Segment [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Residential Portfolio Segment [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 2,116 | 425
Residential Portfolio Segment [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Residential Portfolio Segment [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 2,116 | 425
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] |  |
Financing Receivable, Gross | 629,712 | 617,322
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 1,799 | 164
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 1,799 | 164
Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |
Financing Receivable, Gross | 86,895 | 75,147
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 317 | 261
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 317 | 261
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Gross | 600,779 | 620,181
Consumer Portfolio Segment [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 4,422 | 1,966
Consumer Portfolio Segment [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 4,422 | 1,966
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] |  |
Financing Receivable, Gross | 527,597 | 541,946
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 3,802 | 1,677
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 3,802 | 1,677
Consumer Portfolio Segment [Member] | Marine Loans [Member] |  |
Financing Receivable, Gross | 70,220 | 74,931
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 620 | 289
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | 620 | 289
Commercial Business Portfolio Segment [Member] |  |
Financing Receivable, Gross | 326,286 | 299,932
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Gross | 311,173 | 287,014
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Gross | 0 | 0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Other Nonreal Estate [Member] |  |
Financing Receivable, Gross | 599 | 3,446
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Collateral Dependent Loans [Member] |  |
Financing Receivable, Gross | $ 599 | $ 3,446

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