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Note 3 - Loans Receivable and Allowance for Credit Losses - Loans - Schedule of Amortized Cost of Nonaccrual Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Nonaccrual, No Allowance |  | $ 13,747 | $ 5,682
Financing Receivable, Nonaccrual, With Allowance |  | 4,627 | 7,919
Financing Receivable, Nonaccrual | [1] | 18,374 | 13,601
Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 11,197 | 2,771
Financing Receivable, Nonaccrual, With Allowance |  | 0 | 4,979
Financing Receivable, Nonaccrual | [1] | 11,197 | 7,750
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 2,047 | 2,771
Financing Receivable, Nonaccrual, With Allowance |  | 0 | 0
Financing Receivable, Nonaccrual | [1] | 2,047 | 2,771
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 9,150 | 0
Financing Receivable, Nonaccrual, With Allowance |  | 0 | 4,979
Financing Receivable, Nonaccrual | [1] | 9,150 | 4,979
Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 2,116 | 425
Financing Receivable, Nonaccrual, With Allowance |  | 0 | 0
Financing Receivable, Nonaccrual | [1] | 2,116 | 425
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 1,799 | 164
Financing Receivable, Nonaccrual, With Allowance |  | 0 | 0
Financing Receivable, Nonaccrual | [1] | 1,799 | 164
Residential Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 317 | 261
Financing Receivable, Nonaccrual, With Allowance |  | 0 | 0
Financing Receivable, Nonaccrual | [1] | 317 | 261
Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual, With Allowance |  | 4,462 | 1,980
Financing Receivable, Nonaccrual | [1] | 4,462 | 1,980
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual, With Allowance |  | 3,802 | 1,677
Financing Receivable, Nonaccrual | [1] | 3,802 | 1,677
Consumer Portfolio Segment [Member] | Marine Loans [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual, With Allowance |  | 620 | 289
Financing Receivable, Nonaccrual | [1] | 620 | 289
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual, With Allowance |  | 40 | 14
Financing Receivable, Nonaccrual | [1] | 40 | 14
Commercial Business Portfolio Segment [Member] |  |  |
Financing Receivable, Nonaccrual | [1] | 599 | 3,446
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] |  |  |
Financing Receivable, Nonaccrual, No Allowance |  | 434 | 2,486
Financing Receivable, Nonaccrual, With Allowance |  | 165 | 960
Financing Receivable, Nonaccrual | [1] | $ 599 | $ 3,446
[1] | Includes loans less than 90 days past due as applicable.

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- Definition Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
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