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Note 5 - Loans and the Allowance for Credit Losses - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Gross loans | $ 8,162,500 | $ 8,351,841
Net deferred loan fees | (4,597) | (6,696)
Total loans receivable | 8,157,903 | 8,345,145
Commercial Portfolio Segment [Member] |  |
Gross loans | 1,501,732 | 1,578,730
Commercial Real Estate Portfolio Segment [Member] |  |
Gross loans | 5,763,869 | 5,895,545
Commercial Construction Portfolio Segment [Member] |  |
Gross loans | 639,168 | 620,496
Residential Portfolio Segment [Member] |  |
Gross loans | 256,786 | 256,041
Consumer Portfolio Segment [Member] |  |
Gross loans | $ 945 | $ 1,029

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