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Note 5 - Loans - Summary of Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Total loans | $ 11,880,696 | $ 11,658,829 | [1] |  |
Less: Allowance for credit losses | (155,892) | (153,317) | [1] | $ (148,964) | $ (146,297)
Net Loans | $ 11,724,804 | $ 11,505,512 | [1] |  |
Financing receivable, gross percentage | 100.00% | 100.00% |  |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Total loans | $ 2,834,102 | $ 2,823,986 |  |  |
Financing receivable, gross percentage | 23.85% | 24.22% |  |  |
Real Estate Portfolio Segment[Member] |  |  |  |  |
Total loans | $ 7,439,688 | $ 7,251,447 |  |  |
Financing receivable, gross percentage | 62.62% | 62.20% |  |  |
Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |  |  |  |
Total loans | $ 1,546,716 | $ 1,519,619 |  |  |
Less: Allowance for credit losses | $ (45,689) | $ (44,658) |  | (40,483) | (42,889)
Financing receivable, gross percentage | 13.02% | 13.03% |  |  |
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |  |  |  |
Total loans | $ 2,377,042 | $ 2,257,163 |  |  |
Financing receivable, gross percentage | 20.01% | 19.36% |  |  |
Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |  |  |  |
Total loans | $ 1,284,888 | $ 1,249,938 |  |  |
Financing receivable, gross percentage | 10.81% | 10.72% |  |  |
Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |  |  |  |
Total loans | $ 3,777,758 | $ 3,744,346 |  |  |
Financing receivable, gross percentage | 31.80% | 32.12% |  |  |
Consumer Portfolio Segment [Member] |  |  |  |  |
Total loans | $ 60,190 | $ 63,777 |  |  |
Less: Allowance for credit losses | $ (1,541) | $ (1,412) |  | $ (2,430) | $ (1,926)
Financing receivable, gross percentage | 0.51% | 0.55% |  |  |
[1] | derived from audited financial statements.

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