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Note 3 - Loans - Loans by Performance Status (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Total loans | $ 13,696,912 | $ 12,605,836
Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | 3,146,736 | 2,869,894
Real Estate Portfolio Segment[Member] |  |
Total loans | 9,014,925 | 8,173,009
Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |
Total loans | 1,457,628 | 1,489,306
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |
Total loans | 2,739,823 | 2,547,143
Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |
Total loans | 1,671,713 | 1,444,623
Real Estate Portfolio Segment[Member] | Non-owner Occupied Commercial [Member] |  |
Total loans | 4,603,389 | 4,181,243
Consumer Portfolio Segment [Member] |  |
Total loans | 77,623 | 73,627
Performing Financial Instruments [Member] |  |
Total loans | 13,528,083 | 12,563,370
Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | 3,119,879 | 2,844,164
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] |  |
Total loans | 8,909,607 | 8,157,715
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |
Total loans | 1,421,743 | 1,488,645
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |
Total loans | 2,726,245 | 2,538,399
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |
Total loans | 1,661,950 | 1,439,332
Performing Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Non-owner Occupied Commercial [Member] |  |
Total loans | 4,521,412 | 4,179,984
Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Total loans | 76,854 | 72,846
Nonperforming Financial Instruments [Member] |  |
Total loans | 168,829 | 42,466
Nonperforming Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Total loans | 26,857 | 25,730
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] |  |
Total loans | 105,318 | 15,294
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |
Total loans | 35,885 | 661
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |
Total loans | 13,578 | 8,744
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |
Total loans | 9,763 | 5,291
Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment[Member] | Non-owner Occupied Commercial [Member] |  |
Total loans | 81,977 | 1,259
Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] |  |
Total loans | $ 769 | $ 781

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