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Note 5 - Loans - Loans by Credit Quality Indicators, Loans Type and Year of Origination (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Originated current year | $ 1,451,396 | $ 1,072,297 |
Originated year two | 989,755 | 3,318,515 |
Originated year three | 3,277,713 | 2,513,145 |
Originated year four | 2,244,981 | 1,055,105 |
Originated year five | 945,106 | 604,365 |
Originated prior | 1,722,337 | 1,350,456 |
Revolving | 1,705,570 | 1,743,246 |
Revolving converted to term | 1,368 | 1,700 |
Total loans | 12,338,226 | 11,658,829 | [1]
Current-period gross write-offs, current year | 0 | 1,213 |
Current-period gross write-offs, year two | 1,038 | 4,730 |
Current-period gross write-offs, year three | 61 | 2,550 |
Current-period gross write-offs, year four | 214 | 779 |
Current-period gross write-offs, year five | 675 | 125 |
Current-period gross write-offs, prior | 4,305 | 2,077 |
Current-period gross write-offs, revolving | 2,723 | 3,018 |
Current-period gross write-offs, revolving converted to term | 0 | 89 |
Current-period gross write-offs | 9,016 | 14,581 |
Performing Financial Instruments [Member] |  |  |
Total loans | 12,299,058 | 11,637,296 |
Nonperforming Financial Instruments [Member] |  |  |
Total loans | 39,168 | 21,533 |
Commercial Real Estate Portfolio Segment [Member] |  |  |
Originated current year | 386,144 | 347,020 |
Originated year two | 195,562 | 457,265 |
Originated year three | 378,725 | 362,736 |
Originated year four | 310,913 | 168,882 |
Originated year five | 132,212 | 110,853 |
Originated prior | 251,908 | 186,374 |
Revolving | 1,138,216 | 1,190,358 |
Revolving converted to term | 309 | 498 |
Total loans | 2,793,989 | 2,823,986 |
Current-period gross write-offs, current year | 0 | 1,213 |
Current-period gross write-offs, year two | 1,002 | 4,690 |
Current-period gross write-offs, year three | 0 | 2,531 |
Current-period gross write-offs, year four | 52 | 779 |
Current-period gross write-offs, year five | 675 | 4 |
Current-period gross write-offs, prior | 4,225 | 2,014 |
Current-period gross write-offs, revolving | 2,263 | 1,998 |
Current-period gross write-offs, revolving converted to term | 0 | 0 |
Current-period gross write-offs | 8,217 | 13,229 |
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |  |
Total loans | 2,768,695 | 2,816,599 |
Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Total loans | 25,294 | 7,387 |
Real Estate Portfolio Segment[Member] |  |  |
Total loans | 8,042,603 | 7,251,447 |
Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |  |
Originated current year | 214,037 | 217,334 |
Originated year two | 295,952 | 874,936 |
Originated year three | 587,448 | 283,012 |
Originated year four | 205,789 | 49,668 |
Originated year five | 45,997 | 4,866 |
Originated prior | 18,721 | 17,536 |
Revolving | 71,704 | 72,156 |
Revolving converted to term | 0 | 111 |
Total loans | 1,439,648 | 1,519,619 |
Current-period gross write-offs, current year |  | 0 |
Current-period gross write-offs, year two |  | 0 |
Current-period gross write-offs, year three |  | 19 |
Current-period gross write-offs, year four |  | 0 |
Current-period gross write-offs, year five |  | 0 |
Current-period gross write-offs, prior |  | 0 |
Current-period gross write-offs, revolving |  | 0 |
Current-period gross write-offs, revolving converted to term |  | 89 |
Current-period gross write-offs |  | 108 |
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |  |
Originated current year | 258,398 | 155,642 |
Originated year two | 183,228 | 479,775 |
Originated year three | 525,500 | 525,372 |
Originated year four | 508,969 | 309,295 |
Originated year five | 278,338 | 192,723 |
Originated prior | 623,557 | 529,342 |
Revolving | 62,884 | 64,170 |
Revolving converted to term | 813 | 844 |
Total loans | 2,441,687 | 2,257,163 |
Current-period gross write-offs, current year | 0 | 0 |
Current-period gross write-offs, year two | 0 | 0 |
Current-period gross write-offs, year three | 0 | 0 |
Current-period gross write-offs, year four | 100 | 0 |
Current-period gross write-offs, year five | 0 | 117 |
Current-period gross write-offs, prior | 0 | 0 |
Current-period gross write-offs, revolving | 0 | 0 |
Current-period gross write-offs, revolving converted to term | 0 | 0 |
Current-period gross write-offs | 100 | 117 |
Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |  |
Originated current year | 227,811 | 167,656 |
Originated year two | 139,403 | 378,065 |
Originated year three | 341,211 | 231,428 |
Originated year four | 204,992 | 76,685 |
Originated year five | 70,673 | 45,439 |
Originated prior | 93,579 | 62,811 |
Revolving | 332,312 | 287,854 |
Revolving converted to term | 0 | 0 |
Total loans | 1,409,981 | 1,249,938 |
Current-period gross write-offs, current year | 0 | 0 |
Current-period gross write-offs, year two | 28 | 40 |
Current-period gross write-offs, year three | 61 | 0 |
Current-period gross write-offs, year four | 62 | 0 |
Current-period gross write-offs, year five | 0 | 0 |
Current-period gross write-offs, prior | 5 | 14 |
Current-period gross write-offs, revolving | 182 | 0 |
Current-period gross write-offs, revolving converted to term | 0 | 0 |
Current-period gross write-offs | 338 | 54 |
Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |  |
Originated current year | 341,446 | 162,418 |
Originated year two | 172,384 | 1,124,584 |
Originated year three | 1,442,060 | 1,106,055 |
Originated year four | 1,012,619 | 448,781 |
Originated year five | 416,585 | 249,189 |
Originated prior | 731,162 | 551,706 |
Revolving | 74,433 | 101,366 |
Revolving converted to term | 246 | 247 |
Total loans | 4,190,935 | 3,744,346 |
Current-period gross write-offs, current year |  | 0 |
Current-period gross write-offs, year two |  | 0 |
Current-period gross write-offs, year three |  | 0 |
Current-period gross write-offs, year four |  | 0 |
Current-period gross write-offs, year five |  | 0 |
Current-period gross write-offs, prior |  | 0 |
Current-period gross write-offs, revolving |  | 0 |
Current-period gross write-offs, revolving converted to term |  | 0 |
Current-period gross write-offs |  | 0 |
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] |  |  |
Total loans | 8,028,795 | 7,237,517 |
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Construction Loans [Member] |  |  |
Total loans | 1,439,648 | 1,519,508 |
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Owner Occupied Commercial [Member] |  |  |
Total loans | 2,434,932 | 2,250,074 |
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | One to Four Family [Member] |  |  |
Total loans | 1,404,187 | 1,243,603 |
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Other Mortgages [Member] |  |  |
Total loans | 4,189,676 | 3,743,840 |
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] |  |  |
Total loans | 13,808 | 13,930 |
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Construction Loans [Member] |  |  |
Total loans | 0 | 111 |
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Owner Occupied Commercial [Member] |  |  |
Total loans | 6,755 | 7,089 |
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | One to Four Family [Member] |  |  |
Total loans | 5,794 | 6,335 |
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Other Mortgages [Member] |  |  |
Total loans | 1,259 | 506 |
Consumer Portfolio Segment [Member] |  |  |
Originated current year | 23,560 | 22,227 |
Originated year two | 3,226 | 3,890 |
Originated year three | 2,769 | 4,542 |
Originated year four | 1,699 | 1,794 |
Originated year five | 1,301 | 1,295 |
Originated prior | 3,410 | 2,687 |
Revolving | 26,021 | 27,342 |
Revolving converted to term | 0 | 0 |
Total loans | 61,986 | 63,777 |
Current-period gross write-offs, current year | 0 | 0 |
Current-period gross write-offs, year two | 8 | 0 |
Current-period gross write-offs, year three | 0 | 0 |
Current-period gross write-offs, year four | 0 | 0 |
Current-period gross write-offs, year five | 0 | 4 |
Current-period gross write-offs, prior | 75 | 49 |
Current-period gross write-offs, revolving | 278 | 1,020 |
Current-period gross write-offs, revolving converted to term | 0 | 0 |
Current-period gross write-offs | 361 | 1,073 |
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |  |
Total loans | 61,920 | 63,672 |
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Total loans | 66 | 105 |
Pass [Member] |  |  |
Originated current year | 1,446,435 | 1,058,567 |
Originated year two | 984,712 | 3,309,011 |
Originated year three | 3,211,790 | 2,493,493 |
Originated year four | 2,133,278 | 1,038,868 |
Originated year five | 931,163 | 577,813 |
Originated prior | 1,635,978 | 1,284,895 |
Revolving | 1,660,749 | 1,711,574 |
Revolving converted to term | 1,368 | 1,582 |
Total loans | 12,005,473 | 11,475,803 |
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Originated current year | 381,183 | 341,335 |
Originated year two | 193,291 | 455,281 |
Originated year three | 364,536 | 354,034 |
Originated year four | 298,591 | 162,543 |
Originated year five | 127,616 | 100,032 |
Originated prior | 207,332 | 151,527 |
Revolving | 1,097,724 | 1,161,324 |
Revolving converted to term | 309 | 491 |
Total loans | 2,670,582 | 2,726,567 |
Pass [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |  |
Originated current year | 214,037 | 216,745 |
Originated year two | 295,362 | 874,903 |
Originated year three | 557,893 | 283,012 |
Originated year four | 189,368 | 49,668 |
Originated year five | 45,997 | 4,866 |
Originated prior | 17,754 | 16,558 |
Revolving | 71,704 | 72,156 |
Revolving converted to term | 0 | 0 |
Total loans | 1,392,115 | 1,517,908 |
Pass [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |  |
Originated current year | 258,398 | 148,915 |
Originated year two | 181,867 | 478,364 |
Originated year three | 522,801 | 517,667 |
Originated year four | 501,821 | 300,978 |
Originated year five | 270,619 | 181,864 |
Originated prior | 602,983 | 512,752 |
Revolving | 61,533 | 64,170 |
Revolving converted to term | 813 | 844 |
Total loans | 2,400,835 | 2,205,554 |
Pass [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |  |
Originated current year | 227,811 | 166,927 |
Originated year two | 138,582 | 376,964 |
Originated year three | 340,028 | 228,183 |
Originated year four | 201,430 | 75,104 |
Originated year five | 69,045 | 40,697 |
Originated prior | 86,428 | 61,046 |
Revolving | 329,412 | 286,066 |
Revolving converted to term | 0 | 0 |
Total loans | 1,392,736 | 1,234,987 |
Pass [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |  |
Originated current year | 341,446 | 162,418 |
Originated year two | 172,384 | 1,119,609 |
Originated year three | 1,423,763 | 1,106,055 |
Originated year four | 940,369 | 448,781 |
Originated year five | 416,585 | 249,059 |
Originated prior | 718,072 | 540,325 |
Revolving | 74,433 | 100,516 |
Revolving converted to term | 246 | 247 |
Total loans | 4,087,298 | 3,727,010 |
Pass [Member] | Consumer Portfolio Segment [Member] |  |  |
Originated current year | 23,560 | 22,227 |
Originated year two | 3,226 | 3,890 |
Originated year three | 2,769 | 4,542 |
Originated year four | 1,699 | 1,794 |
Originated year five | 1,301 | 1,295 |
Originated prior | 3,409 | 2,687 |
Revolving | 25,943 | 27,342 |
Revolving converted to term | 0 | 0 |
Total loans | 61,907 | 63,777 |
Special Mention [Member] |  |  |
Originated current year | 1,469 | 10,807 |
Originated year two | 2,090 | 4,114 |
Originated year three | 54,637 | 15,314 |
Originated year four | 92,762 | 15,091 |
Originated year five | 10,210 | 13,715 |
Originated prior | 29,418 | 11,527 |
Revolving | 20,014 | 23,346 |
Revolving converted to term | 0 | 7 |
Total loans | 210,600 | 93,921 |
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Originated current year | 1,469 | 4,275 |
Originated year two | 0 | 1,982 |
Originated year three | 11,415 | 5,105 |
Originated year four | 2,545 | 5,765 |
Originated year five | 3,753 | 1,320 |
Originated prior | 9,968 | 3,549 |
Revolving | 17,519 | 21,769 |
Revolving converted to term | 0 | 7 |
Total loans | 46,669 | 43,772 |
Special Mention [Member] | Real Estate Portfolio Segment[Member] | Construction Loans [Member] |  |  |
Originated current year | 0 | 589 |
Originated year two | 590 | 0 |
Originated year three | 27,555 | 0 |
Originated year four | 16,421 | 0 |
Originated year five | 0 | 0 |
Originated prior | 0 | 0 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 44,566 | 589 |
Special Mention [Member] | Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |  |  |
Originated current year | 0 | 5,369 |
Originated year two | 944 | 1,411 |
Originated year three | 1,544 | 7,705 |
Originated year four | 434 | 8,317 |
Originated year five | 5,470 | 8,530 |
Originated prior | 11,476 | 7,539 |
Revolving | 1,351 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 21,219 | 38,871 |
Special Mention [Member] | Real Estate Portfolio Segment[Member] | One to Four Family [Member] |  |  |
Originated current year | 0 | 574 |
Originated year two | 556 | 721 |
Originated year three | 795 | 2,504 |
Originated year four | 1,987 | 1,009 |
Originated year five | 987 | 3,865 |
Originated prior | 4,565 | 439 |
Revolving | 1,116 | 727 |
Revolving converted to term | 0 | 0 |
Total loans | 10,006 | 9,839 |
Special Mention [Member] | Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 13,328 | 0 |
Originated year four | 71,375 | 0 |
Originated year five | 0 | 0 |
Originated prior | 3,408 | 0 |
Revolving | 0 | 850 |
Revolving converted to term | 0 | 0 |
Total loans | 88,112 | 850 |
Special Mention [Member] | Consumer Portfolio Segment [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 0 | 0 |
Originated year four | 0 | 0 |
Originated year five | 0 | 0 |
Originated prior | 0 | 0 |
Revolving | 28 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 28 | 0 |
Substandard [Member] | Performing Financial Instruments [Member] |  |  |
Originated current year | 3,492 | 2,768 |
Originated year two | 417 | 5,008 |
Originated year three | 8,748 | 2,830 |
Originated year four | 7,079 | 368 |
Originated year five | 2,614 | 9,501 |
Originated prior | 40,457 | 44,662 |
Revolving | 22,273 | 4,621 |
Revolving converted to term | 0 | 0 |
Total loans | 85,080 | 69,758 |
Substandard [Member] | Nonperforming Financial Instruments [Member] |  |  |
Originated current year | 0 | 155 |
Originated year two | 2,536 | 382 |
Originated year three | 2,538 | 1,508 |
Originated year four | 11,862 | 778 |
Originated year five | 1,119 | 3,336 |
Originated prior | 16,484 | 9,372 |
Revolving | 2,534 | 3,705 |
Revolving converted to term | 0 | 111 |
Total loans | 37,073 | 19,347 |
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |  |
Originated current year | 3,492 | 1,410 |
Originated year two | 0 | 0 |
Originated year three | 1,008 | 2,830 |
Originated year four | 365 | 368 |
Originated year five | 365 | 9,501 |
Originated prior | 25,694 | 27,962 |
Revolving | 21,602 | 4,360 |
Revolving converted to term | 0 | 0 |
Total loans | 52,526 | 46,431 |
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 2,271 | 2 |
Originated year three | 1,766 | 767 |
Originated year four | 9,412 | 206 |
Originated year five | 478 | 0 |
Originated prior | 8,914 | 3,336 |
Revolving | 1,371 | 2,905 |
Revolving converted to term | 0 | 0 |
Total loans | 24,212 | 7,216 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Construction Loans [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 33 |
Originated year three | 2,000 | 0 |
Originated year four | 0 | 0 |
Originated year five | 0 | 0 |
Originated prior | 967 | 978 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 2,967 | 1,011 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Owner Occupied Commercial [Member] |  |  |
Originated current year | 0 | 1,358 |
Originated year two | 417 | 0 |
Originated year three | 1,155 | 0 |
Originated year four | 6,714 | 0 |
Originated year five | 2,249 | 0 |
Originated prior | 2,423 | 4,292 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 12,958 | 5,650 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | One to Four Family [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 0 | 0 |
Originated year four | 0 | 0 |
Originated year five | 0 | 0 |
Originated prior | 1,692 | 425 |
Revolving | 621 | 261 |
Revolving converted to term | 0 | 0 |
Total loans | 2,313 | 686 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Other Mortgages [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 4,975 |
Originated year three | 4,585 | 0 |
Originated year four | 0 | 0 |
Originated year five | 0 | 0 |
Originated prior | 9,681 | 11,005 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 14,266 | 15,980 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Construction Loans [Member] |  |  |
Originated current year |  | 0 |
Originated year two |  | 0 |
Originated year three |  | 0 |
Originated year four |  | 0 |
Originated year five |  | 0 |
Originated prior |  | 0 |
Revolving |  | 0 |
Revolving converted to term |  | 111 |
Total loans |  | 111 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Owner Occupied Commercial [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 0 | 0 |
Originated year four | 0 | 0 |
Originated year five | 0 | 2,329 |
Originated prior | 6,675 | 4,759 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 6,675 | 7,088 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | One to Four Family [Member] |  |  |
Originated current year | 0 | 155 |
Originated year two | 265 | 380 |
Originated year three | 388 | 741 |
Originated year four | 1,575 | 572 |
Originated year five | 641 | 877 |
Originated prior | 894 | 901 |
Revolving | 1,163 | 800 |
Revolving converted to term | 0 | 0 |
Total loans | 4,926 | 4,426 |
Substandard [Member] | Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Other Mortgages [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 384 | 0 |
Originated year four | 875 | 0 |
Originated year five | 0 | 130 |
Originated prior | 0 | 376 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 1,259 | 506 |
Substandard [Member] | Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 0 | 0 |
Originated year four | 0 | 0 |
Originated year five |  | 0 |
Originated prior | 0 | 0 |
Revolving | 50 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | 50 | 0 |
Current-period gross write-offs, year five | 0 |  |
Substandard [Member] | Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Originated current year | 0 | 0 |
Originated year two | 0 | 0 |
Originated year three | 0 | 0 |
Originated year four | 0 | 0 |
Originated year five | 0 | 0 |
Originated prior | 1 | 0 |
Revolving | 0 | 0 |
Revolving converted to term | 0 | 0 |
Total loans | $ 1 | $ 0 |
[1] | Derived from audited financial statements.

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