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Note 11 - BUSINESS SEGMENT INFORMATION - Selected Financial Information on the Company's Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | $ 125,015 |  |  | $ 125,420 |  |  | $ 361,935 | $ 360,215 |
Interest expense | 60,216 |  |  | 65,698 |  |  | 175,068 | 189,631 |
Net interest income | 64,799 |  |  | 59,722 |  |  | 186,867 | 170,584 |
Provision for credit losses | 4,305 |  |  | 3,484 |  |  | 12,582 | 11,949 |
Noninterest income |  |  |  |  |  |  |  |  |
Capital markets revenue | 23,832 |  |  | 16,290 |  |  | 40,217 | 50,505 |
Other segment revenue items | 12,819 |  |  | 10,867 |  |  | 35,441 | 34,399 |
Total noninterest income | 36,651 |  |  | 27,157 |  |  | 75,658 | 84,904 |
Noninterest expense |  |  |  |  |  |  |  |  |
Salaries and benefits expense | 34,338 |  |  | 31,637 |  |  | 90,176 | 94,576 |
Occupancy expense | 7,363 |  |  | 6,168 |  |  | 20,655 | 19,059 |
Other segment expense items | 14,886 |  |  | 15,760 |  |  | 41,878 | 40,508 |
Total noninterest expense | 56,587 |  |  | 53,565 |  |  | 152,709 | 154,143 |
Income tax expense | 3,844 |  |  | 2,045 |  |  | 5,704 | 5,771 |
Net income | 36,714 | $ 29,019 | $ 25,797 | 27,785 | $ 29,114 | $ 26,726 | 91,530 | 83,625 |
Goodwill | 138,595 |  |  | 138,595 |  |  | 138,595 | 138,595 | $ 138,595
Intangibles | 9,077 |  |  | 11,751 |  |  | 9,077 | 11,751 | 11,061
Total assets | 9,568,302 |  |  | 9,088,565 |  |  | 9,568,302 | 9,088,565 | $ 9,026,030
Operating Segments | Commercial Banking | QCBT |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | 38,591 |  |  | 38,579 |  |  | 111,385 | 111,531 |
Interest expense | 19,013 |  |  | 19,804 |  |  | 54,213 | 58,068 |
Net interest income | 19,578 |  |  | 18,775 |  |  | 57,172 | 53,463 |
Provision for credit losses | 2,015 |  |  | 2,537 |  |  | 5,509 | 8,990 |
Noninterest income |  |  |  |  |  |  |  |  |
Capital markets revenue | 795 |  |  | 270 |  |  | 811 | 270 |
Other segment revenue items | 5,711 |  |  | 4,836 |  |  | 16,199 | 14,132 |
Total noninterest income | 6,506 |  |  | 5,106 |  |  | 17,010 | 14,402 |
Noninterest expense |  |  |  |  |  |  |  |  |
Salaries and benefits expense | 8,220 |  |  | 7,921 |  |  | 23,078 | 24,040 |
Occupancy expense | 1,660 |  |  | 1,484 |  |  | 4,802 | 4,432 |
Other segment expense items | 4,761 |  |  | 6,895 |  |  | 12,859 | 14,386 |
Total noninterest expense | 14,641 |  |  | 16,300 |  |  | 40,739 | 42,858 |
Income tax expense | 1,057 |  |  | 133 |  |  | 2,779 | 646 |
Net income | 8,371 |  |  | 4,911 |  |  | 25,155 | 15,371 |
Goodwill | 2,791 |  |  | 2,791 |  |  | 2,791 | 2,791 |
Total assets | 2,794,136 |  |  | 2,552,962 |  |  | 2,794,136 | 2,552,962 |
Operating Segments | Commercial Banking | CRBT |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | 34,488 |  |  | 33,047 |  |  | 99,369 | 93,576 |
Interest expense | 13,687 |  |  | 14,591 |  |  | 39,079 | 41,112 |
Net interest income | 20,801 |  |  | 18,456 |  |  | 60,290 | 52,464 |
Provision for credit losses | 499 |  |  | 1,696 |  |  | 1,775 | 3,490 |
Noninterest income |  |  |  |  |  |  |  |  |
Capital markets revenue | 16,852 |  |  | 12,706 |  |  | 31,008 | 43,925 |
Other segment revenue items | 3,909 |  |  | 2,574 |  |  | 10,321 | 8,969 |
Total noninterest income | 20,761 |  |  | 15,280 |  |  | 41,329 | 52,894 |
Noninterest expense |  |  |  |  |  |  |  |  |
Salaries and benefits expense | 9,705 |  |  | 8,917 |  |  | 26,518 | 27,237 |
Occupancy expense | 1,918 |  |  | 1,530 |  |  | 5,284 | 4,673 |
Other segment expense items | 3,904 |  |  | 3,674 |  |  | 11,062 | 10,716 |
Total noninterest expense | 15,527 |  |  | 14,121 |  |  | 42,864 | 42,626 |
Income tax expense | 3,577 |  |  | 1,974 |  |  | 5,984 | 7,517 |
Net income | 21,959 |  |  | 15,945 |  |  | 50,996 | 51,725 |
Goodwill | 14,980 |  |  | 14,980 |  |  | 14,980 | 14,980 |
Intangibles | 447 |  |  | 692 |  |  | 447 | 692 |
Total assets | 2,760,379 |  |  | 2,625,943 |  |  | 2,760,379 | 2,625,943 |
Operating Segments | Commercial Banking | CSB |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | 21,798 |  |  | 20,955 |  |  | 62,787 | 60,293 |
Interest expense | 8,742 |  |  | 9,210 |  |  | 25,312 | 26,189 |
Net interest income | 13,056 |  |  | 11,745 |  |  | 37,475 | 34,104 |
Provision for credit losses | 1 |  |  | (186) |  |  | 1,515 | 47 |
Noninterest income |  |  |  |  |  |  |  |  |
Capital markets revenue | 599 |  |  |  |  |  | 661 |  |
Other segment revenue items | 1,493 |  |  | 1,515 |  |  | 4,237 | 4,166 |
Total noninterest income | 2,092 |  |  | 1,515 |  |  | 4,898 | 4,166 |
Noninterest expense |  |  |  |  |  |  |  |  |
Salaries and benefits expense | 5,409 |  |  | 4,585 |  |  | 15,059 | 13,721 |
Occupancy expense | 1,380 |  |  | 925 |  |  | 3,835 | 3,349 |
Other segment expense items | 2,438 |  |  | 2,063 |  |  | 6,926 | 6,243 |
Total noninterest expense | 9,227 |  |  | 7,573 |  |  | 25,820 | 23,313 |
Income tax expense | 160 |  |  | 346 |  |  | (21) | 307 |
Net income | 5,760 |  |  | 5,527 |  |  | 15,059 | 14,603 |
Goodwill | 9,888 |  |  | 9,888 |  |  | 9,888 | 9,888 |
Intangibles | 468 |  |  | 1,006 |  |  | 468 | 1,006 |
Total assets | 1,680,476 |  |  | 1,519,585 |  |  | 1,680,476 | 1,519,585 |
Operating Segments | Commercial Banking | GB |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | 31,779 |  |  | 32,817 |  |  | 91,491 | 95,325 |
Interest expense | 16,396 |  |  | 18,229 |  |  | 47,962 | 53,361 |
Net interest income | 15,383 |  |  | 14,588 |  |  | 43,529 | 41,964 |
Provision for credit losses | 1,790 |  |  | (563) |  |  | 3,783 | (578) |
Noninterest income |  |  |  |  |  |  |  |  |
Capital markets revenue | 5,586 |  |  | 3,314 |  |  | 7,737 | 6,310 |
Other segment revenue items | 2,053 |  |  | 1,990 |  |  | 5,736 | 8,034 |
Total noninterest income | 7,639 |  |  | 5,304 |  |  | 13,473 | 14,344 |
Noninterest expense |  |  |  |  |  |  |  |  |
Salaries and benefits expense | 7,968 |  |  | 7,749 |  |  | 21,946 | 21,752 |
Occupancy expense | 1,834 |  |  | 1,669 |  |  | 5,226 | 5,128 |
Other segment expense items | 3,037 |  |  | 2,985 |  |  | 9,271 | 8,599 |
Total noninterest expense | 12,839 |  |  | 12,403 |  |  | 36,443 | 35,479 |
Income tax expense | 536 |  |  | 520 |  |  | (216) | 604 |
Net income | 7,857 |  |  | 7,532 |  |  | 16,992 | 20,803 |
Goodwill | 110,936 |  |  | 110,936 |  |  | 110,936 | 110,936 |
Intangibles | 8,162 |  |  | 10,053 |  |  | 8,162 | 10,053 |
Total assets | 2,446,635 |  |  | 2,360,301 |  |  | 2,446,635 | 2,360,301 |
Operating Segments | Other Segments |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | 60 |  |  | 77 |  |  | 219 | 237 |
Interest expense | 4,550 |  |  | 4,308 |  |  | 13,120 | 12,751 |
Net interest income | (4,490) |  |  | (4,231) |  |  | (12,901) | (12,514) |
Noninterest income |  |  |  |  |  |  |  |  |
Other segment revenue items | 45,278 |  |  | 35,415 |  |  | 112,005 | 106,219 |
Total noninterest income | 45,278 |  |  | 35,415 |  |  | 112,005 | 106,219 |
Noninterest expense |  |  |  |  |  |  |  |  |
Salaries and benefits expense | 3,036 |  |  | 2,465 |  |  | 3,575 | 7,826 |
Occupancy expense | 571 |  |  | 560 |  |  | 1,508 | 1,477 |
Other segment expense items | 1,390 |  |  | 748 |  |  | 3,698 | 2,376 |
Total noninterest expense | 4,997 |  |  | 3,773 |  |  | 8,781 | 11,679 |
Income tax expense | (1,486) |  |  | (928) |  |  | (2,822) | (3,303) |
Net income | 37,277 |  |  | 28,339 |  |  | 93,145 | 85,329 |
Total assets | 1,424,193 |  |  | 1,304,717 |  |  | 1,424,193 | 1,304,717 |
Intercompany Eliminations |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Interest and dividend income | (1,701) |  |  | (55) |  |  | (3,316) | (747) |
Interest expense | (2,172) |  |  | (444) |  |  | (4,618) | (1,850) |
Net interest income | 471 |  |  | 389 |  |  | 1,302 | 1,103 |
Noninterest income |  |  |  |  |  |  |  |  |
Other segment revenue items | (45,625) |  |  | (35,463) |  |  | (113,057) | (107,121) |
Total noninterest income | (45,625) |  |  | (35,463) |  |  | (113,057) | (107,121) |
Noninterest expense |  |  |  |  |  |  |  |  |
Other segment expense items | (644) |  |  | (605) |  |  | (1,938) | (1,812) |
Total noninterest expense | (644) |  |  | (605) |  |  | (1,938) | (1,812) |
Net income | (44,510) |  |  | (34,469) |  |  | (109,817) | (104,206) |
Total assets | $ (1,537,517) |  |  | $ (1,274,943) |  |  | $ (1,537,517) | $ (1,274,943) |

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