v3.26.1
Note 16 - Segment Reporting - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Net interest income (loss) $ 47,712 $ 43,032 $ 92,623 $ 84,189  
Provision for credit losses 495 0 (4,388) 863  
Noninterest income (loss) 32,945 31,763 63,792 59,395  
Compensation 26,155 24,343 50,242 47,304  
Employee taxes and benefits 6,755 6,633 13,395 14,396  
Business services, software and technology expense 5,440 5,868 11,279 11,620  
Merger and acquisition expense 6 11 (28) 297  
Other noninterest expense 2,905 1,422 4,992 4,282  
Total noninterest expense 52,883 48,438 103,274 98,805  
Net income (loss) before taxes 27,279 26,357 57,529 43,916  
Total assets 5,288,718 5,323,822 5,288,718 5,323,822 $ 5,230,084
Other Noninterest [Member]          
Other noninterest expense 14,527 11,583 28,386 25,188  
Operating Segments [Member] | Banking Segment [Member]          
Net interest income (loss) 48,753 43,684 94,298 85,491  
Provision for credit losses 495 0 (4,388) 863  
Noninterest income (loss) 7,039 8,436 13,387 13,083  
Compensation 12,546 12,278 24,257 23,914  
Employee taxes and benefits 3,159 3,289 6,286 7,169  
Business services, software and technology expense 2,679 3,084 5,416 6,048  
Merger and acquisition expense 0 0 0 0  
Total noninterest expense 28,257 27,448 55,650 56,659  
Net income (loss) before taxes 27,040 24,672 56,423 41,052  
Total assets 5,182,014 5,244,506 5,182,014 5,244,506  
Operating Segments [Member] | Banking Segment [Member] | Other Noninterest [Member]          
Other noninterest expense 9,873 8,797 19,691 19,528  
Operating Segments [Member] | Retirement and Benefit Services Segment [Member]          
Net interest income (loss) 0 0 0 0  
Provision for credit losses 0 0 0 0  
Noninterest income (loss) 17,347 16,024 34,754 32,130  
Compensation 7,881 7,064 15,597 14,280  
Employee taxes and benefits 2,214 2,015 4,352 4,326  
Business services, software and technology expense 1,577 1,930 3,444 3,924  
Merger and acquisition expense 0 0 0 0  
Total noninterest expense 15,077 13,166 29,686 26,783  
Net income (loss) before taxes 2,270 2,858 5,068 5,347  
Total assets 31,467 30,817 31,467 30,817  
Operating Segments [Member] | Retirement and Benefit Services Segment [Member] | Other Noninterest [Member]          
Other noninterest expense 3,405 2,157 6,293 4,253  
Operating Segments [Member] | Wealth Management Segment [Member]          
Net interest income (loss) 0 0 0 0  
Provision for credit losses 0 0 0 0  
Noninterest income (loss) 7,705 7,363 14,942 14,267  
Compensation 3,746 3,383 6,777 6,435  
Employee taxes and benefits 638 721 1,384 1,462  
Business services, software and technology expense 1,051 686 2,148 1,304  
Merger and acquisition expense 0 0 0 0  
Total noninterest expense 6,374 5,132 12,101 9,969  
Net income (loss) before taxes 1,331 2,231 2,841 4,298  
Total assets 6,477 6,055 6,477 6,055  
Operating Segments [Member] | Wealth Management Segment [Member] | Other Noninterest [Member]          
Other noninterest expense 939 342 1,792 768  
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]          
Net interest income (loss) (1,041) (652) (1,675) (1,302)  
Provision for credit losses 0 0 0 0  
Noninterest income (loss) 854 (60) 709 (85)  
Compensation 1,982 1,618 3,611 2,675  
Employee taxes and benefits 744 608 1,373 1,439  
Business services, software and technology expense 133 168 271 344  
Merger and acquisition expense 6 11 (28) 297  
Total noninterest expense 3,175 2,692 5,837 5,394  
Net income (loss) before taxes (3,362) (3,404) (6,803) (6,781)  
Total assets 68,760 42,444 68,760 42,444  
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Other Noninterest [Member]          
Other noninterest expense $ 310 $ 287 $ 610 $ 639