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Note 20 - Parent Company Only Financial Statements - Condensed Statements of Income (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 30, 2021 | Nov. 30, 2021 | Nov. 30, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Securities gains |  |  |  | $ (88) | $ 2,484 | $ (30)
Revenue |  |  |  | 300,577 | 312,171 | 294,844
Total interest expense |  |  |  | 21,922 | 31,423 | 60,517
Salaries and employee benefits |  |  |  | 100,907 | 96,268 | 92,063
Acquisition costs |  |  |  | 624 |  |
Post-acquisition compensation, transition and integration costs |  |  |  |  | 214 | 3,582
Disposition costs |  |  |  | 13 | 690 | 3,325
Goodwill impairment | $ 0 | $ 0 | $ 0 |  | 500 | 3,000
Income before taxes |  |  |  | 121,467 | 73,289 | 72,027
Income tax benefit |  |  |  | (22,562) | (12,707) | (14,619)
Net income |  |  |  | 98,905 | 60,582 | 57,408
Parent Company [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |
Total interest income |  |  |  | 3 | 29 | 77
Other |  |  |  | 853 | 289 | 314
Revenue |  |  |  | 118,720 | 79,681 | 77,154
Total interest expense |  |  |  | 8,482 | 6,662 | 5,836
Salaries and employee benefits |  |  |  | 12,446 | 11,825 | 8,739
Professional fees |  |  |  | 1,983 | 2,558 | 1,545
Acquisition costs |  |  |  | 624 |  |
Post-acquisition compensation, transition and integration costs |  |  |  |  | 145 | 3,171
Disposition costs |  |  |  | 13 | 312 | 1,606
Goodwill impairment |  |  |  |  | 500 | 3,000
Other |  |  |  | 2,784 | 2,505 | 2,147
Total expenses |  |  |  | 26,332 | 24,507 | 26,044
Income before taxes |  |  |  | 92,388 | 55,174 | 51,110
Income tax benefit |  |  |  | 6,517 | 5,408 | 6,298
Net income |  |  |  | 98,905 | 60,582 | 57,408
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member] |  |  |  |  |  |
Equity in net income (loss) of bank subsidiaries |  |  |  | 117,408 | 79,624 | 69,966
Parent Company [Member] | Reportable Legal Entities [Member] | Non-bank Subsidiaries [Member] |  |  |  |  |  |
Equity in net income (loss) of bank subsidiaries |  |  |  | $ 456 | $ (261) | $ 6,797

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