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Note 20 - Parent Company Only Financial Statements - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 30, 2022 | Apr. 01, 2022 | Nov. 30, 2022 | Nov. 30, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Net income |  |  |  |  | $ 99,066 | $ 98,905 | $ 60,582
Deferred income taxes |  |  |  |  | (4,682) | 15,272 | (14,530)
Accretion of acquisition fair value adjustments, net |  |  |  |  | (8,581) | (1,340) | (3,271)
Depreciation |  |  |  |  | 7,662 | 5,359 | 5,333
Deferred compensation expense accrued |  |  |  |  | 4,062 | 4,580 | 3,821
Stock-based compensation expense |  |  |  |  | 2,438 | 2,352 | 2,150
Securities gains, net |  |  |  |  |  | 88 | (2,484)
Goodwill impairment | $ 0 |  | $ 0 | $ 0 |  |  | 500
Loss on liability extinguishment, net |  |  |  |  |  |  | 3,907
Net increase (decrease) in interest-bearing deposits at financial institutions |  |  |  |  | 25,066 | 11,304 | 61,295
Purchases |  |  |  |  | (230,501) | (173,204) | (356,127)
Calls, maturities and redemptions |  |  |  |  | 43,638 | 106,442 | 53,007
Sales |  |  |  |  | 111,375 | 23,874 | 38,562
Net cash paid for acquisition |  |  |  |  | (26,871) |  |
Purchase of premises and equipment |  |  |  |  | (33,261) | (13,981) | (4,268)
Net cash provided by (used in) investing activities |  |  |  |  | (634,692) | (411,771) | (704,482)
Proceeds from subordinated notes |  | $ 20,000 |  |  | 100,000 |  | 50,000
Proceeds from issuance of common stock, net |  |  |  |  | 422 | 670 | 1,360
Repurchase and cancellation of shares |  |  |  |  | (52,954) | (14,168) | (3,779)
Net cash provided by (used in) financing activities |  |  |  |  | 538,226 | 299,714 | 577,380
Net increase (decrease) in cash and due from banks |  |  |  |  | 22,233 | (23,839) | (14,925)
Parent Company [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |
Net income |  |  |  |  | 99,066 | 98,905 | 60,582
Deferred income taxes |  |  |  |  | (2,443) | (1,093) | 6,909
Accretion of acquisition fair value adjustments, net |  |  |  |  | 137 | 321 | 378
Depreciation |  |  |  |  | 477 | 486 | 454
Deferred compensation expense accrued |  |  |  |  | 4,062 | 573 |
Stock-based compensation expense |  |  |  |  | 2,438 | 2,352 | 2,150
Loss (gain) on sale of subsidiary/certain assets and liabilities of subsidiary |  |  |  |  |  |  | 158
Gain on sale of fixed assets |  |  |  |  |  | 155 |
Goodwill impairment |  |  |  |  |  |  | 500
Decrease (increase) in other assets |  |  |  |  | 621 | 5 | (7,380)
Increase (decrease) in other liabilities |  |  |  |  | 10,827 | (14,702) | (5,923)
Net cash provided by (used in) operating activities |  |  |  |  | 20,990 | (30,832) | (21,495)
Net increase (decrease) in interest-bearing deposits at financial institutions |  |  |  |  | 5,950 | 1,450 | (1,599)
Net cash received in dissolution of subsidiary |  |  |  |  |  |  | 8,450
Net cash paid for acquisition |  |  |  |  | (26,039) |  |
Net cash received in sale of subsidiary |  |  |  |  |  |  | 195
Purchase of premises and equipment |  |  |  |  | (1,484) | (31) | (272)
Net cash provided by (used in) investing activities |  |  |  |  | (21,873) | 1,044 | 6,774
Proceeds from subordinated notes |  |  |  |  | 100,000 |  | 50,000
Payment of cash dividends on common and preferred stock |  |  |  |  | (3,944) | (3,793) | (3,779)
Proceeds from issuance of common stock, net |  |  |  |  | 422 | 670 | 1,360
Repurchase and cancellation of shares |  |  |  |  | (52,954) | (14,168) | (3,779)
Net cash provided by (used in) financing activities |  |  |  |  | 43,524 | (17,291) | 43,802
Net increase (decrease) in cash and due from banks |  |  |  |  | 42,641 | (47,079) | 29,081
Cash and due from banks, beginning |  |  |  |  | 41,531 | 88,610 | 59,529
Cash and due from banks, ending |  |  |  |  | 84,172 | 41,531 | 88,610
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member] |  |  |  |  |  |  |
Earnings of bank subsidiaries |  |  |  |  | (128,941) | (117,408) | (79,624)
Parent Company [Member] | Reportable Legal Entities [Member] | Non-bank Subsidiaries [Member] |  |  |  |  |  |  |
Earnings of bank subsidiaries |  |  |  |  | (1,294) | (456) | 261
Distributions from bank subsidiaries |  |  |  |  | 40 | 30 | $ 40
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member] |  |  |  |  |  |  |
Distributions from bank subsidiaries |  |  |  |  | 36,000 |  |
Parent Company [Member] | Reportable Legal Entities [Member] | Non-bank Subsidiaries [Member] |  |  |  |  |  |  |
Capital infusion to subsidiaries |  |  |  |  | $ (300) | $ (375) |

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