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Note 21 - Parent Company Only Financial Statements - Condensed Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Cash and due from banks | $ 97,123 | $ 59,723 |  |
Premises and equipment, net | 123,277 | 117,948 |  |
Other assets | 224,975 | 186,418 |  |
Total assets | 8,538,894 | 7,948,837 | $ 6,096,132 |
Subordinated notes | 233,064 | 232,662 |  |
Junior subordinated debentures | 48,731 | 48,602 |  |
Other liabilities | 204,263 | 165,301 |  |
Total liabilities | 7,652,298 | 7,176,113 |  |
Common stock | 16,749 | 16,796 |  |
Additional paid-in capital | 370,814 | 370,712 |  |
Retained earnings | 554,992 | 450,114 |  |
Total stockholders' equity | 886,596 | 772,724 | $ 677,010 | $ 593,793
Total liabilities and stockholders' equity | 8,538,894 | 7,948,837 |  |
Reportable Legal Entities [Member] | Parent Company [Member] |  |  |  |
Cash and due from banks | 53,331 | 84,172 |  |
Premises and equipment, net | 9,286 | 9,639 |  |
Other assets | 14,512 | 10,157 |  |
Total assets | 1,206,061 | 1,077,137 |  |
Subordinated notes | 233,064 | 232,662 |  |
Junior subordinated debentures | 48,731 | 48,602 |  |
Other liabilities | 37,670 | 23,149 |  |
Total liabilities | 319,465 | 304,413 |  |
Common stock | 16,749 | 16,796 |  |
Additional paid-in capital | 370,814 | 370,712 |  |
Retained earnings | 554,992 | 450,114 |  |
Accumulated other comprehensive income (loss) | (55,959) | (64,898) |  |
Total stockholders' equity | 886,596 | 772,724 |  |
Total liabilities and stockholders' equity | 1,206,061 | 1,077,137 |  |
Reportable Legal Entities [Member] | Parent Company [Member] | Bank Subsidiaries [Member] |  |  |  |
Investment in bank subsidiaries | 1,122,803 | 965,973 |  |
Reportable Legal Entities [Member] | Parent Company [Member] | Non-bank Subsidiaries [Member] |  |  |  |
Investment in bank subsidiaries | $ 6,129 | $ 7,196 |  |

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