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CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Cash Flow (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
OPERATING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |
Net income | $ 9,959 | $ 11,828 | $ 9,247 | $ 8,085 | $ 11,838 | $ 6,491 | $ 18,034 | $ 1,048 | $ 39,121 | $ 37,411 | $ 26,991
Equity in undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  | (17,428) | (24,174) | 0
Stock-based compensation |  |  |  |  |  |  |  |  | 2,634 | 2,353 | 1,759
Other assets |  |  |  |  |  |  |  |  | (1,535) | (27,286) | (14,753)
Net cash from operating activities |  |  |  |  |  |  |  |  | 34,815 | 112,235 | (8,062)
INVESTING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |
Net cash from investing activities |  |  |  |  |  |  |  |  | (571,954) | (294,111) | (120,055)
FINANCING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |
Common stock repurchased |  |  |  |  |  |  |  |  | 0 | (15,746) | 0
Preferred stock redemption |  |  |  |  |  |  |  |  | (7,334) | 0 | (500)
Common stock options exercised |  |  |  |  |  |  |  |  | 4,930 | 4,464 | 2,164
Cash dividends paid on common stock |  |  |  |  |  |  |  |  | (6,038) | (4,275) | (2,290)
Cash dividends paid on preferred stock |  |  |  |  |  |  |  |  | (35) | (461) | (479)
Net cash from financing activities |  |  |  |  |  |  |  |  | 580,683 | 417,767 | 133,898
Net change in cash and cash equivalents |  |  |  |  |  |  |  |  | 43,544 | 235,891 | 5,781
Cash and cash equivalents at beginning of period |  |  |  | 263,893 |  |  |  | 28,002 | 263,893 | 28,002 | 22,221
Cash and cash equivalents at end of period | 307,437 |  |  |  | 263,893 |  |  |  | 307,437 | 263,893 | 28,002
Noncash common stock converted from subordinated debt |  |  |  |  |  |  |  |  | 0 | 0 | 1,000
Issuance of subsidiary membership units |  |  |  |  |  |  |  |  | 500 | 0 | 0
Parent Company |  |  |  |  |  |  |  |  |  |  |
OPERATING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 39,121 | 37,411 | 26,991
Equity in undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  | (40,324) | (45,445) | (32,700)
Stock-based compensation |  |  |  |  |  |  |  |  | 3,208 | 2,278 | 1,759
Other assets |  |  |  |  |  |  |  |  | (6,849) | (2,101) | (4,104)
Other liabilities |  |  |  |  |  |  |  |  | 11,390 | 1,767 | 344
Net cash from operating activities |  |  |  |  |  |  |  |  | 6,546 | (6,090) | (7,710)
INVESTING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |
Investment in subsidiaries |  |  |  |  |  |  |  |  | (15,871) | (3,713) | 16,791
Net cash from investing activities |  |  |  |  |  |  |  |  | (15,871) | (3,713) | 16,791
FINANCING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |
Proceeds from stock issuance |  |  |  |  |  |  |  |  | 0 | 240 | 1,033
Subordinated debt issuance (redemption), net of issuance costs |  |  |  |  |  |  |  |  | 29,448 | 40,000 | (12,400)
Common stock repurchased |  |  |  |  |  |  |  |  | 0 | (15,657) | 0
Preferred stock redemption |  |  |  |  |  |  |  |  | (7,334) | 0 | (500)
Common stock options exercised |  |  |  |  |  |  |  |  | 4,930 | 4,464 | 2,164
Withholding cash issued in lieu of restricted stock |  |  |  |  |  |  |  |  | (249) | 0 | 0
Cash dividends paid on common stock |  |  |  |  |  |  |  |  | (6,038) | (4,275) | (2,290)
Cash dividends paid on preferred stock |  |  |  |  |  |  |  |  | (35) | (461) | (479)
Net cash from financing activities |  |  |  |  |  |  |  |  | 21,222 | 24,311 | (12,472)
Net change in cash and cash equivalents |  |  |  |  |  |  |  |  | 11,897 | 14,508 | (3,391)
Cash and cash equivalents at beginning of period |  |  |  | $ 15,566 |  |  |  | $ 1,058 | 15,566 | 1,058 | 4,449
Cash and cash equivalents at end of period | $ 27,463 |  |  |  | $ 15,566 |  |  |  | 27,463 | 15,566 | 1,058
Noncash common stock converted from subordinated debt |  |  |  |  |  |  |  |  | 0 | 0 | 1,000
Issuance of subsidiary membership units |  |  |  |  |  |  |  |  | $ 500 | $ 0 | $ 0

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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from capital contributions to an entity associated with a dividend reinvestment plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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