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ACQUISITIONS - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Feb. 04, 2020 | Dec. 31, 2019 | Oct. 21, 2019 | May 24, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Liabilities: |  |  |  |  |  |
Goodwill | $ 38,838 |  | $ 35,466 |  |  | $ 14,594
Grand Mountain Bancshares, Inc. |  |  |  |  |  |
Liabilities: |  |  |  |  |  |
Fair value of net assets acquired |  | $ 10,514 |  |  |  |
Goodwill |  | 3,372 |  |  |  |
Grand Mountain Bancshares, Inc. | Previously Reported |  |  |  |  |  |
Fair value of assets: |  |  |  |  |  |
Cash and due from banks |  | 5,454 |  |  |  |
Total cash and cash equivalents |  | 5,454 |  |  |  |
Interest bearing deposits in banks |  | 16,040 |  |  |  |
Investment securities available-for-sale |  | 4,369 |  |  |  |
FHLB stock, at par |  | 165 |  |  |  |
Loans, net |  | 98,410 |  |  |  |
Premises and equipment, net |  | 3,879 |  |  |  |
Core deposit intangible |  | 949 |  |  |  |
Deferred tax assets, net |  | 728 |  |  |  |
Interest receivable and other assets |  | 929 |  |  |  |
Total assets acquired |  | 130,923 |  |  |  |
Liabilities: |  |  |  |  |  |
Noninterest bearing |  | 30,937 |  |  |  |
Interest bearing |  | 87,210 |  |  |  |
Total Deposits |  | 118,147 |  |  |  |
Junior subordinated debentures, net |  | 1,575 |  |  |  |
Interest payable and other liabilities |  | 687 |  |  |  |
Total liabilities assumed |  | 120,409 |  |  |  |
Fair value of net assets acquired |  | 10,348 |  |  |  |
Grand Mountain Bancshares, Inc. | Revision of Prior Period, Adjustment |  |  |  |  |  |
Fair value of assets: |  |  |  |  |  |
Investment securities available-for-sale |  | 10 |  |  |  |
Loans, net |  | 484 |  |  |  |
Premises and equipment, net |  | (1,000) |  |  |  |
Core deposit intangible |  | 949 |  |  |  |
Deferred tax assets, net |  | 139 |  |  |  |
Time deposits |  | 25 |  |  |  |
Liabilities: |  |  |  |  |  |
Junior subordinated debentures, net |  | (98) |  |  |  |
Other (assets) liabilities |  | 5 |  |  |  |
Fair value of net assets acquired |  | $ 166 |  |  |  |
TIG Bancorp |  |  |  |  |  |
Liabilities: |  |  |  |  |  |
Fair value of net assets acquired |  |  |  | $ 30,878 |  |
Goodwill |  |  |  | 9,017 |  |
TIG Bancorp | Previously Reported |  |  |  |  |  |
Fair value of assets: |  |  |  |  |  |
Cash and due from banks |  |  |  | 6,146 |  |
Federal funds sold |  |  |  | 55,955 |  |
Total cash and cash equivalents |  |  |  | 62,101 |  |
Investment securities available-for-sale |  |  |  | 26,382 |  |
FHLB stock, at par |  |  |  | 241 |  |
FRB stock, at par |  |  |  | 792 |  |
Loans, net |  |  |  | 137,183 |  |
Premises and equipment, net |  |  |  | 3,480 |  |
OREO |  |  |  | 42 |  |
Core deposit intangible |  |  |  | 3,038 |  |
Deferred tax assets, net |  |  |  | 308 |  |
Interest receivable and other assets |  |  |  | 2,079 |  |
Total assets acquired |  |  |  | 235,646 |  |
Liabilities: |  |  |  |  |  |
Noninterest bearing |  |  |  | 77,157 |  |
Interest bearing |  |  |  | 125,597 |  |
Total Deposits |  |  |  | 202,754 |  |
Interest payable and other liabilities |  |  |  | 2,014 |  |
Total liabilities assumed |  |  |  | 204,768 |  |
Fair value of net assets acquired |  |  |  | 29,164 |  |
TIG Bancorp | Revision of Prior Period, Adjustment |  |  |  |  |  |
Fair value of assets: |  |  |  |  |  |
Investment securities available-for-sale |  |  |  | 627 |  |
Loans, net |  |  |  | 382 |  |
Premises and equipment, net |  |  |  | 180 |  |
OREO |  |  |  | 18 |  |
Core deposit intangible |  |  |  | 3,038 |  |
Deferred tax assets, net |  |  |  | 774 |  |
Time deposits |  |  |  | 308 |  |
Liabilities: |  |  |  |  |  |
Other (assets) liabilities |  |  |  | (159) |  |
Fair value of net assets acquired |  |  |  | $ 1,714 |  |
Uniti Financial Corporation |  |  |  |  |  |
Liabilities: |  |  |  |  |  |
Fair value of net assets acquired |  |  |  |  | $ 50,846 |
Goodwill |  |  |  |  | 11,855 |
Uniti Financial Corporation | Previously Reported |  |  |  |  |  |
Fair value of assets: |  |  |  |  |  |
Cash and due from banks |  |  |  |  | 6,392 |
Federal funds sold |  |  |  |  | 22,080 |
Total cash and cash equivalents |  |  |  |  | 28,472 |
Investment securities available-for-sale |  |  |  |  | 5,096 |
FHLB stock, at par |  |  |  |  | 1,535 |
Loans, net |  |  |  |  | 276,719 |
Premises and equipment, net |  |  |  |  | 463 |
OREO |  |  |  |  | 76 |
Core deposit intangible |  |  |  |  | 566 |
Deferred tax assets, net |  |  |  |  | 234 |
Servicing asset |  |  |  |  | 1,824 |
Interest receivable and other assets |  |  |  |  | 3,033 |
Total assets acquired |  |  |  |  | 318,018 |
Liabilities: |  |  |  |  |  |
Noninterest bearing |  |  |  |  | 143,082 |
Interest bearing |  |  |  |  | 122,704 |
Total Deposits |  |  |  |  | 265,786 |
Interest payable and other liabilities |  |  |  |  | 1,386 |
Total liabilities assumed |  |  |  |  | 267,172 |
Fair value of net assets acquired |  |  |  |  | 47,445 |
Uniti Financial Corporation | Revision of Prior Period, Adjustment |  |  |  |  |  |
Fair value of assets: |  |  |  |  |  |
Loans, net |  |  |  |  | 4,617 |
OREO |  |  |  |  | 32 |
Core deposit intangible |  |  |  |  | 566 |
Deferred tax assets, net |  |  |  |  | 695 |
Time deposits |  |  |  |  | 250 |
Servicing asset |  |  |  |  | 805 |
Liabilities: |  |  |  |  |  |
Fair value of net assets acquired |  |  |  |  | $ 3,401 |

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