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Loans - Schedule of Net Loans (Details) $ in Thousands | Dec. 31, 2020 USD ($) | Jan. 01, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
--- | --- | --- | --- | --- | ---
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 3,371,789 |  | $ 2,809,197 |  |
Less: unearned discount |  |  | (5,162) |  |
Total loans | 3,371,789 |  | 2,804,035 |  |
Less: Allowance for credit/loan losses | (34,340) | $ (19,473) | (19,473) | $ (19,704) | $ (19,693)
Net loans | 3,337,449 | $ 2,804,035 | 2,784,562 |  |
Net deferred loan origination fees (costs) and unearned discount included in the above loan table | $ 8,789 |  | $ 3,092 |  |
Total loans | 1.000 | 0.255 | 1.000 |  |
Less: unearned discount |  |  | (0.20%) |  |
Farmland |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 23,316 |  |  |  |
Less: Allowance for credit/loan losses | $ (221) | $ 0 | $ (190) |  |
Net loans |  | 0 |  |  |
Total loans | 0.007 |  |  |  |
Owner-occupied, nonfarm nonresidential properties |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 407,924 |  |  |  |
Less: Allowance for credit/loan losses | $ (3,700) | 0 | (2,390) |  |
Net loans |  | 0 |  |  |
Total loans | 0.121 |  |  |  |
Agricultural production and other loans to farmers |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 2,664 |  |  |  |
Less: Allowance for credit/loan losses | $ (24) | 0 | (25) |  |
Net loans |  | 0 |  |  |
Total loans | 0.001 |  |  |  |
Commercial and Industrial |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 663,550 |  |  |  |
Less: Allowance for credit/loan losses | $ (6,233) | 0 | (4,105) |  |
Net loans |  | 0 |  |  |
Total loans | 0.197 |  |  |  |
Obligations (other than securities and leases) of states and political subdivisions |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 132,818 |  |  |  |
Less: Allowance for credit/loan losses | $ (998) | 0 | (1,022) |  |
Net loans |  | 0 |  |  |
Total loans | 0.039 |  |  |  |
Other loans |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 11,961 |  |  |  |
Less: Allowance for credit/loan losses | $ (68) | 0 | (41) |  |
Net loans |  | 0 |  |  |
Total loans | 0.004 |  |  |  |
Other construction loans and all land development and other land loans |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 205,734 |  |  |  |
Less: Allowance for credit/loan losses | $ (1,956) | 0 | (2,327) |  |
Net loans |  | 0 |  |  |
Total loans | 0.061 |  |  |  |
Multifamily (5 or more) residential properties |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 212,815 |  |  |  |
Less: Allowance for credit/loan losses | $ (2,724) | 0 | (1,087) |  |
Net loans |  | 0 |  |  |
Total loans | 0.063 |  |  |  |
Non-owner occupied, nonfarm nonresidential properties |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 640,945 |  |  |  |
Less: Allowance for credit/loan losses | $ (8,658) |  | (3,980) |  |
Total loans | 0.190 |  |  |  |
1-4 Family Construction |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 27,768 |  |  |  |
Less: Allowance for credit/loan losses | $ (82) | 0 | (56) |  |
Net loans |  | 0 |  |  |
Total loans | 0.008 |  |  |  |
Home equity lines of credit |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 109,444 |  |  |  |
Less: Allowance for credit/loan losses | $ (985) | 0 | (180) |  |
Net loans |  | 0 |  |  |
Total loans | 0.032 |  |  |  |
Residential Mortgages secured by first liens |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 777,030 |  |  |  |
Less: Allowance for credit/loan losses | $ (4,539) | 0 | (1,220) |  |
Net loans |  | 0 |  |  |
Total loans | 0.230 |  |  |  |
Residential Mortgages secured by junior liens |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 53,726 |  |  |  |
Less: Allowance for credit/loan losses | $ (241) | 0 | (114) |  |
Net loans |  | 0 |  |  |
Total loans | 0.016 |  |  |  |
Commercial, industrial, and agricultural |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans |  |  | 1,046,665 |  |
Less: Allowance for credit/loan losses |  | (8,287) | $ (8,287) | (7,341) | (6,160)
Net loans |  | 1,046,665 |  |  |
Total loans |  |  | 0.373 |  |
Commercial mortgages |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans |  |  | $ 814,002 |  |
Less: Allowance for credit/loan losses |  | (6,952) | $ (6,952) | (7,490) | (9,007)
Net loans |  | 814,002 |  |  |
Total loans |  |  | 0.290 |  |
Other revolving credit plans |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 25,507 |  |  |  |
Less: Allowance for credit/loan losses | $ (507) | 0 | $ (296) |  |
Net loans |  | 0 |  |  |
Total loans | 0.008 |  |  |  |
Automobile |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 25,344 |  |  |  |
Less: Allowance for credit/loan losses | $ (132) | 0 | (156) |  |
Net loans |  | 0 |  |  |
Total loans | 0.008 |  |  |  |
Residential Real Estate |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans |  |  | 814,030 |  |
Less: Allowance for credit/loan losses |  | (1,499) | (1,499) | (2,156) | (2,033)
Net loans |  | 814,030 | $ 814,030 |  |
Total loans |  |  | 0.290 |  |
Other consumer |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 42,792 |  |  |  |
Less: Allowance for credit/loan losses | $ (2,962) | 0 | $ (1,960) |  |
Net loans |  | 0 |  |  |
Total loans | 0.013 |  |  |  |
Consumer |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans |  |  | 124,785 |  |
Less: Allowance for credit/loan losses |  | (2,411) | (2,411) | (2,377) | (2,179)
Net loans |  |  | $ 124,785 |  |
Total loans |  |  | 0.045 |  |
Credit Cards |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 8,115 |  | $ 7,569 |  |
Less: Allowance for credit/loan losses | $ (66) | (84) | (84) | (103) | (120)
Net loans |  | 7,569 | $ 7,569 |  |
Total loans | 0.002 |  | 0.003 |  |
Overdrafts |  |  |  |  |
Loan Portfolio By Loan Grade [Line Items] |  |  |  |  |
Loans | $ 336 |  | $ 2,146 |  |
Less: Allowance for credit/loan losses | $ (244) | (240) | $ (240) | $ (237) | $ (194)
Net loans |  | $ 2,146 |  |  |
Total loans | 0.000 |  | 0.001 |  |

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