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Loans - Summary of Aging Recorded Investment Past-due Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | $ 15,830 | $ 5,047
Loans Not Past Due | 2,181,104 | 2,136,968
Total Loans | 2,196,934 | 2,142,015
Non-Accrual Loans | 11,437 | 914
30-59 Days |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 3,717 | 2,505
60-89 Days |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 1,560 | 1,628
90 Days Or More |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 10,553 | 914
Real Estate | Construction and Land Development |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Loans Not Past Due | 96,020 | 113,235
Total Loans | 96,020 | 113,235
Real Estate | Commercial Real Estate |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 725 | 678
Loans Not Past Due | 792,543 | 758,043
Total Loans | 793,268 | 758,721
Non-Accrual Loans | 725 |
Real Estate | Single-family Residential Mortgages |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 3,464 | 2,498
Loans Not Past Due | 953,790 | 878,751
Total Loans | 957,254 | 881,249
Non-Accrual Loans | 1,334 |
Real Estate | Single-family residential mortgages held for sale |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due |  | 458
Loans Not Past Due | 108,194 | 434,064
Total Loans | 108,194 | 434,522
Real Estate | 30-59 Days | Single-family Residential Mortgages |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 1,454 | 1,548
Real Estate | 60-89 Days | Commercial Real Estate |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due |  | 678
Real Estate | 60-89 Days | Single-family Residential Mortgages |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 1,560 | 950
Real Estate | 60-89 Days | Single-family residential mortgages held for sale |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due |  | 458
Real Estate | 90 Days Or More | Commercial Real Estate |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 725 |
Real Estate | 90 Days Or More | Single-family Residential Mortgages |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 450 |
Commercial | SBA |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 11,641 | 1,871
Loans Not Past Due | 63,344 | 82,629
Total Loans | 74,985 | 84,500
Non-Accrual Loans | 9,378 | 914
Commercial | Commercial and Industrial |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Loans Not Past Due | 274,586 | 304,310
Total Loans | 274,586 | 304,310
Commercial | 30-59 Days | SBA |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 2,263 | 957
Commercial | 90 Days Or More | SBA |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Total Past Due | 9,378 | $ 914
Other |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Loans Not Past Due | 821 |
Total Loans | $ 821 |

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