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Loans and Allowance for Loan Losses - Loan Summary (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | $ 2,408,284 |  | $ 1,897,392 |  |  |
Less: Allowance for loan losses | (16,254) | $ (13,431) | (10,243) | $ (9,097) | $ (8,704) | $ (8,275)
Loans, net | 2,392,030 |  | 1,887,149 |  |  |
Purchased Credit Impaired Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 34,959 |  | 26,987 |  |  |
Less: Allowance for loan losses | 0 |  | (156) |  |  |
Loans, net | 34,959 |  | 26,831 |  |  |
All Other Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 2,373,325 |  | 1,870,405 |  |  |
Less: Allowance for loan losses | (16,254) |  | (10,087) |  |  |
Loans, net | 2,357,071 |  | 1,860,318 |  |  |
Commercial Real Estate [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 1,017,033 |  | 905,306 |  |  |
Less: Allowance for loan losses | (6,595) | (5,963) | (4,508) | (4,102) | (4,074) | (3,639)
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 16,517 |  | 15,255 |  |  |
Less: Allowance for loan losses | 0 |  | (17) |  |  |
Commercial Real Estate [Member] | All Other Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 1,000,516 |  | 890,051 |  |  |
Less: Allowance for loan losses | (6,595) |  | (4,491) |  |  |
Consumer Real Estate [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 459,860 |  | 417,482 |  |  |
Less: Allowance for loan losses | (3,313) | (3,301) | (2,576) | (2,189) | (1,949) | (1,789)
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 11,568 |  | 6,541 |  |  |
Less: Allowance for loan losses | 0 |  | (74) |  |  |
Consumer Real Estate [Member] | All Other Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 448,292 |  | 410,941 |  |  |
Less: Allowance for loan losses | (3,313) |  | (2,502) |  |  |
Construction and Land Development [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 279,216 |  | 227,626 |  |  |
Less: Allowance for loan losses | (1,795) | (1,484) | (1,127) | (946) | (854) | (795)
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 6,427 |  | 4,458 |  |  |
Less: Allowance for loan losses | 0 |  | 0 |  |  |
Construction and Land Development [Member] | All Other Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 272,789 |  | 223,168 |  |  |
Less: Allowance for loan losses | (1,795) |  | (1,127) |  |  |
Commercial and Industrial [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 637,450 |  | 337,075 |  |  |
Less: Allowance for loan losses | (4,443) | (2,557) | (1,957) | (1,746) | (1,709) | (1,746)
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 341 |  | 407 |  |  |
Less: Allowance for loan losses | 0 |  | (59) |  |  |
Commercial and Industrial [Member] | All Other Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 637,109 |  | 336,668 |  |  |
Less: Allowance for loan losses | (4,443) |  | (1,898) |  |  |
Consumer and Other [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 14,725 |  | 9,903 |  |  |
Less: Allowance for loan losses | (108) | $ (126) | (75) | $ (114) | $ (118) | $ (306)
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 106 |  | 326 |  |  |
Less: Allowance for loan losses | 0 |  | (6) |  |  |
Consumer and Other [Member] | All Other Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans | 14,619 |  | 9,577 |  |  |
Less: Allowance for loan losses | $ (108) |  | $ (69) |  |  |

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