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Loans and Allowance - Summary of Troubled Debt Restructurings by Modification Type (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | $ 1,551 | $ 164 | $ 1,551 | $ 253
Term Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 1,217 |  | 1,217 | 0
Rate Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 111 |  | 111 | 89
Combination |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 223 | 164 | 223 | 164
Commercial and industrial loans |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 652 |  | 652 |
Commercial and industrial loans | Term Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 652 |  | 652 |
Commercial and industrial loans | Rate Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 0 |  |  |
Commercial and industrial loans | Combination |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 0 |  | 0 |
Commercial and farmland |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 565 |  | 565 |
Commercial and farmland | Term Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 565 |  | 565 |
Commercial and farmland | Combination |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 0 |  | 0 |
Residential |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 334 | 164 | 334 | 253
Residential | Term Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification |  |  | 0 |
Residential | Rate Modification |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | 111 |  | 111 | 89
Residential | Combination |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Modification | $ 223 | $ 164 | $ 223 | $ 164

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