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Loans and Allowance for Loan Losses - Narrative (Details) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2019 USD ($) loan segment | Dec. 31, 2018 USD ($) | Jun. 30, 2018 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loan portfolio segments | segment | 5 |  |
Number of contracts | loan | 0 |  |
Number of contracts, subsequent payment default | loan | 0 |  |
Other real estate owned | $ | $ 1,814 | $ 2,495 |
Trouble Debt Restructuring [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans that met criteria for restructured | $ | $ 62 | $ 116 |
Number of contracts, nonaccrual | loan | 0 |  |
Commercial Real Estate [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans that met criteria for restructured | $ |  |  | $ 622
Number of contracts | loan | 1 |  |
Residential Real Estate [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Other real estate owned | $ | $ 257 |  |

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