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Loans and Allowance for Loan Losses - Troubled Debt Restructuring by Class (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 USD ($) loan | Dec. 31, 2018 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of loans removed from TDR designation | loan | 0 |
Recorded investment of loans removed from TDR resignation | $ 150,000 |
Recorded investment in Troubled Debt Restructurings | 14,088,000 | $ 14,406,000
TDR loans acquired | $ 0 | 0
TDR loans on non-accrual status, quantity | loan | 2 |
TDR loans on non-accrual status | $ 64,000 | 65,000
Commercial loans | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded investment in Troubled Debt Restructurings | 1,198,000 | 1,506,000
Commercial real estate loans | Commercial real estate, owner-occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded investment in Troubled Debt Restructurings | 7,001,000 | 6,993,000
Commercial real estate loans | Commercial real estate, investor |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded investment in Troubled Debt Restructurings | 1,812,000 | 1,821,000
Commercial real estate loans | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded investment in Troubled Debt Restructurings | 2,691,000 | 2,688,000
Residential loans | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded investment in Troubled Debt Restructurings | $ 251,000 | 251,000
Residential loans | Other residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of loans removed from TDR designation | loan | 1 |
Recorded investment in Troubled Debt Restructurings | $ 460,000 | 462,000
Consumer loans | Installment and other consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Recorded investment in Troubled Debt Restructurings | $ 675,000 | $ 685,000

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