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Troubled Debt Restructuring (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | $ 180 | $ 208
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 1,726 | 1,850
Impaired Financing Receivable, Trouble Debt Structuring, Total | 1,906 | 2,058
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 49 | 31
Commercial and Industrial Loans [Member] |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 0 | 15
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 33 | 0
Impaired Financing Receivable, Trouble Debt Structuring, Total | 33 | 15
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 33 | 0
Construction And Land Development Loans [Member] |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 0 | 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 0 | 32
Impaired Financing Receivable, Trouble Debt Structuring, Total | 0 | 32
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 | 0
Commercial Real Estate Owner Occupied Loans [Member] |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 180 | 193
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 0 | 0
Impaired Financing Receivable, Trouble Debt Structuring, Total | 180 | 193
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 16 | 31
Commercial Real Estate Other Loans [Member] |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 0 | 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 1,693 | 1,818
Impaired Financing Receivable, Trouble Debt Structuring, Total | 1,693 | 1,818
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 | 0
Commercial Real Estate Loans, Total [Member] |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 180 | 193
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 1,693 | 1,818
Impaired Financing Receivable, Trouble Debt Structuring, Total | 1,873 | 2,011
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | $ 16 | $ 31

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