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Troubled Debt Restructing Modifications (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts | 3 | 4
Financing Receivable, Modification, Pre-Modification Recorded Investment | $ 3,147 | $ 985
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 3,137 | $ 989
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts |  | 1
Financing Receivable, Modification, Pre-Modification Recorded Investment |  | $ 61
Financing Receivable, Modifications, Post-Modifications Recorded Investment |  | $ 66
Construction And Land Development Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts |  | 1
Financing Receivable, Modification, Pre-Modification Recorded Investment |  | $ 116
Financing Receivable, Modifications, Post-Modifications Recorded Investment |  | $ 113
Commercial Real Estate Owner Occupied Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts |  | 1
Financing Receivable, Modification, Pre-Modification Recorded Investment |  | $ 216
Financing Receivable, Modifications, Post-Modifications Recorded Investment |  | $ 218
Commercial Real Estate Other Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts | 3 | 1
Financing Receivable, Modification, Pre-Modification Recorded Investment | $ 3,147 | $ 592
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 3,137 | $ 592
Commercial Real Estate Loans, Total [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modification, Number of Contracts | 3 | 2
Financing Receivable, Modification, Pre-Modification Recorded Investment | $ 3,147 | $ 808
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 3,137 | $ 810

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