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Troubled Debt Restructuring (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | $ 2,252 |  | $ 2,252 |  | $ 1,601
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 1,256 |  | 1,256 |  | 3,222
Impaired Financing Receivable, Trouble Debt Structuring, Total | 3,508 |  | 3,508 |  | 4,823
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 202 |  | 202 |  | 260
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Financing Receivable, Modification, Number of Contracts | 2 | 3 | 2 | 5 |
Financing Receivable, Modification, Pre-Modification Recorded Investment | 1,302 | 2,166 | 1,302 | 2,727 |
Financing Receivable, Modifications, Post-Modifications Recorded Investment | 1,304 | 2,166 | 1,304 | 2,727 |
Financing Receivable, Modifications, Subsequent Default [Line Items] |  |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1 | 1 | 1 | 2 |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 272 | 426 | 272 | 1,623 |
Commercial and Industrial Loans [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 83 |  | 83 |  | 124
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 0 |  | 0 |  | 0
Impaired Financing Receivable, Trouble Debt Structuring, Total | 83 |  | 83 |  | 124
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 |  | 0 |  | 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 |  | 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 615 |  | 615 |  | 1,582
Impaired Financing Receivable, Trouble Debt Structuring, Total | 615 |  | 615 |  | 1,582
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 |  | 0 |  | 88
Financing Receivable, Modifications, Subsequent Default [Line Items] |  |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts |  |  |  | 1 |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment |  |  |  | 1,197 |
Commercial Real Estate Owner Occupied Loans [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 854 |  | 854 |  | 875
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 272 |  | 272 |  | 285
Impaired Financing Receivable, Trouble Debt Structuring, Total | 1,126 |  | 1,126 |  | 1,160
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 110 |  | 110 |  | 110
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Financing Receivable, Modification, Number of Contracts |  | 1 |  | 1 |
Financing Receivable, Modification, Pre-Modification Recorded Investment |  | 882 |  | 882 |
Financing Receivable, Modifications, Post-Modifications Recorded Investment |  | 882 |  | 882 |
Financing Receivable, Modifications, Subsequent Default [Line Items] |  |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1 |  | 1 |  |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 272 |  | 272 |  |
Commercial Real Estate Other Loans [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 592 |  | 592 |  | 602
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 209 |  | 209 |  | 429
Impaired Financing Receivable, Trouble Debt Structuring, Total | 801 |  | 801 |  | 1,031
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 92 |  | 92 |  | 62
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Financing Receivable, Modification, Number of Contracts | 1 | 1 | 1 | 2 |
Financing Receivable, Modification, Pre-Modification Recorded Investment | 590 | 606 | 590 | 1,037 |
Financing Receivable, Modifications, Post-Modifications Recorded Investment | 592 | 610 | 592 | 1,041 |
Financing Receivable, Modifications, Subsequent Default [Line Items] |  |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts |  | 1 |  | 1 |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment |  | 426 |  | 426 |
Commercial Real Estate Loans, Total [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 1,446 |  | 1,446 |  | 1,477
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 481 |  | 481 |  | 714
Impaired Financing Receivable, Trouble Debt Structuring, Total | 1,927 |  | 1,927 |  | 2,191
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 202 |  | 202 |  | 172
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Financing Receivable, Modification, Number of Contracts | 1 | 2 | 1 | 3 |
Financing Receivable, Modification, Pre-Modification Recorded Investment | 590 | 1,488 | 590 | 1,919 |
Financing Receivable, Modifications, Post-Modifications Recorded Investment | 592 | 1,492 | 592 | 1,923 |
Financing Receivable, Modifications, Subsequent Default [Line Items] |  |  |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 1 | 1 | 1 | 1 |
Financing Receivable, Modifications, Subsequent Default, Recorded Investment | 272 | 426 | 272 | 426 |
Residential Real Estate Consumer Mortgage Loans [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 723 |  | 723 |  | 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 0 |  | 0 |  | 754
Impaired Financing Receivable, Trouble Debt Structuring, Total | 723 |  | 723 |  | 754
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 |  | 0 |  | 0
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Financing Receivable, Modification, Number of Contracts | 1 | 1 | 1 | 2 |
Financing Receivable, Modification, Pre-Modification Recorded Investment | 712 | 678 | 712 | 808 |
Financing Receivable, Modifications, Post-Modifications Recorded Investment | 712 | 674 | 712 | 804 |
Residential Real Estate Investment Property Loans [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 0 |  | 0 |  | 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 160 |  | 160 |  | 172
Impaired Financing Receivable, Trouble Debt Structuring, Total | 160 |  | 160 |  | 172
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 |  | 0 |  | 0
Residential Real Estate Loans, Total [Member] |  |  |  |  |
Impaired Financing Receivable And Troubled Debt Restructing [Line Items] |  |  |  |  |
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing | 723 |  | 723 |  | 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual | 160 |  | 160 |  | 926
Impaired Financing Receivable, Trouble Debt Structuring, Total | 883 |  | 883 |  | 926
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses | 0 |  | 0 |  | 0
Financing Receivable, Modifications [Line Items] |  |  |  |  |
Financing Receivable, Modification, Number of Contracts | 1 | 1 | 1 | 2 |
Financing Receivable, Modification, Pre-Modification Recorded Investment | 712 | 678 | 712 | 808 |
Financing Receivable, Modifications, Post-Modifications Recorded Investment | $ 712 | $ 674 | $ 712 | $ 804 |

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