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Loans And Related Allowances For Loan Losses (Modification of Troubled Debt Restructuring by Class) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) contract | Dec. 31, 2015 USD ($) contract
Temporary Rate Modification [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 3 | 1
Recorded Investment | $ | $ 260 | $ 156
Temporary Rate Modification [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Acquisition and development- All other A&D [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Commercial and industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 3 | 1
Recorded Investment | $ | $ 260 | $ 156
Temporary Rate Modification [Member] | Residential mortgage- home equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Extension Of Maturity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 5 | 9
Recorded Investment | $ | $ 2,992 | $ 5,377
Extension Of Maturity [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 1
Recorded Investment | $ | $ 0 | $ 3,097
Extension Of Maturity [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 1
Recorded Investment | $ | $ 203 | $ 237
Extension Of Maturity [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 0
Recorded Investment | $ | $ 582 | $ 0
Extension Of Maturity [Member] | Acquisition and development- All other A&D [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 3
Recorded Investment | $ | $ 1,664 | $ 372
Extension Of Maturity [Member] | Commercial and industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 1
Recorded Investment | $ | $ 482 | $ 930
Extension Of Maturity [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 3
Recorded Investment | $ | $ 61 | $ 741
Extension Of Maturity [Member] | Residential mortgage- home equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Extension Of Maturity [Member] | Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Modification Of Payment And Other Terms [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 4 | 10
Recorded Investment | $ | $ 955 | $ 6,669
Modification Of Payment And Other Terms [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 2
Recorded Investment | $ | $ 0 | $ 260
Modification Of Payment And Other Terms [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 5
Recorded Investment | $ | $ 0 | $ 3,847
Modification Of Payment And Other Terms [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 1
Recorded Investment | $ | $ 0 | $ 700
Modification Of Payment And Other Terms [Member] | Acquisition and development- All other A&D [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 1
Recorded Investment | $ | $ 0 | $ 1,746
Modification Of Payment And Other Terms [Member] | Commercial and industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 0
Recorded Investment | $ | $ 486 | $ 0
Modification Of Payment And Other Terms [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 3 | 1
Recorded Investment | $ | $ 469 | $ 116
Modification Of Payment And Other Terms [Member] | Residential mortgage- home equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Modification Of Payment And Other Terms [Member] | Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 0 | 0
Recorded Investment | $ | $ 0 | $ 0

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