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Loans And Related Allowances For Loan Losses (Average of Impaired Loans and Related Interest Income by Loan Portfolio Class) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Financing Receivable, Impaired [Line Items] |  |
Average Investment | $ 24,214 | $ 29,319
Interest income recognized on an accrual basis | 653 | 725
Interest income recognized on a cash basis | 136 | 135
Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 3,792 | 2,411
Interest income recognized on an accrual basis | 144 | 71
Interest income recognized on a cash basis | 0 | 0
Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 8,688 | 9,088
Interest income recognized on an accrual basis | 124 | 148
Interest income recognized on a cash basis | 106 | 67
Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 736 | 1,510
Interest income recognized on an accrual basis | 33 | 43
Interest income recognized on a cash basis | 0 | 0
Other Acquired and Development Financing Receivable [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 5,008 | 7,639
Interest income recognized on an accrual basis | 119 | 161
Interest income recognized on a cash basis | 0 | 0
Commercial and industrial [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 1,392 | 2,024
Interest income recognized on an accrual basis | 69 | 98
Interest income recognized on a cash basis | 18 | 2
Residential mortgage- term [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 4,258 | 6,056
Interest income recognized on an accrual basis | 164 | 200
Interest income recognized on a cash basis | 10 | 62
Residential mortgage- home equity [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 334 | 581
Interest income recognized on an accrual basis | 0 | 4
Interest income recognized on a cash basis | 2 | 4
Consumer [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Average Investment | 6 | 10
Interest income recognized on an accrual basis | 0 | 0
Interest income recognized on a cash basis | $ 0 | $ 0

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