Loans And Related Allowances For Loan Losses (Modification of Troubled Debt Restructuring By Class) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013 loan	Jun. 30, 2013 loan
Temporary Rate Modification [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	1
Recorded Investment	$ 0	$ 172
Temporary Rate Modification [Member] \| Commercial real estate- non owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	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	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	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	0	0
Recorded Investment	0	0
Temporary Rate Modification [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Temporary Rate Modification [Member] \| Residential mortgage- term [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	1
Recorded Investment	0	172
Temporary Rate Modification [Member] \| Residential mortgage- home equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Temporary Rate Modification [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Extension Of Maturity [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	2	6
Recorded Investment	315	835
Extension Of Maturity [Member] \| Commercial real estate- non owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	2
Recorded Investment	0	268
Extension Of Maturity [Member] \| Commercial real estate- all other CRE [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Extension Of Maturity [Member] \| Acquisition and development- 1-4 family residential construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Extension Of Maturity [Member] \| Acquisition and development- All other A&D [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	2	4
Recorded Investment	315	567
Extension Of Maturity [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Extension Of Maturity [Member] \| Residential mortgage- term [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Extension Of Maturity [Member] \| Residential mortgage- home equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Extension Of Maturity [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Commercial real estate- non owner-occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Commercial real estate- all other CRE [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Acquisition and development- 1-4 family residential construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Acquisition and development- All other A&D [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Residential mortgage- term [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Residential mortgage- home equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	0	0
Modification Of Payment And Other Terms [Member] \| Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	0	0
Recorded Investment	$ 0	$ 0