Loans And Related Allowances For Loan Losses (Modification of Troubled Debt Restructuring By Class) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
loan
Mar. 31, 2012
loan
Temporary Rate Modification [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Contracts 1 1
Recorded Investment $ 172 $ 513
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 1 1
Recorded Investment 172 513
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 4 0
Recorded Investment 520 0
Extension Of Maturity [Member] | Commercial real estate- non owner-occupied [Member]
   
Financing Receivable, Modifications [Line Items]    
Number of Contracts 2 0
Recorded Investment 268 0
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 0
Recorded Investment 252 0
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