Loans And Related Allowances For Loan Losses (Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment $ 10,921 $ 8,481
Impaired Loans with Specific Allowance: Related Allowance 2,781 1,632
Impaired Loans with No Specific Allowance: Recorded Investment 37,578 39,361
Total Impaired Loans: Recorded Investment 48,499 47,842
Unpaid Principal Balance 56,352 55,128
Commercial real estate- non owner-occupied [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 135 0
Impaired Loans with Specific Allowance: Related Allowance 27 0
Impaired Loans with No Specific Allowance: Recorded Investment 5,103 5,309
Total Impaired Loans: Recorded Investment 5,238 5,309
Unpaid Principal Balance 7,868 7,929
Commercial real estate- all other CRE [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 985 1,019
Impaired Loans with Specific Allowance: Related Allowance 182 126
Impaired Loans with No Specific Allowance: Recorded Investment 9,767 9,613
Total Impaired Loans: Recorded Investment 10,752 10,632
Unpaid Principal Balance 10,905 10,785
Acquisition and development- 1-4 family residential construction [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 3,584 2,052
Impaired Loans with Specific Allowance: Related Allowance 625 471
Impaired Loans with No Specific Allowance: Recorded Investment 9 10
Total Impaired Loans: Recorded Investment 3,593 2,062
Unpaid Principal Balance 3,681 2,062
Acquisition and development- All other A&D [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 5,383 5,410
Impaired Loans with Specific Allowance: Related Allowance 1,741 1,035
Impaired Loans with No Specific Allowance: Recorded Investment 15,266 16,640
Total Impaired Loans: Recorded Investment 20,649 22,050
Unpaid Principal Balance 24,898 26,232
Commercial and industrial [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 128 0
Impaired Loans with Specific Allowance: Related Allowance 128 0
Impaired Loans with No Specific Allowance: Recorded Investment 3,287 3,449
Total Impaired Loans: Recorded Investment 3,415 3,449
Unpaid Principal Balance 3,432 3,449
Residential mortgage- term [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 706 0
Impaired Loans with Specific Allowance: Related Allowance 78 0
Impaired Loans with No Specific Allowance: Recorded Investment 3,433 3,755
Total Impaired Loans: Recorded Investment 4,139 3,755
Unpaid Principal Balance 4,855 4,086
Residential mortgage- home equity [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 0
Impaired Loans with Specific Allowance: Related Allowance 0 0
Impaired Loans with No Specific Allowance: Recorded Investment 597 549
Total Impaired Loans: Recorded Investment 597 549
Unpaid Principal Balance 597 549
Consumer [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 0
Impaired Loans with Specific Allowance: Related Allowance 0 0
Impaired Loans with No Specific Allowance: Recorded Investment 116 36
Total Impaired Loans: Recorded Investment 116 36
Unpaid Principal Balance $ 116 $ 36