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Loans And The Allowance For Credit Losses (Impaired Loans By Class) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Financing Receivable, Impaired [Line Items]        
Recorded investment, Total $ 1,404 $ 791 $ 1,404 $ 791
Unpaid Principal Balance, Total 1,498 904 1,498 904
Related Allowance 139 63 139 63
Average Recorded Investment, Total 1,457 826 1,245 886
Commercial, Financial And Agricultural [Member]        
Financing Receivable, Impaired [Line Items]        
With no related allowance recorded, Recorded investment 566 134 566 134
Recorded investment, Total 566 134 566 134
With no related allowance recorded, Unpaid Principal Balance 572 136 572 136
Unpaid Principal Balance, Total 572 136 572 136
With no related allowance recorded, Average Recorded Investment 571 66 303 65
With related allowance recorded, Average Recorded Investment     166 16
Average Recorded Investment, Total 571 66 469 81
Real Estate Residential [Member]        
Financing Receivable, Impaired [Line Items]        
Recorded investment, Total 838 657 838 657
Unpaid Principal Balance, Total 926 768 926 768
Related Allowance 139 63 139 63
Average Recorded Investment, Total 886 604 773 629
Real Estate Residential [Member] | First Mortgage [Member]        
Financing Receivable, Impaired [Line Items]        
With no related allowance recorded, Recorded investment 457 147 457 147
With related allowance recorded, Recorded investment 381 431 381 431
With no related allowance recorded, Unpaid Principal Balance 543 257 543 257
With related allowance recorded, Unpaid Principal Balance 383 432 383 432
Related Allowance 139 63 139 63
With no related allowance recorded, Average Recorded Investment 293 283 200 284
With related allowance recorded, Average Recorded Investment 541 190 497 189
Real Estate Residential [Member] | Second Mortgage [Member]        
Financing Receivable, Impaired [Line Items]        
With no related allowance recorded, Recorded investment   79   79
With no related allowance recorded, Unpaid Principal Balance   79   79
With no related allowance recorded, Average Recorded Investment $ 52 131 70 156
With related allowance recorded, Average Recorded Investment     6  
Real Estate Commercial [Member]        
Financing Receivable, Impaired [Line Items]        
Average Recorded Investment, Total   156 3 176
Real Estate Commercial [Member] | Owner Occupied [Member]        
Financing Receivable, Impaired [Line Items]        
With no related allowance recorded, Average Recorded Investment       17
With related allowance recorded, Average Recorded Investment   $ 156   $ 159
Real Estate Commercial [Member] | Non-Owner Occupied [Member]        
Financing Receivable, Impaired [Line Items]        
Average Recorded Investment, Total     $ 3