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Allowance For Loan Losses (Allowance For Loan Losses By Segment) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Financing Receivable, Impaired [Line Items]      
Balance, beginning $ 8,743 $ 7,111 $ 5,970
Charge-Offs (4,163) (2,966) (5,475)
Recoveries 337 848 291
Provision 1,660 3,750 6,325
Balance, ending 6,577 8,743 7,111
Ending balance: Individually evaluated for impairment 2,359 4,233  
Ending balance: collectively evaluated for impairment 4,218 4,510  
Financing Receivables Ending Balance 418,097 410,424  
Ending balance individually evaluated for impairment 15,252 19,890  
Ending balance collectively evaluated for impairment 402,845 390,534  
Construction And Farmland [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 2,618 1,386  
Charge-Offs (1,313) (721)  
Recoveries 4 5  
Provision (29) 1,948  
Balance, ending 1,280 2,618  
Ending balance: Individually evaluated for impairment 141 1,468  
Ending balance: collectively evaluated for impairment 1,139 1,150  
Financing Receivables Ending Balance 37,876 34,969  
Ending balance individually evaluated for impairment 1,326 3,357  
Ending balance collectively evaluated for impairment 36,550 31,612  
Residential Real Estate [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 3,544 3,457  
Charge-Offs (1,381) (1,203)  
Recoveries 67 298  
Provision 590 992  
Balance, ending 2,820 3,544  
Ending balance: Individually evaluated for impairment 1,176 2,071  
Ending balance: collectively evaluated for impairment 1,644 1,473  
Financing Receivables Ending Balance 217,427 217,155  
Ending balance individually evaluated for impairment 7,695 9,748  
Ending balance collectively evaluated for impairment 209,732 207,407  
Commercial Real Estate [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 1,057 1,231  
Charge-Offs (1,118) (14)  
Recoveries 146 2  
Provision 1,097 (162)  
Balance, ending 1,182 1,057  
Ending balance: Individually evaluated for impairment 305 150  
Ending balance: collectively evaluated for impairment 877 907  
Financing Receivables Ending Balance 124,382 118,043  
Ending balance individually evaluated for impairment 5,246 6,186  
Ending balance collectively evaluated for impairment 119,136 111,857  
Commercial [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 1,077 819  
Charge-Offs (207) (572)  
Recoveries 36 292  
Provision (26) 538  
Balance, ending 880 1,077  
Ending balance: Individually evaluated for impairment 737 544  
Ending balance: collectively evaluated for impairment 143 533  
Financing Receivables Ending Balance 21,640 22,866  
Ending balance individually evaluated for impairment 985 599  
Ending balance collectively evaluated for impairment 20,655 22,267  
Consumer [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 131 182  
Charge-Offs (116) (331)  
Recoveries 73 195  
Provision 19 85  
Balance, ending 107 131  
Ending balance: collectively evaluated for impairment 107 131  
Financing Receivables Ending Balance 13,307 13,185  
Ending balance collectively evaluated for impairment 13,307 13,185  
All Other Loans [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 123 36  
Charge-Offs (28) (125)  
Recoveries 11 56  
Provision 16 156  
Balance, ending 122 123  
Ending balance: collectively evaluated for impairment 122 123  
Financing Receivables Ending Balance 3,465 4,206  
Ending balance collectively evaluated for impairment 3,465 4,206  
Unallocated [Member]
     
Financing Receivable, Impaired [Line Items]      
Balance, beginning 193     
Charge-Offs       
Recoveries       
Provision (7) 193  
Balance, ending 186 193  
Ending balance: Individually evaluated for impairment       
Ending balance: collectively evaluated for impairment 186 193  
Financing Receivables Ending Balance       
Ending balance individually evaluated for impairment       
Ending balance collectively evaluated for impairment