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Loans, Allowance For Loan Losses And OREO (Allowance For Loan Losses And Recorded Investment In Loans) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]          
Allowance for Credit Losses: Beginning Balance     $ 4,752 $ 5,716 $ 5,716
Allowance for Credit Losses: Charge-offs     (879)   (2,094)
Allowance for Credit Losses: Recoveries     161   137
Allowance for credit losses: Provision $ 190 $ 200 527 745 993
Allowance for Credit Losses: Ending Balance 4,561   4,561   4,752
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment 345   345   563
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment 4,216   4,216   4,189
Allowance for Credit Losses: Totals 4,561   4,561   4,752
Financing Receivables: Ending Balance: Individually evaluated for impairment 5,872   5,872   7,690
Financing Receivables: Ending Balance: Collectively evaluated for impairment 522,793   522,793   488,084
Total loans [1] 528,665   528,665   495,774
Commercial [Member]          
Financing Receivable, Allowance for Credit Losses [Line Items]          
Allowance for Credit Losses: Beginning Balance     1,264 2,192 2,192
Allowance for Credit Losses: Charge-offs     (320)   (1,652)
Allowance for Credit Losses: Recoveries     102   6
Allowance for credit losses: Provision     292   718
Allowance for Credit Losses: Ending Balance 1,338   1,338   1,264
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment 133   133   112
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment 1,205   1,205   1,152
Allowance for Credit Losses: Totals 1,338   1,338   1,264
Financing Receivables: Ending Balance: Individually evaluated for impairment 1,027   1,027   1,242
Financing Receivables: Ending Balance: Collectively evaluated for impairment 93,493   93,493   94,885
Total loans 94,520   94,520   96,127
Commercial Real Estate [Member]          
Financing Receivable, Allowance for Credit Losses [Line Items]          
Allowance for Credit Losses: Beginning Balance     1,738 2,109 2,109
Allowance for Credit Losses: Charge-offs     (144)   (91)
Allowance for Credit Losses: Recoveries     4   41
Allowance for credit losses: Provision     81   (321)
Allowance for Credit Losses: Ending Balance 1,679   1,679   1,738
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment 67   67   190
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment 1,612   1,612   1,548
Allowance for Credit Losses: Totals 1,679   1,679   1,738
Financing Receivables: Ending Balance: Individually evaluated for impairment 2,542   2,542   4,009
Financing Receivables: Ending Balance: Collectively evaluated for impairment 281,173   281,173   247,798
Total loans 283,715   283,715   251,807
Consumer [Member]          
Financing Receivable, Allowance for Credit Losses [Line Items]          
Allowance for Credit Losses: Beginning Balance     1,172 954 954
Allowance for Credit Losses: Charge-offs     (403)   (246)
Allowance for Credit Losses: Recoveries     55   51
Allowance for credit losses: Provision     93   413
Allowance for Credit Losses: Ending Balance 917   917   1,172
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment 107   107   257
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment 810   810   915
Allowance for Credit Losses: Totals 917   917   1,172
Financing Receivables: Ending Balance: Individually evaluated for impairment 292   292   708
Financing Receivables: Ending Balance: Collectively evaluated for impairment 84,400   84,400   83,038
Total loans 84,692   84,692   83,746
Residential Real Estate [Member]          
Financing Receivable, Allowance for Credit Losses [Line Items]          
Allowance for Credit Losses: Beginning Balance     578 $ 461 461
Allowance for Credit Losses: Charge-offs     (12)   (105)
Allowance for Credit Losses: Recoveries         39
Allowance for credit losses: Provision     61   183
Allowance for Credit Losses: Ending Balance 627   627   578
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment 38   38   4
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment 589   589   574
Allowance for Credit Losses: Totals 627   627   578
Financing Receivables: Ending Balance: Individually evaluated for impairment 2,011   2,011   1,731
Financing Receivables: Ending Balance: Collectively evaluated for impairment 63,727   63,727   62,363
Total loans $ 65,738   $ 65,738   $ 64,094
[1] Includes net deferred costs and premiums of $583 and $940 as of September 30, 2018 and December 31, 2017, respectively.