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Loans And Related Allowances For Loan Losses (Allowance for Loan Losses Summarized by Loan Portfolio Segments) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance $ 9,918 $ 11,922
Charge-offs (5,472) (7,177)
Recoveries 2,992 2,051
Provision for loan losses 2,534 3,122
ALL Ending Balance 9,972 9,918
Commercial Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance 3,913 2,580
Charge-offs (4,605) (5,301)
Recoveries 452 90
Provision for loan losses 3,939 6,544
ALL Ending Balance 3,699 3,913
Acquisition and Development [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance 871 4,129
Charge-offs (133) (248)
Recoveries 255 1,303
Provision for loan losses 264 (4,313)
ALL Ending Balance 1,257 871
Commercial and industrial [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance 858 722
Charge-offs (37) (558)
Recoveries 1,683 52
Provision for loan losses (1,635) 642
ALL Ending Balance 869 858
Residential Mortgage [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance 3,588 3,785
Charge-offs (361) (737)
Recoveries 392 461
Provision for loan losses (175) 79
ALL Ending Balance 3,444 3,588
Consumer [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance 188 206
Charge-offs (336) (333)
Recoveries 210 145
Provision for loan losses 141 170
ALL Ending Balance 203 188
Unallocated [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
ALL Beginning Balance 500 500
Charge-offs 0 0
Recoveries 0 0
Provision for loan losses 0 0
ALL Ending Balance $ 500 $ 500