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Loans And The Allowance For Loan Losses (Schedule Of Loan Portfolio Composition) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs $ 1,064,128 $ 941,729
Net deferred loan origination costs 1,187 783
Total gross loans 1,065,315 942,512
Allowance for loan losses (14,019) (13,916)
Loans, net 1,051,296 928,596
Commercial And Industrial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 232,211 197,371
Consumer And Other Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 1,654 1,417
Total Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 830,263 742,941
Total Real Estate Loans [Member] | Residential Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs [1] 133,342 121,082
Total Real Estate Loans [Member] | Residential Mortgages [Member] | Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 131,208 118,542
Total Real Estate Loans [Member] | Residential Mortgages [Member] | Construction [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 2,134 2,540
Total Real Estate Loans [Member] | Commercial Real Estate Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs [1] 627,176 555,625
Total Real Estate Loans [Member] | Commercial Real Estate Mortgages [Member] | Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 519,902 462,385
Total Real Estate Loans [Member] | Commercial Real Estate Mortgages [Member] | Construction [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs 107,274 93,240
Total Real Estate Loans [Member] | Home Equities [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans before deferred loan origination costs $ 69,745 $ 66,234
[1] includes construction loans