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Allowance For Credit Losses (Narrative) (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
USD ($)
Mar. 31, 2016
loan
Jun. 30, 2015
USD ($)
Mar. 31, 2015
loan
Jun. 30, 2016
USD ($)
loan
Jun. 30, 2015
USD ($)
loan
Dec. 31, 2015
USD ($)
loan
Financing Receivable, Modifications [Line Items]              
Interest income that would have been recorded under original terms, non-accrual loans $ 124,000   $ 143,000   $ 220,000 $ 278,000  
Partial charge-off of loan amount 133,000   501,000   $ 230,000 $ 518,000  
Commercial Mortgage [Member]              
Financing Receivable, Modifications [Line Items]              
Number of TDR loans | loan         0 1 0
TDR amount     2,222,000     $ 2,222,000  
Pre-modification recorded investment         $ 2,272,000    
Post-modification recorded investment         2,272,000    
Number of subsequent defaults | loan           0  
Reduction of principal         $ 0    
Consumer: Home Equity [Member]              
Financing Receivable, Modifications [Line Items]              
Number of TDR loans | loan         1 1 1
TDR amount 102,000   102,000   $ 102,000 $ 102,000 $ 102,000
Pre-modification recorded investment         102,000    
Post-modification recorded investment         $ 102,000    
Number of subsequent defaults | loan   0   0      
Monthly payment reduced period, in months         36 months    
Reduction of principal         $ 0    
Consumer Installment Loan [Member]              
Financing Receivable, Modifications [Line Items]              
Number of TDR loans | loan         1   1
TDR amount $ 40,000   $ 0   $ 40,000 $ 0 $ 40,000
Pre-modification recorded investment         42,000    
Post-modification recorded investment         42,000    
Partial charge-off of loan amount         $ 2,000    
Number of subsequent defaults | loan         0 0  
Reduction of principal         $ 0