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Allowance For Credit Losses (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Modifications [Line Items]    
Interest income that would have been recorded under original terms, non-accrual loans $ 402 $ 589
Residential Mortgage [Member]    
Financing Receivable, Modifications [Line Items]    
Real estate loans in process of foreclosure 638  
Other real estate owned 97 149
Commercial Mortgage [Member]    
Financing Receivable, Modifications [Line Items]    
Real estate loans in process of foreclosure $ 58 $ 416