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Fair Value Measurements (Impaired Loans And Other Real Estate Owned Measured At Fair Value On A Nonrecurring Basis) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Impaired loans [1] $ 2,523 $ 2,830
Loans held for sale 2,626 3,833
Other real estate owned 2,650 2,370
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Impaired loans [1]
Loans held for sale
Other real estate owned
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Impaired loans [1]
Loans held for sale 2,626 3,833
Other real estate owned
Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Impaired loans [1] 2,523 2,830
Loans held for sale
Other real estate owned $ 2,650 $ 2,370
[1] Includes loans charged down to the net realizable value of the collateral.