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Fair Value Measurements (Additional Quantitative Information About Assets Measured At Fair Value On A Recurring And Non-Recurring Basis) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2018
USD ($)
Collateral Dependent Impaired Loans [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets at fair value $ 5,049
Collateral Dependent Impaired Loans [Member] | Minimum [Member] | Appraisal Adjustments [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Input Value or Range 25.00%
Collateral Dependent Impaired Loans [Member] | Maximum [Member] | Appraisal Adjustments [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Input Value or Range 50.00%
Loan Servicing Rights [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets at fair value $ 968
Loan Servicing Rights [Member] | Discount Rate [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Input Value or Range 10.30%
Loan Servicing Rights [Member] | Constant Prepayment Rate [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Input Value or Range 13.10%
Other Real Estate Owned [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets at fair value $ 299
Other Real Estate Owned [Member] | Minimum [Member] | Appraisal Adjustments [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Input Value or Range 22.00%
Other Real Estate Owned [Member] | Maximum [Member] | Appraisal Adjustments [Member]  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Input Value or Range 43.00%