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Fair Value Measurements (Quantitative Information About Level 3 Fair Value Measurements For Certain Financial Assets) (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Other Real Estate Owned [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 6.00% 6.00%
Nonrecurring [Member] | Maximum [Member] | Other Real Estate Owned [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 6.00% 6.00%
Nonrecurring [Member] | Minimum [Member] | Other Real Estate Owned [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 6.00% 6.00%
Measurement Input, Cost to Sell [Member] | Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 12.00% 8.00%
Measurement Input, Cost to Sell [Member] | Nonrecurring [Member] | Maximum [Member] | Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 12.00% 12.00%
Measurement Input, Cost to Sell [Member] | Nonrecurring [Member] | Minimum [Member] | Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 12.00% 0.00%
Measurement Input, Discount Rate [Member] | Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 5.00% 5.00%
Measurement Input, Discount Rate [Member] | Nonrecurring [Member] | Maximum [Member] | Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 6.00% 6.00%
Measurement Input, Discount Rate [Member] | Nonrecurring [Member] | Minimum [Member] | Impaired Loans [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)    
Quantitative information about level 3 nonrecurring basis 4.00% 4.00%