Loans And Allowance For Credit Losses (Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 875	$ 2,618
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	222	665
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	2
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	363	1,088
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	31	92
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	76	227
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	2
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 181	$ 542