Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 875	$ 1,312	$ 2,618	$ 3,937
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	222	939	665	2,817
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	6	2	19
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	363	110	1,088	329
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	31	47	92	142
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	76	79	227	238
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	2	2	6
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 181	$ 129	$ 542	$ 386