Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 742	$ 1,284	$ 1,480	$ 2,565
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	341	821	682	1,641
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	6	22	11	44
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	116	147	231	294
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	31	52	62	103
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	79	82	157	164
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	1	2	2
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 168	$ 159	$ 335	$ 317