Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 1,284	$ 675	$ 2,565	$ 1,345
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	821	319	1,641	637
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	22	1	44	2
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	147	88	294	175
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	52	36	103	71
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	82	80	164	159
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	6	2	12
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 159	$ 145	$ 317	$ 289