Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 1,312	$ 953	$ 3,937	$ 2,855
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	939	473	2,817	1,418
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	6	10	19	30
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	110	118	329	354
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	47	104	142	311
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	79	79	238	236
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	2	7	6	20
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 129	$ 162	$ 386	$ 486