Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 675	$ 589	$ 1,345	$ 1,175
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	319	236	637	472
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	1	3	2	5
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	88	56	175	112
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	36	42	71	84
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	80	89	159	177
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	6	4	12	7
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 145	$ 159	$ 289	$ 318