Premises And Equipment (Schedule Of Depreciation And Rent Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Premises And Equipment [Abstract]
Depreciation expense	$ 1,236	$ 1,270	$ 1,269
Rent expense on leases	$ 704	$ 713	$ 735