Related Party Transactions (Schedule Of Aggregate Activity Involving Related party Borrowers) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction, Due from (to) Related Party [Roll Forward]
Loans outstanding at the beginning of the year	$ 9,836	$ 10,302	$ 19,718
New loans and advances	3,982	2,006	7,165
Less loan repayments	(3,516)	(2,472)	(16,506)
Reclassification	(1,319)	0	(75)
Loans outstanding at the end of the year	$ 8,983	$ 9,836	$ 10,302