Deposits (Summary Of Maturity Distribution Of All Certificates Of Deposit) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits [Abstract]
Three months or less	$ 57,719
Three through six months	48,885
Six through twelve months	54,161
Over twelve months	255,503
Total	$ 416,268	$ 413,054
Three months or less, percentage	13.90%
Three through six months, percentage	11.70%
Six through twelve months, percentage	13.00%
Over twelve months, percentage	61.40%
Total, percentage	100.00%