Deposits (Summary Of Maturity Distribution Of All Certificates Of Deposit) (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Deposits [Abstract]
Three months or less	$ 49,572
Three through six months	21,611
Six through twelve months	72,494
Over twelve months	299,966
Total	$ 443,643
Three months or less, percentage	11.20%
Three through six months, percentage	4.90%
Six through twelve months, percentage	16.30%
Over twelve months, percentage	67.60%
Total, percentage	100.00%