Fair Value Measurements (Schedule Of OREO Measured And Reported At Fair Value) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Other Real Estate [Roll Forward]
Beginning balance	$ 6,518	$ 8,179	$ 8,179
Disposed	(972)	(510)
Ending balance	6,054	8,771	$ 6,518
OREO Remeasured At Initial Recognition [Member]
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	673	1,159
Charge-offs recognized in the allowance for loan losses	0	0
Fair value	673	1,159
OREO Remeasured Subsequent To Initial Recognition [Member]
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	1,228	211
Fair value	1,063	154
Write-downs included in other non-interest expense	$ (165)	$ (57)