Fair Value Measurements (Schedule Of OREO Measured And Reported At Fair Value) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Other Real Estate [Roll Forward]
Beginning balance	$ 4,588	$ 6,518	$ 6,518
Disposed	(776)	(972)
Ending balance	4,405	6,054	$ 4,588
OREO Remeasured At Initial Recognition [Member]
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	1,226	673
Charge-offs recognized in the allowance for loan losses	(442)	0
Fair value	784	673
OREO Remeasured Subsequent To Initial Recognition [Member]
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	1,464	1,228
Fair value	1,273	1,063
Write-downs included in other non-interest expense	$ (191)	$ (165)