Fair Value Measurements (Schedule Of OREO Measured And Reported At Fair Value) (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Other Real Estate [Roll Forward]
Beginning balance	$ 6,518	$ 8,179	$ 8,179
Disposed	(3,156)	(3,727)
Ending balance	5,491	6,026	$ 6,518
OREO Remeasured At Initial Recognition [Member]
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	2,528	2,356
Charge-offs recognized in the allowance for loan losses	0	0
Fair value	2,528	2,356
OREO Remeasured Subsequent To Initial Recognition [Member]
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	1,228	3,601
Fair value	829	2,819
Write-downs included in other non-interest expense	$ (399)	$ (782)