Fair Value Measurements (Schedule Of OREO Measured And Reported At Fair Value) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Other Real Estate [Roll Forward]
Beginning balance	$ 4,608	$ 3,585	$ 3,585
Disposed	(1,514)	(325)
Ending balance	3,186	3,912	$ 4,608
OREO remeasured at initial recognition:
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	706	1,218
Charge-offs recognized in the allowance for loan losses	(401)	(353)
OREO remeasured subsequent to initial recognition:
Other Real Estate [Roll Forward]
Carrying value of foreclosed assets prior to remeasurement	1,300	1,362
Write-downs included in other non-interest expense	(213)	(213)
Fair Value, Measurements, Nonrecurring | OREO remeasured at initial recognition:
Other Real Estate [Roll Forward]
Assets, Fair Value Disclosure	305	865
Fair Value, Measurements, Nonrecurring | OREO remeasured subsequent to initial recognition:
Other Real Estate [Roll Forward]
Assets, Fair Value Disclosure	$ 1,087	$ 1,149