Other Comprehensive Income (Schedule Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (821)	$ (1,743)	$ (1,810)	$ (1,508)
Net Change	(336)	448	653	213
Ending Balance	(1,157)	(1,295)	(1,157)	(1,295)
Net Unrealized Gain (Loss) On Investment Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	1,384	605	475	911
Net Change	(376)	412	533	106
Ending Balance	1,008	1,017	1,008	1,017
Net Defined Benefit Pension Plan Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,205)	(2,348)	(2,285)	(2,419)
Net Change	40	36	120	107
Ending Balance	$ (2,165)	$ (2,312)	$ (2,165)	$ (2,312)