Pension And Other Liabilities (Schedule Of Change In Pension Benefit Obligation And Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Pension And Other Liabilities [Abstract]
Benefit obligation at beginning of period	$ 5,354	$ 8,135
Interest cost	482	180
Payments made	(683)	(2,961)
Benefit obligation at end of period	5,153	5,354
Funded status at end of period	$ (5,153)	$ (5,354)