Pension And Other Liabilities (Schedule Of Change In Pension Benefit Obligation And Funded Status) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Pension And Other Liabilities [Abstract]
Benefit obligation at beginning of period	$ 4,289,000	$ 4,732,000
Service cost	0	0
Interest cost	216,000	240,000
Payments made	(683,000)	(683,000)
Benefit obligation at end of period	3,822,000	4,289,000
Unfunded status at end of period	$ (3,822,000)	$ (4,289,000)