Significant Accounting Policies (Schedule Of Promotional Allowances) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Promotional Allowances [Line Items]
Promotional allowances, estimated cost	$ 2,413	$ 2,082	$ 2,023
Hotel Project [Member]
Promotional Allowances [Line Items]
Promotional allowances, estimated cost	348	293	248
Food And Beverage [Member]
Promotional Allowances [Line Items]
Promotional allowances, estimated cost	$ 2,065	$ 1,789	$ 1,775