Promotional Allowances (Schedule Of Promotional Allowances) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Promotional Allowances [Line Items]
Total promotional allowances	$ 325	$ 329	$ 915	$ 893
Outstanding Balance Of Promotional Allowance Liability	700		700		$ 700
Hotel [Member]
Promotional Allowances [Line Items]
Total promotional allowances	10	11	36	36
Food And Beverage [Member]
Promotional Allowances [Line Items]
Total promotional allowances	$ 315	$ 318	$ 879	$ 857