Promotional Allowances (Schedule Of Promotional Allowances) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Promotional Allowances [Line Items]
Total promotional allowances	$ 308	$ 284	$ 590	$ 563
Outstanding Balance Of Promotional Allowance Liability	700		700		$ 700
Hotel [Member]
Promotional Allowances [Line Items]
Total promotional allowances	12	13	26	25
Food And Beverage [Member]
Promotional Allowances [Line Items]
Total promotional allowances	$ 296	$ 271	$ 564	$ 538