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Promotional Allowances (Schedule Of Promotional Allowances) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Promotional Allowances [Line Items]          
Total promotional allowances $ 320 $ 288 $ 842 $ 820  
Outstanding Balance Of Promotional Allowance Liability 700   700   $ 700
Hotel [Member]          
Promotional Allowances [Line Items]          
Total promotional allowances 9 11 37 46  
Food And Beverage [Member]          
Promotional Allowances [Line Items]          
Total promotional allowances $ 311 $ 277 $ 805 $ 774