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Promotional Allowances (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Promotional Allowances [Line Items]    
Total Promotional Allowances $ 1,904,000 $ 1,954,000
Outstanding balance of promotional balance liability 1,000,000  
Hotel, Bowling, Food and Beverage [Member]
   
Promotional Allowances [Line Items]    
Total Promotional Allowances 888,000 914,000
Coupons [Member]
   
Promotional Allowances [Line Items]    
Total Promotional Allowances 517,000 454,000
Player Points [Member]
   
Promotional Allowances [Line Items]    
Total Promotional Allowances $ 499,000 $ 586,000