Promotional Allowances (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Promotional Allowances [Line Items]
Total Promotional Allowances	$ 2,285,000	$ 2,198,000	$ 6,395,000	$ 6,157,000
Outstanding Balance Of Promotional Allowance Liability	1,000,000		1,000,000
Hotel, Bowling, Food and Beverage [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	1,020,000	960,000	2,918,000	2,701,000
Coupons [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	602,000	566,000	1,543,000	1,513,000
Player Points [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	$ 663,000	$ 672,000	$ 1,934,000	$ 1,943,000