Promotional Allowances (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Promotional Allowances [Line Items]
Total Promotional Allowances	$ 2,156,000	$ 2,071,000	$ 4,110,000	$ 3,959,000
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	984,000	909,000	1,898,000	1,741,000
Coupons [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	487,000	502,000	941,000	947,000
Player Points [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	$ 685,000	$ 660,000	$ 1,271,000	$ 1,271,000