Significant Accounting Policies (Promotional Allowances) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Promotional Allowances [Line Items]
Outstanding balance of promotional allowance liability	$ 1,000,000
Total Promotional Allowances	8,439,000	8,183,000
Hotel, Bowling, Food and Beverage [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	3,826,000	3,573,000
Free Plays Or Coupons [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	2,110,000	2,049,000
Player Points [Member]
Promotional Allowances [Line Items]
Total Promotional Allowances	$ 2,503,000	$ 2,561,000