Summary Of Significant Accounting Policies (Details) (USD $)	3 Months Ended		4 Months Ended
	Mar. 31, 2013 item mi	Mar. 31, 2012	May 03, 2012 item
Summary Of Significant Accounting Policies [Line Items]
Racetrack distance from Minneapolis (in miles)	25
Casino open, number of hours daily	24 hours
Casino open, number of days weekly	7 days
Minnesota State law, maximum number of game tables	80		50
Number of largest sources of revenues	3
Amount insured by Federal Deposit Insurance Corporation	$ 250,000
Due to Minnesota Horsemen's Benevolent and Protective Association, Inc.	1,200,000	875,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum cost capitalization	$ 1,000
Minimum [Member] | Furniture, Fixtures And Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Minimum [Member] | Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	15 years
Maximum [Member] | Furniture, Fixtures And Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	7 years
Maximum [Member] | Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	39 years