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Note 4. Investment in Evitts Resort, LLC and Acquisition of Rocky Gap Lodge & Golf Resort (Detail) (USD $)
 5 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 5 Months Ended 12 Months Ended
Dec. 30, 2012
Jul. 31, 2015
Jul. 31, 2014
Dec. 30, 2012
Jan. 01, 2012
Aug. 03, 2012
Dec. 30, 2012
Scenario, Plan [Member]
Rocky Gap Resort [Member]
Jul. 31, 2013
Maximum [Member]
Rocky Gap Resort [Member]
May 31, 2012
Rocky Gap Resort [Member]
Dec. 30, 2012
Rocky Gap Resort [Member]
Jul. 31, 2014
Rocky Gap Resort [Member]
Dec. 30, 2012
Rocky Gap Resort [Member]
Aug. 03, 2012
Rocky Gap Resort [Member]
Payments to Acquire Additional Interest in Subsidiaries                 $ 600,000        
Business Acquisition, Cost of Acquired Entity, Cash Paid           6,800,000             6,800,000
Construction and Development Costs             35,000,000            
Line of Credit Facility, Maximum Borrowing Capacity 17,500,000     17,500,000                  
Required Investment In Project 17,500,000     17,500,000                  
Revenues       10,952,000 35,573,000         3,200,000      
Net Income (Loss) Attributable to Parent (800,000)     3,221,000 (1,845,000)                
Assets 119,722,000     119,722,000 116,000,000         12,000,000   12,000,000  
Deposits Assets, Current         2,250,000                
Asset Impairment Charges         3,700,000             1,200,000  
Amortization of Acquired Intangible Assets                   200,000      
Minimum Annual Surcharge Revenue Payment               150,000          
Payments for Rent     $ 275,000               $ 425,000    
Additional Rent Payment Percentage   0.90%