Annual report pursuant to Section 13 and 15(d)

SETTLEMENTS, COMMITMENTS AND CONTINGENCIES - Operating Leases (Details)

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SETTLEMENTS, COMMITMENTS AND CONTINGENCIES - Operating Leases (Details)
 1 Months Ended 6 Months Ended 12 Months Ended 24 Months Ended
Jan. 01, 2018
USD ($)
Jul. 01, 2017
USD ($)
Jun. 01, 2016
USD ($)
Aug. 31, 2016
USD ($)
square_feet
Jun. 30, 2016
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2017
USD ($)
a
option
Dec. 31, 2016
USD ($)
Dec. 31, 2004
USD ($)
a
Dec. 31, 2018
USD ($)
Jun. 30, 2017
USD ($)
Operating Leased Assets [Line Items]                      
Rent expenses of operating lease             $ 4,100,000 $ 3,700,000      
Land lease of Silver Slipper Casino site | Land Lease Agreement                      
Operating Leased Assets [Line Items]                      
Monthly rent                 $ 77,500    
Percent of gross gaming revenue                 3.00%    
Gross gaming revenue, more than                 $ 3,650,000    
Rent expenses of operating lease             1,400,000 1,300,000      
Contingent rental expense             500,000 300,000      
Option to purchase leased land             $ 15,500,000        
Retained interest in percentages of net income             3.00%        
Purchase option, retained interest in percent of net income, term             10 years        
New purchase price if change in ownership of Silver Slipper             $ 17,100,000        
Value of land purchase option             $ 2,000,000        
Land lease of Silver Slipper Casino site | Land Lease Agreement | Protected Marshland                      
Operating Leased Assets [Line Items]                      
Area of land | a                 31    
Land lease of Silver Slipper Casino site | Land Lease Agreement | Casino parcel                      
Operating Leased Assets [Line Items]                      
Area of land | a                 7    
Land subject to purchase option | a             4        
Bronco Billy's Casino and Hotel                      
Operating Leased Assets [Line Items]                      
Right to purchase lot under lease             $ 1,200,000        
Bronco Billy's Casino and Hotel | Certain Parking Lots and Buildings                      
Operating Leased Assets [Line Items]                      
Option to purchase leased land             $ 7,600,000        
Number of renewal options | option             6        
Lease extension term             3 years        
Grand Lodge Casino Facility                      
Operating Leased Assets [Line Items]                      
Rent expenses of operating lease             $ 1,900,000 $ 1,900,000      
EBITDA measurement period             12 months        
Rent   $ 145,833 $ 41,667   $ 125,000            
Capital expenditure requirement, gaming devices and equipment             $ 1,500,000        
Termination clause period     6 months                
Corporate Office                      
Operating Leased Assets [Line Items]                      
Rent       $ 200,000              
Area of office space (in square feet) | square_feet       4,479              
Lease term (in years)       7 years 7 months              
Scenario, Forecast | Bronco Billy's Casino and Hotel | Certain Parking Lots and Buildings                      
Operating Leased Assets [Line Items]                      
Rent           $ 30,000       $ 25,000  
Scenario, Forecast | Grand Lodge Casino Facility                      
Operating Leased Assets [Line Items]                      
Rent $ 166,667                    
Hyatt Equities, L.L.C. | Grand Lodge Casino Facility                      
Operating Leased Assets [Line Items]                      
Capital expenditure requirement, landlord improvements                     $ 3,500,000