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Subsequent Events (Narrative) (Details) - Subsequent Event [Member]
$ in Millions, $ in Millions
Apr. 25, 2018
USD ($)
item
May 04, 2018
CAD ($)
May 04, 2018
USD ($)
Shareholders Agreement with Golden Hospitality Ltd. [Member]      
Subsequent Event [Line Items]      
Percentage of outstanding shares 51.00%    
Total consideration | $ $ 0.6    
The Charter Agreement [Member]      
Subsequent Event [Line Items]      
Percentage of outstanding shares 6.36%    
Additional options to purchase outstanding shares 51.00%    
Total consideration | $ $ 0.4    
Period in which additional options can be purchased 3 years    
BMO Credit Agreement [Member]      
Subsequent Event [Line Items]      
Maximum borrowing capacity   $ 35.0 $ 27.1
Minh Chau [Member]      
Subsequent Event [Line Items]      
Number of low-standard rooms 30    
Number of electronic table games 7    
Minh Chau [Member] | Investment Certificate [Member]      
Subsequent Event [Line Items]      
Number of electronic table games 26