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Acquisitions And Investments (Narrative) (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Oct. 31, 2014
USD ($)
Dec. 31, 2014
USD ($)
Oct. 31, 2014
USD ($)
Dec. 31, 2014
USD ($)
Jun. 30, 2015
USD ($)
employee
Business Acquisition [Line Items]          
Cost investment   $ 1,000,000   $ 1,000,000 $ 1,000,000
Century Bets! Inc. [Member]          
Business Acquisition [Line Items]          
Acquisition costs       $ 100,000  
Century Casinos Europe GmbH [Member] | Mendoza Central Entretenimientos S. A. [Member]          
Business Acquisition [Line Items]          
Ownership interest 7.50%   7.50%   7.50%
Acquisition costs   $ 200,000      
Period of option to purchase additional equity interest         $ 3
Additional interest to purchase under option, percentage         50.00%
Investment in Mendoza Central Entretenmientos S.A. $ 1,000,000   $ 1,000,000    
Number of directors appointed | employee         1
Cost investment         $ 1,000,000
Century Casinos Europe GmbH [Member] | Century Bets! Inc. [Member]          
Business Acquisition [Line Items]          
Ownership percentage         75.00%
Number of directors appointed | employee         3
Rocky Mountain Turf Club [Member] | Century Bets! Inc. [Member]          
Business Acquisition [Line Items]          
Ownership interest         25.00%