Segment Information (Narrative) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of Co-CEOs | item	2		2
Revenues	$ 37,875	$ 31,555	$ 68,279	$ 60,665
Number of reportable segments | item			3
Century Casinos [Member]
Segment Reporting Information [Line Items]
Revenues	37,875	31,555	$ 68,279	60,665
Century Casinos [Member] | United States [Member]
Segment Reporting Information [Line Items]
Revenues	7,210	6,740	14,003	13,201
Corporate and Other [Member] | International Waters [Member]
Segment Reporting Information [Line Items]
Revenues	900	1,800	2,400	3,300
Corporate and Other [Member] | Aruba [Member]
Segment Reporting Information [Line Items]
Revenues	100	$ 100	200	$ 200
Corporate and Other [Member] | Argentina [Member]
Segment Reporting Information [Line Items]
Revenues	100		100
Termination of Concession agreements [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenues	$ 3,400		$ 3,400