Goodwill And Intangible Assets (Changes In The Carrying Amount Of Goodwill) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill [Line Items]
Balance at beginning of period	$ 15,162
Effect of foreign currency translation	(877)
Balance at end of period	14,285
Century Resorts Alberta [Member]
Goodwill [Line Items]
Balance at beginning of period	3,919
Effect of foreign currency translation	(186)
Balance at end of period	3,733
Century Downs Racetrack And Casino [Member]
Goodwill [Line Items]
Balance at beginning of period	151
Effect of foreign currency translation	(7)
Balance at end of period	144
Century Casino St. Albert [Member]
Goodwill [Line Items]
Balance at beginning of period	3,747
Effect of foreign currency translation	(177)
Balance at end of period	3,570
Casinos Poland Ltd [Member]
Goodwill [Line Items]
Balance at beginning of period	7,345
Effect of foreign currency translation	(507)
Balance at end of period	$ 6,838