Condensed Consolidated Statements Of Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Total Century Casinos Shareholders' Equity [Member]	Noncontrolling Interest [Member]	Total
BALANCE at Dec. 31, 2014	$ 244	$ 76,169	$ (3,636)	$ 45,651	$ 118,428	$ 3,998	$ 122,426
Shares, BALANCE at Dec. 31, 2014	24,381,057
Net earnings	$ 0	0	0	11,170	11,170	1,085	12,255
Foreign currency translation adjustment	0	0	(7,102)	0	(7,102)	(668)	(7,770)
Amortization of stock-based compensation	0	1,230	0	0	1,230	0	1,230
Distribution to non-controlling interest	0	0	0	0	0	(507)	(507)
Exercise of stock options	$ 0	89	0	0	89	0	89
Exercise of stock options, shares	23,206
Conversion of CDR equity (note 3)	$ 0	(581)	(135)	0	(716)	716	0
BALANCE at Sep. 30, 2015	$ 244	76,907	(10,873)	56,821	123,099	4,624	127,723
Shares, BALANCE at Sep. 30, 2015	24,404,263
BALANCE at Dec. 31, 2015	$ 244	77,318	(12,704)	57,558	122,416	4,859	$ 127,275
Shares, BALANCE at Dec. 31, 2015	24,414,083						24,414,083
Net earnings	$ 0	0	0	6,030	6,030	2,933	$ 8,963
Foreign currency translation adjustment	0	0	2,601	0	2,601	240	2,841
Amortization of stock-based compensation	0	573	0	0	573	0	573
Distribution to non-controlling interest	0	0	0	0	0	(1,896)	(1,896)
Exercise of stock options	$ 0	97	0	0	97	0	97
Exercise of stock options, shares	30,488
BALANCE at Sep. 30, 2016	$ 244	$ 77,988	$ (10,103)	$ 63,588	$ 131,717	$ 6,136	$ 137,853
Shares, BALANCE at Sep. 30, 2016	24,444,571						24,444,571