Condensed Consolidated Statements Of Equity - USD ($) $ in Thousands		Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total Century Casinos Shareholders' Equity [Member]	Noncontrolling Interest [Member]	Total
BALANCE at Dec. 31, 2015		$ 244	$ 77,318	$ (12,683)	$ 57,171	$ 122,050	$ 4,737	$ 126,787
Shares, BALANCE at Dec. 31, 2015		24,414,083
Net earnings		$ 0	0	0	2,281	2,281	459	2,740
Foreign currency translation adjustment		0	0	3,347	0	3,347	382	3,729
Amortization of stock-based compensation		0	190	0	0	190	0	190
Exercise of stock options		$ 0	43	0	0	43	0	43
Exercise of stock options, shares		17,037
BALANCE at Mar. 31, 2016		$ 244	77,551	(9,336)	59,452	127,911	5,578	133,489
Shares, BALANCE at Mar. 31, 2016		24,431,120
Cumulative effect of accounting change	[1]	$ 0	(17)	0	17	0	0	0
BALANCE at Dec. 31, 2016		$ 245	78,174	(12,609)	66,386	132,196	6,388	138,584
BALANCE at Dec. 31, 2016								$ 138,584
Shares, BALANCE at Dec. 31, 2016		24,451,582						24,451,582
Net earnings		$ 0	0	0	2,159	2,159	638	$ 2,797
Foreign currency translation adjustment		0	0	1,176	0	1,176	384	1,560
Amortization of stock-based compensation		0	103	0	0	103	0	103
Distribution to non-controlling interest		0	0	0	0	0	(58)	(58)
Exercise of stock options		$ 0	32	0	0	32	0	32
Exercise of stock options, shares		8,422
BALANCE at Mar. 31, 2017		$ 245	$ 78,292	$ (11,433)	$ 68,562	$ 135,666	$ 7,352	$ 143,018
Shares, BALANCE at Mar. 31, 2017		24,460,004						24,460,004

[1] Cumulative effect of accounting change relates to the adoption of Accounting Standards Update 2016-09. See Note 2 of the condensed consolidated financial statements for further details on the adoption of this accounting standard