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 Interests [Member]	Total
BALANCE at Dec. 31, 2017		$ 294	$ 113,068	$ (6,127)	$ 72,662		$ 7,421
Net earnings					926		393	$ 1,319
Foreign currency translation adjustment				(1,345)			3	(1,342)
Amortization of stock-based compensation			115
Distribution to non-controlling interest							(30)
Incremental costs of common stock issuance			(5)
BALANCE at Mar. 31, 2018		$ 294	113,178	(7,472)	73,588	$ 179,588	7,787	187,375
BALANCE, Shares at Mar. 31, 2018		2,948,000
BALANCE at Dec. 31, 2018		$ 294	114,214	(14,243)	76,056		7,062	$ 183,383
BALANCE, Shares at Dec. 31, 2018								29,439,179
Net earnings					1,068		655	$ 1,723
Foreign currency translation adjustment				1,429			(61)	1,368
Amortization of stock-based compensation			261
Distribution to non-controlling interest							(37)
BALANCE at Mar. 31, 2019		$ 294	$ 114,475	$ (12,814)	76,892	$ 178,847	7,570	$ 186,417
BALANCE, Shares at Mar. 31, 2019								29,439,179
Cumulative effect of accounting change	[1]				$ (232)		$ (49)

[1] Cumulative effect of accounting change relates to the adoption of Accounting Standards Update 2016-02 ("ASU 2016-02"). See Note 2 to the unaudited condensed consolidated financial statements for further details on the adoption of this accounting standard.