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, Inc. Shareholders' Equity [Member]	Noncontrolling Interests [Member]	Total
BALANCE at Dec. 31, 2018		$ 294	$ 114,214	$ (14,243)	$ 76,056		$ 7,062
Net (loss) earnings					1,068		655	$ 1,723
Foreign currency translation adjustment				1,429			(61)	1,368
Amortization of stock-based compensation	[1]		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
Cumulative effect of accounting change	[2]				(232)		(49)
BALANCE at Dec. 31, 2019		295	115,784	(9,442)	56,669		8,769	$ 172,075
BALANCE, Shares at Dec. 31, 2019								29,500,327
Performance stock unit issuance		1
Net (loss) earnings					(45,856)		195	$ (45,661)
Foreign currency translation adjustment				(12,838)			(889)	(13,727)
Amortization of stock-based compensation	[1]		(14)
BALANCE at Mar. 31, 2020		$ 296	$ 115,770	$ (22,280)	$ 10,813	$ 104,599	$ 8,075	$ 112,674
BALANCE, Shares at Mar. 31, 2020								29,575,962
Common shares issued		75,635

[1] Includes forfeiture credit for cancelled shares.

[2] Cumulative effect of accounting change relates to the adoption of Accounting Standards Update 2016-02. See Note 13 to the unaudited condensed consolidated financial statements for further details on the adoption of this accounting standard.