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, 2017		$ 294	$ 113,068	$ (6,127)	$ 72,662		$ 7,421
Net earnings (loss)					1,244		174	$ 1,418
Foreign currency translation adjustment				(4,700)			(645)	(5,345)
Amortization of stock-based compensation			347
Distribution to non-controlling interest							(30)
Fair value of non-controlling interest								445
Incremental costs of common stock issuance			(59)
Exercise of stock options								155
BALANCE at Jun. 30, 2018		$ 294	113,511	(10,827)	73,906	$ 176,884	7,365	184,249
Common shares issued		39,198,000
BALANCE at Mar. 31, 2018		$ 294	113,178	(7,472)	73,588		7,787
Net earnings (loss)					318		(219)	97
Foreign currency translation adjustment				(3,355)			(648)	(4,004)
Amortization of stock-based compensation			232
Fair value of non-controlling interest								445
Incremental costs of common stock issuance			(54)
Exercise of stock options								155
BALANCE at Jun. 30, 2018		$ 294	113,511	(10,827)	73,906	176,884	7,365	184,249
Common shares issued		36,250,000
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 (loss)					503		1,578	$ 2,081
Foreign currency translation adjustment				3,417			190	3,607
Amortization of stock-based compensation			621
Distribution to non-controlling interest							(989)
Fair value of non-controlling interest								(399)
Exercise of stock options								45
BALANCE at Jun. 30, 2019		$ 294	114,880	(10,826)	76,327	180,675	7,393	$ 188,068
BALANCE, Shares at Jun. 30, 2019								29,448,179
Common shares issued		9,000,000
BALANCE at Mar. 31, 2019		$ 294	114,475	(12,814)	76,892		7,570
Net earnings (loss)					(565)		923	$ 358
Foreign currency translation adjustment				1,988			251	2,239
Amortization of stock-based compensation			360
Distribution to non-controlling interest							(952)
Fair value of non-controlling interest								(399)
Exercise of stock options								45
BALANCE at Jun. 30, 2019		$ 294	$ 114,880	$ (10,826)	76,327	$ 180,675	7,393	$ 188,068
BALANCE, Shares at Jun. 30, 2019								29,448,179
Common shares issued		9,000,000
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.