Condensed Consolidated Statements Of Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained (Loss) Earnings [Member]	Total Century Casinos, Inc. Shareholders' Equity (Deficit) [Member]	Non-controlling Interests [Member]	Total
Balance at Dec. 31, 2023	$ 304	$ 124,094	$ (12,073)	$ 9,067		$ 93,049
Net loss				(55,157)		4,450	$ (50,707)
Foreign currency translation adjustment			(2,267)			(82)	(2,349)
Amortization of stock-based compensation		846
Distributions to non-controlling interests						(4,983)
Performance stock unit issuance	3	(238)
Balance at Jun. 30, 2024	$ 307	124,702	(14,340)	(46,090)	$ 64,579	92,434	157,013
Common shares issued	322,672
Balance at Mar. 31, 2024	$ 307	124,359	(14,138)	(4,477)		92,898
Net loss				(41,613)		2,600	(39,013)
Foreign currency translation adjustment			(202)			(42)	(244)
Amortization of stock-based compensation		343
Distributions to non-controlling interests						(3,022)
Balance at Jun. 30, 2024	307	124,702	(14,340)	(46,090)	64,579	92,434	157,013
Balance at Dec. 31, 2024	307	123,922	(14,426)	(119,103)		91,304	82,004
Common stock repurchase (including incremental costs)	(4)	(954)
Net loss				(32,922)		4,470	(28,452)
Foreign currency translation adjustment			1,201			591	1,792
Amortization of stock-based compensation		486
Distributions to non-controlling interests						(4,673)
Balance at Jun. 30, 2025	303	123,454	(13,225)	(152,025)	(41,493)	91,692	$ 50,199
Common shares repurchased and retired							(428,734)
Balance at Mar. 31, 2025	307	124,212	(13,720)	(139,716)		91,489
Common stock repurchase (including incremental costs)	(4)	(954)
Net loss				(12,309)		2,736	$ (9,573)
Foreign currency translation adjustment			495			210	705
Amortization of stock-based compensation		196
Distributions to non-controlling interests						(2,743)
Balance at Jun. 30, 2025	$ 303	$ 123,454	$ (13,225)	$ (152,025)	$ (41,493)	$ 91,692	$ 50,199
Common shares repurchased and retired							(428,734)