Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2025	Aug. 04, 2025
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Period End Date	Jun. 30, 2025
Document Transition Report	false
Entity File Number	0-22900
Entity Registrant Name	CENTURY CASINOS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-1271317
Entity Address, Address Line One	455 E. Pikes Peak Ave.
Entity Address, Address Line Two	Suite 210
Entity Address, City or Town	Colorado Springs
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80903
City Area Code	719
Local Phone Number	527-8300
Title of 12(b) Security	Common Stock, $0.01 Per Share Par Value
Trading Symbol	CNTY
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		30,020,396
Entity Central Index Key	0000911147