| Document and Entity Information - shares | 3 Months Ended | |
| Mar. 31, 2020 | May 14, 2020 | |
| Document and Entity Information [Abstract] | ||
| Document Type | 10-Q/A | |
| Document Quarterly Report | true | |
| Document Period End Date | Mar. 31, 2020 | |
| 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 | false | |
| Entity Emerging Growth Company | false | |
| Entity Shell Company | false | |
| Entity Common Stock, Shares Outstanding | 29,575,962 | |
| Amendment Flag | true | |
| Entity Central Index Key | 0000911147 | |
| Current Fiscal Year End Date | --12-31 | |
| Document Fiscal Period Focus | Q1 | |
| Document Fiscal Year Focus | 2020 | |
| Amendment Description | The sole purpose of this Amendment No. 1 (the "Amendment") to the Quarterly Report on Form 10-Q of Century Casinos, Inc. (the "Company") for the quarterly period ended March 31, 2020 that was filed with the U.S. Securities and Exchange Commission (the "SEC") on May 20, 2020 (the "Form 10-Q") is to add this Explanatory Note, which was inadvertently omitted from the Form 10-Q. As previously disclosed in the Current Report on Form 8-K filed by the Company with the SEC on May 8, 2020, the filing of the Form 10-Q was delayed due to disruptions caused by the coronavirus ("COVID-19") pandemic. Between March 14, 2020 and March 17, 2020, the Company closed all of its casinos, hotels and other facilities to comply with quarantines issued by governments to contain the spread of COVID-19. The volatility in the Company's current and projected earnings triggered the need to conduct impairment assessments on its intangible and long-lived assets and goodwill. The uncertainty caused by COVID-19 complicated the analysis required in connection with such impairment assessments. The significant amount of additional time and resources needed to complete these assessments prevented the Company from filing the Form 10-Q by its May 11, 2020 due date. The Company relied on the SEC's Order Under Section 36 of the Securities Exchange Act of 1934 Modifying Exemptions From the Reporting and Proxy Delivery Requirements for Public Companies, dated March 25, 2020 (Release No. 34-88465), to delay the filing of the Form 10-Q. Pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this Amendment No. 1 also contains new certifications of the Company's principal executive officers and principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Because no financial statements are included in this Amendment No. 1 and this Amendment No. 1 does not contain or amend any disclosure with respect to Items 307 or 308 of Regulation S-K promulgated by the SEC under the Exchange Act, paragraphs 3, 4 and 5 of the Section 302 certifications have been omitted. In addition, because no financial statements are included in this Amendment No. 1, new certifications of the Company's principal executive officers and principal financial officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 are not required to be included with this Amendment No. 1. This Amendment No. 1 does not modify or update in any way the disclosures contained in or exhibits filed or furnished with the Form 10-Q other than as set forth above. |
