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Acquisition And Investments (Narrative) (Details) (USD $) | 3 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Oct. 31, 2014 | Dec. 31, 2014 | Oct. 31, 2014 | Mar. 31, 2015 | Apr. 30, 2013 | Mar. 31, 2007
Business Acquisition [Line Items] |  |  |  |  |  |  |
Ownership percentage |  |  |  |  | 25.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |
Cost investment | $ 1,000,000 us-gaap_InvestmentOwnedAtCost |  | $ 1,000,000 us-gaap_InvestmentOwnedAtCost |  | $ 1,000,000 us-gaap_InvestmentOwnedAtCost |  |
Century Bets! Inc. [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquisition costs | 100,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = cnty_CenturyBetsIncMember |  |  |  |  |  |
Casinos Poland Ltd [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  | 66.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = cnty_CasinosPolandLtdMember | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = cnty_CasinosPolandLtdMember
Century Casinos Europe GmbH [Member] | Mendoza Central Entretenimientos S. A. [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Ownership interest |  | 7.50%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  | 7.50%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember | 7.50%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |
Acquisition costs |  |  | 200,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |  |  |
Period of option to purchase additional equity interest |  |  |  |  | 3 cnty_PeriodOfOptionToPurchaseAdditionalEquityInterest / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |
Additional interest to purchase under option, percentage |  |  |  |  | 50.00%cnty_AdditionalInterestToPurchaseUnderOptionPercentage / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |
Investment in Mendoza Central Entretenmientos S.A. |  | 1,000,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  | 1,000,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |  |
Cost investment |  |  |  |  | 1,000,000 us-gaap_InvestmentOwnedAtCost / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |
Century Casinos Europe GmbH [Member] | Century Bets! Inc. [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Ownership percentage |  |  |  |  | 75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = cnty_CenturyBetsIncMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |
Number of directors appointed |  |  |  |  | $ 3 cnty_NumberOfDirectorsAppointed / us-gaap_BusinessAcquisitionAxis = cnty_CenturyBetsIncMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |
Rocky Mountain Turf Club [Member] | Century Bets! Inc. [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Ownership interest |  |  |  |  | 25.00%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_BusinessAcquisitionAxis = cnty_CenturyBetsIncMember / dei_LegalEntityAxis = cnty_RockyMountainTurfClubMember |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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