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Description Of Business And Basis Of Presentation (Narrative) (Details)
 1 Months Ended 3 Months Ended 3 Months Ended 0 Months Ended 3 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended
Oct. 31, 2014
Mar. 31, 2015
USD ($)
item
Mar. 31, 2015
CAD
item
Dec. 31, 2014
USD ($)
Mar. 31, 2015
Percentage Of CPL Owned By CCE [Member]
Mar. 31, 2015
Percentage Of CPL Owned By Polish Airport [Member]
Mar. 31, 2015
Percentage Of CDR Owned by CCE [Member]
Mar. 31, 2015
Percentage Of CDR Owned By Unaffiliated Shareholders [Member]
Mar. 31, 2015
Century Casinos [Member]
Century Bets! Inc. [Member]
Feb. 21, 2013
Casinos Poland Ltd [Member]
Apr. 30, 2013
Casinos Poland Ltd [Member]
Mar. 31, 2007
Casinos Poland Ltd [Member]
Mar. 31, 2015
Windstar Cruises [Member]
item
Mar. 31, 2015
Oceania Cruises [Member]
Mar. 31, 2015
Rocky Mountain Turf Club [Member]
Century Bets! Inc. [Member]
May 31, 2014
Subsequent Event [Member]
Windstar Cruises [Member]
item
Mar. 31, 2015
Century Downs Racetrack And Casino [Member]
Mar. 20, 2015
Century Downs Racetrack And Casino [Member]
Mar. 20, 2015
Century Downs Racetrack And Casino [Member]
Century Casinos Europe GmbH [Member]
Mar. 20, 2015
Century Downs Racetrack And Casino [Member]
Century Casinos Europe GmbH [Member]
CAD
Oct. 31, 2014
Mendoza Central Entretenimientos S. A. [Member]
Century Casinos Europe GmbH [Member]
USD ($)
Oct. 31, 2014
Mendoza Central Entretenimientos S. A. [Member]
Century Casinos Europe GmbH [Member]
USD ($)
Mar. 31, 2015
Mendoza Central Entretenimientos S. A. [Member]
Century Casinos Europe GmbH [Member]
USD ($)
item
Description Of Business And Basis Of Presentation [Line Items]                                              
Ownership percentage   25.00%us-gaap_EquityMethodInvestmentOwnershipPercentage 25.00%us-gaap_EquityMethodInvestmentOwnershipPercentage     33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ cnty_SubsidiariesAxis
= cnty_PercentageOfCplOwnedByPolishAirportMember		     75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ cnty_SubsidiariesAxis
= cnty_CenturyBetsIncMember		   66.60%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= cnty_CasinosPolandLtdMember		 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= cnty_CasinosPolandLtdMember		         75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_BusinessAcquisitionAxis
= cnty_CenturyDownsRacetrackAndCasinoMember		 75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_BusinessAcquisitionAxis
= cnty_CenturyDownsRacetrackAndCasinoMember		          
Additional ownership acquired         33.30%cnty_AdditionalOwnershipPercentageToAcquire
/ cnty_SubsidiariesAxis
= cnty_PercentageOfCplOwnedByCceMember		         33.30%cnty_AdditionalOwnershipPercentageToAcquire
/ dei_LegalEntityAxis
= cnty_CasinosPolandLtdMember		                 60.00%cnty_AdditionalOwnershipPercentageToAcquire
/ us-gaap_BusinessAcquisitionAxis
= cnty_CenturyDownsRacetrackAndCasinoMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember		 60.00%cnty_AdditionalOwnershipPercentageToAcquire
/ us-gaap_BusinessAcquisitionAxis
= cnty_CenturyDownsRacetrackAndCasinoMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember		      
Ownership interest             15.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ cnty_SubsidiariesAxis
= cnty_PercentageOfCenturyDownsRacetrackOwnedByCenturyCasinosEuropeMember		 25.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ cnty_SubsidiariesAxis
= cnty_PercentageOfCenturyDownsRacetrackOwnedByUnaffiliatedShareholdersMember		             25.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ dei_LegalEntityAxis
= cnty_RockyMountainTurfClubMember
/ cnty_SubsidiariesAxis
= cnty_CenturyBetsIncMember		             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
Number of ship-based casinos   16cnty_NumberOfShipBasedCasinos 16cnty_NumberOfShipBasedCasinos                                        
Number of cruise lines   5cnty_NumberOfCruiseLines 5cnty_NumberOfCruiseLines                                        
Number of cruise ships                         2cnty_NumberOfCruiseShips
/ dei_LegalEntityAxis
= cnty_WindstarCruisesMember		     3cnty_NumberOfCruiseShips
/ dei_LegalEntityAxis
= cnty_WindstarCruisesMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember		              
Number of passengers   2,500cnty_NumberOfPassengers 2,500cnty_NumberOfPassengers                                        
Number of ships for which concession agreements will be terminated   8cnty_NumberOfShipsForWhichConcessionAgreementsWillBeTerminated 8cnty_NumberOfShipsForWhichConcessionAgreementsWillBeTerminated                                        
Term of consulting agreement                           2 years                  
Convertible amount     11,000,000us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent                                        
Convertible percent of ownership interest   60.00%cnty_ConvertiblePercentOfOwnershipInterest 60.00%cnty_ConvertiblePercentOfOwnershipInterest                                        
Amount of credit agreement converted                                       11,000,000us-gaap_DebtConversionOriginalDebtAmount1
/ us-gaap_BusinessAcquisitionAxis
= cnty_CenturyDownsRacetrackAndCasinoMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember		      
Investment in Mendoza Central Entretenmientos S.A.                                         1,000,000us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates
/ us-gaap_BusinessAcquisitionAxis
= cnty_MendozaCentralEntretenimientosSMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember		 1,000,000us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates
/ us-gaap_BusinessAcquisitionAxis
= cnty_MendozaCentralEntretenimientosSMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember		  
Number of subsidiary directors the company has the right to appoint                                             1cnty_NumberOfSubsidiaryDirectorsCompanyHasRightToAppoint
/ us-gaap_BusinessAcquisitionAxis
= cnty_MendozaCentralEntretenimientosSMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember
Subsidiary share purchase option percentage 50.00%cnty_SubsidiarySharePurchaseOptionPercentage                                            
Subsidiary share purchase option term                                           3 years  
Cost investment   $ 1,000,000us-gaap_InvestmentOwnedAtCost   $ 1,000,000us-gaap_InvestmentOwnedAtCost                                     $ 1,000,000us-gaap_InvestmentOwnedAtCost
/ us-gaap_BusinessAcquisitionAxis
= cnty_MendozaCentralEntretenimientosSMember
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember