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Subsequent Event (Details) (Subsequent Event [Member])
 6 Months Ended
Jun. 30, 2015
Century Casinos Europe GmbH [Member]  
Subsequent Event [Line Items]  
Percentage of Century Bets! Inc. to be owned 75.00%us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
/ dei_LegalEntityAxis
= cnty_CenturyCasinosEuropeGmbhMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Rocky Mountain Turf Club [Member]  
Subsequent Event [Line Items]  
Percentage of Century Bets! Inc. to be owned 25.00%us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
/ dei_LegalEntityAxis
= cnty_RockyMountainTurfClubMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember