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Discontinued Operations (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Discontinued Operations [Line Items]    
Loss from discontinued operations, net of tax $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity $ (157)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Dreamworld Casino (Pailin) Limited [Member]    
Discontinued Operations [Line Items]    
Loss from operations 0us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
/ dei_LegalEntityAxis
= egt_DreamworldCasinoPailinLimitedMember
(165)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
/ dei_LegalEntityAxis
= egt_DreamworldCasinoPailinLimitedMember
Foreign currency exchange gain 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation
/ dei_LegalEntityAxis
= egt_DreamworldCasinoPailinLimitedMember
8us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation
/ dei_LegalEntityAxis
= egt_DreamworldCasinoPailinLimitedMember
Loss from discontinued operations, net of tax $ 0us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
/ dei_LegalEntityAxis
= egt_DreamworldCasinoPailinLimitedMember
$ (157)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
/ dei_LegalEntityAxis
= egt_DreamworldCasinoPailinLimitedMember