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Commitments, Contingencies And Other Matters (Narrative) (Details)
In Millions, unless otherwise specified
 12 Months Ended 12 Months Ended
Dec. 31, 2014
USD ($)
Dec. 29, 2014
USD ($)
Dec. 29, 2014
EUR (€)
Dec. 31, 2014
401K Plan [Member]
USD ($)
Dec. 31, 2013
401K Plan [Member]
USD ($)
Dec. 31, 2014
RSP And RPP Plans [Member]
USD ($)
item
Dec. 31, 2013
RSP And RPP Plans [Member]
USD ($)
Contributed to plan       $ 0.1us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
/ cnty_BenefitPlanAxis
= us-gaap_DefinedContributionPensionMember		 $ 0.1us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
/ cnty_BenefitPlanAxis
= us-gaap_DefinedContributionPensionMember		 $ 0.1us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
/ cnty_BenefitPlanAxis
= cnty_RegisteredSavingsPlanAndRegisteredPensionPlanMember		 $ 0.1us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
/ cnty_BenefitPlanAxis
= cnty_RegisteredSavingsPlanAndRegisteredPensionPlanMember
Number of registered retirement plans in Canada           2cnty_NumberOfRegisteredRetirementPlansInCanada
/ cnty_BenefitPlanAxis
= cnty_RegisteredSavingsPlanAndRegisteredPensionPlanMember		  
Vesting period for plan       6 years   2 years  
Austrian depository certificates guarantee   1.1cnty_DepositoryCertificatesGuarantee 0.8cnty_DepositoryCertificatesGuarantee        
Rental expenses $ 0.8us-gaap_LeaseAndRentalExpense