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Significant Accounting Policies (Schedule Of Promotional Allowances) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Total promotional allowances | $ 1,164 | $ 1,096 | $ 1,063
Hotel [Member] |  |  |
Total promotional allowances | 47 | 49 | 59
Food And Beverage [Member] |  |  |
Total promotional allowances | $ 1,117 | $ 1,047 | $ 1,004

X
- Definition Promotional allowances, estimated cost + References No definition available. + Details
Name: | cnty_PromotionalAllowancesEstimatedCost
Namespace Prefix: | cnty_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_HotelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=cnty_FoodAndBeverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |