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Promotional Allowances (Schedule Of Promotional Allowances) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Promotional Allowances [Line Items] |  |  |  |  |
Total promotional allowances | $ 308 | $ 284 | $ 590 | $ 563 |
Outstanding Balance Of Promotional Allowance Liability | 700 |  | 700 |  | $ 700
Hotel [Member] |  |  |  |  |
Promotional Allowances [Line Items] |  |  |  |  |
Total promotional allowances | 12 | 13 | 26 | 25 |
Food And Beverage [Member] |  |  |  |  |
Promotional Allowances [Line Items] |  |  |  |  |
Total promotional allowances | $ 296 | $ 271 | $ 564 | $ 538 |

X
- Definition This element represents the outstanding balance of the promotional allowance liability. Promotional allowances are the estimated retail value of accommodations, food and beverage, and other services furnished to guests without charge. + References No definition available. + Details
Name: | cnty_OutstandingBalanceOfPromotionalAllowanceLiability
Namespace Prefix: | cnty_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Promotional Allowances [Line Items] + References No definition available. + Details
Name: | cnty_PromotionalAllowancesLineItems
Namespace Prefix: | cnty_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=cnty_HotelRevenueMember
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: |