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Cooperative Marketing Agreement (Narrative) (Details) (USD $)
3 Months Ended 12 Months Ended 0 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Jun. 14, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Obligation under the Agreement to enhance purses for live horse racing meet due current                 $ 5,800,000cphc_ObligationUnderAgreementToEnhancePursesForLiveHorseRacingMeetDueCurrent $ 5,300,000cphc_ObligationUnderAgreementToEnhancePursesForLiveHorseRacingMeetDueCurrent  
Obligation under Agreement to support joint marketing activities due current                 660,000cphc_ObligationUnderAgreementToSupportJointMarketingActivitiesDueCurrent 600,000cphc_ObligationUnderAgreementToSupportJointMarketingActivitiesDueCurrent  
Revenues related to marketing payment                 824,842cphc_RevenuesRelatedToMarketingPayment 595,628cphc_RevenuesRelatedToMarketingPayment  
Advertising and marketing expenses related to marketing payment                 608,309cphc_ExpensesRelatedToMarketingPayment 490,072cphc_ExpensesRelatedToMarketingPayment  
Depreciation related to marketing payment                 216,533cphc_DepreciationRelatedToMarketingPayment 105,556cphc_DepreciationRelatedToMarketingPayment  
Stock based compensation expense                 217,000us-gaap_AllocatedShareBasedCompensationExpense 270,000us-gaap_AllocatedShareBasedCompensationExpense  
Expense recorded as an offset to revenue 10,263,711us-gaap_Revenues 15,046,958us-gaap_Revenues 13,784,714us-gaap_Revenues 9,374,454us-gaap_Revenues 10,036,460us-gaap_Revenues 14,274,459us-gaap_Revenues 13,280,950us-gaap_Revenues 9,144,568us-gaap_Revenues 48,469,837us-gaap_Revenues 46,736,437us-gaap_Revenues  
Stock Appreciation Rights (SARs) [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based compensation, other than options granted                       165,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Benefit from appreciation in the value of common stock, per share                     $ 14.30cphc_BenefitFromAppreciationInValueOfCommonStockPerShare
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Number of shares of stock each right represents                     1cphc_NumberOfSharesOfStockEachRightRepresents
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Percentage of the Rights vested                     10.00%cphc_PercentageOfRightsVested
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Number of the Rights vested                 49,500cphc_NumberOfRightsVested
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
  16,500cphc_NumberOfRightsVested
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Number of remaining Rights vest per year                 16,500cphc_NumberOfRemainingRightsVestPerYear
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
  16,500cphc_NumberOfRemainingRightsVestPerYear
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
Stock based compensation expense                 32,354us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
227,592us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
 
Expense recorded as an offset to revenue                 $ 32,354us-gaap_Revenues
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember
$ 227,592us-gaap_Revenues
/ us-gaap_AwardTypeAxis
= us-gaap_StockAppreciationRightsSARSMember