Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Additional Information (Detail)

v2.4.1.9
Stockholders' Equity - Additional Information (Detail) (USD $)
12 Months Ended 1 Months Ended 0 Months Ended
Nov. 30, 2014
Nov. 30, 2013
May 31, 2012
Dec. 01, 2013
Nov. 26, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share distribution period 20 days        
Weighted average grant date fair value of options $ 1.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue        
Shares granted during period 22,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod        
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare 0.01us-gaap_CommonStockParOrStatedValuePerShare      
Common shares exchange ratio One Common Share per Right        
Preferred Stock, redemption price Per Share $ 0.01us-gaap_PreferredStockRedemptionPricePerShare        
Market price for common stock, percentage 50.00%ccel_AssociateStockPurchasePlanPricePercentageOfCommonStockMarketPrice        
Assets sale percentage 50.00%ccel_NetCashProceedsFromSaleOfAssetsPercentage        
Rights expiration date Dec. 05, 2017        
Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares 997,266us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
1,112,260us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
     
Granted, Shares 22,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
       
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted $ 0us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
       
Granted, Shares 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
     
Market-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted 0us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedVestingConditionOptionsMember
       
Granted, Shares 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedVestingConditionOptionsMember
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedVestingConditionOptionsMember
     
Options forfeited 213,334us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedVestingConditionOptionsMember
       
Performance and Market-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_PerformanceAndMarketBasedVestingConditionOptionsMember
640,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_PerformanceAndMarketBasedVestingConditionOptionsMember
     
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted 0us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= ccel_PerformanceAndMarketBasedVestingConditionOptionsMember
       
Granted, Shares 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= ccel_PerformanceAndMarketBasedVestingConditionOptionsMember
       
Share based compensation recognized on achievement of performance targets 0us-gaap_StockOptionPlanExpense
/ us-gaap_AwardTypeAxis
= ccel_PerformanceAndMarketBasedVestingConditionOptionsMember
       
Compensation expenses recognized without performance target achievement 0ccel_StockOptionExpensesWithoutPerformanceTarget
/ us-gaap_AwardTypeAxis
= ccel_PerformanceAndMarketBasedVestingConditionOptionsMember
       
Restricted Common Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted 80,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
       
Description of minimum requirement to be satisfied by employee for restricted common share The Employment Agreements state if David Portnoy and Mark Portnoy are employed by the Company on November 30, 2014, then no later than February 15, 2015, the Company will grant up to 186,487 and 162,163 shares of restricted common shares, respectively, based on certain market and performance thresholds, as defined in the agreements.        
Description of minimum requirement to be satisfied by employee for additional restricted common share In addition, if David Portnoy and Mark Portnoy are employed by the Company on November 30, 2015, then no later than February 15, 2016, the Company will grant up to an additional 186,487 and 162,163 shares of restricted common shares, respectively, based on similar performance thresholds, as defined in the agreements.        
Restricted Common Shares [Member] | Selling, General and Administrative Expenses [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Aggregate Fair value of restricted common shares 138,000us-gaap_RestrictedInvestmentsAtFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
       
Restricted Common Shares [Member] | David Portnoy [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock for issuance pursuant to stock options or restricted stock 186,487us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoOneMember
       
Additional restricted common shares to be granted 186,487ccel_AdditionalRestrictedStocksNumberOfSharesGranted
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoOneMember
       
Restricted common shares granted 62,175ccel_RestrictedStocksNumberOfSharesGranted
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoOneMember
       
Restricted Common Shares [Member] | Mark Portnoy [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock for issuance pursuant to stock options or restricted stock 162,163us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoTwoMember
       
Additional restricted common shares to be granted 162,163ccel_AdditionalRestrictedStocksNumberOfSharesGranted
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoTwoMember
       
Restricted common shares granted 54,065ccel_RestrictedStocksNumberOfSharesGranted
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoTwoMember
       
2000 Plan [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock for issuance pursuant to stock options or restricted stock 2,250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandPlanMember
       
Share distribution period 3 years        
Options exercisable period after termination 90 days        
Granted, Shares 2,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandPlanMember
12,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandPlanMember
     
Shares issued under stock incentive plan 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandPlanMember
       
2000 Plan [Member] | Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted 28,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandPlanMember
       
2000 Plan [Member] | Minimum [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Term of options 5 years        
2000 Plan [Member] | Maximum [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Term of options 7 years        
2006 Plan [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock for issuance pursuant to stock options or restricted stock 1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandSixPlanMember
       
Shares issued under stock incentive plan 260,343us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandSixPlanMember
       
Option issued 594,766ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedButNotYetExercised
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandSixPlanMember
739,760ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedButNotYetExercised
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandSixPlanMember
     
2006 Plan [Member] | Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted 28,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandSixPlanMember
       
2012 Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock for issuance pursuant to stock options or restricted stock 1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
Shares issued under stock incentive plan 1,854,031us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of share issued to option holder   400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
     
Increase in common stock reserved for issuance     2,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
   
2012 Plan [Member] | Performance Based Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares 58,120us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_PerformanceBasedStockOptionsMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Performance Based Options [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares   400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_PerformanceBasedStockOptionsMember
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
     
2012 Plan [Member] | Market Based Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares 58,120us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedStockOptionsMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Market Based Options [Member] | Employee Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares   200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedStockOptionsMember
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
     
2012 Plan [Member] | Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted 28,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Service Based Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares 400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedOptionMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Service Based Restricted Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares 129,729us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedRestrictedSharesMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Restricted Common Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share based compensation, percentage of vesting upon grant 33.33%ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
Share based compensation vested period fair value 160,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
       
2012 Plan [Member] | Restricted Common Shares [Member] | Scenario, Forecast [Member] | December One Two Thousand Fourteen [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share based compensation, percentage of vesting upon grant 33.33%ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodPercentage
/ us-gaap_AwardDateAxis
= ccel_DecemberOneTwoThousandFourteenMember
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
       
2012 Plan [Member] | Restricted Common Shares [Member] | Scenario, Forecast [Member] | December One Two Thousand Fifteen [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share based compensation, percentage of vesting upon grant 33.33%ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodPercentage
/ us-gaap_AwardDateAxis
= ccel_DecemberOneTwoThousandFifteenMember
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
       
2012 Plan [Member] | Restricted Common Shares [Member] | David Portnoy [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares granted during period       70,270us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoOneMember
 
2012 Plan [Member] | Restricted Common Shares [Member] | Mark Portnoy [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares granted during period       59,459us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_PlanNameAxis
= ccel_TwoThousandTwelvePlanMember
/ us-gaap_TitleOfIndividualAxis
= ccel_CoCeoTwoMember
 
Preferred Stock Rights Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock, par value         $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_PlanNameAxis
= ccel_PreferredStockRightsPlanMember
Terms for right to purchasing preferred stock Each Right represents the right to purchase from the Company one one-thousandth (1/1,000) of a share of Series A Junior Participating Preferred Stock (the "Preferred Shares"), subject to adjustment as provided in the Rights Agreement. This fraction of a Preferred Share is substantially similar to a Common Share, in that the Rights Agreement provides for each Preferred Share to have the voting, liquidation and dividend rights that are equivalent to 1,000 times the rights of a Common Share.        
Stockholder Rights Agreement [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Acquisition of common stock outstanding percentage 20.00%ccel_PurchaseOfCommonStockPercentageOnOutstandingShares
/ us-gaap_FinancialInstrumentAxis
= ccel_StockholderRightsAgreementMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
       
Addition of common stock outstanding percentage 0.25%ccel_AdditionalPercentageOfOutstandingSharesAcquired
/ us-gaap_FinancialInstrumentAxis
= ccel_StockholderRightsAgreementMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
       
Increase in common stock outstanding percentage 22.50%ccel_PercentageIncreaseInSharesOfOutstandingShares
/ us-gaap_FinancialInstrumentAxis
= ccel_StockholderRightsAgreementMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
       
Stock Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of share issued to option holder 51,245us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
10,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
     
Options exercised 79,142ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesExercisedValue
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
14,950ccel_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesExercisedValue
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
     
Stock Option [Member] | Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Weighted average grant date fair value of options $ 1.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
1.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
     
Weighted-average period 8 months 23 days        
Total fair value of shares vested $ 134,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= ccel_ServiceBasedVestingConditionOptionsMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
       
Stock Option [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares   426,666ccel_DeferredCompensationArrangementWithIndividualSharesGranted
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
     
Options forfeited 426,666us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember
       
Stock Option [Member] | Market-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, Shares   213,334ccel_DeferredCompensationArrangementWithIndividualSharesGranted
/ us-gaap_AwardTypeAxis
= ccel_MarketBasedVestingConditionOptionsMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_StockOptionMember