Annual report pursuant to Section 13 and 15(d)

Investments in Affiliates - Additional Information (Detail)

v2.4.1.9
Investments in Affiliates - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2013
Installment
Aug. 31, 2014
Nov. 30, 2014
Nov. 30, 2013
Investments In Affiliates [Line Items]        
Equity method investment     $ 684,000us-gaap_EquityMethodInvestments $ 684,000us-gaap_EquityMethodInvestments
Accumulated Deficit [Member]        
Investments In Affiliates [Line Items]        
Reclassification from treasury stock to accumulated deficit.   (400,000)us-gaap_PriorPeriodReclassificationAdjustment
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember
   
Treasury Stock [Member]        
Investments In Affiliates [Line Items]        
Reclassification from treasury stock to accumulated deficit.   400,000us-gaap_PriorPeriodReclassificationAdjustment
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember
   
Saneron [Member]        
Investments In Affiliates [Line Items]        
Ownership interest     33.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
34.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Goodwill     684,000us-gaap_Goodwill
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
684,000us-gaap_Goodwill
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Equity method investment     684,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
684,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Equity method investment, impairment loss     0ccel_EquityMethodInvestmentsImpairment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
0ccel_EquityMethodInvestmentsImpairment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Goodwill Impairment     0us-gaap_GoodwillImpairmentLoss
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
0us-gaap_GoodwillImpairmentLoss
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Loan Saneron in quarterly payments an aggregate amount     300,000ccel_InvestmentsInAndAdvancesToAffiliatesAggregateAmountOfLoanMaximum
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Initial loan amount     150,000ccel_InvestmentsInAndAdvancesToAffiliatesAggregateAmountOfInitialLoan
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Additional quarterly payments 5ccel_NumberOfQuarterlyInstallmentInWhichLoanIsPayable
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
     
Date of maturity     5 years  
First initial quarterly payment 37,500ccel_ProceedsFromQuarterlyInstallmentLoanReceivable
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
     
Equity in losses     363,000ccel_InvestmentsInAffiliatesEquityInAggregateLosses
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
154,000ccel_InvestmentsInAffiliatesEquityInAggregateLosses
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Common shares repurchased   93,800us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
   
Common shares per share value   $ 2.60us-gaap_SaleOfStockPricePerShare
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
   
Common shares sold by Saneron   56,300us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
   
Saneron [Member] | Additional Investments [Member]        
Investments In Affiliates [Line Items]        
Equity in losses     187,500ccel_InvestmentsInAffiliatesEquityInAggregateLosses
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_InvestmentsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Saneron [Member] | Stock Awards [Member]        
Investments In Affiliates [Line Items]        
Equity in losses     93,904ccel_InvestmentsInAffiliatesEquityInAggregateLosses
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= ccel_StockAwardsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Saneron [Member] | Other Investments In Affiliates [Member]        
Investments In Affiliates [Line Items]        
Equity in losses       81,480ccel_InvestmentsInAffiliatesEquityInAggregateLosses
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= ccel_OtherInvestmentsInAffiliatesMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
Saneron [Member] | Initial Loan [Member]        
Investments In Affiliates [Line Items]        
Additional quarterly payments     4ccel_NumberOfQuarterlyInstallmentInWhichLoanIsPayable
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= ccel_InitialLoanMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Quarterly installments per quarter     37,500ccel_InvestmentsInAndAdvancesToAffiliatesAggregateAmountOfQuarterlyInstallmentLoan
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= ccel_InitialLoanMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Saneron [Member] | Additional Loan [Member]        
Investments In Affiliates [Line Items]        
Initial loan amount     150,000ccel_InvestmentsInAndAdvancesToAffiliatesAggregateAmountOfInitialLoan
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= ccel_AdditionalLoanMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Additional quarterly payments     4ccel_NumberOfQuarterlyInstallmentInWhichLoanIsPayable
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= ccel_AdditionalLoanMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
 
Quarterly installments per quarter     $ 37,500ccel_InvestmentsInAndAdvancesToAffiliatesAggregateAmountOfQuarterlyInstallmentLoan
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= ccel_AdditionalLoanMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember