Annual report pursuant to Section 13 and 15(d)

Share Repurchase Plan - Additional Information (Detail)

v2.4.1.9
Share Repurchase Plan - Additional Information (Detail) (USD $)
12 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Jun. 06, 2012
Dec. 31, 2011
Schedule of Share Repurchase Plan [Line Items]        
Number of shares authorized to repurchase     (3,000,000)us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased (1,000,000)us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Shares repurchase plan Open market purchases, privately negotiated block trades, unsolicited negotiated transactions, and/or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities and Exchange Commission      
Number of shares repurchased 2,215,111us-gaap_TreasuryStockSharesAcquired      
Average price per share (repurchased) $ 2.31us-gaap_TreasuryStockAcquiredAverageCostPerShare      
Treasury stock, shares 2,215,111us-gaap_TreasuryStockNumberOfSharesHeld 1,276,915us-gaap_TreasuryStockNumberOfSharesHeld    
Common stock additional share repurchased 8,506ccel_CommonStockAdditionalShareRepurchased      
Average price per share additional repurchased $ 2.35ccel_CommonStockRepurchaseAveragePricePerShare      
Saneron [Member]        
Schedule of Share Repurchase Plan [Line Items]        
Treasury stock, shares 0us-gaap_TreasuryStockNumberOfSharesHeld
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember
150,100us-gaap_TreasuryStockNumberOfSharesHeld
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ccel_SaneronMember