Annual report pursuant to Section 13 and 15(d)

Retirement Plan - Additional Information (Detail)

v2.4.1.9
Retirement Plan - Additional Information (Detail) (USD $)
12 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]    
Amount allows under 401(k) retirement plan 15.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent  
Contribution to 401(k) retirement plan $ 107,000ccel_DefinedContributionPlanEmployerMatchingContributionAmount $ 112,000ccel_DefinedContributionPlanEmployerMatchingContributionAmount