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Retirement Plan (Details Textual) (USD $)	12 Months Ended
	Nov. 30, 2012	Nov. 30, 2011
Retirement Plan (Textual) [Abstract]
Amount allows under 401(k) retirement plan	15.00%
Contribution to 401(k) retirement plan	$ 68,000	$ 67,000

X

- Definition

Defined contribution plan employer matching contribution amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	ccel_
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Balance Type:	debit
Period Type:	duration

X

- Definition

Defined contribution plan maximum percentage employees contribution.

+ References

No definition available.

+ Details

Name:	ccel_DefinedContributionPlanMaximumPercentageEmployeesContribution
Namespace Prefix:	ccel_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:	ccel_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration