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v3.22.1

Commitments and Contingencies - Additional Information (Detail) | 3 Months Ended
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Feb. 28, 2022
Minimum [Member] |
Commitment And Contingencies [Line Items] |
Employee agreements period | 1 year
Maximum [Member] |
Commitment And Contingencies [Line Items] |
Employee agreements period | 2 years

X
- Definition Commitment And Contingencies [Line Items] + References No definition available. + Details
Name: | ccel_CommitmentAndContingenciesLineItems
Namespace Prefix: | ccel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Employment agreements period. + References No definition available. + Details
Name: | ccel_EmploymentAgreementsPeriod
Namespace Prefix: | ccel_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |