v3.26.1
Related Party Transactions - Additional Information (Details)
12 Months Ended
May 31, 2026
Related Party Transactions [Abstract]
Term of agreement
1 year
X
- Definition
Related Party, Term Of Agreement
+ References
No definition available.
+ Details
Name:
chrn_RelatedPartyTermOfAgreement
Namespace Prefix:
chrn_
Data Type:
xbrli:durationItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration