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SEGMENT INFORMATION (Details 1) - USD ($)	9 Months Ended
	May 31, 2023	May 31, 2022
Segment Reporting [Abstract]
Sales	$ 24,245,936	$ 25,309,216

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- References

No definition available.

+ Details

Name:	jctcf_Sales
Namespace Prefix:	jctcf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration