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SEGMENT INFORMATION: Sales in excess of ten percent of total sales (Details) - USD ($)	3 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Segment Reporting [Abstract]
Sales to customers in excess of 10% of total sales	$ 7,795,215	$ 6,393,994

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- References

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

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