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SEGMENT INFORMATION: Schedule of sales by country (Details) - USD ($)	9 Months Ended
	May 31, 2022	May 31, 2021
Segment Reporting [Abstract]
United States	$ 45,945,594	$ 40,698,374
Canada	879,929	1,197,681
Mexico / Latin America / Caribbean	766,147	181,168
Europe	76,247	171,254
Asia/Pacific	$ 232,748	$ 148,114

X

- Definition

Represents the monetary amount of Asia/Pacific sales, during the indicated time period.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the monetary amount of Canada sales, during the indicated time period.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the monetary amount of Europe sales, during the indicated time period.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the monetary amount of Mexico/Latin America sales, during the indicated time period.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the monetary amount of United States sales, during the indicated time period.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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