SEGMENT INFORMATION: Schedule of sales by country (Details) - USD ($)	12 Months Ended
Aug. 31, 2022	Aug. 31, 2021
Segment Reporting [Abstract]
United States	$ 60,521,611	$ 55,280,479
Canada	1,151,901	1,556,359
Mexico/Latin America/Caribbean	900,941	325,648
Europe	94,630	171,254
Asia/Pacific	232,748	167,803
Total sales by country	$ 62,901,831	$ 57,501,543

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

No definition available.

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

No definition available.

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

No definition available.

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

No definition available.

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

No definition available.

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

No definition available.

No definition available.

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