Mineral Properties and Deferred Exploration (Details)	12 Months Ended
Aug. 31, 2020 CAD ($)
Geological consulting and field wages
Initial period (4 years)	$ 500
First renewal (3 years)	1,000
Second renewal (2 years)	$ 2,000

The minimum amount of expenditure per year for prospecting operations during the second renewal period.

No definition available.

Name:	trx_ProspectingOperationsMinimumExpenditurePerYearSecondRenewal
Namespace Prefix:	trx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration