Warrants reserve (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
Feb. 28, 2022	Aug. 31, 2021	Aug. 31, 2020
IfrsStatementLineItems [Line Items]
Weighted average exercise price	$ 0.72	$ 0.94	$ 1.19
Weighted average remaining contractual life of outstanding share options	4 years 1 month 6 days
Five Year Warrants [Member]
IfrsStatementLineItems [Line Items]
Issaunce of warrants	17,948,718	16,461,539
Warrants exercise price	$ 0.44	$ 0.80
Five Year Warrants One [Member]
IfrsStatementLineItems [Line Items]
Issaunce of warrants	17,948,718	16,461,539
Fair value of warrants	$ 2,670	$ 7,800
Dividend yield	0.00%	0.00%
Risk free interest	1.65%	0.46%
Volatility	52.00%	62.00%
Expected life	60 months	60 months
Five Year Warrants Two [Member]
IfrsStatementLineItems [Line Items]
Issaunce of warrants	628,205	1,152,307
Fair value of warrants	$ 90	$ 500
Dividend yield	0.00%	0.00%
Risk free interest	1.65%	0.46%
Volatility	52.00%	62.00%
Expected life	60 months	60 months
Three Year Warrants [Member]
IfrsStatementLineItems [Line Items]
Issaunce of warrants		2,777,268
Warrants exercise price		$ 1.50
Three Year Warrants One [Member]
IfrsStatementLineItems [Line Items]
Issaunce of warrants		2,777,268
Fair value of warrants		$ 400
Dividend yield		0.00%
Risk free interest		0.18%
Volatility		69.00%
Expected life		36 months

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2021-03-24

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The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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The percentage of an expected dividend used to calculate the fair value of share options granted.

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The weighted average remaining contractual life of outstanding share options. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 45
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45_d&doctype=Standard
-URIDate 2021-03-24

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