Intangible assets (Details) - USD ($)	3 Months Ended	12 Months Ended
Nov. 30, 2021	Aug. 31, 2021
Cost	$ 5,435,334
Foreign exchange	(464,973)
Accumulated amortization	(1,122,694)
Accumulated impairment	(3,801,667)
Intangible assets net carrying value	46,000	$ 46,000
Cannabis Licenses [Member]
Cost	5,435,334
Foreign exchange	(464,973)
Accumulated amortization	(1,122,694)
Accumulated impairment	(3,801,667)
Intangible assets net carrying value	$ 46,000	$ 46,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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