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Assets held for sale (Details Narrative) - USD ($) $ in Millions	6 Months Ended	9 Months Ended
	Aug. 31, 2021	Nov. 30, 2021
Assets held for sale (Details)
Land acquired descriprtion	On May 27, 2021, we acquired land in Bécancour, Québec for cash of $4.8 million (CDN $5.9 million).
Land acquired for cash, amount	$ 4.8	$ 4.8

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- Definition

Describes contracts, agreements and arrangements that give the entity unilateral rights to purchase the land covered by the option for a specified period of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 340
-Section 25
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121568667&loc=d3e29293-110302

+ Details

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

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- Definition

The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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