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Note 17 - Earnings Per Share (Details Textual) - shares	3 Months Ended	6 Months Ended
	May 31, 2021	May 31, 2021
Restricted Stock Units (RSUs) [Member]
Contingently Issuable Shares (in shares)	1,155,000	1,155,000

X

- Definition

The number of contingently issuable shares.

+ References

No definition available.

+ Details

Name:	byrn_ContingentlyIssuableShares
Namespace Prefix:	byrn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: