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Note 6 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual)	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Extended Product Warranty, Term (Year)	3 years	3 years

X

- Definition

Represents the term associated with the extended product warranty.

+ References

No definition available.

+ Details

Name:	byrn_ExtendedProductWarrantyTerm
Namespace Prefix:	byrn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration