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Note 1 - Nature of Operations (Details Textual)	Nov. 30, 2021 a
Number of Facilities	2
Fort Wayne, Indiana [Member]
Area of Real Estate Property (Acre)	14,000
Pretoria South Africa [Member]
Area of Real Estate Property (Acre)	10,000

X

- Definition

Represents the number of operating facilities.

+ References

No definition available.

+ Details

Name:	byrn_NumberOfFacilities
Namespace Prefix:	byrn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_RealEstatePropertiesAxis=byrn_FortWayneIndianaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RealEstatePropertiesAxis=byrn_PretoriaSouthAfricaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: