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WARRANTS - Schedule of weighted-average remaining contractual life of warrants (Details) | 12 Months Ended
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Nov. 30, 2019 | Nov. 30, 2018
Warrants [Abstract] |  |
Class of Warrant or Right, Weighted Average Remaining Contractual Term | 3 years 6 months 18 days | 3 years 10 months 17 days
Class of Warrant or Right Exercisable, Weighted Average Remaining Contractual Term | 3 years 6 months | 3 years 10 months 17 days

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- Definition Class of Warrant or Right, Weighted Average Remaining Contractual Term. + References No definition available. + Details
Name: | byrn_ClassOfWarrantOrRightExercisableWeightedAverageRemainingContractualTerm
Namespace Prefix: | byrn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Class of Warrant or Right, Weighted Average Remaining Contractual Term + References No definition available. + Details
Name: | byrn_ClassOfWarrantOrRightWeightedAverageRemainingContractualTerm
Namespace Prefix: | byrn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | byrn_WarrantsAbstract
Namespace Prefix: | byrn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration