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RELATED PARTY TRANSACTIONS (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020	Nov. 30, 2018	Nov. 30, 2020
Related Party Transaction [Line Items]
Number of stock options granted			41,000
Stock Issued During Period, Value, Purchase of Assets				$ 697
Value of common stock issued for services				118
Andre Buys [Member]
Related Party Transaction [Line Items]
Payments for royalties			$ 200	1
Accrued royalties payable	$ 100		100			$ 300
Number of stock options granted					150,000
Stock-based compensation expense	$ 2	$ 4	6	8
Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Monthly rent, utilities and maintenance charge			$ 2
Related party transaction, amounts of expenses		$ 10		$ 20
Patents [Member] | Andre Buys [Member]
Related Party Transaction [Line Items]
Stock Issued During Period, Shares, Purchase of Assets			386,681
Stock Issued During Period, Value, Purchase of Assets			$ 700

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