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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)	9 Months Ended
	Feb. 28, 2022 USD ($) ft²	Feb. 28, 2021 USD ($)	Nov. 30, 2021 USD ($)	May 31, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 1,999,241			$ 4,032,690
Value of building sold		$ 5,100,000
Proceeds from sale of building, net	4,753,724
Gain on sale of property and equipment	$ 4,598,095
Assets Held for Sale
Property, Plant and Equipment [Line Items]
Estimated useful lives	25 years
Industrial buildings \| ft²	35,050
Assets Held for Sale \| 2765 NW Nicolai Street, Portland, Oregon
Property, Plant and Equipment [Line Items]
Industrial buildings \| ft²	11,667
Investor
Property, Plant and Equipment [Line Items]
Commitment for additional capital			$ 1,300,000