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GEOGRAPHIC INFORMATION (Details) - MEXICO	9 Months Ended
	Feb. 28, 2022 USD ($)	May 31, 2021 USD ($)
GEOGRAPHIC INFORMATION (Details) [Line Items]
Number of Reportable Segments	1
Inventory, Gross	$ 142,000	$ 803,000
Property, Plant and Equipment, Net	$ 19,000	$ 25,000

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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