GEOGRAPHIC INFORMATION (Details)	6 Months Ended
Nov. 30, 2022 USD ($)	May 31, 2022 USD ($)
GEOGRAPHIC INFORMATION (Details) [Line Items]
Number of Operating Segments	1
Inventory, Gross	$ 2,835,000	$ 3,262,000
Property, Plant and Equipment, Net	236,719	214,487
MEXICO
GEOGRAPHIC INFORMATION (Details) [Line Items]
Inventory, Gross	685,000	621,000
Property, Plant and Equipment, Net	$ 19,000	$ 17,000

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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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant