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SCHEDULE OF GEOGRAPHIC INFORMATION (Details) - USD ($)
 3 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues from sales to unaffiliated customers total $ 1,713,000 $ 1,637,000
Asia [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues from sales to unaffiliated customers total 1,026,000 814,000
Europe [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues from sales to unaffiliated customers total 327,000 552,000
North America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues from sales to unaffiliated customers total 355,000 268,000
South America [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues from sales to unaffiliated customers total $ 5,000 $ 3,000