v3.21.2
SCHEDULE OF CONCENTRATION OF RISK (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]
3 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Customer A [Member]    
Product Information [Line Items]    
Concentration risk percentage 15.00% 23.00%
Customer B [Member]    
Product Information [Line Items]    
Concentration risk percentage 9.00% 21.00%
Customer C [Member]    
Product Information [Line Items]    
Concentration risk percentage 8.00% (0.00%)
Customers [Member]    
Product Information [Line Items]    
Concentration risk percentage 32.00% 44.00%