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12. SEGMENT INFORMATION (Details Narrative)
3 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Five Largest Customers    
Customers accounted for 10% or more of total revenues 78.00% 99.00%
Customer A    
Customers accounted for 10% or more of total revenues 21.00% 54.00%
Customer B    
Customers accounted for 10% or more of total revenues 18.00% 35.00%
Customer C    
Customers accounted for 10% or more of total revenues 17.00%  
Customer D    
Customers accounted for 10% or more of total revenues 14.00%