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Concentrations (Details) - Sales Revenue, Net [Member]
6 Months Ended
Nov. 30, 2018
Nov. 30, 2017
Concentration risk percentage 45.00% 67.00%
Prep Cleanser And Shampoo [Member]    
Concentration risk percentage 18.00%  
Moisturizer And Conditioner [Member]    
Concentration risk percentage 13.00%  
Treatment Spray [Member]    
Concentration risk percentage 6.00%  
Cellular Complex [Member]    
Concentration risk percentage 6.00%  
Hair Masque [Member]    
Concentration risk percentage 1.00%  
Thickening Spray [Member]    
Concentration risk percentage 2.00%  
Introductory Kit [Member]    
Concentration risk percentage 21.00% 31.00%
Fragrance Shampoo And Conditioner [Member]    
Concentration risk percentage 15.00%  
Thermal Protect [Member]    
Concentration risk percentage 4.00%  
Thickening Spray [Member]    
Concentration risk percentage 4.00%  
Others [Member]    
Concentration risk percentage 10.00%  
Product [Member]    
Concentration risk percentage 100.00% 10.00%