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Concentrations (Details Narrative) - USD ($)
12 Months Ended
May 31, 2016
May 31, 2015
Purchases from customers $ 1,605,000 $ 1,582,000
Sales Revenue, Net [Member] | Two Customers [Member]    
Concentration risk percentage 56.00%  
Sales Revenue, Net [Member] | Customer One [Member]    
Concentration risk percentage 41.00%  
Sales Revenue, Net [Member] | Customer Two [Member]    
Concentration risk percentage 15.00%  
Sales Revenue, Net [Member] | One Customer [Member]    
Concentration risk percentage   51.00%