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Summary of Significant Accounting Policies (Details) - USD ($)
3 Months Ended 9 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Feb. 28, 2018
Feb. 28, 2017
May 31, 2017
Summary of Significant Accounting Policies (Textual)          
Net loss $ (112,910) $ (109,667) $ (340,937) $ (333,136)  
Net cash used in operations     (439,525) (235,273)  
Accumulated deficit (4,486,565)   (4,486,565)   $ (4,145,628)
Prepaid expenses and other current assets 3,000   3,000   18,089
Advances to major supplier $ 129,089   129,089   $ 16,135
Shipping costs     $ 27,628 $ 32,636  
Potentially dilutive securities outstanding, shares     430,000