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Summary of Significant Accounting Policies (Details 3)
12 Months Ended
May 31, 2017
Equipment [Member]  
Summary of depreciation and amortization of equipment and leasehold improvements useful lives  
Depreciation and amortization of equipment and leasehold improvements, useful lives 3 years
Furniture and Fixtures [Member]  
Summary of depreciation and amortization of equipment and leasehold improvements useful lives  
Depreciation and amortization of equipment and leasehold improvements, useful lives 3 years
Automobiles [Member]  
Summary of depreciation and amortization of equipment and leasehold improvements useful lives  
Depreciation and amortization of equipment and leasehold improvements, useful lives 3 years
Leasehold improvements [Member]  
Summary of depreciation and amortization of equipment and leasehold improvements useful lives  
Depreciation and amortization of equipment and leasehold improvements, useful lives Lesser of lease term or useful life