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Accounts Payable and Accrued Expenses (Tables)
9 Months Ended
Feb. 28, 2018
Payables and Accruals [Abstract]  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

     

February 28,

2018

 May 31,

 2017

Accounts payable and accrued expenses          

$

534,474

 

$

336,430

Deferred rent

 

28,024

 

15,570

Total              

$

562,498

 

$

352,000