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Accounts Payable and Accrued Expenses (Details) - Accounts payable and accrued expense balances - USD ($)
Nov. 30, 2018
May 31, 2018
Accounts payable and accrued expense balances [Abstract]    
Accounts payable $ 764,762 $ 655,599
Deferred rent 35,708 31,357
Total $ 800,470 $ 686,956