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Accounts Payable and Accrued Expenses (Details) - Accounts payable and accrued expense - USD ($)
Aug. 31, 2019
May 31, 2019
Accounts payable and accrued expense [Abstract]    
Accounts payable $ 943,875 $ 999,593
Deferred rent 37,972
Total $ 943,875 $ 1,037,565