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ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) - Accounts payable and accrued expense balances - USD ($)
May 31, 2018
May 31, 2017
Accounts payable and accrued expense balances [Abstract]    
Accounts payable $ 655,599 $ 336,430
Deferred rent 31,357 15,570
Total $ 686,956 $ 352,000