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ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables)
12 Months Ended
May 31, 2021
Payables and Accruals [Abstract]  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

2021

2020

Accounts payable

 

$

431,621

 

$

833,412

Accrued expense

 

151,759

 

153,299

Total

 

$

583,380

 

$

986,711