Annual report pursuant to Section 13 and 15(d)

ACCOUNTS RECEIVABLE (Details)

v3.20.2
ACCOUNTS RECEIVABLE (Details) - USD ($)
12 Months Ended
May 31, 2020
May 31, 2019
Receivables [Abstract]    
Accounts Receivable, after Allowance for Credit Loss, Current $ 161,409 $ 163,571
Accounts Receivable, Credit Loss Expense (Reversal) 108,392 $ 0
Accounts Receivable, Allowance for Credit Loss, Writeoff $ 101,512