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Marketable Securities (Details) - Schedule of marketable securities - USD ($)
9 Months Ended
Feb. 28, 2022
May 31, 2021
Schedule of marketable securities [Abstract]    
Equity Securities, Amortized Cost $ 16,866 $ 16,866
Equity Securities, Gross Unrealized Holding Gains 21,294 28,830
Equity Securities, Gross Unrealized Holding Losses
Equity Securities, Recorded Value $ 38,160 $ 45,696