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Certificates of Deposit and Marketable Securities (Tables)
 3 Months Ended
Aug. 31, 2023
Certificates of Deposit and Marketable Securities [Abstract]  
Schedule of Major Categories of Assets Measured at Fair Value on a Recurring Basis The following are the major categories of assets measured at fair value on a recurring basis as of August 31, 2023, and May 31, 2023 using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2) and significant unobservable inputs (Level 3):
August 31, 2023  Level 1   Level 2   Level 3   Total 
Certificates of Deposit  $745,000   $
            -
   $
          -
   $745,000 
Equity Securities   28,112    
-
    
-
    28,112 
   $773,112   $
-
   $
-
   $773,112 
May 31, 2023   Level 1    Level 2    Level 3    Total 
Certificates of Deposit  $490,000   $
    -
   $
   -
   $490,000 
Equity Securities   25,152    
-
    
-
    25,152 
   $515,152   $
-
   $
-
   $515,152 
Schedule of Marketable Securities The Company’s certificates of deposit and marketable securities at August 31, 2023 and May 31, 2023, are summarized as follows:
August 31, 2023  Amortized
Cost		   Gross
Unrealized
Holding
Gains		   Gross
Unrealized
Holding
Losses		   Recorded
Value 		 
Equity Securities  $16,866   $11,246   $
                -
   $28,112 
Certificates of Deposit   745,000    
-
    
-
    745,000 
   $761,866   $11,246   $
-
   $773,112 
May 31, 2023  Amortized
Cost		   Gross
Unrealized
Holding
Gains		   Gross
Unrealized
Holding
Losses		   Recorded
Value		 
Equity Securities  $16,866   $8,286   $
                   -
   $25,152 
Certificates of Deposit   490,000    
-
    
-
    490,000 
   $506,866   $8,286   $
-
   $515,152