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Certificates of Deposit and Marketable Securities (Tables)
3 Months Ended
Aug. 31, 2019
Investments, Debt and Equity Securities [Abstract]  
Schedule of assets measured at fair value on recurring basis
August 31, 2019  Level 1   Level 2   Level 3   Total 
Certificates of Deposit  $-   $245,000   $-   $245,000 
Equity Securities   37,928    -    -    37,928 
   $37,928   $245,000   $-   $282,928 

 

May 31, 2019  Level 1   Level 2   Level 3   Total 
Certificates of Deposit  $-   $492,000   $-   $492,000 
Equity Securities   35,232    -    -    35,232 
   $35,232   $492,000   $-   $527,232 
Schedule of certificates of deposit and marketable securities
August 31, 2019
Current
  Amortized
Cost
   Gross
Unrealized
Holding
Gains
   Gross
Unrealized
Holding
Losses
   Recorded
Value
 
Certificates of Deposit  $245,000   $-   $   -   $245,000 
Equity Securities   16,866    21,062    -    37,928 
   $261,866   $21,062   $-   $282,928 

 

May 31, 2019
Current
  Amortized
Cost
   Gross
Unrealized
Holding
Gains
   Gross
Unrealized
Holding
Losses
   Recorded
Value
 
Certificates of Deposit  $492,000   $-   $   -   $492,000 
Equity Securities   16,866    18,366    -    35,232 
   $508,866   $18,366   $-   $527,232