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Certificates of Deposit and Marketable Securities (Tables)
9 Months Ended
Feb. 29, 2020
Investments, Debt and Equity Securities [Abstract]  
Schedule of assets measured at fair value on recurring basis

February 29, 2020  Level 1   Level 2   Level 3   Total 
Equity Securities  $44,416   $    -   $-   $44,416 
   $44,416   $-   $    -   $44,416 

 

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
February 29, 2020  Amortized
Cost
   Gross
Unrealized
Holding
Gains
   Gross
Unrealized
Holding
Losses
   Recorded
Value
 
Current                
Equity Securities  $16,866   $27,550   $       -   $44,416 
   $16,866   $27,550   $-   $44,416 

 

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