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Short-term Investments
3 Months Ended
Jan. 30, 2021
Investments, Debt and Equity Securities [Abstract]  
Short-term Investments
 
Note
3 Short-term Investments
The following is a summary of short-term investments (available for sale):
 
   January 30, 2021 
   Cost   Gross
Unrealized
Gains
   Gross
Unrealized
Losses
   Estimated
Fair Value
 
Equity securities in a public company
  $ 167,930   $ 270,986   $ —     $ 438,916 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
   October 31, 2020 
   Cost   Gross
Unrealized
Gains
   Gross
Unrealized
Losses
   Estimated
Fair Value
 
Equity securities in a public company
  $ 167,930   $ 191,030   $ —     $ 358,960 
   
 
 
   
 
 
   
 
 
   
 
 
 
The fair values were estimated based on quoted market prices in active markets at each respective period end.