v3.22.2.2
Marketable Securities (Tables)
3 Months Ended
Oct. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of provisions of fair value measurements
   Fair value measurements at reporting date 
Description  October 31,
2022
   Level 1   Level 2   Level 3   July 31,
2022
   Level 1   Level 2   Level 3 
Assets:                                
Marketable securities  $2,573,866   $2,573,866   $
   —
   $
   —
   $2,761,069   $2,761,069   $
    —
   $
      —
 

 

Schedule of provisions of fair value measurements
   October 31, 2022   July 31, 2022 
   Cost   Gross
Unrealized
Gains
   Gross
Unrealized
Losses
   Fair
Value
   Cost   Gross
Unrealized
Gains
   Gross
Unrealized
Losses
   Fair
Value
 
Mutual funds  $528,976   $212,164   $
      –
   $741,140   $528,976   $269,400   $
       –
   $798,376 
Equity securities   1,065,593    767,133    
    1,832,726    1,065,593    897,100    
    1,962,693 
   $1,594,569   $979,297   $
   $2,573,866   $1,594,569   $1,166,500   $
   $2,761,069 

 

Schedule of investment income
   Three Months Ended
October 31
 
   2022   2021 
Interest income  $15   $
 
Dividend income   8,782    6,767 
Total  $8,797   $6,767