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MARKETABLE SECURITIES (Schedule of Classified Marketable Securities) (Details) - USD ($) | Jul. 31, 2021 | Jul. 31, 2020
--- | --- | ---
Fair Value | $ 3,901,093 | $ 3,744,905
Gross Unrealized Gains | 1,560,263 | 1,120,074
Gross Unrealized Losses |  | 5,937
Cost | 2,340,830 | 2,630,768
Mutual Fund [Member] |  |
Fair Value | 1,604,841 | 1,374,557
Gross Unrealized Gains | 619,972 | 297,064
Gross Unrealized Losses |  |
Cost | 984,869 | 1,077,493
Corporate Equity Securities [Member] |  |
Fair Value | 2,296,252 | 2,370,348
Gross Unrealized Gains | 940,291 | 823,010
Gross Unrealized Losses |  | 5,937
Cost | $ 1,355,961 | $ 1,553,275

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