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CASH FLOW INFORMATION (Schedule of Supplemental Disclosure) (Details) - USD ($) | 12 Months Ended
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Jul. 31, 2021 | Jul. 31, 2020
Cash Flow Information |  |
Interest paid, net of capitalized interest of $115,415 (2021), and $112,074 (2020) | $ 272,070 | $ 153,107
Income tax (refunded) | (23,040) | (23,041)
Capitalized interest | 115,415 | 112,074
Non-cash information |  |
Recognition of operating lease right-of-use assets | 27,100,000 | 39,464,411
Recognition of operating lease liabilities | 17,900,000 | 30,222,981
Mortgage refinance |  | $ 5,255,920

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