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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Allowance For Uncollectible Receivables) (Details) - USD ($) | 12 Months Ended
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Jul. 31, 2021 | Jul. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Beginning balance | $ 82,000 |
Ending Balance | 318,000 | $ 82,000
Allowance for Uncollectible Accounts Receivable [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Beginning balance | 82,000 |
Charge-offs | 254,000 | 423,232
Recoveries | (18,000) | (91,840)
Rent Abatements reclassified to reduce rental income |  | (249,392)
Ending Balance | 318,000 | 82,000
Bad Debt Expense [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Beginning balance | 255,060 |
Charge-offs | 236,000 | 596,292
Recoveries |  | (91,840)
Rent Abatements reclassified to reduce rental income |  | (249,392)
Ending Balance | $ 236,000 | $ 255,060

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