FINANCIAL INSTRUMENTS AND CREDIT RISK CONCENTRATIONS (Narrative) (Details)	12 Months Ended
Jul. 31, 2020	Jul. 31, 2019
Four Customers [Member] \| Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk	54.97%	68.51%
Three Customers [Member] \| Rental Income [Member]
Concentration Risk [Line Items]
Concentration risk	43.65%	44.47%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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