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DEFERRED CHARGES (Narrative) (Details) - USD ($) | 12 Months Ended
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Jul. 31, 2021 | Jul. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Amortization of deferred charges | $ 385,967 | $ 297,887
Weighted average life of current year additions to deferred charges | 14 years |

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- Definition The amount of amortization of deferred charges applied against earnings during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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