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OPERATING LEASES (Schedule of Additional Information Related to Leases) (Details) - USD ($) | 12 Months Ended
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Jul. 31, 2021 | Jul. 31, 2020
Other information: |  |
Operating cash flows from operating leases | $ 2,024,246 | $ 1,931,545

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- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities that result from activities that generate operating income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
Name: | us-gaap_IncreaseDecreaseInOperatingLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeaseCostAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration