OPERATING SEGMENTS Narrative (Details)	12 Months Ended
Jul. 31, 2020 USD ($) segment
Segment Reporting Information
Number of Reportable Segments \| segment	2
Foreign subsidiaries
Segment Reporting Information
Cash held at foreign banks \| $	$ 3,038,000

The amount of deposits held by branches of foreign institutions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65207-112826

Name:	us-gaap_ForeignFinancialInstitutionsActualDeposits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant