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Leases (Narrative) (Details) - USD ($)	6 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Rent	$ 5,985,000
Executive Chairman
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Related party lease payments made	333,000	$ 329,000
Rent	$ 685,000

X

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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+ References

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Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
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