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Defined Contribution Plans (Details Narrative) - USD ($) $ in Millions		12 Months Ended
	May 27, 2021	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Employment period contributions, description		first five years
Defined Contribution Plan, Cost		$ 1.0	$ 0.8	$ 1.0
Common Class B [Member]
Stock Issued During Period, Shares, New Issues	35,839
Stock Issued During Period, Value, New Issues	$ 1.0

X

- Definition

Employment period contributions description.

+ References

No definition available.

+ Details

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X

- Definition

Amount of cost for defined contribution plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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X

- Definition

Number of new stock issued during the period.

+ References

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-Publisher FASB
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-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

+ References

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