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Income Taxes (Details Narrative) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Apr. 30, 2021	Apr. 30, 2021
Income Tax Disclosure [Abstract]
Change in valuation allowance	$ 24.0	$ 24.0

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- References

No definition available.

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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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