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Income Taxes (Details) - USD ($)	6 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Income Tax Disclosure [Abstract]
Recognized income tax provision	$ 0	$ 0
Loss before income tax	131,397	9,851
Deferred tax asset valuation allowances	$ 31,700,000	$ 31,700,000

X

- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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- Definition

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

+ References

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- Definition

Amount before tax of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation.

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