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Investments in Trading Securities (Details) - USD ($)	3 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Decrease in fair value	$ 20,004	$ 339,374

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- Definition

Amount of Decrease in fair value, amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	atif_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration