No definition available.

Name:	atif_BusinessCombinationDetailsLineItems
Namespace Prefix:	atif_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of outstanding debt owed to the company by the acquiree.

+ References

No definition available.

+ Details

Name:	atif_DebtConversionAndSharePurchaseAgreementOutstandingDebtOwedByAcquiree
Namespace Prefix:	atif_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of shares issued to the company by the acquiree, in exchange for satisfaction of acquiree's outstanding debt and issuance of company's shares, pursuant to Debt Conversion and Share Purchase Agreement.

+ References

No definition available.

+ Details

Name:	atif_DebtConversionAndSharePurchaseAgreementStockIssuedByAcquireeInExchangeForSatisfactionOfDebtAndIssuanceOfCompanySShares
Namespace Prefix:	atif_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests to be acquired in the business combination.

+ References

No definition available.

+ Details

Name:	atif_PercentageOfVotingEquityInterestsToBeAcquiredInBusinessCombination.
Namespace Prefix:	atif_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Reverse stock split.

+ References

No definition available.

+ Details

Name:	atif_ReverseStockSplit
Namespace Prefix:	atif_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares assigned by the acquiree in exchange for shares of the company, pursuant to Share Exchange Arrangement.

+ References

No definition available.

+ Details

Name:	atif_ShareExchangeArrangementNumberOfSharesAssignedByAcquiree
Namespace Prefix:	atif_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares of the company exchanged, pursuant to Share Exchange Arrangement.

+ References

No definition available.

+ Details

Name:	atif_ShareExchangeArrangementNumberOfSharesExchanged
Namespace Prefix:	atif_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

+ Details

Name:	us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

+ Details

Name:	us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477

+ Details

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Reduction in the number of shares during the period as a result of a reverse stock split.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_OwnershipAxis=atif_LeapingGroupCo.LtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=atif_ATIFMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=atif_BusinessCombinationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Business Combination (Details) - USD ($)	1 Months Ended		12 Months Ended
Business Combination (Details) - USD ($)	Aug. 30, 2021	Apr. 22, 2020	Jul. 31, 2021	Jan. 29, 2021	Apr. 30, 2020	Apr. 08, 2020
Business Combination (Details) [Line Items]
Reverse stock split	1,428,000
LGC [Member]
Business Combination (Details) [Line Items]
Total purchase consideration (in Dollars)		$ 22,920,000
Cash consideration (in Dollars)		$ 1,850,000
Reverse stock split	1,111,110
Ordinary shares issued		3,934,029	2,800,000
Outstanding debt owed to the company (in Dollars)			$ 1,851,000
Reverse stock split	560,000
Number of shares assigned by the acquiree			6,283,001
Number of shares exchanged			7,140,002
Equity interest held by noncontrolling interest, percentage			48.80%
ATIF [Member]
Business Combination (Details) [Line Items]
Reverse stock split	1,988,000
Business Combination [Member] \| LGC [Member]
Business Combination (Details) [Line Items]
Equity interest to be acquired, percentage						51.20%
Equity interest acquired, percentage		51.20%		51.20%	51.20%
Total purchase consideration (in Dollars)		$ 22,920,000
Shares issued as consideration		9,940,002
Fair value of shares issued (in Dollars)		$ 21,070,000.00
Trade Names [Member] \| LGC [Member]
Business Combination (Details) [Line Items]
Intangible assets (trade name and customer relationship) (in Dollars)			$ 1,300,000
Definite lives (in years)			9 years 7 months 6 days
Customer Relationships [Member] \| LGC [Member]
Business Combination (Details) [Line Items]
Intangible assets (trade name and customer relationship) (in Dollars)			$ 6,700,000
Definite lives (in years)			6 years 2 months 12 days