Contract term.

No definition available.

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- Definition

Funding of option extends estimated completion of contract term.

+ References

No definition available.

+ Details

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Namespace Prefix:	antx_
Data Type:	xbrli:durationItemType
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- Definition

Government award

+ References

No definition available.

+ Details

Name:	antx_GovernmentAward
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Government committed contract funding amount.

+ References

No definition available.

+ Details

Name:	antx_GovernmentCommittedContractFundingAmount
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Government contract funding increased amount.

+ References

No definition available.

+ Details

Name:	antx_GovernmentContractFundingIncreasedAmount
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Government contract funding reduced amount.

+ References

No definition available.

+ Details

Name:	antx_GovernmentContractFundingReducedAmount
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Government contract income recognized.

+ References

No definition available.

+ Details

Name:	antx_GovernmentContractIncomeRecognized
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Grant award amount.

+ References

No definition available.

+ Details

Name:	antx_GrantAwardAmount
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Grant funding in advance amount.

+ References

No definition available.

+ Details

Name:	antx_GrantFundingInAdvanceAmount
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Grant income recognized.

+ References

No definition available.

+ Details

Name:	antx_GrantIncomeRecognized
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of available options under government contract.

+ References

No definition available.

+ Details

Name:	antx_NumberOfAvailableOptionsUnderGovernmentContract
Namespace Prefix:	antx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of option exercised for government contract.

+ References

No definition available.

+ Details

Name:	antx_NumberOfOptionExercisedForGovernmentContract
Namespace Prefix:	antx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of option period for funding from government contract.

+ References

No definition available.

+ Details

Name:	antx_NumberOfOptionPeriodForFundingFromGovernmentContract
Namespace Prefix:	antx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds from government contract.

+ References

No definition available.

+ Details

Name:	antx_ProceedsFromGovernmentContract
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Proceeds from grant funding.

+ References

No definition available.

+ Details

Name:	antx_ProceedsFromGrantFunding
Namespace Prefix:	antx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483507/832-10-50-3

+ Details

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

- Definition

The amount of receivables that are derived from government contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 912
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478345/912-310-45-1

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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Funding Arrangements - Additional Information (Details) $ in Thousands	1 Months Ended									3 Months Ended		31 Months Ended
	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Apr. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	May 31, 2024 USD ($) Option	Apr. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jul. 31, 2023 USD ($) Option	Sep. 30, 2022 USD ($) Option	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Government Assistance [Line Items]
Maximum amount eligible to receive under cost-reimbursement contract award		$ 18,300							$ 17,800
Other liabilities current										$ 567			$ 1,229
NIAID Contract
Government Assistance [Line Items]
Maximum amount eligible to receive under cost-reimbursement contract award		18,300							$ 17,800
Government committed contract funding amount		9,300
Number of option period for funding from government contract									48 months
Government contract income recognized										$ 200	$ 0
Government contract receivable													500
Number of option exercised for government contract \| Option					2			2
Number of available options under government contract \| Option									7
Government contract fund increased amount			$ 500		$ 3,800			$ 700
Government contract funding reduced amount		$ 9,000
Funding of option extends estimated completion of contract term										29 months
Proceeds from government contract										$ 9,300		$ 8,800
Contract term										18 months
NIAID Contract \| Prepaid Expenses and Other Current Assets
Government Assistance [Line Items]
Government contract receivable										$ 700
BMGF Grant
Government Assistance [Line Items]
Grant award amount	$ 1,900						$ 1,800
Grant income recognized										500
Other liabilities current										600			$ 1,200
Gates Foundation Grant
Government Assistance [Line Items]
Grant award amount				$ 2,000
Grant funding in advance amount				$ 1,100			$ 1,000
Amount received in grant funding						$ 800
2024 BMGF Grant
Government Assistance [Line Items]
Grant income recognized										$ 0	$ 400