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Stockholders' Equity - Summary of Warrants Activity (Details) - $ / shares	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Number of Common Warrants [Member]
Class of Warrant or Right [Line Items]
Beginning Balance	8,104,615	8,427,508
Issued	0
Exercised		0
Ending Balance	8,104,615	8,427,508
Number of Pre-funded Warrants [Member]
Class of Warrant or Right [Line Items]
Beginning Balance	38,543,577	40,492,923
Issued	0
Exercised		(5,244,444)
Ending Balance	38,543,577	35,248,479
Common Warrant and Pre-funded Warrants [Member]
Class of Warrant or Right [Line Items]
Weighted-Average Exercise Price, Issued		$ 0
Weighted-Average Exercise Price, Exercised		$ 0.001

X

- Definition

Class of warrant or right excercised.

+ References

No definition available.

+ Details

Name:	annx_ClassOfWarrantOrRightExcercised
Namespace Prefix:	annx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Class of warrant or right issued

+ References

No definition available.

+ Details

Name:	annx_ClassOfWarrantOrRightIssued
Namespace Prefix:	annx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Class of warrant or right weighted average exercise price of warrant exercised.

+ References

No definition available.

+ Details

Name:	annx_ClassOfWarrantOrRightWeightedAverageExercisePriceOfWarrantExercised
Namespace Prefix:	annx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Class of Warrant or right, weighted-average exercise price of warrant issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	annx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- 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

No definition available.

+ Details

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

X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=annx_PrefundedWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=annx_CommonWarrantAndPreFundedWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: