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Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Net Cash Provided by (Used in) Financing Activities [Abstract] |  |
Proceeds from the issuance of common stock including related party | $ 0 | $ 17,995

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- Definition Proceeds from the issuance of common stock including related party. + References No definition available. + Details
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Namespace Prefix: | annx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration