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Condensed Statements of Redeemable Convertible Preferred Stock and Stockholders' Deficit (Parenthetical) - Series A redeemable convertible preferred stock - USD ($) $ in Thousands | 3 Months Ended
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Jun. 30, 2021 | Mar. 31, 2021
Share price | $ 1.893 | $ 1.893
Issuance costs | $ 9 | $ 13

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- Definition The amount of stock issuance costs. + References No definition available. + Details
Name: | avte_StockIssuanceCosts
Namespace Prefix: | avte_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_StatementClassOfStockAxis=avte_SeriesRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |