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Condensed Statements of Operations and Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Condensed Statements of Operations and Comprehensive Loss
Research and development, related party	$ 39	$ 19	$ 54	$ 35
General and administrative, related party	$ 6	$ 8	$ 11	$ 15

X

- Definition

The amount of general and administrative expense, related party.

+ References

No definition available.

+ Details

Name:	avte_GeneralAndAdministrativeRelatedParty
Namespace Prefix:	avte_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of research and development expense, related party.

+ References

No definition available.

+ Details

Name:	avte_ResearchAndDevelopmentRelatedParty
Namespace Prefix:	avte_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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