XML 93 R81.htm IDEA: XBRL DOCUMENT v3.22.1

Trade and other payables (Details) $ in Millions	Dec. 31, 2021 USD ($)
Trade and other payables [Abstract]
Executive severance payable	$ 1.2

X

- Definition

Amount of obligations incurred for severance payable within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

Name:	adn_ExecutiveSeverancePayable
Namespace Prefix:	adn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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