Material accounting policies - Reverse Stock Split (Details)	Sep. 20, 2024
Material accounting policies
Stock split conversion ratio	0.1

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

No definition available.

Name:	evtl_IfrsStockholdersEquityNoteStockSplitConversionRatio
Namespace Prefix:	evtl_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration