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Note 4 - Deconsolidation Due to Loss of Control (Details Textual) € in Millions		1 Months Ended
	May 19, 2023 EUR (€)	Feb. 28, 2023
Restructuring and Related Cost, Number of Positions Eliminated		250
Net Deconsolidation Gain and Reversal of Parental Guarantee Provision	€ 62.6

X

- Definition

Amount of net deconsolidation gain and reversal of parental guarantee provision.

+ References

No definition available.

+ Details

Name:	sev_NetDeconsolidationGainAndReversalOfParentalGuaranteeProvision
Namespace Prefix:	sev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ References

No definition available.

+ Details

Name:	us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration