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Fair Value Measurement (Details) - Schedule of reconciliation of the beginning and ending balances for Level 3 warrant liability - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Schedule of reconciliation of the beginning and ending balances for Level 3 warrant liability [Abstract]
Balance at the beginning of the period	$ 1,105
Changes in fair value	435		(2,469)
Balance at end of the period	$ 1,540		$ 1,105

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

No definition available.

+ Details

Name:	mvst_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityValue
Namespace Prefix:	mvst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	mvst_ScheduleOfReconciliationOfTheBeginningAndEndingBalancesForLevel3WarrantLiabilityAbstract
Namespace Prefix:	mvst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration