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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
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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
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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