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Bonds Payable (Details) - Schedule of bonds payable - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Long – term bonds payable |  |  |
Long-term bonds payable, Total | $ 73,147 | $ 73,147 | $ 73,147
Huzhou Saiyuan [Member] |  |  |
Long – term bonds payable |  |  |
Long-term bonds payable, Total | $ 73,147 | $ 73,147 | $ 73,147

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- Definition Total of long term bonds payable. + References No definition available. + Details
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Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | mvst_LongTermBondsPayableAbstract0
Namespace Prefix: | mvst_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mvst_HuzhouSaiyuanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |