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Acquired Intangible Assets, Net (Details) - Schedule of annual amortization expense $ in Thousands | Dec. 31, 2020 USD ($)
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Schedule of annual amortization expense [Abstract] |
2021 | $ 394
2022 | 233
2023 | 233
2024 | 233
2025 | 233
Thereafter | 953
Total | $ 2,279

X
- Definition Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | mvst_FiniteLivedIntangibleAssetAmortizationExpenseAfterYearFive
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Finite lived intangible assets amortization expense next nine months. + References No definition available. + Details
Name: | mvst_FiniteLivedIntangibleAssetAmortizationExpenseNextNineMonths
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | mvst_FiniteLivedIntangibleAssetAmortizationExpenseYearThree
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | mvst_FiniteLivedIntangibleAssetAmortizationExpenseYearTwo
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
Name: | mvst_FiniteLivedIntangibleAssetNet
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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