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Land Use Rights, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Land Use Rights Net [Abstract] |  |  |
Estimated usage term period | 50 years |  |
Amortization expense | $ 303 | $ 302 | $ 316
Future amortization expenses, description | Future amortization expense is $302 per year for each of the next five years through December 31, 2025 and thereafter. |  |

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- Definition Amortization expenses account for the cost of long-term assets (like computers and vehicles) over the lifetime of their use. Also called depreciation expenses, they appear on a company's income statement. + References No definition available. + Details
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Period Type: | duration

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- Definition Estimated usage term period. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Amortization expense is the write-off of an intangible asset over its expected period of use, which reflects the consumption of the asset. This write-off results in the residual asset balance declining over time. The amount of this write-off appears in the income statement, usually within the "depreciation and amortization" line item. + References No definition available. + Details
Name: | mvst_FutureAmortizationExpenses
Namespace Prefix: | mvst_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | mvst_
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