XML 162 R152.htm IDEA: XBRL DOCUMENT
v3.21.4

Fair Value Measurement (Details) - Schedule of reconciliation of the beginning and ending balances for assets and liabilities measured at fair value on a recurring basis $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2021 USD ($) shares
Schedule of reconciliation of the beginning and ending balances for assets and liabilities measured at fair value on a recurring basis [Abstract] |
Beginning Balance |
Issuance of convertible notes (in Shares) | shares | 57,500
Changes in fair value of convertible notes | $ 9,861
Conversion as of Merger (in Shares) | shares | (67,361)
Ending Balance |

X
- Definition Changes in fair value of convertible notes. + References No definition available. + Details
Name: | mvst_ChangesInFairValueOfConvertibleNotes
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Conversion as of business combination. + References No definition available. + Details
Name: | mvst_ConversionAsOfBusinessCombinationinShares
Namespace Prefix: | mvst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Convertible notes measured at fair value. + References No definition available. + Details
Name: | mvst_ConvertibleNotesMeasuredatFairValue
Namespace Prefix: | mvst_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Issuance of convertible notes. + References No definition available. + Details
Name: | mvst_IssuanceOfConvertibleNotes
Namespace Prefix: | mvst_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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