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Accounts Receivable (Details) - Schedule of allowance for doubtful accounts - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Schedule of allowance for doubtful accounts [Abstract]
Balance at beginning of the period	$ 4,743	$ 4,534	$ 5,047	$ 5,537
Charge to expenses	457	2	261	(861)
Write off	(415)		(546)
Exchange difference	11	173	34	33
Balance at end of the period	$ 4,796	$ 4,709	$ 4,796	$ 4,709

X

- Definition

Accounts receivable Write off.

+ References

No definition available.

+ Details

Name:	mvst_AccountsReceivableWriteOff
Namespace Prefix:	mvst_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	mvst_AllowanceForDoubtfulAccountReceivable
Namespace Prefix:	mvst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Charge to expenses.

+ References

No definition available.

+ Details

Name:	mvst_ChargeToExpenses
Namespace Prefix:	mvst_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	mvst_ScheduleOfAllowanceForDoubtfulAccountsAbstract
Namespace Prefix:	mvst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase (decrease) in allowance for credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration