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REGULATORY RESTRICTION ON DIVIDENDS (Details)	12 Months Ended
	Dec. 31, 2021
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Number of preceding years, the retained net profits of which is considered for dividend payment	2 years

X

- Definition

Represents the number of preceding years, the retained net profits of which is combined with the current year's profits used to determine the amount of dividends declared in any calendar year.

+ References

No definition available.

+ Details

Name:	mvbf_DividendRestrictionsNumberOfPrecedingYearsRetainedNetProfits
Namespace Prefix:	mvbf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfRestrictionsOnDividendsLoansAndAdvancesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration