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Details	Jan. 31, 2023
Cover [Abstract]
Title of 12(b) Security	Common stock, $1.00 par value
Trading Symbol	MVBF
Security Exchange Name	NASDAQ
Current Fiscal Year End Date	--12-31

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End date of current fiscal year in the format --MM-DD.

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Title of a 12(b) registered security.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Exchange Act
-Number 240
-Section 12
-Subsection d1-1

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