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Details	Feb. 18, 2021
Cover [Abstract]
Title of 12(b) Security	Common stock, $1.00 par value
Trading Symbol	MVBF
Security Exchange Name	NASDAQ

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Title of a 12(b) registered security.

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

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Name of the Exchange on which a security is registered.

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

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Trading symbol of an instrument as listed on an exchange.

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