Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	May. 12, 2016
Document And Entity Information
Entity Registrant Name	F&M BANK CORP
Entity Central Index Key	0000740806
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer	No
Is Entity a Voluntary Filer	No
Is Entity's Reporting Status Current	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		3,285,691
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2016