SUBORDINATED DEBENTURES - Narrative (Details)	9 Months Ended
	Sep. 30, 2017 USD ($)
Subordinated Borrowing [Line Items]
Debentures, period over which company may defer interest payments	5 years
Junior subordinated debt owed to trusts	$ 11,300,000
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Junior subordinated debt owed to trusts	11,341,000
F&M Bancshares. Inc. | Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debt instrument, face amount	11,300,000.0
Borrowed funds	9,300,000
Debt instrument, unamortized discount	$ 2,500,000