SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Narrative (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Jun. 30, 2016 USD ($)	Dec. 31, 2013 USD ($) subsidiary	Dec. 31, 2016 USD ($) segment office $ / shares	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2013	Dec. 31, 2012
Summary of Significant Accounting Policies [Line Items]
Number of subsidiaries merged into company | subsidiary		3
Loan indemnification reserve			$ 200	$ 150
Number of reportable segments | segment			3
Period past due for loans to be considered as delinquent			90 days
Minimum period loans are past due as condition for determining whether impaired			90 days
Total loans serviced for others			$ 190	956
Amortization taken on servicing asset			1,000	915	$ 574
Loans serviced			296,400	334,500
Goodwill		$ 17,779	18,480	18,480	17,779
Other real estate			414	239
Marketing expense			$ 1,253	1,352	1,137
Minimum | Building and Leasehold Improvements
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives			7 years
Minimum | Furniture, Fixtures And Equipment
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives			3 years
Maximum | Building and Leasehold Improvements
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives			40 years
Maximum | Furniture, Fixtures And Equipment
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives			10 years
MVB Mortgage
Summary of Significant Accounting Policies [Line Items]
Number of mortgage only offices | office			11
Subsidiary Bank
Summary of Significant Accounting Policies [Line Items]
FHLB stock			$ 5,800	8,600
FHLB stock par value (in dollars per share) | $ / shares			$ 100
Lender Service Provider, LLC
Summary of Significant Accounting Policies [Line Items]
Ownership interest						25.00%	50.00%
Discontinued Operations, Disposed of by Sale | USI Insurance Services
Summary of Significant Accounting Policies [Line Items]
Gain on sale of subsidiary	$ 6,900		$ 6,926	0	0
Core Deposit Intangible
Summary of Significant Accounting Policies [Line Items]
Useful life of intangible asset			10 years
Finite-lived intangible assets, net		$ 5	$ 744	$ 845	$ 1