LOANS AND ALLOWANCE FOR LOAN LOSSES - Risk category of loans by class of loans (Details 8) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Accounts Notes And Loans Receivable [Line Items]
Total loans		$ 914,815	$ 831,544	[1]
Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans		141,969	141,521
Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]	335,219	282,592
Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans		78,352	67,832
Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		115,590	124,985
Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]	242,769	213,248
Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		916	1,366
Classified/Criticized
Accounts Notes And Loans Receivable [Line Items]
Total loans		13,931	22,780
Classified/Criticized | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans		6,302	11,528
Classified/Criticized | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]	131	136
Classified/Criticized | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans			552
Classified/Criticized | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		6,540	9,498
Classified/Criticized | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]	958	1,066
Classified/Criticized | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans
Pass
Accounts Notes And Loans Receivable [Line Items]
Total loans		900,884	808,764
Pass | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans		135,667	129,993
Pass | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]	335,088	282,456
Pass | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans		78,352	67,280
Pass | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		109,050	115,487
Pass | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]	241,811	212,182
Pass | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		916	1,366
Covered loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1]	29,561	34,373
Covered loans | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1]
Covered loans | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1],[2]
Covered loans | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1]
Covered loans | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1]
Covered loans | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1],[3]	29,561	34,373
Covered loans | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[1]
Covered loans | Classified/Criticized
Accounts Notes And Loans Receivable [Line Items]
Total loans	[4]	958	1,066
Covered loans | Classified/Criticized | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[4]
Covered loans | Classified/Criticized | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2],[4]
Covered loans | Classified/Criticized | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans	[4]
Covered loans | Classified/Criticized | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[4]
Covered loans | Classified/Criticized | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3],[4]	958	1,066
Covered loans | Classified/Criticized | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[4]
Covered loans | Pass
Accounts Notes And Loans Receivable [Line Items]
Total loans		28,603	33,307
Covered loans | Pass | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans
Covered loans | Pass | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]
Covered loans | Pass | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans
Covered loans | Pass | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans
Covered loans | Pass | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]	28,603	33,307
Covered loans | Pass | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans
Non-covered Loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		885,254	797,171
Non-covered Loans | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans		141,969	141,521
Non-covered Loans | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]	335,219	282,592
Non-covered Loans | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans		78,352	67,832
Non-covered Loans | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		115,590	124,985
Non-covered Loans | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]	213,208	178,875
Non-covered Loans | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		916	1,366
Non-covered Loans | Special Mention
Accounts Notes And Loans Receivable [Line Items]
Total loans		28	8,232
Non-covered Loans | Special Mention | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans			3,666
Non-covered Loans | Special Mention | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]
Non-covered Loans | Special Mention | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans			552
Non-covered Loans | Special Mention | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		28	4,014
Non-covered Loans | Special Mention | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]
Non-covered Loans | Special Mention | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans
Non-covered Loans | Substandard
Accounts Notes And Loans Receivable [Line Items]
Total loans	[5]	12,945	13,482
Non-covered Loans | Substandard | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[5]	6,302	7,862
Non-covered Loans | Substandard | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2],[5]	131	136
Non-covered Loans | Substandard | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans	[5]
Non-covered Loans | Substandard | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[5]	6,512	5,484
Non-covered Loans | Substandard | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3],[5]
Non-covered Loans | Substandard | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans	[5]
Non-covered Loans | Pass
Accounts Notes And Loans Receivable [Line Items]
Total loans		872,281	775,457
Non-covered Loans | Pass | Commercial real estate - owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans		135,667	129,993
Non-covered Loans | Pass | Commercial real estate - non-owner occupied
Accounts Notes And Loans Receivable [Line Items]
Total loans	[2]	335,088	282,456
Non-covered Loans | Pass | Construction and land development
Accounts Notes And Loans Receivable [Line Items]
Total loans		78,352	67,280
Non-covered Loans | Pass | Commercial loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		109,050	115,487
Non-covered Loans | Pass | Residential 1-4 family
Accounts Notes And Loans Receivable [Line Items]
Total loans	[3]	213,208	178,875
Non-covered Loans | Pass | Other consumer loans
Accounts Notes And Loans Receivable [Line Items]
Total loans		$ 916	$ 1,366

[1] Covered Loans were acquired in the Greater Atlantic transaction and are covered under an FDIC loss-share agreement. The agreement covering non-single family loans expired in December 2014.

[2] Includes loans secured by farmland and multi-family residential loans.

[3] Includes home equity lines of credit.

[4] Credit quality is enhanced by a loss sharing agreement with the FDIC in the covered portfolio. The same credit quality indicators used in the non-covered portfolio are combined.

[5] Includes SBA guarantees of $1.7 million and $3.5 million as of September 30, 2016 and December 31, 2015, respectively.