LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Allowance for Loan Losses Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Allowance for loan losses:
Beginning balance			$ 11,484	$ 9,263	$ 9,263
Provision for loan losses	$ 800	$ 1,950	1,450	2,400	3,640
Loans charged-off			(550)	(189)	(1,762)
Recoveries			141	132	343
Ending balance	12,525	11,606	12,525	11,606	11,484
Allowance ending balance:
Individually evaluated for impairment	733	1,983	733	1,983	253
Collectively evaluated for impairment	11,792	9,623	11,792	9,623	11,231
Loans:
Individually evaluated for impairment	9,043	12,359	9,043	12,359	6,318
Collectively evaluated for impairment	1,287,800	1,172,802	1,287,800	1,172,802	1,238,817
Ending balance	1,296,843	1,185,161	1,296,843	1,185,161	1,245,135
Commercial and industrial
Allowance for loan losses:
Beginning balance			1,592	1,878	1,878
Provision for loan losses			464	1,201	910
Loans charged-off			(48)	(11)	(1,213)
Recoveries			0	13	17
Ending balance	2,008	3,081	2,008	3,081	1,592
Allowance ending balance:
Individually evaluated for impairment	246	1,773	246	1,773	64
Collectively evaluated for impairment	1,762	1,308	1,762	1,308	1,528
Loans:
Individually evaluated for impairment	1,174	8,476	1,174	8,476	231
Collectively evaluated for impairment	216,323	209,921	216,323	209,921	223,766
Ending balance	217,497	218,397	217,497	218,397	223,997
Construction and development
Allowance for loan losses:
Beginning balance			1,161	1,004	1,004
Provision for loan losses			393	35	162
Loans charged-off			0	0	(9)
Recoveries			0	4	4
Ending balance	1,554	1,043	1,554	1,043	1,161
Allowance ending balance:
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	1,554	1,043	1,554	1,043	1,161
Loans:
Individually evaluated for impairment	0	39	0	39	1,825
Collectively evaluated for impairment	177,600	108,659	177,600	108,659	127,541
Ending balance	177,600	108,698	177,600	108,698	129,366
Commercial real estate
Allowance for loan losses:
Beginning balance			3,264	2,106	2,106
Provision for loan losses			284	433	1,158
Loans charged-off			(84)	0	0
Recoveries			0	0	0
Ending balance	3,464	2,539	3,464	2,539	3,264
Allowance ending balance:
Individually evaluated for impairment	31	0	31	0	0
Collectively evaluated for impairment	3,433	2,539	3,433	2,539	3,264
Loans:
Individually evaluated for impairment	3,751	1,116	3,751	1,116	1,196
Collectively evaluated for impairment	374,971	346,316	374,971	346,316	366,460
Ending balance	378,722	347,432	378,722	347,432	367,656
Farmland
Allowance for loan losses:
Beginning balance			482	400	400
Provision for loan losses			59	112	82
Loans charged-off			0	0	0
Recoveries			0	0	0
Ending balance	541	512	541	512	482
Allowance ending balance:
Individually evaluated for impairment	92	47	92	47	47
Collectively evaluated for impairment	449	465	449	465	435
Loans:
Individually evaluated for impairment	170	302	170	302	258
Collectively evaluated for impairment	63,669	65,872	63,669	65,872	62,104
Ending balance	63,839	66,174	63,839	66,174	62,362
1-4 family residential
Allowance for loan losses:
Beginning balance			3,960	2,839	2,839
Provision for loan losses			(69)	512	1,117
Loans charged-off			(186)	(22)	(71)
Recoveries			21	0	75
Ending balance	3,726	3,329	3,726	3,329	3,960
Allowance ending balance:
Individually evaluated for impairment	139	93	139	93	108
Collectively evaluated for impairment	3,587	3,236	3,587	3,236	3,852
Loans:
Individually evaluated for impairment	2,726	2,168	2,726	2,168	2,588
Collectively evaluated for impairment	353,731	332,401	353,731	332,401	360,364
Ending balance	356,457	334,569	356,457	334,569	362,952
Multi-family residential
Allowance for loan losses:
Beginning balance			281	325	325
Provision for loan losses			(12)	58	(44)
Loans charged-off			0	0	0
Recoveries			0	0	0
Ending balance	269	383	269	383	281
Allowance ending balance:
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	269	383	269	383	281
Loans:
Individually evaluated for impairment	241	0	241	0	5
Collectively evaluated for impairment	28,592	36,860	28,592	36,860	26,074
Ending balance	28,833	36,860	28,833	36,860	26,079
Consumer
Allowance for loan losses:
Beginning balance			585	562	562
Provision for loan losses			66	17	171
Loans charged-off			(158)	(89)	(269)
Recoveries			92	77	121
Ending balance	585	567	585	567	585
Allowance ending balance:
Individually evaluated for impairment	0	70	0	70	34
Collectively evaluated for impairment	585	497	585	497	551
Loans:
Individually evaluated for impairment	192	200	192	200	200
Collectively evaluated for impairment	51,485	52,827	51,485	52,827	53,305
Ending balance	51,677	53,027	51,677	53,027	53,505
Agricultural
Allowance for loan losses:
Beginning balance			153	138	138
Provision for loan losses			222	(7)	15
Loans charged-off			(4)	0	0
Recoveries			0	0	0
Ending balance	371	131	371	131	153
Allowance ending balance:
Individually evaluated for impairment	225	0	225	0	0
Collectively evaluated for impairment	146	131	146	131	153
Loans:
Individually evaluated for impairment	789	58	789	58	15
Collectively evaluated for impairment	21,065	19,386	21,065	19,386	18,886
Ending balance	21,854	19,444	21,854	19,444	18,901
Overdrafts
Allowance for loan losses:
Beginning balance			6	11	11
Provision for loan losses			43	39	69
Loans charged-off			(70)	(67)	(200)
Recoveries			28	38	126
Ending balance	7	21	7	21	6
Allowance ending balance:
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	7	21	7	21	6
Loans:
Individually evaluated for impairment	0	0	0	0	0
Collectively evaluated for impairment	364	560	364	560	317
Ending balance	$ 364	$ 560	$ 364	$ 560	$ 317