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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, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Allowance for loan losses:
Beginning balance			$ 12,859	$ 11,484	$ 11,484
Provision for loan losses	$ 650	$ 800	1,250	1,450	2,850
Loans charged-off			(317)	(550)	(2,458)
Recoveries			98	141	983
Ending balance	13,890	12,525	13,890	12,525	12,859
Allowance ending balance:
Individually evaluated for impairment						$ 345	$ 134	$ 733
Collectively evaluated for impairment						13,545	12,725	11,792
Ending balance	13,890	12,525	12,859	11,484	11,484	13,890	12,859	12,525
Loans:
Individually evaluated for impairment						9,759	6,340	9,043
Collectively evaluated for impairment						1,583,715	1,353,204	1,287,800
Ending balance						1,593,474	1,359,544	1,296,843
Commercial and industrial
Allowance for loan losses:
Beginning balance			1,581	1,592	1,592
Provision for loan losses			210	464	272
Loans charged-off			(51)	(48)	(1,080)
Recoveries			2	0	797
Ending balance	1,742	2,008	1,742	2,008	1,581
Allowance ending balance:
Individually evaluated for impairment						209	17	246
Collectively evaluated for impairment						1,533	1,564	1,762
Ending balance	1,742	2,008	1,581	1,592	1,592	1,742	1,581	2,008
Loans:
Individually evaluated for impairment						1,076	463	1,174
Collectively evaluated for impairment						233,320	197,045	216,323
Ending balance						234,396	197,508	217,497
Construction and development
Allowance for loan losses:
Beginning balance			1,724	1,161	1,161
Provision for loan losses			(82)	393	563
Loans charged-off			0	0	0
Recoveries			0	0	0
Ending balance	1,642	1,554	1,642	1,554	1,724
Allowance ending balance:
Individually evaluated for impairment						0	0	0
Collectively evaluated for impairment						1,642	1,724	1,554
Ending balance	1,642	1,554	1,724	1,161	1,161	1,642	1,724	1,554
Loans:
Individually evaluated for impairment						0	0	0
Collectively evaluated for impairment						211,745	196,774	177,600
Ending balance						211,745	196,774	177,600
Commercial real estate
Allowance for loan losses:
Beginning balance			4,585	3,264	3,264
Provision for loan losses			1,004	284	1,405
Loans charged-off			(33)	(84)	(84)
Recoveries			0	0	0
Ending balance	5,556	3,464	5,556	3,464	4,585
Allowance ending balance:
Individually evaluated for impairment						49	27	31
Collectively evaluated for impairment						5,507	4,558	3,433
Ending balance	5,556	3,464	4,585	3,264	3,264	5,556	4,585	3,464
Loans:
Individually evaluated for impairment						6,530	4,258	3,751
Collectively evaluated for impairment						563,918	413,879	374,971
Ending balance						570,448	418,137	378,722
Farmland
Allowance for loan losses:
Beginning balance			523	482	482
Provision for loan losses			125	59	41
Loans charged-off			0	0	0
Recoveries			0	0	0
Ending balance	648	541	648	541	523
Allowance ending balance:
Individually evaluated for impairment						78	85	92
Collectively evaluated for impairment						570	438	449
Ending balance	648	541	523	482	482	648	523	541
Loans:
Individually evaluated for impairment						222	163	170
Collectively evaluated for impairment						68,050	58,860	63,669
Ending balance						68,272	59,023	63,839
1-4 family residential
Allowance for loan losses:
Beginning balance			3,022	3,960	3,960
Provision for loan losses			(227)	(69)	(418)
Loans charged-off			(13)	(186)	(543)
Recoveries			50	21	23
Ending balance	2,832	3,726	2,832	3,726	3,022
Allowance ending balance:
Individually evaluated for impairment						9	5	139
Collectively evaluated for impairment						2,823	3,017	3,587
Ending balance	2,832	3,726	3,022	3,960	3,960	2,832	3,022	3,726
Loans:
Individually evaluated for impairment						1,438	842	2,726
Collectively evaluated for impairment						391,502	373,529	353,731
Ending balance						392,940	374,371	356,457
Multi-family residential
Allowance for loan losses:
Beginning balance			629	281	281
Provision for loan losses			69	(12)	348
Loans charged-off			0	0	0
Recoveries			0	0	0
Ending balance	698	269	698	269	629
Allowance ending balance:
Individually evaluated for impairment						0	0	0
Collectively evaluated for impairment						698	629	269
Ending balance	698	269	629	281	281	698	629	269
Loans:
Individually evaluated for impairment						0	217	241
Collectively evaluated for impairment						39,023	36,357	28,592
Ending balance						39,023	36,574	28,833
Consumer
Allowance for loan losses:
Beginning balance			602	585	585
Provision for loan losses			37	66	253
Loans charged-off			(143)	(158)	(344)
Recoveries			26	92	108
Ending balance	522	585	522	585	602
Allowance ending balance:
Individually evaluated for impairment						0	0	0
Collectively evaluated for impairment						522	602	585
Ending balance	522	585	602	585	585	522	602	585
Loans:
Individually evaluated for impairment						0	0	192
Collectively evaluated for impairment						52,949	51,267	51,485
Ending balance						52,949	51,267	51,677
Agricultural
Allowance for loan losses:
Beginning balance			187	153	153
Provision for loan losses			52	222	276
Loans charged-off			(1)	(4)	(242)
Recoveries			0	0	0
Ending balance	238	371	238	371	187
Allowance ending balance:
Individually evaluated for impairment						0	0	225
Collectively evaluated for impairment						238	187	146
Ending balance	238	371	187	153	153	238	187	371
Loans:
Individually evaluated for impairment						493	397	789
Collectively evaluated for impairment						22,869	25,199	21,065
Ending balance						23,362	25,596	21,854
Overdrafts
Allowance for loan losses:
Beginning balance			6	6	6
Provision for loan losses			62	43	110
Loans charged-off			(76)	(70)	(165)
Recoveries			20	28	55
Ending balance	12	7	12	7	6
Allowance ending balance:
Individually evaluated for impairment						0	0	0
Collectively evaluated for impairment						12	6	7
Ending balance	$ 12	$ 7	$ 6	$ 6	$ 6	12	6	7
Loans:
Individually evaluated for impairment						0	0	0
Collectively evaluated for impairment						339	294	364
Ending balance						$ 339	$ 294	$ 364

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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