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LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Allowance for Loan Losses Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for loan losses:
Beginning balance	$ 12,859	$ 11,484	$ 9,263
Provision for loan losses	2,250	2,850	3,640
Loans charged-off	(918)	(2,458)	(1,762)
Recoveries	460	983	343
Ending balance	14,651	12,859	11,484
Allowance ending balance:
Individually evaluated for impairment				$ 493	$ 134	$ 253
Collectively evaluated for impairment				14,158	12,725	11,231
Total Loans	12,859	11,484	9,263	14,651	12,859	11,484
Loans:
Individually evaluated for impairment				11,356	6,340	6,318
Collectively evaluated for impairment				1,648,179	1,353,204	1,237,607
Total Loans				1,659,535	1,359,544	1,243,925
Commercial and industrial
Allowance for loan losses:
Beginning balance	1,581	1,592	1,878
Provision for loan losses	426	272	910
Loans charged-off	(367)	(1,080)	(1,213)
Recoveries	111	797	17
Ending balance	1,751	1,581	1,592
Allowance ending balance:
Individually evaluated for impairment				64	17	64
Collectively evaluated for impairment				1,687	1,564	1,528
Total Loans	1,581	1,592	1,878	1,751	1,581	1,592
Loans:
Individually evaluated for impairment				1,022	463	231
Collectively evaluated for impairment				260,757	197,045	223,481
Total Loans				261,779	197,508	223,712
Construction and development
Allowance for loan losses:
Beginning balance	1,724	1,161	1,004
Provision for loan losses	196	563	162
Loans charged-off	0	0	(9)
Recoveries	0	0	4
Ending balance	1,920	1,724	1,161
Allowance ending balance:
Individually evaluated for impairment				4	0	0
Collectively evaluated for impairment				1,916	1,724	1,161
Total Loans	1,724	1,161	1,004	1,920	1,724	1,161
Loans:
Individually evaluated for impairment				1,250	0	1,825
Collectively evaluated for impairment				236,253	196,774	127,806
Total Loans				237,503	196,774	129,631
Commercial real estate
Allowance for loan losses:
Beginning balance	4,585	3,264	2,106
Provision for loan losses	1,472	1,405	1,158
Loans charged-off	(33)	(84)	0
Recoveries	1	0	0
Ending balance	6,025	4,585	3,264
Allowance ending balance:
Individually evaluated for impairment				341	27	0
Collectively evaluated for impairment				5,684	4,558	3,264
Total Loans	4,585	3,264	2,106	6,025	4,585	3,264
Loans:
Individually evaluated for impairment				7,153	4,258	1,196
Collectively evaluated for impairment				575,366	413,879	366,881
Total Loans				582,519	418,137	368,077
Farmland
Allowance for loan losses:
Beginning balance	523	482	400
Provision for loan losses	120	41	82
Loans charged-off	0	0	0
Recoveries	0	0	0
Ending balance	643	523	482
Allowance ending balance:
Individually evaluated for impairment				78	85	47
Collectively evaluated for impairment				565	438	435
Total Loans	523	482	400	643	523	482
Loans:
Individually evaluated for impairment				140	163	258
Collectively evaluated for impairment				67,705	58,860	62,108
Total Loans				67,845	59,023	62,366
1-4 family residential
Allowance for loan losses:
Beginning balance	3,022	3,960	2,839
Provision for loan losses	(196)	(418)	1,117
Loans charged-off	(93)	(543)	(71)
Recoveries	135	23	75
Ending balance	2,868	3,022	3,960
Allowance ending balance:
Individually evaluated for impairment				6	5	108
Collectively evaluated for impairment				2,862	3,017	3,852
Total Loans	3,022	3,960	2,839	2,868	3,022	3,960
Loans:
Individually evaluated for impairment				1,383	842	2,588
Collectively evaluated for impairment				391,684	373,529	359,077
Total Loans				393,067	374,371	361,665
Multi-family residential
Allowance for loan losses:
Beginning balance	629	281	325
Provision for loan losses	2	348	(44)
Loans charged-off	0	0	0
Recoveries	0	0	0
Ending balance	631	629	281
Allowance ending balance:
Individually evaluated for impairment				0	0	0
Collectively evaluated for impairment				631	629	281
Total Loans	629	281	325	631	629	281
Loans:
Individually evaluated for impairment				0	217	5
Collectively evaluated for impairment				38,386	36,357	26,074
Total Loans				38,386	36,574	26,079
Consumer
Allowance for loan losses:
Beginning balance	602	585	562
Provision for loan losses	127	253	171
Loans charged-off	(254)	(344)	(269)
Recoveries	90	108	121
Ending balance	565	602	585
Allowance ending balance:
Individually evaluated for impairment				0	0	34
Collectively evaluated for impairment				565	602	551
Total Loans	602	585	562	565	602	585
Loans:
Individually evaluated for impairment				0	0	200
Collectively evaluated for impairment				54,777	51,267	52,977
Total Loans				54,777	51,267	53,177
Agricultural
Allowance for loan losses:
Beginning balance	187	153	138
Provision for loan losses	(12)	276	15
Loans charged-off	(2)	(242)	0
Recoveries	65	0	0
Ending balance	238	187	153
Allowance ending balance:
Individually evaluated for impairment				0	0	0
Collectively evaluated for impairment				238	187	153
Total Loans	187	153	138	238	187	153
Loans:
Individually evaluated for impairment				408	397	15
Collectively evaluated for impairment				22,869	25,199	18,886
Total Loans				23,277	25,596	18,901
Overdrafts
Allowance for loan losses:
Beginning balance	6	6	11
Provision for loan losses	115	110	69
Loans charged-off	(169)	(165)	(200)
Recoveries	58	55	126
Ending balance	10	6	6
Allowance ending balance:
Individually evaluated for impairment				0	0	0
Collectively evaluated for impairment				10	6	6
Total Loans	$ 6	$ 6	$ 11	10	6	6
Loans:
Individually evaluated for impairment				0	0	0
Collectively evaluated for impairment				382	294	317
Total Loans				$ 382	$ 294	$ 317

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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 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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