LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Allowance for Loan Losses [Roll Forward]
Beginning Balance	$ 17,273	$ 16,559	$ 16,533	$ 15,580
Charge-offs	(1)	(1,358)	(95)	(2,041)
Recoveries	46	140	280	302
Provisions (Credits)	600	500	1,200	2,000
Ending Balance	17,918	15,841	17,918	15,841
Allowances for loan losses, Individually evaluated for impairment					$ 342		$ 402
Allowances for loan losses, Collectively evaluated for impairment					17,576		15,439
Allowance for loan losses	17,273	16,559	16,533	15,580	17,918	$ 16,533	15,841
Loans, Individually evaluated for impairment					23,034		26,924
Loans, Collectively evaluated for impairment					1,156,815		926,422
Total Loans					1,179,849	1,011,717	953,346
Commercial
Allowance for Loan Losses [Roll Forward]
Beginning Balance	539	1,202	684	1,188
Charge-offs	0	0	0	(134)
Recoveries	10	3	40	45
Provisions (Credits)	298	(549)	123	(443)
Ending Balance	847	656	847	656
Allowances for loan losses, Individually evaluated for impairment					14		0
Allowances for loan losses, Collectively evaluated for impairment					833		656
Allowance for loan losses	539	1,202	684	1,188	847	684	656
Loans, Individually evaluated for impairment					14		18
Loans, Collectively evaluated for impairment					37,675		28,028
Total Loans					37,689	38,972	28,046
Real Estate | Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Beginning Balance	1,998	2,258	2,068	2,764
Charge-offs	0	(687)	(27)	(687)
Recoveries	0	0	0	0
Provisions (Credits)	30	454	(13)	(52)
Ending Balance	2,028	2,025	2,028	2,025
Allowances for loan losses, Individually evaluated for impairment					71		124
Allowances for loan losses, Collectively evaluated for impairment					1,957		1,901
Allowance for loan losses	1,998	2,258	2,068	2,764	2,028	2,068	2,025
Loans, Individually evaluated for impairment					5,690		6,146
Loans, Collectively evaluated for impairment					128,746		81,679
Total Loans					134,436		87,825
Real Estate | Real Estate Construction | Construction
Allowance for Loan Losses [Roll Forward]
Total Loans					134,436	95,625
Real Estate | Real Estate Mortgage | Commercial – Owner Occupied
Allowance for Loan Losses [Roll Forward]
Beginning Balance	1,961	1,835	2,017	2,082
Charge-offs	0	0	0	(430)
Recoveries	12	25	153	94
Provisions (Credits)	(12)	(33)	(209)	81
Ending Balance	1,961	1,827	1,961	1,827
Allowances for loan losses, Individually evaluated for impairment					49		55
Allowances for loan losses, Collectively evaluated for impairment					1,912		1,772
Allowance for loan losses	1,961	1,835	2,017	2,082	1,961	2,017	1,827
Loans, Individually evaluated for impairment					3,320		3,881
Loans, Collectively evaluated for impairment					127,171		110,265
Total Loans					130,491	126,250	114,146
Real Estate | Real Estate Mortgage | Commercial – Non-owner Occupied
Allowance for Loan Losses [Roll Forward]
Beginning Balance	5,260	4,915	4,630	3,889
Charge-offs	0	(621)	(49)	(622)
Recoveries	6	102	61	148
Provisions (Credits)	(314)	225	310	1,206
Ending Balance	4,952	4,621	4,952	4,621
Allowances for loan losses, Individually evaluated for impairment					194		208
Allowances for loan losses, Collectively evaluated for impairment					4,758		4,413
Allowance for loan losses	5,260	4,915	4,630	3,889	4,952	4,630	4,621
Loans, Individually evaluated for impairment					11,716		12,523
Loans, Collectively evaluated for impairment					279,984		262,791
Total Loans					291,700	270,472	275,314
Real Estate | Real Estate Mortgage | Residential – 1 to 4 Family
Allowance for Loan Losses [Roll Forward]
Beginning Balance	6,666	5,422	6,277	4,916
Charge-offs	0	0	0	(118)
Recoveries	18	10	26	15
Provisions (Credits)	575	386	956	1,005
Ending Balance	7,259	5,818	7,259	5,818
Allowances for loan losses, Individually evaluated for impairment					14		15
Allowances for loan losses, Collectively evaluated for impairment					7,245		5,803
Allowance for loan losses	6,666	5,422	6,277	4,916	7,259	6,277	5,818
Loans, Individually evaluated for impairment					2,294		4,339
Loans, Collectively evaluated for impairment					516,267		377,128
Total Loans					518,561	416,317	381,467
Real Estate | Real Estate Mortgage | Residential – Multifamily
Allowance for Loan Losses [Roll Forward]
Beginning Balance	619	699	627	505
Charge-offs	0	(50)	0	(50)
Recoveries	0	0	0	0
Provisions (Credits)	32	18	24	212
Ending Balance	651	667	651	667
Allowances for loan losses, Individually evaluated for impairment					0		0
Allowances for loan losses, Collectively evaluated for impairment					651		667
Allowance for loan losses	619	699	627	505	651	627	667
Loans, Individually evaluated for impairment					0		0
Loans, Collectively evaluated for impairment					52,038		50,532
Total Loans					52,038	47,832	50,532
Consumer
Allowance for Loan Losses [Roll Forward]
Beginning Balance	230	228	230	236
Charge-offs	(1)	0	(19)	0
Recoveries	0	0	0	0
Provisions (Credits)	(9)	(1)	9	(9)
Ending Balance	220	227	220	227
Allowances for loan losses, Individually evaluated for impairment					0		0
Allowances for loan losses, Collectively evaluated for impairment					220		227
Allowance for loan losses	$ 230	$ 228	$ 230	$ 236	220	230	227
Loans, Individually evaluated for impairment					0		17
Loans, Collectively evaluated for impairment					14,934		15,999
Total Loans					$ 14,934	$ 16,249	$ 16,016