LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Allowance for loan losses:
Balance, beginning of period	$ 9,642	$ 8,130	$ 9,454	$ 7,891
Provision	369	567	634	1,192
Charge-offs	(120)	(291)	(224)	(737)
Recoveries	33	45	60	105
Balance, end of period	9,642	8,130	9,454	7,891	$ 9,924	$ 9,454	$ 8,451
Ending allowance balance for loans individually evaluated for impairment					251		296
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					9,673		8,155
Loans receivable:
Balance of loans individually evaluated for impairment					3,200		3,288
Balance of loans acquired with deteriorated credit quality					4,328		7,604
Balance of loans collectively evaluated for impairment					1,535,780		1,289,419
Total Loans					1,543,308	1,400,825	1,300,311
Total mortgage loans on real estate
Loans receivable:
Total Loans					1,231,584	1,143,944
Total mortgage loans on real estate | Construction & Development
Allowance for loan losses:
Balance, beginning of period	1,094	974	1,038	945
Provision	34	58	89	81
Charge-offs	(51)	(16)	(51)	(16)
Recoveries	15	2	16	8
Balance, end of period	1,094	974	1,038	945	1,092	1,038	1,018
Ending allowance balance for loans individually evaluated for impairment					66		0
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					1,026		1,018
Loans receivable:
Balance of loans individually evaluated for impairment					346		230
Balance of loans acquired with deteriorated credit quality					0		52
Balance of loans collectively evaluated for impairment					166,886		165,113
Total Loans					167,232	157,946	165,395
Total mortgage loans on real estate | Farmland
Allowance for loan losses:
Balance, beginning of period	101	63	81	60
Provision	(4)	3	16	6
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	101	63	81	60	97	81	66
Ending allowance balance for loans individually evaluated for impairment					0		0
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					97		66
Loans receivable:
Balance of loans individually evaluated for impairment					0		0
Balance of loans acquired with deteriorated credit quality					2,264		2,264
Balance of loans collectively evaluated for impairment					22,939		17,880
Total Loans					25,203	21,356	20,144
Total mortgage loans on real estate | 1-4 Family
Allowance for loan losses:
Balance, beginning of period	1,511	1,283	1,465	1,287
Provision	(77)	81	(33)	81
Charge-offs	0	(28)	0	(35)
Recoveries	5	3	7	6
Balance, end of period	1,511	1,283	1,465	1,287	1,439	1,465	1,339
Ending allowance balance for loans individually evaluated for impairment					0		0
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					1,439		1,339
Loans receivable:
Balance of loans individually evaluated for impairment					1,312		1,248
Balance of loans acquired with deteriorated credit quality					472		1,194
Balance of loans collectively evaluated for impairment					303,728		277,893
Total Loans					305,512	287,137	280,335
Total mortgage loans on real estate | Multifamily
Allowance for loan losses:
Balance, beginning of period	380	359	331	332
Provision	(9)	(40)	40	(13)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	380	359	331	332	371	331	319
Ending allowance balance for loans individually evaluated for impairment					0		0
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					371		319
Loans receivable:
Balance of loans individually evaluated for impairment					0		0
Balance of loans acquired with deteriorated credit quality					0		820
Balance of loans collectively evaluated for impairment					56,081		48,018
Total Loans					56,081	50,501	48,838
Total mortgage loans on real estate | Commercial Real Estate
Allowance for loan losses:
Balance, beginning of period	4,226	3,608	4,182	3,599
Provision	53	209	97	218
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	4,226	3,608	4,182	3,599	4,279	4,182	3,817
Ending allowance balance for loans individually evaluated for impairment					0		0
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					4,279		3,817
Loans receivable:
Balance of loans individually evaluated for impairment					878		711
Balance of loans acquired with deteriorated credit quality					1,550		2,057
Balance of loans collectively evaluated for impairment					675,128		577,498
Total Loans					677,556	627,004	580,266
Commercial & Industrial
Allowance for loan losses:
Balance, beginning of period	1,673	935	1,641	693
Provision	424	246	445	765
Charge-offs	0	(141)	0	(451)
Recoveries	1	8	12	41
Balance, end of period	1,673	935	1,641	693	2,098	1,641	1,048
Ending allowance balance for loans individually evaluated for impairment					0		0
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					2,098		1,048
Loans receivable:
Balance of loans individually evaluated for impairment					6		89
Balance of loans acquired with deteriorated credit quality					0		1,217
Balance of loans collectively evaluated for impairment					276,896		144,248
Total Loans					276,902	210,924	145,554
Consumer
Allowance for loan losses:
Balance, beginning of period	657	908	716	975
Provision	(52)	10	(20)	54
Charge-offs	(69)	(106)	(173)	(235)
Recoveries	12	32	25	50
Balance, end of period	$ 657	$ 908	$ 716	$ 975	548	716	844
Ending allowance balance for loans individually evaluated for impairment					185		296
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					363		548
Loans receivable:
Balance of loans individually evaluated for impairment					658		1,010
Balance of loans acquired with deteriorated credit quality					42		0
Balance of loans collectively evaluated for impairment					34,122		58,769
Total Loans					$ 34,822	$ 45,957	$ 59,779