LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio Summarized by Aging Categories of Performing Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 25,066	$ 10,958
Past Due	2,599	802
90+ (still accruing) Days Past Due	1,661	57
Non- Accrual	0	0
Total Loans	27,665	11,760
30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	554	631
60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,059
60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	384	114
Commercial real estate \| Owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	160,522	125,887
Past Due	0	66
90+ (still accruing) Days Past Due	0	0
Non- Accrual	1,706	1,841
Total Loans	162,228	127,794
Commercial real estate \| Owner occupied \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	8,005	1,784
Past Due	39	72
90+ (still accruing) Days Past Due	39	0
Non- Accrual	0	0
Total Loans	8,044	1,856
Commercial real estate \| Owner occupied \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	66
Commercial real estate \| Owner occupied \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Owner occupied \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Owner occupied \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	72
Commercial real estate \| Non-owner occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	297,509	252,144
Past Due	95	0
90+ (still accruing) Days Past Due	0	0
Non- Accrual	0	0
Total Loans	297,604	252,144
Commercial real estate \| Non-owner occupied \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	605	650
Past Due	780	0
90+ (still accruing) Days Past Due	780	0
Non- Accrual	0	0
Total Loans	1,385	650
Commercial real estate \| Non-owner occupied \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	95	0
Commercial real estate \| Non-owner occupied \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Non-owner occupied \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Non-owner occupied \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	92,280	78,085
Past Due	250	0
90+ (still accruing) Days Past Due	0	0
Non- Accrual	114	131
Total Loans	92,644	78,216
Commercial real estate \| Multi-family \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	698	717
Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Non- Accrual	0	0
Total Loans	698	717
Commercial real estate \| Multi-family \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	250	0
Commercial real estate \| Multi-family \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Multi-family \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Multi-family \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Non-owner occupied residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	117,729	99,268
Past Due	298	255
90+ (still accruing) Days Past Due	0	0
Non- Accrual	270	309
Total Loans	118,297	99,832
Commercial real estate \| Non-owner occupied residential \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,997	535
Past Due	70	0
90+ (still accruing) Days Past Due	70	0
Non- Accrual	0	0
Total Loans	3,067	535
Commercial real estate \| Non-owner occupied residential \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	298	226
Commercial real estate \| Non-owner occupied residential \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate \| Non-owner occupied residential \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	29
Commercial real estate \| Non-owner occupied residential \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Acquisition and development \| 1-4 family residential construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	12,801	7,385
Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Non- Accrual	0	0
Total Loans	12,801	7,385
Acquisition and development \| 1-4 family residential construction \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Acquisition and development \| 1-4 family residential construction \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Acquisition and development \| Commercial and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	57,002	41,822
Past Due	25	37
90+ (still accruing) Days Past Due	0	0
Non- Accrual	0	0
Total Loans	57,027	41,859
Acquisition and development \| Commercial and land development \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current		192
Past Due		0
90+ (still accruing) Days Past Due		0
Non- Accrual		0
Total Loans		192
Acquisition and development \| Commercial and land development \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	37
Acquisition and development \| Commercial and land development \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0
Acquisition and development \| Commercial and land development \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	25	0
Acquisition and development \| Commercial and land development \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		0
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	214,816	154,988
Past Due	352	516
90+ (still accruing) Days Past Due	0	0
Non- Accrual	253	286
Total Loans	215,421	155,790
Commercial and industrial \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,781	4,943
Past Due	349	231
90+ (still accruing) Days Past Due	55	0
Non- Accrual	0	0
Total Loans	4,130	5,174
Commercial and industrial \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	254	411
Commercial and industrial \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	121	231
Commercial and industrial \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	98	105
Commercial and industrial \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	173	0
Municipal
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	48,358	50,982
Past Due	0	0
90+ (still accruing) Days Past Due	0	0
Non- Accrual	0	0
Total Loans	48,358	50,982
Municipal \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Municipal \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential mortgage \| First lien
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	350,054	228,714
Past Due	2,521	2,326
90+ (still accruing) Days Past Due	0	0
Non- Accrual	1,340	1,808
Total Loans	353,915	232,848
Residential mortgage \| First lien \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	8,745	1,971
Past Due	1,286	477
90+ (still accruing) Days Past Due	717	53
Non- Accrual	0	0
Total Loans	10,031	2,448
Residential mortgage \| First lien \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,826	1,592
Residential mortgage \| First lien \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	365	382
Residential mortgage \| First lien \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	695	734
Residential mortgage \| First lien \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	204	42
Residential mortgage \| Home equity - term
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	15,951	11,487
Past Due	5	683
90+ (still accruing) Days Past Due	0	0
Non- Accrual	12	16
Total Loans	15,968	12,186
Residential mortgage \| Home equity - term \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	16	17
Past Due	5	5
90+ (still accruing) Days Past Due	0	0
Non- Accrual	0	0
Total Loans	21	22
Residential mortgage \| Home equity - term \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	5	678
Residential mortgage \| Home equity - term \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	5
Residential mortgage \| Home equity - term \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	5
Residential mortgage \| Home equity - term \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	5	0
Residential mortgage \| Home equity - lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	156,226	142,394
Past Due	735	448
90+ (still accruing) Days Past Due	0	0
Non- Accrual	684	774
Total Loans	157,645	143,616
Residential mortgage \| Home equity - lines of credit \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	498	420
Residential mortgage \| Home equity - lines of credit \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	237	28
Installment and other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	41,880	33,135
Past Due	209	110
90+ (still accruing) Days Past Due	0	0
Non- Accrual	8	0
Total Loans	42,097	33,245
Installment and other loans \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	219	149
Past Due	70	17
90+ (still accruing) Days Past Due	0	4
Non- Accrual	0	0
Total Loans	289	166
Installment and other loans \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	162	66
Installment and other loans \| 30 to 59 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	68	13
Installment and other loans \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	47	44
Installment and other loans \| 60 to 89 Days Past Due \| Loans Acquired with Credit Deterioration
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2	0
Loans Excluding Acquired PCI
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,565,128	1,226,291
Past Due	4,490	4,441
90+ (still accruing) Days Past Due	0	0
Non- Accrual	4,387	5,165
Total Loans	1,574,005	1,235,897
Loans Excluding Acquired PCI \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,388	3,496
Loans Excluding Acquired PCI \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,102	945
Total Portfolio
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,590,194	1,237,249
Past Due	7,089	5,243
90+ (still accruing) Days Past Due	1,661	57
Non- Accrual	4,387	5,165
Total Loans	1,601,670	1,247,657
Total Portfolio \| 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,942	$ 4,127
Total Portfolio \| 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 1,486

LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio Summarized by Aging Categories of Performing Loans and Nonaccrual Loans (Details) - USD ($)
$ in Thousands