LOANS - Aging of Recorded Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	$ 1,149,340	$ 1,033,733	$ 1,005,980
Nonaccrual	3,308	3,418
Real estate mortgages
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	941,811		758,489
Real estate mortgages | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	158,255	102,559
Nonaccrual	1,972	977
Real estate mortgages | Residential
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	135,862	152,212
Nonaccrual	339	857
Real estate mortgages | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	647,694	514,923
Nonaccrual	690	1,478
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	198,550	254,395	236,893
Nonaccrual	300	84
Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	8,979	9,644	$ 10,598
Nonaccrual	7	22
Current
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	1,142,886	1,026,474
Current | Real estate mortgages | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	156,283	101,375
Current | Real estate mortgages | Residential
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	134,687	150,837
Current | Real estate mortgages | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	645,148	512,208
Current | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	197,819	252,473
Current | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	8,949	9,581
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	3,146	3,841
Total Past Due | Real estate mortgages | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	207
Total Past Due | Real estate mortgages | Residential
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	836	518
Total Past Due | Real estate mortgages | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	1,856	1,237
Total Past Due | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	431	1,838
Total Past Due | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	23	41
30-59 Days
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	2,691	2,339
30-59 Days | Real estate mortgages | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	117
30-59 Days | Real estate mortgages | Residential
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	411	382
30-59 Days | Real estate mortgages | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	1,826	1,196
30-59 Days | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	431	626
30-59 Days | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	23	18
60-89 Days
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	455	1,411
60-89 Days | Real estate mortgages | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	90
60-89 Days | Real estate mortgages | Residential
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	425	94
60-89 Days | Real estate mortgages | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	30	0
60-89 Days | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	1,212
60-89 Days | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	15
90+ Days
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	91
90+ Days | Real estate mortgages | Construction and development
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0
90+ Days | Real estate mortgages | Residential
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	42
90+ Days | Real estate mortgages | Commercial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	41
90+ Days | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	0	0
90+ Days | Consumer and other
Financing Receivable, Past Due [Line Items]
Loans, net of unearned income	$ 0	$ 8