LOANS - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 1,314,066	$ 1,254,117	$ 1,087,461
Real estate mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,085,228		848,104
Real estate mortgages | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	165,400	174,480
Real estate mortgages | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	154,143	147,490
Real estate mortgages | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	765,685	716,541
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	219,761	206,897	230,157
Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	9,077	8,709	$ 9,200
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,274,599	1,215,708
Pass | Real estate mortgages | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	160,243	168,751
Pass | Real estate mortgages | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	149,011	142,782
Pass | Real estate mortgages | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	739,916	691,863
Pass | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	216,375	203,630
Pass | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	9,054	8,682
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	23,182	23,294
Special Mention | Real estate mortgages | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	388	388
Special Mention | Real estate mortgages | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,841	3,554
Special Mention | Real estate mortgages | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	15,830	16,371
Special Mention | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,103	2,960
Special Mention | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	20	21
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	16,061	14,881
Substandard | Real estate mortgages | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	4,769	5,341
Substandard | Real estate mortgages | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,291	1,154
Substandard | Real estate mortgages | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	9,939	8,307
Substandard | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	59	73
Substandard | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3	6
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	224	234
Doubtful | Real estate mortgages | Construction and development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Doubtful | Real estate mortgages | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Doubtful | Real estate mortgages | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Doubtful | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	224	234
Doubtful | Consumer and other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 0	$ 0