LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) contract borrower loan	Dec. 31, 2019 USD ($) contract
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Specific reserve allocations for TDR's	$ 600	$ 500
Troubled debt restructuring loans	$ 10,200	$ 7,700
Number of Contracts \| contract	9	5
Pre-Modification Outstanding Recorded Investment	$ 6,540	$ 582
Post-Modification Outstanding Recorded Investment	5,562	$ 656
Acquisition and development
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Loans defaulted under the restructured terms	$ 8,000
Number of restructured loans \| loan	7
Number of borrowers defaulted \| borrower	3
Restructured Equipment Loan
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Loans defaulted under the restructured terms	$ 5,200
Commercial
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	8	2
Pre-Modification Outstanding Recorded Investment	$ 6,453	$ 336
Post-Modification Outstanding Recorded Investment	$ 5,476	$ 333
Commercial \| Commercial business
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	6	2
Pre-Modification Outstanding Recorded Investment	$ 6,294	$ 336
Post-Modification Outstanding Recorded Investment	$ 5,326	$ 333
Commercial \| Commercial real estate
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	2	0
Pre-Modification Outstanding Recorded Investment	$ 159	$ 0
Post-Modification Outstanding Recorded Investment	$ 150	$ 0
Commercial \| Acquisition and development
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Residential
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	1	3
Pre-Modification Outstanding Recorded Investment	$ 87	$ 246
Post-Modification Outstanding Recorded Investment	$ 86	$ 323
Home equity
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	$ 0	$ 0
Consumer
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Number of Contracts \| contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	0	0
Accruing
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Troubled debt restructuring loans	$ 1,600	$ 4,400
Accruing \| Portfolio Risk \| Troubled Debt Restructured Loans
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Concentration risk, percentage	12.00%	46.00%
Commercial Borrower Two \| Acquisition and development
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Loans defaulted under the restructured terms	$ 2,200
Commercial Borrower One \| Acquisition and development
Details related to loans identified as Troubled Debt Restructurings (TDRs):
Loans defaulted under the restructured terms	$ 600

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