LOANS - Risk Grade by Loan Type (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 899,785	$ 1,183,426
Commercial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans	267,340	435,207
Real estate – construction
Financing Receivable, Recorded Investment [Line Items]
Loans	87,506	90,287
Real estate – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	368,449	454,051
Real estate – residential
Financing Receivable, Recorded Investment [Line Items]
Loans	132,435	146,751
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans	43,506	56,398
Lease financing receivable
Financing Receivable, Recorded Investment [Line Items]
Loans	549	732
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	822,634	1,065,611
Pass | Commercial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans	240,232	358,373
Pass | Real estate – construction
Financing Receivable, Recorded Investment [Line Items]
Loans	83,240	89,323
Pass | Real estate – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	329,213	416,925
Pass | Real estate – residential
Financing Receivable, Recorded Investment [Line Items]
Loans	125,984	144,250
Pass | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans	43,416	56,041
Pass | Lease financing receivable
Financing Receivable, Recorded Investment [Line Items]
Loans	549	699
Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans	49,604	15,343
Special mention | Commercial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans	20,259	9,687
Special mention | Real estate – construction
Financing Receivable, Recorded Investment [Line Items]
Loans	3,910	600
Special mention | Real estate – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	23,475	3,823
Special mention | Real estate – residential
Financing Receivable, Recorded Investment [Line Items]
Loans	1,955	1,233
Special mention | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans	5	0
Special mention | Lease financing receivable
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	27,547	102,472
Substandard | Commercial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans	6,849	67,147
Substandard | Real estate – construction
Financing Receivable, Recorded Investment [Line Items]
Loans	356	364
Substandard | Real estate – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	15,761	33,303
Substandard | Real estate – residential
Financing Receivable, Recorded Investment [Line Items]
Loans	4,496	1,268
Substandard | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans	85	357
Substandard | Lease financing receivable
Financing Receivable, Recorded Investment [Line Items]
Loans	0	33
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful | Commercial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful | Real estate – construction
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful | Real estate – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful | Real estate – residential
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Doubtful | Lease financing receivable
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 0	$ 0