LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES - Loans held for investment by years of origination) (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Commercial, Financial, Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	$ 231,817
2019	45,850
2018	36,183
2017	15,357
2016	13,371
Prior	10,129
Revolving	41,223
Total	393,930
Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	71,173
2019	53,062
2018	7,369
2017	1,592
2016	0
Prior	0
Revolving	2,635
Total	135,831
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	160,746
2019	102,486
2018	140,566
2017	81,405
2016	45,914
Prior	96,452
Revolving	20,824
Total	648,393
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	102,102
2019	68,717
2018	44,387
2017	41,217
2016	20,357
Prior	69,057
Revolving	6,706
Total	352,543
Real Estate - Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	1,385
2019	313
2018	244
2017	830
2016	183
Prior	2,238
Revolving	200,286
Total	205,479
Real Estate - Home Equity [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	1,385
2019	313
2018	244
2017	830
2016	183
Prior	2,238
Revolving	199,591
Total	204,784
Real Estate - Home Equity [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving	695
Total	695
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	105,612
2019	70,050
2018	51,562
2017	24,613
2016	10,647
Prior	2,539
Revolving	5,227
Total	270,250
Consumer [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	105,551
2019	69,941
2018	51,513
2017	24,613
2016	10,639
Prior	2,472
Revolving	5,227
Total	269,956
Consumer [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	61
2019	109
2018	49
2017	0
2016	8
Prior	67
Revolving	0
Total	294
Pass [Member] \| Commercial, Financial, Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	231,805
2019	45,651
2018	35,866
2017	15,212
2016	13,321
Prior	10,051
Revolving	41,214
Total	393,120
Pass [Member] \| Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	71,173
2019	51,634
2018	7,369
2017	1,592
2016	0
Prior	0
Revolving	2,635
Total	134,403
Pass [Member] \| Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	156,011
2019	93,424
2018	131,180
2017	78,474
2016	45,507
Prior	88,397
Revolving	19,933
Total	612,926
Pass [Member] \| Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	100,704
2019	66,893
2018	42,884
2017	40,205
2016	19,231
Prior	66,119
Revolving	6,706
Total	342,742
Special Mention [Member] \| Commercial, Financial, Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	4
2018	28
2017	0
2016	0
Prior	58
Revolving	0
Total	90
Special Mention [Member] \| Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	4,165
2019	8,932
2018	9,249
2017	244
2016	379
Prior	6,172
Revolving	397
Total	29,538
Special Mention [Member] \| Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	141
2019	24
2018	126
2017	175
2016	236
Prior	446
Revolving	0
Total	1,148
Substandard [Member] \| Commercial, Financial, Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	12
2019	195
2018	289
2017	145
2016	50
Prior	20
Revolving	9
Total	720
Substandard [Member] \| Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	1,428
2018	0
2017	0
2016	0
Prior	0
Revolving	0
Total	1,428
Substandard [Member] \| Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	570
2019	130
2018	137
2017	2,687
2016	28
Prior	1,883
Revolving	494
Total	5,929
Substandard [Member] \| Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2020	1,257
2019	1,800
2018	1,377
2017	837
2016	890
Prior	2,492
Revolving	0
Total	$ 8,653

Amount of financing receivable originated more than five years prior to current fiscal year.

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Amount of financing receivable originated four years prior to current fiscal year.

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Amount of financing receivable originated in current fiscal year.

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Amount of financing receivable originated in fiscal year prior to current fiscal year.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of financing receivable originated three years prior to current fiscal year.

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Amount of financing receivable originated two years prior to current fiscal year.

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Amount of financing receivable that can be withdrawn, repaid and redrawn.

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Amount, before allowance for credit loss, of financing receivable.

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