LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loans held for investment by years of origination) (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	$ 77,066
2020	188,700
2019	41,870
2018	32,998
2017	12,834
Prior	21,765
Revolving Loans	38,586
Total	413,819
Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	14,429
2020	80,577
2019	31,776
2018	6,301
2017	1,570
Prior	0
Revolving Loans	3,451
Total	138,104
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	37,039
2020	163,186
2019	109,780
2018	130,354
2017	76,295
Prior	127,786
Revolving Loans	24,718
Total	669,158
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	42,692
2020	93,693
2019	61,300
2018	41,302
2017	38,520
Prior	82,134
Revolving Loans	6,290
Total	365,931
Real Estate - Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	39
2020	62
2019	358
2018	238
2017	767
Prior	2,247
Revolving Loans	198,388
Total	202,099
Real Estate - Home Equity [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	39
2020	62
2019	358
2018	238
2017	767
Prior	2,247
Revolving Loans	197,926
Total	201,637
Real Estate - Home Equity [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans	462
Total	462
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	30,721
2020	97,478
2019	61,593
2018	44,131
2017	20,304
Prior	9,534
Revolving Loans	4,855
Total	268,616
Consumer [Member] \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	30,721
2020	97,423
2019	61,532
2018	44,126
2017	20,292
Prior	9,502
Revolving Loans	4,855
Total	268,451
Consumer [Member] \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	55
2019	61
2018	5
2017	12
Prior	32
Revolving Loans	0
Total	165
Pass [Member] \| Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	77,066
2020	188,688
2019	41,681
2018	32,674
2017	12,792
Prior	21,622
Revolving Loans	38,528
Total	413,051
Pass [Member] \| Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	13,786
2020	80,577
2019	29,221
2018	6,301
2017	1,570
Prior	0
Revolving Loans	3,451
Total	134,906
Pass [Member] \| Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	35,435
2020	158,436
2019	100,143
2018	115,971
2017	69,848
Prior	111,707
Revolving Loans	24,321
Total	615,861
Pass [Member] \| Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	42,559
2020	92,152
2019	58,624
2018	39,575
2017	37,006
Prior	78,360
Revolving Loans	6,290
Total	354,566
Special Mention [Member] \| Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	0
2019	189
2018	39
2017	4
Prior	55
Revolving Loans	0
Total	287
Special Mention [Member] \| Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	643
2020	0
2019	2,376
2018	0
2017	0
Prior	0
Revolving Loans	0
Total	3,019
Special Mention [Member] \| Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	4,161
2019	6,040
2018	14,296
2017	4,618
Prior	13,143
Revolving Loans	397
Total	42,655
Special Mention [Member] \| Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	139
2019	23
2018	124
2017	173
Prior	535
Revolving Loans	0
Total	994
Substandard [Member] \| Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	12
2019	0
2018	285
2017	38
Prior	88
Revolving Loans	58
Total	481
Substandard [Member] \| Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	0
2020	0
2019	179
2018	0
2017	0
Prior	0
Revolving Loans	0
Total	179
Substandard [Member] \| Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	1,604
2020	589
2019	3,597
2018	87
2017	1,829
Prior	2,936
Revolving Loans	0
Total	10,642
Substandard [Member] \| Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2021	133
2020	1,402
2019	2,653
2018	1,603
2017	1,341
Prior	3,239
Revolving Loans	0
Total	$ 10,371

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Amount of financing receivable originated in current fiscal year.

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

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