LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loans held for investment by years of origination) (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	$ 40,753
2022	73,176
2021	32,614
2020	12,511
2019	8,960
Prior	9,213
Revolving Loans	44,477
Total	221,704
Commercial, Financial and Agricultural [Member] | Current-Period Gross Writeoffs [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	6
2022	149
2021	48
2020	31
2019	12
Prior	10
Revolving Loans	38
Total	294
Commercial, Financial and Agricultural [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	40,571
2022	72,609
2021	32,101
2020	12,418
2019	8,920
Prior	9,055
Revolving Loans	44,290
Total	219,964
Commercial, Financial and Agricultural [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	182
2022	461
2021	405
2020	11
2019	13
Prior	8
Revolving Loans	76
Total	1,156
Commercial, Financial and Agricultural [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	0
2022	106
2021	108
2020	82
2019	27
Prior	150
Revolving Loans	111
Total	584
Real Estate - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	77,323
2022	88,831
2021	23,612
2020	2,089
2019	189
Prior	0
Revolving Loans	5,482
Total	197,526
Real Estate - Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	76,755
2022	88,831
2021	22,609
2020	1,214
2019	189
Prior	0
Revolving Loans	5,482
Total	195,080
Real Estate - Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	568
2022	0
2021	625
2020	214
2019	0
Prior	0
Revolving Loans	0
Total	1,407
Real Estate - Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	0
2022	0
2021	378
2020	661
2019	0
Prior	0
Revolving Loans	0
Total	1,039
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	96,397
2022	279,030
2021	161,524
2020	109,960
2019	46,861
Prior	117,709
Revolving Loans	16,753
Total	828,234
Real Estate - Commercial Mortgage [Member] | Current-Period Gross Writeoffs [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	120
Revolving Loans	0
Total	120
Real Estate - Commercial Mortgage [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	93,098
2022	277,464
2021	154,743
2020	108,076
2019	44,874
Prior	115,068
Revolving Loans	16,059
Total	809,382
Real Estate - Commercial Mortgage [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	3,299
2022	316
2021	0
2020	233
2019	1,373
Prior	1,014
Revolving Loans	0
Total	6,235
Real Estate - Commercial Mortgage [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	0
2022	1,250
2021	6,781
2020	1,651
2019	614
Prior	1,627
Revolving Loans	694
Total	12,617
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	295,214
2022	435,098
2021	86,786
2020	40,457
2019	27,044
Prior	75,283
Revolving Loans	8,031
Total	967,913
Real Estate - Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	294,155
2022	434,902
2021	86,357
2020	39,468
2019	26,126
Prior	71,667
Revolving Loans	8,031
Total	960,706
Real Estate - Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	269
2022	90
2021	225
2020	510
2019	0
Prior	542
Revolving Loans	0
Total	1,636
Real Estate - Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	790
2022	106
2021	204
2020	479
2019	918
Prior	3,074
Revolving Loans	0
Total	5,571
Real Estate - Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	71
2022	145
2021	130
2020	11
2019	388
Prior	997
Revolving Loans	202,257
Total	203,606
Real Estate - Home Equity [Member] | Current-Period Gross Writeoffs [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	39
Total	39
Real Estate - Home Equity [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	71
2022	145
2021	130
2020	11
2019	388
Prior	997
Revolving Loans	201,397
Total	203,139
Real Estate - Home Equity [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	0
Revolving Loans	467
Total	467
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	57,824
2022	99,553
2021	79,432
2020	24,568
2019	12,417
Prior	6,390
Revolving Loans	6,014
Total	286,198
Consumer [Member] | Current-Period Gross Writeoffs [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	2,322
2022	2,199
2021	1,075
2020	228
2019	200
Prior	94
Revolving Loans	134
Total	6,252
Consumer [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	57,755
2022	99,327
2021	79,230
2020	24,375
2019	12,417
Prior	6,387
Revolving Loans	6,014
Total	285,505
Consumer [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
2023	69
2022	226
2021	202
2020	193
2019	0
Prior	3
Revolving Loans	0
Total	$ 693