LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loans held for investment by years of origination) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
12 Months Ended |
Mar. 31, 2024 |
Mar. 31, 2023 |
Dec. 31, 2023 |
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| Total |
$ 2,731,172
|
|
$ 2,733,918
|
| Current Period Gross Writeoffs, Total |
2,563
|
$ 2,650
|
|
| Commercial, Financial and Agricultural [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
8,914
|
|
57,652
|
| 2023 |
54,524
|
|
67,456
|
| 2022 |
61,462
|
|
29,387
|
| 2021 |
26,367
|
|
10,697
|
| 2020 |
9,121
|
|
7,787
|
| Prior |
13,978
|
|
7,624
|
| Revolving Loans |
43,932
|
|
44,587
|
| Total |
218,298
|
|
225,190
|
| Current Period Gross Writeoffs, 2024 |
0
|
|
6
|
| Current Period Gross Writeoffs, 2023 |
16
|
|
252
|
| Current Period Gross Writeoffs, 2022 |
167
|
|
65
|
| Current Period Gross Writeoffs, 2021 |
73
|
|
31
|
| Current Period Gross Writeoffs, 2020 |
6
|
|
41
|
| Current Period Gross Writeoffs, Prior |
0
|
|
19
|
| Current Period Gross Writeoffs, Revolving |
20
|
|
97
|
| Current Period Gross Writeoffs, Total |
282
|
164
|
511
|
| Commercial, Financial and Agricultural [Member] | Pass [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
8,690
|
|
57,320
|
| 2023 |
54,213
|
|
66,671
|
| 2022 |
60,831
|
|
28,933
|
| 2021 |
25,989
|
|
10,610
|
| 2020 |
9,022
|
|
7,758
|
| Prior |
13,831
|
|
7,502
|
| Revolving Loans |
43,073
|
|
44,350
|
| Total |
215,649
|
|
223,144
|
| Commercial, Financial and Agricultural [Member] | Special Mention [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
224
|
|
168
|
| 2023 |
153
|
|
608
|
| 2022 |
542
|
|
356
|
| 2021 |
305
|
|
10
|
| 2020 |
9
|
|
9
|
| Prior |
5
|
|
0
|
| Revolving Loans |
698
|
|
76
|
| Total |
1,936
|
|
1,227
|
| Commercial, Financial and Agricultural [Member] | Substandard [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
164
|
| 2023 |
158
|
|
177
|
| 2022 |
89
|
|
98
|
| 2021 |
73
|
|
77
|
| 2020 |
90
|
|
20
|
| Prior |
142
|
|
122
|
| Revolving Loans |
161
|
|
161
|
| Total |
713
|
|
819
|
| Real Estate - Construction [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
9,733
|
|
102,315
|
| 2023 |
122,163
|
|
68,812
|
| 2022 |
52,672
|
|
19,296
|
| 2021 |
12,894
|
|
863
|
| 2020 |
210
|
|
188
|
| Prior |
187
|
|
0
|
| Revolving Loans |
4,833
|
|
4,617
|
| Total |
202,692
|
|
196,091
|
| Current Period Gross Writeoffs, Total |
0
|
0
|
|
| Real Estate - Construction [Member] | Pass [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
9,733
|
|
101,684
|
| 2023 |
121,495
|
|
68,265
|
| 2022 |
52,078
|
|
18,181
|
| 2021 |
12,036
|
|
0
|
| 2020 |
0
|
|
188
|
| Prior |
187
|
|
0
|
| Revolving Loans |
4,833
|
|
4,617
|
| Total |
200,362
|
|
192,935
|
| Real Estate - Construction [Member] | Special Mention [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
631
|
| 2023 |
668
|
|
500
|
| 2022 |
520
|
|
539
|
| 2021 |
290
|
|
212
|
| 2020 |
210
|
|
0
|
| Prior |
0
|
|
0
|
| Revolving Loans |
0
|
|
0
|
| Total |
1,688
|
|
1,882
|
| Real Estate - Construction [Member] | Substandard [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
0
|
| 2023 |
0
|
|
47
|
| 2022 |
74
|
|
576
|
| 2021 |
568
|
|
651
|
| 2020 |
0
|
|
0
|
| Prior |
0
|
|
0
|
| Revolving Loans |
0
|
|
0
|
| Total |
642
|
|
1,274
|
| Real Estate - Commercial Mortgage [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
17,060
|
|
121,106
|
| 2023 |
119,964
|
|
281,989
|
| 2022 |
278,428
|
|
142,358
|
| 2021 |
138,680
|
|
103,076
|
| 2020 |
101,280
|
|
45,841
|
| Prior |
150,235
|
|
112,025
|
| Revolving Loans |
18,043
|
|
19,061
|
| Total |
823,690
|
|
825,456
|
| Current Period Gross Writeoffs, 2024 |
|
|
0
|
| Current Period Gross Writeoffs, 2023 |
|
|
0
|
| Current Period Gross Writeoffs, 2022 |
|
|
0
|
| Current Period Gross Writeoffs, 2021 |
|
|
0
|
| Current Period Gross Writeoffs, 2020 |
|
|
0
|
| Current Period Gross Writeoffs, Prior |
|
|
120
|
| Current Period Gross Writeoffs, Revolving |
|
|
0
|
| Current Period Gross Writeoffs, Total |
0
|
120
|
120
|
| Real Estate - Commercial Mortgage [Member] | Pass [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
17,060
|
|
117,840
|
| 2023 |
114,391
|
|
275,079
|
| 2022 |
271,591
|
|
135,663
|
| 2021 |
132,081
|
|
101,210
|
| 2020 |
98,214
|
|
43,878
|
| Prior |
146,120
|
|
109,878
|
| Revolving Loans |
17,344
|
|
18,367
|
| Total |
796,801
|
|
801,915
|
| Real Estate - Commercial Mortgage [Member] | Special Mention [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
3,266
|
| 2023 |
5,573
|
|
5,684
|
| 2022 |
5,633
|
|
0
|
| 2021 |
0
|
|
229
|
| 2020 |
795
|
|
1,358
|
| Prior |
1,995
|
|
573
|
| Revolving Loans |
0
|
|
0
|
| Total |
13,996
|
|
11,110
|
| Real Estate - Commercial Mortgage [Member] | Substandard [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
0
|
| 2023 |
0
|
|
1,226
|
| 2022 |
1,204
|
|
6,695
|
| 2021 |
6,599
|
|
1,637
|
| 2020 |
2,271
|
|
605
|
| Prior |
2,120
|
|
1,574
|
| Revolving Loans |
699
|
|
694
|
| Total |
12,893
|
|
12,431
|
| Real Estate - Residential [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
38,629
|
|
373,232
|
| 2023 |
358,326
|
|
401,636
|
| 2022 |
392,122
|
|
85,097
|
| 2021 |
83,232
|
|
38,007
|
| 2020 |
36,567
|
|
25,855
|
| Prior |
99,195
|
|
72,140
|
| Revolving Loans |
8,509
|
|
8,252
|
| Total |
1,016,580
|
|
1,004,219
|
| Current Period Gross Writeoffs, 2024 |
0
|
|
0
|
| Current Period Gross Writeoffs, 2023 |
13
|
|
0
|
| Current Period Gross Writeoffs, 2022 |
0
|
|
79
|
| Current Period Gross Writeoffs, 2021 |
0
|
|
0
|
| Current Period Gross Writeoffs, 2020 |
0
|
|
0
|
| Current Period Gross Writeoffs, Prior |
4
|
|
0
|
| Current Period Gross Writeoffs, Revolving |
0
|
|
0
|
| Current Period Gross Writeoffs, Total |
17
|
0
|
79
|
| Real Estate - Residential [Member] | Pass [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
38,629
|
|
372,394
|
| 2023 |
358,059
|
|
400,437
|
| 2022 |
390,522
|
|
83,108
|
| 2021 |
80,624
|
|
35,879
|
| 2020 |
35,045
|
|
24,848
|
| Prior |
95,003
|
|
68,685
|
| Revolving Loans |
8,509
|
|
8,252
|
| Total |
1,006,391
|
|
993,603
|
| Real Estate - Residential [Member] | Special Mention [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
268
|
| 2023 |
267
|
|
89
|
| 2022 |
88
|
|
83
|
| 2021 |
82
|
|
502
|
| 2020 |
494
|
|
0
|
| Prior |
163
|
|
313
|
| Revolving Loans |
0
|
|
0
|
| Total |
1,094
|
|
1,255
|
| Real Estate - Residential [Member] | Substandard [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
570
|
| 2023 |
0
|
|
1,110
|
| 2022 |
1,512
|
|
1,906
|
| 2021 |
2,526
|
|
1,626
|
| 2020 |
1,028
|
|
1,007
|
| Prior |
4,029
|
|
3,142
|
| Revolving Loans |
0
|
|
0
|
| Total |
9,095
|
|
9,361
|
| Real Estate - Home Equity [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
11
|
|
890
|
| 2023 |
507
|
|
48
|
| 2022 |
47
|
|
127
|
| 2021 |
130
|
|
11
|
| 2020 |
10
|
|
386
|
| Prior |
2,388
|
|
950
|
| Revolving Loans |
211,524
|
|
208,508
|
| Total |
214,617
|
|
210,920
|
| Current Period Gross Writeoffs, 2024 |
0
|
|
0
|
| Current Period Gross Writeoffs, 2023 |
0
|
|
0
|
| Current Period Gross Writeoffs, 2022 |
0
|
|
0
|
| Current Period Gross Writeoffs, 2021 |
0
|
|
0
|
| Current Period Gross Writeoffs, 2020 |
0
|
|
0
|
| Current Period Gross Writeoffs, Prior |
0
|
|
0
|
| Current Period Gross Writeoffs, Revolving |
76
|
|
39
|
| Current Period Gross Writeoffs, Total |
76
|
0
|
39
|
| Real Estate - Home Equity [Member] | Performing Financial Instruments [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
11
|
|
890
|
| 2023 |
507
|
|
48
|
| 2022 |
47
|
|
127
|
| 2021 |
130
|
|
11
|
| 2020 |
10
|
|
386
|
| Prior |
2,388
|
|
950
|
| Revolving Loans |
210,775
|
|
207,509
|
| Total |
213,868
|
|
209,921
|
| Real Estate - Home Equity [Member] | Nonperforming Financial Instruments [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
0
|
| 2023 |
0
|
|
0
|
| 2022 |
0
|
|
0
|
| 2021 |
0
|
|
0
|
| 2020 |
0
|
|
0
|
| Prior |
0
|
|
0
|
| Revolving Loans |
749
|
|
999
|
| Total |
749
|
|
999
|
| Consumer [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
11,402
|
|
68,789
|
| 2023 |
63,436
|
|
90,386
|
| 2022 |
80,932
|
|
70,940
|
| 2021 |
63,361
|
|
21,318
|
| 2020 |
18,313
|
|
10,210
|
| Prior |
10,908
|
|
4,258
|
| Revolving Loans |
6,943
|
|
6,141
|
| Total |
255,295
|
|
272,042
|
| Current Period Gross Writeoffs, 2024 |
638
|
|
3,137
|
| Current Period Gross Writeoffs, 2023 |
418
|
|
3,224
|
| Current Period Gross Writeoffs, 2022 |
697
|
|
1,362
|
| Current Period Gross Writeoffs, 2021 |
231
|
|
329
|
| Current Period Gross Writeoffs, 2020 |
92
|
|
230
|
| Current Period Gross Writeoffs, Prior |
35
|
|
99
|
| Current Period Gross Writeoffs, Revolving |
77
|
|
162
|
| Current Period Gross Writeoffs, Total |
2,188
|
$ 2,366
|
8,543
|
| Consumer [Member] | Performing Financial Instruments [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
11,402
|
|
68,496
|
| 2023 |
63,285
|
|
90,031
|
| 2022 |
80,641
|
|
70,882
|
| 2021 |
63,277
|
|
21,314
|
| 2020 |
18,244
|
|
10,210
|
| Prior |
10,864
|
|
4,258
|
| Revolving Loans |
6,304
|
|
5,431
|
| Total |
254,017
|
|
270,622
|
| Consumer [Member] | Nonperforming Financial Instruments [Member] |
|
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
|
| 2024 |
0
|
|
293
|
| 2023 |
151
|
|
355
|
| 2022 |
291
|
|
58
|
| 2021 |
84
|
|
4
|
| 2020 |
69
|
|
0
|
| Prior |
44
|
|
0
|
| Revolving Loans |
639
|
|
710
|
| Total |
$ 1,278
|
|
$ 1,420
|