Annual report pursuant to Section 13 and 15(d)

LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Summary of Gross Loans Held for Investment by Years of Origination) (Details)

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LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Summary of Gross Loans Held for Investment by Years of Origination) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Recorded Investment [Line Items]      
Current Period Gross Writeoffs, Total $ 9,292 $ 7,906 $ 4,827
Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 57,652    
2022 67,456    
2021 29,387    
2020 10,697    
2019 7,787    
Prior 7,624    
Revolving 44,587    
Total 225,190    
Current Period Gross Writeoffs, 2023 6    
Current Period Gross Writeoffs, 2022 252    
Current Period Gross Writeoffs, 2021 65    
Current Period Gross Writeoffs, 2020 31    
Current Period Gross Writeoffs, 2019 41    
Current Period Gross Writeoffs, Prior 19    
Current Period Gross Writeoffs, Revolving 97    
Current Period Gross Writeoffs, Total 511 1,308 239
Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 102,315    
2022 68,812    
2021 19,296    
2020 863    
2019 188    
Prior 0    
Revolving 4,617    
Total 196,091    
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, 2019 0    
Current Period Gross Writeoffs, Prior 0    
Current Period Gross Writeoffs, Revolving 0    
Current Period Gross Writeoffs, Total 0 0 0
Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 121,106    
2022 281,989    
2021 142,358    
2020 103,076    
2019 45,841    
Prior 112,025    
Revolving 19,061    
Total 825,456    
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, 2019 0    
Current Period Gross Writeoffs, Prior 120    
Current Period Gross Writeoffs, Revolving 0    
Current Period Gross Writeoffs, Total 120 355 405
Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 373,232    
2022 401,636    
2021 85,097    
2020 38,007    
2019 25,855    
Prior 72,140    
Revolving 8,252    
Total 1,004,219    
Current Period Gross Writeoffs, 2023 0    
Current Period Gross Writeoffs, 2022 0    
Current Period Gross Writeoffs, 2021 79    
Current Period Gross Writeoffs, 2020 0    
Current Period Gross Writeoffs, 2019 0    
Current Period Gross Writeoffs, Prior 0    
Current Period Gross Writeoffs, Revolving 0    
Current Period Gross Writeoffs, Total 79 0 108
Real Estate - Home Equity [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 890    
2022 48    
2021 127    
2020 11    
2019 386    
Prior 950    
Revolving 208,508    
Total 210,920    
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, 2019 0    
Current Period Gross Writeoffs, Prior 0    
Current Period Gross Writeoffs, Revolving 39    
Current Period Gross Writeoffs, Total 39 193 103
Real Estate - Home Equity [Member] | Performing [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 890    
2022 48    
2021 127    
2020 11    
2019 386    
Prior 950    
Revolving 207,509    
Total 209,921    
Real Estate - Home Equity [Member] | Nonperforming [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 0    
2022 0    
2021 0    
2020 0    
2019 0    
Prior 0    
Revolving 999    
Total 999    
Consumer [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 68,789    
2022 90,386    
2021 70,940    
2020 21,318    
2019 10,210    
Prior 4,258    
Revolving 6,141    
Total 272,042    
Current Period Gross Writeoffs, 2023 3,137    
Current Period Gross Writeoffs, 2022 3,224    
Current Period Gross Writeoffs, 2021 1,362    
Current Period Gross Writeoffs, 2020 329    
Current Period Gross Writeoffs, 2019 230    
Current Period Gross Writeoffs, Prior 99    
Current Period Gross Writeoffs, Revolving 162    
Current Period Gross Writeoffs, Total 8,543 $ 6,050 $ 3,972
Consumer [Member] | Performing [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 68,496    
2022 90,031    
2021 70,882    
2020 21,314    
2019 10,210    
Prior 4,258    
Revolving 5,431    
Total 270,622    
Consumer [Member] | Nonperforming [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 293    
2022 355    
2021 58    
2020 4    
2019 0    
Prior 0    
Revolving 710    
Total 1,420    
Pass [Member] | Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 57,320    
2022 66,671    
2021 28,933    
2020 10,610    
2019 7,758    
Prior 7,502    
Revolving 44,350    
Total 223,144    
Pass [Member] | Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 101,684    
2022 68,265    
2021 18,181    
2020 0    
2019 188    
Prior 0    
Revolving 4,617    
Total 192,935    
Pass [Member] | Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 117,840    
2022 275,079    
2021 135,663    
2020 101,210    
2019 43,878    
Prior 109,878    
Revolving 18,367    
Total 801,915    
Pass [Member] | Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 372,394    
2022 400,437    
2021 83,108    
2020 35,879    
2019 24,848    
Prior 68,685    
Revolving 8,252    
Total 993,603    
Special Mention [Member] | Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 168    
2022 608    
2021 356    
2020 10    
2019 9    
Prior 0    
Revolving 76    
Total 1,227    
Special Mention [Member] | Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 631    
2022 500    
2021 539    
2020 212    
2019 0    
Prior 0    
Revolving 0    
Total 1,882    
Special Mention [Member] | Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 3,266    
2022 5,684    
2021 0    
2020 229    
2019 1,358    
Prior 573    
Revolving 0    
Total 11,110    
Special Mention [Member] | Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 268    
2022 89    
2021 83    
2020 502    
2019 0    
Prior 313    
Revolving 0    
Total 1,255    
Substandard [Member] | Commercial, Financial, Agricultural [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 164    
2022 177    
2021 98    
2020 77    
2019 20    
Prior 122    
Revolving 161    
Total 819    
Substandard [Member] | Real Estate - Construction [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 0    
2022 47    
2021 576    
2020 651    
2019 0    
Prior 0    
Revolving 0    
Total 1,274    
Substandard [Member] | Real Estate - Commercial Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 0    
2022 1,226    
2021 6,695    
2020 1,637    
2019 605    
Prior 1,574    
Revolving 694    
Total 12,431    
Substandard [Member] | Real Estate - Residential [Member]      
Financing Receivable, Recorded Investment [Line Items]      
2023 570    
2022 1,110    
2021 1,906    
2020 1,626    
2019 1,007    
Prior 3,142    
Revolving 0    
Total $ 9,361