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LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Recorded investment in nonaccrual and past due loans) (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL $ 3,439 $ 2,486
Nonaccrual, with ACL 2,076 3,756
90+ Days Still Accruing 0 0
Commercial, Financial and Agricultural [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL 0 0
Nonaccrual, with ACL 153 311
90+ Days Still Accruing 0 0
Real Estate - Construction [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL 275 0
Nonaccrual, with ACL 47 322
90+ Days Still Accruing 0 0
Real Estate - Commercial Mortgage [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL 513 781
Nonaccrual, with ACL 130 128
90+ Days Still Accruing 0 0
Real Estate - Residential [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL 2,398 1,705
Nonaccrual, with ACL 413 1,285
90+ Days Still Accruing 0 0
Real Estate - Home Equity [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL 253 0
Nonaccrual, with ACL 860 999
90+ Days Still Accruing 0 0
Consumer [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual With No ACL 0 0
Nonaccrual, with ACL 473 711
90+ Days Still Accruing $ 0 $ 0