Quarterly report [Sections 13 or 15(d)]

LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Collateral-Dependent Loans) (Details)

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LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Collateral-Dependent Loans) (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans $ 2,582,007 $ 2,651,550
Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 6,800 3,600
Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 5,574 3,554
Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 1,210 94
Commercial, Financial and Agricultural [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 179,018 189,208
Commercial, Financial and Agricultural [Member] | Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Commercial, Financial and Agricultural [Member] | Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 1,210 39
Real Estate - Construction [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 156,756 219,994
Real Estate - Construction [Member] | Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Real Estate - Construction [Member] | Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Real Estate - Commercial Mortgage [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 785,290 779,095
Real Estate - Commercial Mortgage [Member] | Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 1,780 427
Real Estate - Commercial Mortgage [Member] | Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Real Estate - Residential [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 1,039,607 1,042,504
Real Estate - Residential [Member] | Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 2,180 2,476
Real Estate - Residential [Member] | Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Real Estate - Home Equity [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 234,111 220,064
Real Estate - Home Equity [Member] | Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 1,614 651
Real Estate - Home Equity [Member] | Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Consumer [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 187,225 200,685
Consumer [Member] | Real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans 0 0
Consumer [Member] | Non real estate secured [Member] | Asset Pledged as Collateral [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Total Loans $ 0 $ 55