LOANS HELD FOR INVESTMENT - Amortized Cost Basis of Loans Modified to Borrowers Experiencing Financial Difficulty and Financial Effects of Loan Modifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.22%	0.12%
Nonaccrual	$ 4,093	$ 1,588
30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	1,332	228
90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	142
Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	41	409
Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	1,712	493
Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	403	818
Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	4,787	1,868
Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	30	29
Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 10	$ 47
Commercial Real Estate [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.07%	0.01%
Nonaccrual	$ 0	$ 0
Weighted-average interest rate reduction	0.00%	0.00%
Weighted-average term extension	9 months	12 months
Commercial Real Estate [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 725	$ 74
Commercial Real Estate [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial Real Estate [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	74
Commercial Real Estate [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	124	65
Commercial Real Estate [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial Real Estate [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	601	0
Commercial Real Estate [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial Real Estate [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Commercial [Member] | Specialized [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.02%	0.00%
Nonaccrual	$ 95	$ 13
Weighted-average interest rate reduction	0.00%	0.00%
Weighted-average term extension	11 months
Commercial [Member] | Specialized [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Commercial [Member] | Specialized [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial [Member] | Specialized [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	13
Commercial [Member] | Specialized [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial [Member] | Specialized [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial [Member] | Specialized [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	95	0
Commercial [Member] | Specialized [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial [Member] | Specialized [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Commercial [Member] | General [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.81%	0.09%
Nonaccrual	$ 3,998	$ 0
Weighted-average interest rate reduction	9.10%	0.82%
Weighted-average term extension	7 months	14 months
Commercial [Member] | General [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 577	$ 59
Commercial [Member] | General [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	82
Commercial [Member] | General [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Commercial [Member] | General [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	900	428
Commercial [Member] | General [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	403	0
Commercial [Member] | General [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	4,048	11
Commercial [Member] | General [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	29
Commercial [Member] | General [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 7	$ 47
Consumer [Member] | 1-4 Family [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.03%	0.09%
Nonaccrual	$ 0	$ 0
Weighted-average interest rate reduction	0.25%	0.00%
Weighted-average term extension	3 months	10 months
Consumer [Member] | 1-4 Family [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Consumer [Member] | 1-4 Family [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	60
Consumer [Member] | 1-4 Family [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	322
Consumer [Member] | 1-4 Family [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	131	0
Consumer [Member] | 1-4 Family [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | 1-4 Family [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	187
Consumer [Member] | 1-4 Family [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	30	0
Consumer [Member] | 1-4 Family [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Consumer [Member] | Auto Loans [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.04%	0.00%
Nonaccrual	$ 0	$ 0
Weighted-average interest rate reduction	1.20%	0.00%
Weighted-average term extension	18 months
Consumer [Member] | Auto Loans [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 30	$ 0
Consumer [Member] | Auto Loans [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Auto Loans [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	41	0
Consumer [Member] | Auto Loans [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	30	0
Consumer [Member] | Auto Loans [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Auto Loans [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	29	0
Consumer [Member] | Auto Loans [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Auto Loans [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 3	$ 0
Consumer [Member] | Other Consumer [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.02%	0.00%
Nonaccrual	$ 0	$ 0
Weighted-average interest rate reduction	0.00%	0.00%
Weighted-average term extension	5 months
Consumer [Member] | Other Consumer [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Consumer [Member] | Other Consumer [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Other Consumer [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Other Consumer [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Other Consumer [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Other Consumer [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	14	0
Consumer [Member] | Other Consumer [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Consumer [Member] | Other Consumer [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0
Construction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Total % class of financing receivable	0.53%	2.40%
Nonaccrual	$ 0	$ 1,575
Weighted-average interest rate reduction	0.00%	4.25%
Weighted-average term extension	3 months	5 months
Construction [Member] | 30-89 Days Past Due [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 95
Construction [Member] | 90 Days or More Past Due and Still Accruing [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Construction [Member] | Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Construction [Member] | Term Extension [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	527	0
Construction [Member] | Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	818
Construction [Member] | Term Extension and Payment Delay [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	1,670
Construction [Member] | Term Extension and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	0	0
Construction [Member] | Payment Delay, Term Extension, and Interest Rate Reduction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans modified	$ 0	$ 0