LOANS HELD FOR INVESTMENT, Amortized Cost Basis of Loans Modified to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.12%
Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	3,238
Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 42
Commercial Real Estate [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.00%
Commercial Real Estate [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Commercial Real Estate [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Commercial Real Estate [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Commercial Real Estate [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Commercial [Member] | Specialized [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.00%
Commercial [Member] | Specialized [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Commercial [Member] | Specialized [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Commercial [Member] | Specialized [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Commercial [Member] | Specialized [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Commercial [Member] | General [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.60%
Commercial [Member] | General [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Commercial [Member] | General [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	2,999
Commercial [Member] | General [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Commercial [Member] | General [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 42
Consumer [Member] | 1-4 Family [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.04%
Consumer [Member] | 1-4 Family [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Consumer [Member] | 1-4 Family [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	199
Consumer [Member] | 1-4 Family [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Consumer [Member] | 1-4 Family [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Consumer [Member] | Auto Loans [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.01%
Consumer [Member] | Auto Loans [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Consumer [Member] | Auto Loans [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	40
Consumer [Member] | Auto Loans [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Consumer [Member] | Auto Loans [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Consumer [Member] | Other Consumer [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.00%
Consumer [Member] | Other Consumer [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Consumer [Member] | Other Consumer [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Consumer [Member] | Other Consumer [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Consumer [Member] | Other Consumer [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Construction [Member]
Financing Receivable Modification [Abstract]
Total class of financing receivable	0.00%
Construction [Member] | Payment Delay [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0
Construction [Member] | Term Extension [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Construction [Member] | Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	0
Construction [Member] | Term Extension and Interest Rate Reduction [Member]
Financing Receivable Modification [Abstract]
Loans modified	$ 0