LHFI and ACL, LHFI - Past Due Modifications Related To Loans Held For Investment (Details) - Troubled Debt Restructurings [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable Modifications [Line Items]
Total	$ 2,274	$ 876
30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total	0	0
Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total	0	0
Past Due
Financing Receivable Modifications [Line Items]
Total	0	0
Current Loans
Financing Receivable Modifications [Line Items]
Total	2,274	876
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total	1,461
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total	0
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total	0
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total	0
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	1,461
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total		384
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total		0
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total		0
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total		0
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total		384
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total	813	492
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total	0	0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total		0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total	0	0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	$ 813	$ 492