LHFI and ACL, LHFI - Past Due Modifications Related To Loans Held For Investment (Details) - Troubled Debt Restructurings [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable Modifications [Line Items]
Total	$ 7,123	$ 442	$ 8,875	$ 2,218
30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total	0	0	114	462
Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total	0	0	50	0
Past Due 90 Days or More [Member]
Financing Receivable Modifications [Line Items]
Total			42
Past Due
Financing Receivable Modifications [Line Items]
Total	0	0	206	462
Current Loans [Member]
Financing Receivable Modifications [Line Items]
Total	7,123	442	8,669	1,756
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total				370
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 [Member]
Financing Receivable Modifications [Line Items]
Total				370
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total	30	346	30	912
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	0	170
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	0	0	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	0	170
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Current Loans [Member]
Financing Receivable Modifications [Line Items]
Total	30	346	30	742
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Total	6,207		6,207	255
Commercial and Industrial Loans [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total			0	0
Commercial and Industrial Loans [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total	0		0	0
Commercial and Industrial Loans [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total	0		0	0
Commercial and Industrial Loans [Member] | Current Loans [Member]
Financing Receivable Modifications [Line Items]
Total	6,207		6,207	255
Consumer Loans [Member]
Financing Receivable Modifications [Line Items]
Total				40
Consumer Loans [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total	0			20
Consumer Loans [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total				0
Consumer Loans [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total				20
Consumer Loans [Member] | Current Loans [Member]
Financing Receivable Modifications [Line Items]
Total				20
Other Commercial Loans and Leases [Member]
Financing Receivable Modifications [Line Items]
Total				147
Other Commercial Loans and Leases [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total				0
Other Commercial Loans and Leases [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total				0
Other Commercial Loans and Leases [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total				0
Other Commercial Loans and Leases [Member] | Current Loans [Member]
Financing Receivable Modifications [Line Items]
Total				147
Other Residential Financing Receivable [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total	886	96	2,638	494
Other Residential Financing Receivable [Member] | Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]
Financing Receivable Modifications [Line Items]
Total	0	0	114	272
Other Residential Financing Receivable [Member] | Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total	0	0	50	0
Other Residential Financing Receivable [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Financing Receivable Modifications [Line Items]
Total			42
Other Residential Financing Receivable [Member] | Loans Secured by Real Estate [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total	0	0	206	272
Other Residential Financing Receivable [Member] | Loans Secured by Real Estate [Member] | Current Loans [Member]
Financing Receivable Modifications [Line Items]
Total	$ 886	$ 96	$ 2,432	$ 222