LHFI and ACL, LHFI - Troubled Debt Restructuring Related to Loans Held for Investment, Excluding Covered Loans, by Loan Type (Details) - Troubled Debt Restructurings [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Financing Receivable Modifications [Line Items]
Total	$ 1,122	$ 1,998
Past Due 30 to 59 Days [Member]
Financing Receivable Modifications [Line Items]
Total	60	60
Past Due 60 to 89 Days [Member]
Financing Receivable Modifications [Line Items]
Total	19	19
Past Due
Financing Receivable Modifications [Line Items]
Total	79	79
Current Loans
Financing Receivable Modifications [Line Items]
Total	1,043	1,919
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Total	401	401
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 30 to 59 Days [Member]
Financing Receivable Modifications [Line Items]
Total	38	38
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	19	19
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total	57	57
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	344	344
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] | 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	276	768
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	276	768
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Total	255	255
Commercial and Industrial Loans [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	255	255
Consumer Loans [Member]
Financing Receivable Modifications [Line Items]
Total	42	42
Consumer Loans [Member] | Past Due 30 to 59 Days [Member]
Financing Receivable Modifications [Line Items]
Total	22	22
Consumer Loans [Member] | Past Due
Financing Receivable Modifications [Line Items]
Total	22	22
Consumer Loans [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	20	20
Other Commercial Loans [Member]
Financing Receivable Modifications [Line Items]
Total	148	148
Other Commercial Loans [Member] | Current Loans
Financing Receivable Modifications [Line Items]
Total	$ 148	$ 148