Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Impact of Modifications Classified as Troubled Debt Restructurings (Details) - Troubled Debt Restructurings [Member] $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) Contract	Sep. 30, 2021 USD ($) Contract	Sep. 30, 2022 USD ($) Contract	Sep. 30, 2021 USD ($) Contract
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract	7	4	21	20
Pre-Modification Outstanding Recorded Investment	$ 907	$ 635	$ 8,739	$ 12,823
Post-Modification Outstanding Recorded Investment	$ 906	$ 635	$ 8,757	$ 12,823
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract			1	5
Pre-Modification Outstanding Recorded Investment			$ 146	$ 5,582
Post-Modification Outstanding Recorded Investment			$ 146	$ 5,582
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract	2	0	4	3
Pre-Modification Outstanding Recorded Investment	$ 248	$ 0	$ 321	$ 37
Post-Modification Outstanding Recorded Investment	$ 241	$ 0	$ 314	$ 37
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract	1	3	4	4
Pre-Modification Outstanding Recorded Investment	$ 501	$ 483	$ 6,505	$ 860
Post-Modification Outstanding Recorded Investment	$ 499	$ 483	$ 6,503	$ 860
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract	4	1	10	4
Pre-Modification Outstanding Recorded Investment	$ 158	$ 152	$ 1,182	$ 401
Post-Modification Outstanding Recorded Investment	$ 166	$ 152	$ 1,209	$ 401
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract			1	2
Pre-Modification Outstanding Recorded Investment			$ 500	$ 1,014
Post-Modification Outstanding Recorded Investment			$ 500	$ 1,014
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract			1
Pre-Modification Outstanding Recorded Investment			$ 85
Post-Modification Outstanding Recorded Investment			$ 85
Other Commercial Loans [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | Contract				2
Pre-Modification Outstanding Recorded Investment				$ 4,929
Post-Modification Outstanding Recorded Investment				$ 4,929