Loans Receivable and Allowance for Credit Losses - Schedule of Loans by Class Modified as Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan	2	4	11
Pre-Modification Outstanding Recorded Investment	$ 1,880	$ 5,657	$ 5,439
Post-Modification Outstanding Recorded Investment	$ 1,880	$ 5,657	$ 5,439
Commercial and Industrial
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan	1	2	6
Pre-Modification Outstanding Recorded Investment	$ 96	$ 3,336	$ 1,140
Post-Modification Outstanding Recorded Investment	$ 96	$ 3,336	$ 1,140
Multifamily (5 or more) residential properties
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan		1
Pre-Modification Outstanding Recorded Investment		$ 717
Post-Modification Outstanding Recorded Investment		$ 717
Non-owner occupied, nonfarm nonresidential properties
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan	1	1	1
Pre-Modification Outstanding Recorded Investment	$ 1,784	$ 1,604	$ 3,684
Post-Modification Outstanding Recorded Investment	$ 1,784	$ 1,604	$ 3,684
Owner-occupied, nonfarm nonresidential properties
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan			1
Pre-Modification Outstanding Recorded Investment			$ 260
Post-Modification Outstanding Recorded Investment			$ 260
Other construction loans and all land development and other land loans
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan			1
Pre-Modification Outstanding Recorded Investment			$ 46
Post-Modification Outstanding Recorded Investment			$ 46
Residential Mortgages secured by first liens
Schedule Of Financial Receivables [Line Items]
Number of Loans | loan			2
Pre-Modification Outstanding Recorded Investment			$ 309
Post-Modification Outstanding Recorded Investment			$ 309