Loans Receivable and Allowance for Credit Losses - Schedule of Accounts, Notes, Loans and Financing Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,183,385		$ 1,182,310
ACL	15,306		15,227
Total Loans	1,168,079		1,167,083
One to Four Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	493,208		474,180
Permanent owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	260,970		232,869
Permanent non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	232,238		241,311
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	140,022		126,866
ACL	1,567	$ 1,582	1,210	$ 1,266	$ 1,296	$ 1,279
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	394,691		407,904
ACL	3,937	4,367	5,397	5,398	6,187	6,615
Construction Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	55,341		77,644
ACL	1,640	1,664	1,717	1,533	1,357	2,064
One-to-four family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	43,532		52,492
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,043		15,393
Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,766		9,759
Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	27,975		31,363
ACL	357	347	948	957	998	1,112
Prior
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	72,148		64,353
ACL	$ 2,059	$ 2,072	$ 1,912	$ 1,770	$ 1,595	$ 1,373