Accounting Pronouncements Recently Issued or Adopted (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	$ 8,532	$ 8,359	$ 7,599	$ 6,407	$ 6,306
Reserve for unfunded commitments	795	1,030	335	419	404
Total	9,327	9,389	7,934	6,826	6,710
Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL		7,075	5,613
Real estate loans: | One- to four- family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	2,059	2,126	1,771	1,474	1,402
Real estate loans: | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	197	201	132	96	93
Real estate loans: | Commercial and multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	2,225	2,181	2,501	2,227	2,340
Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	2,778	2,568	1,209	698	650
Consumer loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL		1,065	1,242
Consumer loans: | Manufactured homes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	283	282	462	448	475
Consumer loans: | Floating homes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	611	622	456	376	372
Consumer loans: | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	159	161	324	333	310
Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	216	221	256	238	269
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL	$ 4	$ (3)	488	$ 517	$ 395
Impact of Adoption of ASU 2016-16
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			760
Deferred tax assets			(305)
Reserve for unfunded commitments			695
Total			1,455
Impact of Adoption of ASU 2016-16 | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			1,500
Impact of Adoption of ASU 2016-16 | Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			1,462
Impact of Adoption of ASU 2016-16 | Real estate loans: | One- to four- family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			355
Impact of Adoption of ASU 2016-16 | Real estate loans: | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			69
Impact of Adoption of ASU 2016-16 | Real estate loans: | Commercial and multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			(320)
Impact of Adoption of ASU 2016-16 | Real estate loans: | Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			1,359
Impact of Adoption of ASU 2016-16 | Consumer loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			(177)
Impact of Adoption of ASU 2016-16 | Consumer loans: | Manufactured homes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			(180)
Impact of Adoption of ASU 2016-16 | Consumer loans: | Floating homes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			166
Impact of Adoption of ASU 2016-16 | Consumer loans: | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			(163)
Impact of Adoption of ASU 2016-16 | Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			(35)
Impact of Adoption of ASU 2016-16 | Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial adjustment to ACL			(491)
Impact of Adoption of ASU 2016-16 | Retained Earnings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Stockholders' equity			$ 1,100