Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	$ 9,107	$ 3,656
Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	6,552	1,293
Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	1,021	1,209
Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	342	84
Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	5,161
Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	28
Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,555	228
Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	136	228
Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,417
Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2
Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		2,135
Commercial Real Estate
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	5,161	0
Commercial Real Estate | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	5,161	0
Commercial Real Estate | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Commercial Real Estate | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Commercial Real Estate | Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	5,161
Commercial Real Estate | Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Commercial Real Estate | Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Commercial Real Estate | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Commercial Real Estate | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Commercial Real Estate | Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Commercial Real Estate | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		0
Residential Real Estate
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	827	748
Residential Real Estate | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	827	748
Residential Real Estate | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	485	664
Residential Real Estate | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	342	84
Residential Real Estate | Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Residential Real Estate | Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Residential Real Estate | Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Residential Real Estate | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Residential Real Estate | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Residential Real Estate | Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Residential Real Estate | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		0
Land
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	28	0
Land | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	28	0
Land | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Land | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Land | Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Land | Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	28
Land | Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Land | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Land | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Land | Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Land | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		0
Other Residential
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	3,089	2,908
Other Residential | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	536	545
Other Residential | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	536	545
Other Residential | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Other Residential | Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Other Residential | Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Other Residential | Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,553	228
Other Residential | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	136	228
Other Residential | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,417
Other Residential | Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Other Residential | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		2,135
RVs And Automobiles
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2	0
RVs And Automobiles | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
RVs And Automobiles | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
RVs And Automobiles | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
RVs And Automobiles | Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
RVs And Automobiles | Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
RVs And Automobiles | Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2	0
RVs And Automobiles | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
RVs And Automobiles | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
RVs And Automobiles | Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2
RVs And Automobiles | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		0
Business Assets
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets | Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Business Assets | Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Business Assets | Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0
Business Assets | Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	$ 0
Business Assets | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans		$ 0