Loans - Schedule of Activity in Allowance for Loan Losses (Details) $ in Thousands	12 Months Ended
Dec. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($)
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	$ 7,599	$ 6,306
Charge-offs	(204)	(124)
Recoveries	41	192
Provision (Release of)	564	1,225
Ending Allowance	8,760	7,599
Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	760
Ending Allowance		760
Real estate loans:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	5,613
Ending Allowance		5,613
Real estate loans: \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,462
Ending Allowance		1,462
Real estate loans: \| One-to-four family
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,771	1,402
Charge-offs	0	0
Recoveries	0	99
Provision (Release of)	504	270
Ending Allowance	2,630	1,771
Real estate loans: \| One-to-four family \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	355
Ending Allowance		355
Real estate loans: \| Home equity
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	132	93
Charge-offs	(25)	0
Recoveries	0	58
Provision (Release of)	9	(19)
Ending Allowance	$ 185	132
Number of loans charged off \| loan	1
Real estate loans: \| Home equity \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	$ 69
Ending Allowance		69
Real estate loans: \| Commercial and multifamily
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	2,501	2,340
Charge-offs	0	0
Recoveries	0	0
Provision (Release of)	(1,111)	161
Ending Allowance	1,070	2,501
Real estate loans: \| Commercial and multifamily \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	(320)
Ending Allowance		(320)
Real estate loans: \| Construction and land
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,209	650
Charge-offs	0	0
Recoveries	0	0
Provision (Release of)	(1,219)	559
Ending Allowance	1,349	1,209
Real estate loans: \| Construction and land \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,359
Ending Allowance		1,359
Consumer loans:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,242
Ending Allowance		1,242
Consumer loans: \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	(177)
Ending Allowance		(177)
Consumer loans: \| Manufactured homes
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	462	475
Charge-offs	0	0
Recoveries	0	12
Provision (Release of)	689	(25)
Ending Allowance	971	462
Consumer loans: \| Manufactured homes \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	(180)
Ending Allowance		(180)
Consumer loans: \| Floating homes
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	456	372
Charge-offs	0	0
Recoveries	0	0
Provision (Release of)	1,400	84
Ending Allowance	2,022	456
Consumer loans: \| Floating homes \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	166
Ending Allowance		166
Consumer loans: \| Other consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	324	310
Charge-offs	(179)	(118)
Recoveries	41	17
Provision (Release of)	403	115
Ending Allowance	426	324
Consumer loans: \| Other consumer \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	(163)
Ending Allowance		(163)
Commercial business
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	256	269
Charge-offs	0	(6)
Recoveries	0	6
Provision (Release of)	(114)	(13)
Ending Allowance	107	256
Commercial business \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	(35)
Ending Allowance		(35)
Unallocated Financing Receivables [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	488	395
Charge-offs	0	0
Recoveries	0	0
Provision (Release of)	3	93
Ending Allowance	0	488
Unallocated Financing Receivables [Member] \| Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	$ (491)
Ending Allowance		$ (491)

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
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-Publisher FASB
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- Definition

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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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