Sound Financial Bancorp (SFBC) 10-Q 12 Nov 24 2024 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2024	Nov. 08, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	001-35633
Entity Registrant Name	Sound Financial Bancorp, Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	45-5188530
Entity Address, Address Line One	2400 3rd Avenue,
Entity Address, Address Line Two	Suite 150,
Entity Address, City or Town	Seattle,
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	98121
City Area Code	206
Local Phone Number	448-0884
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	SFBC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		2,564,095
Entity Central Index Key	0001541119
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ASSETS
Cash and cash equivalents	$ 148,930	$ 49,690
Available-for-sale (“AFS”) securities, at fair value (amortized cost of $9,200 and $9,539 as of September 30, 2024 and December 31, 2023, respectively)	8,032	8,287
Held-to-maturity (“HTM”) securities, at amortized cost (fair value of $1,779 and $1,787 at September 30, 2024 and December 31, 2023, respectively)	2,139	2,166
Loans held-for-sale	65	603
Loans held-for-portfolio	901,733	894,478
Allowance for credit losses (“ACL”) on loans	(8,585)	(8,760)
Total loans held-for-portfolio, net	893,148	885,718
Accrued interest receivable	3,705	3,452
Bank-owned life insurance (“BOLI”), net	22,363	21,860
Other real estate owned (“OREO”) and repossessed assets, net	115	575
Mortgage servicing rights (“MSRs”), at fair value	4,665	4,632
Federal Home Loan Bank ("FHLB") stock, at cost	2,405	2,396
Premises and equipment, net	4,807	5,240
Right of use assets	3,779	4,496
Other assets	6,777	6,106
Total assets	1,100,930	995,221
Deposits
Interest-bearing	800,480	699,813
Noninterest-bearing demand	129,717	126,726
Total deposits	930,197	826,539
Borrowings	40,000	40,000
Accrued interest payable	908	817
Lease liabilities	4,079	4,821
Other liabilities	9,711	9,563
Advance payments from borrowers for taxes and insurance	2,047	1,110
Subordinated notes, net	11,749	11,717
Total liabilities	998,691	894,567
COMMITMENTS AND CONTINGENCIES (NOTE 7)	0	0
STOCKHOLDERS’ EQUITY
Preferred stock, $0.01 par value, 10,000,000 shares authorized, none issued or outstanding	0	0
Common stock, $0.01 par value, 40,000,000 shares authorized, 2,564,095 and 2,549,427 shares issued and outstanding as of September 30, 2024 and December 31, 2023, respectively	25	25
Additional paid-in capital	28,296	27,990
Retained earnings	74,840	73,627
Accumulated other comprehensive loss, net of tax	(922)	(988)
Total stockholders’ equity	102,239	100,654
Total liabilities and stockholders’ equity	$ 1,100,930	$ 995,221

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
STOCKHOLDERS’ EQUITY
Available-for-sale securities, amortized cost	$ 9,200	$ 9,539
Held-to-maturity securities, fair value	$ 1,779	$ 1,787
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	2,564,095	2,549,427
Common stock, shares outstanding (in shares)	2,564,095	2,549,427

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
INTEREST INCOME
Loans, including fees	$ 12,876	$ 11,505	$ 37,429	$ 34,437
Interest and dividends on investments, cash and cash equivalents	1,962	1,181	5,209	2,836
Total interest income	14,838	12,686	42,638	37,273
INTEREST EXPENSE
Deposits	6,363	3,877	18,059	8,966
Borrowings	434	473	1,293	1,520
Subordinated notes	168	168	504	504
Total interest expense	6,965	4,518	19,856	10,990
Net interest income	7,873	8,168	22,782	26,283
PROVISION FOR (RELEASE OF) CREDIT LOSSES	8	75	(134)	(246)
Net interest income after provision for (release of) credit losses	7,865	8,093	22,916	26,529
NONINTEREST INCOME
Service charges and fee income	628	700	2,001	1,951
Earnings on BOLI	186	88	498	957
Mortgage servicing income	280	295	841	891
Fair value adjustment on MSRs	101	(78)	(81)	(123)
Net gain on sale of loans	40	76	205	264
Other income	0	0	30	0
Total noninterest income	1,235	1,081	3,494	3,940
NONINTEREST EXPENSE
Salaries and benefits	4,469	4,148	13,670	13,333
Operations	1,540	1,625	4,566	4,557
Regulatory assessments	189	183	598	490
Occupancy	414	458	1,255	1,352
Data processing	1,067	1,296	2,995	3,077
Net (gain) loss on OREO and repossessed assets	0	0	(10)	13
Total noninterest expense	7,679	7,710	23,074	22,822
Income before provision for income taxes	1,421	1,464	3,336	7,647
Provision for income taxes	267	295	617	1,419
Net income	$ 1,154	$ 1,169	$ 2,719	$ 6,228
Earnings per common share:
Basic (in dollars per share)	$ 0.45	$ 0.45	$ 1.06	$ 2.41
Diluted (in dollars per share)	$ 0.45	$ 0.45	$ 1.05	$ 2.39
Weighted-average number of common shares outstanding:
Basic (in shares)	2,544,233	2,553,773	2,541,331	2,568,899
Diluted (in shares)	2,569,368	2,571,808	2,561,942	2,588,788

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,154	$ 1,169	$ 2,719	$ 6,228
Available for sale securities:
Unrealized gains (losses) arising during the period	161	(307)	84	(278)
Income tax (expense) benefit related to unrealized gains (losses)	(34)	64	(18)	58
Other comprehensive income (loss), net of tax	127	(243)	66	(220)
Comprehensive income	$ 1,281	$ 926	$ 2,785	$ 6,008

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Impact of adoption of Accounting Standards Update (“ASU”) 2016-13	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Impact of adoption of Accounting Standards Update (“ASU”) 2016-13	Accumulated Other Comprehensive Income/(Loss), net of tax
Beginning balance (in shares) at Dec. 31, 2022			2,583,619
Beginning balance at Dec. 31, 2022	$ 97,705	$ (1,149)	$ 26	$ 28,004	$ 70,792	$ (1,149)	$ (1,117)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,228				6,228
Other comprehensive (loss) income, net of tax	(220)						(220)
Share-based compensation	368			368
Restricted common stock awards issued (in shares)			8,850
Cash dividends paid on common stock	(1,425)				(1,425)
Common stock repurchased (in shares)			(37,850)
Common stock repurchased	(1,399)		$ (1)	(390)	(1,008)
Common stock surrendered (in shares)			(4,750)
Common stock surrendered	(190)			(190)
Restricted shares forfeited (in shares)			(425)
Common stock options exercised (in shares)			18,610
Common stock options exercised	320			320
Ending balance (in shares) at Sep. 30, 2023			2,568,054
Ending balance at Sep. 30, 2023	100,238		$ 25	28,112	73,438	(1,149)	(1,337)
Beginning balance (in shares) at Jun. 30, 2023			2,573,223
Beginning balance at Jun. 30, 2023	99,924		$ 25	28,070	72,923		(1,094)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,169				1,169
Other comprehensive (loss) income, net of tax	(243)						(243)
Share-based compensation	88			88
Cash dividends paid on common stock	(489)				(489)
Common stock repurchased (in shares)			(6,169)
Common stock repurchased	(228)			(63)	(165)
Common stock options exercised (in shares)			1,000
Common stock options exercised	17			17
Ending balance (in shares) at Sep. 30, 2023			2,568,054
Ending balance at Sep. 30, 2023	$ 100,238		$ 25	28,112	73,438	(1,149)	(1,337)
Beginning balance (in shares) at Dec. 31, 2023	2,549,427		2,549,427
Beginning balance at Dec. 31, 2023	$ 100,654		$ 25	27,990	73,627		(988)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,719				2,719
Other comprehensive (loss) income, net of tax	66						66
Share-based compensation	291			291
Restricted common stock awards issued (in shares)			8,048
Cash dividends paid on common stock	(1,459)				(1,459)
Common stock repurchased (in shares)			(1,626)
Common stock repurchased	(65)			(18)	(47)
Common stock surrendered (in shares)			(5,053)
Common stock surrendered	(218)			(218)
Common stock options exercised (in shares)			13,299
Common stock options exercised	$ 251			251
Ending balance (in shares) at Sep. 30, 2024	2,564,095		2,564,095
Ending balance at Sep. 30, 2024	$ 102,239		$ 25	28,296	74,840	0	(922)
Beginning balance (in shares) at Jun. 30, 2024			2,557,284
Beginning balance at Jun. 30, 2024	101,347		$ 25	28,198	74,173		(1,049)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,154				1,154
Other comprehensive (loss) income, net of tax	127						127
Share-based compensation	98			98
Cash dividends paid on common stock	$ (487)				(487)
Common stock surrendered (in shares)			(5,053)
Common stock options exercised (in shares)			11,864
Ending balance (in shares) at Sep. 30, 2024	2,564,095		2,564,095
Ending balance at Sep. 30, 2024	$ 102,239		$ 25	$ 28,296	$ 74,840	$ 0	$ (922)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Accounting standards update [extensible enumeration]					Accounting Standards Update 2016-13 [Member]
Cash dividends paid on common stock (in dollars per share)	$ 0.19	$ 0.19	$ 0.57	$ 0.55

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,719	$ 6,228
Adjustments to reconcile net income to net cash from operating activities:
Amortization of net discounts on investments	64	60
Release of provision for credit losses	(134)	(246)
Depreciation and amortization	483	534
Share based compensation	291	368
Fair value adjustment on mortgage servicing rights	81	123
Right of use assets amortization	717	699
Change in lease liabilities	(742)	(712)
Change in cash surrender value of BOLI	(498)	(390)
Net gain on BOLI death benefit	0	(567)
Net change in advances from borrowers for taxes and insurance	937	863
Net gain on disposal of premises and equipment, net	(30)	0
Net gain on sale of loans	(205)	(264)
Proceeds from sale of loans held-for-sale	10,722	14,822
Originations of loans held-for-sale	(10,952)	(15,828)
Net (gain) loss on OREO and repossessed assets	(17)	13
Change in operating assets and liabilities:
Accrued interest receivable	(253)	(332)
Other assets	(643)	(2,276)
Accrued interest payable	91	193
Other liabilities	148	1,476
Net cash provided by operating activities	2,779	4,764
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from principal payments, maturities and sales of available-for-sale securities	307	1,920
Proceeds from principal payments of held-to-maturity securities	27	25
Net increase in loans	(6,598)	(9,601)
(Purchase of) proceeds from BOLI	(5)	633
Purchases of premises and equipment, net	(50)	(225)
Proceeds from disposal of premises and equipment, net	30	0
Proceeds from sale of OREO and other repossessed assets	592	71
Net cash used in investing activities	(5,697)	(7,177)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposits	103,658	52,112
Proceeds from borrowings	0	40,000
Repayment of borrowings	0	(43,000)
FHLB stock purchased	(9)	49
Common stock repurchases	(65)	(1,399)
Purchase of common stock surrendered to pay tax liability	(218)	(190)
Dividends paid on common stock	(1,459)	(1,425)
Proceeds from common stock option exercises	251	320
Net cash provided by financing activities	102,158	46,467
Net change in cash and cash equivalents	99,240	44,054
Cash and cash equivalents, beginning of period	49,690	57,836
Cash and cash equivalents, end of period	148,930	101,890
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for income taxes	407	2,100
Interest paid on deposits and borrowings	19,765	10,797
Loans transferred from loans held-for-sale to loans held-for-portfolio	859	0
Loans transferred from loans held-for-portfolio to OREO and repossessed assets	115	0
ROU assets obtained in exchange for new operating lease liabilities	0	329
Impact of adoption of ASU 2016-13 on retained earnings	102,239	100,238
Retained Earnings
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	2,719	6,228
SUPPLEMENTAL CASH FLOW INFORMATION:
Impact of adoption of ASU 2016-13 on retained earnings	74,840	73,438
Impact of Adoption of ASU 2016-13 | Retained Earnings
SUPPLEMENTAL CASH FLOW INFORMATION:
Impact of adoption of ASU 2016-13 on retained earnings	$ 0	$ (1,149)

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying financial information is unaudited and has been prepared from the consolidated financial statements of Sound Financial Bancorp, Inc, and its wholly owned subsidiaries, Sound Community Bank and Sound Community Insurance Agency, Inc. References in this document to “Sound Financial Bancorp” refer to Sound Financial Bancorp, Inc. and references to the “Bank” refer to Sound Community Bank. References to “we,” “us,” and “our” or the “Company” refer to Sound Financial Bancorp, the Bank and Sound Community Insurance Agency, Inc., collectively, unless the context otherwise requires. These unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission (“SEC”). In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations for the periods presented have been included. Certain information and disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. These unaudited financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, as filed with the SEC on March 21, 2024 (“2023 Form 10-K”). The results for the interim periods are not necessarily indicative of results for a full year or any other future period. We have not made any changes in our significant accounting policies from those disclosed in the 2023 Form 10-K.

Accounting Pronouncements Recen

Accounting Pronouncements Recently Issued or Adopted	9 Months Ended
	Sep. 30, 2024
Accounting Standards Update and Change in Accounting Principle [Abstract]
Accounting Pronouncements Recently Issued or Adopted	Accounting Pronouncements Recently Issued or Adopted On March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2020-04, " Reference Rate Reform" ("Topic 848"). This ASU provides optional guidance for a limited time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments in this update apply to modifications to eligible contracts (e.g., loans, debt securities, derivatives, borrowings) that replace a reference rate affected by reference rate reform (including rates referenced in fallback provisions) and contemporaneous modifications of other contract terms related to the replacement of the reference rate (including contract modifications to add or change fallback provisions). The following optional expedients for applying the requirements of certain Topics or Industry Subtopics in the related Codification are permitted for contracts that are modified because of reference rate reform and that meet certain scope guidance: 1) Modifications of contracts within the scope of Topics 310, Receivables, and 470, Debt, should be accounted for by prospectively adjusting the effective interest rate; 2) Modifications of contracts within the scope of Topics 840, Leases, and 842, Leases, should be accounted for as a continuation of the existing contracts with no reassessments of the lease classification and the discount rate (for example, the incremental borrowing rate) or remeasurements of lease payments that otherwise would be required under those Topics for modifications not accounted for as separate contracts; and 3) Modifications of contracts do not require an entity to reassess its original conclusion about whether that contract contains an embedded derivative that is clearly and closely related to the economic characteristics and risks of the host contract under Subtopic 815-15, Derivatives and Hedging— Embedded Derivatives. ASU 2020-04 has not had, and is not expected to have, a material impact on the Company’s consolidated financial statements. In January 2021, ASU 2021-01 updated amendments in the new ASU to clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. The ASU also amends the expedients and exceptions in Topic 848 to capture the incremental consequences of the scope clarification. The amendments in this ASU have differing effective dates, beginning with interim periods including and subsequent to March 12, 2020 through December 31, 2022. Based upon amendments provided in ASU 2022-06 discussed below, provisions of ASU 2021-01 can now generally be applied through December 31, 2024. ASU 2021-01 has not had, and is not expected to have, a material impact on the Company’s consolidated financial statements. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. ASU 2022-06 extends the period of time entities can utilize the reference rate reform relief guidance provided by ASU 2020-04 and ASU 2021-01, which are discussed above. ASU 2022-06 was effective upon issuance and defers the sunset date of this prior guidance to December 31, 2024, after which entities will no longer be permitted to apply the relief guidance in Topic 848. ASU 2022-06 has not had, and is not expected to have, a material impact on the Company’s consolidated financial statements. In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures .” The amended guidance requires incremental reportable segment disclosures, primarily about significant segment expenses. The amendments also require entities with a single reportable segment to provide all disclosures required by these amendments, and all existing segment disclosures. The amendments will be applied retrospectively to all prior periods presented in the financial statements and is effective for fiscal years beginning after December 15, 2023, and interim periods in fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is evaluating the impact of the adoption of ASU 2023-07 on the footnotes to our consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, “ Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The amended guidance enhances income tax disclosures primarily related to the effective tax rate reconciliation and income taxes paid information. This guidance requires disclosure of specific categories in the effective tax rate reconciliation and further information on reconciling items meeting a quantitative threshold. In addition, the amended guidance requires disaggregating income taxes paid (net of refunds received) by federal, state, and foreign taxes. It also requires disaggregating individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than 5 percent of total income taxes paid (net of refunds received). The amended guidance is effective for fiscal years beginning after December 15, 2024. The guidance can be applied either prospectively or retrospectively. We do not expect the adoption of ASU 2023-09 to have a material impact on the footnotes to our consolidated financial statements.

Investments

Investments	9 Months Ended
	Sep. 30, 2024
Investments [Abstract]
Investments	Investments At September 30, 2024, the Company did not own any debt securities classified as trading or any equity investment securities, except for the FHLB securities described in “Note 8 — Borrowings, FHLB Stock and Subordinated Notes.” The amortized cost and estimated fair value of our AFS securities and the corresponding amounts of gross unrealized gains and losses at the dates indicated were as follows (in thousands): Amortized Gross Gross Estimated September 30, 2024 Municipal bonds $ 6,364 $ 11 $ (890) $ 5,485 Agency mortgage-backed securities 2,836 14 (303) 2,547 Total $ 9,200 $ 25 $ (1,193) $ 8,032 December 31, 2023 Municipal bonds $ 6,394 $ 12 $ (878) $ 5,528 Agency mortgage-backed securities 3,145 7 (393) 2,759 Total $ 9,539 $ 19 $ (1,271) $ 8,287 The amortized cost and estimated fair value of our HTM securities and the corresponding amounts of gross unrealized gains and losses at the dates indicated were as follows (in thousands): Amortized Gross Gross Estimated September 30, 2024 Municipal bonds $ 704 $ — $ (178) $ 526 Agency mortgage-backed securities 1,435 — (182) 1,253 Total $ 2,139 $ — $ (360) $ 1,779 December 31, 2023 Municipal bonds $ 704 $ — $ (164) $ 540 Agency mortgage-backed securities 1,462 — (215) 1,247 Total $ 2,166 $ — $ (379) $ 1,787 The amortized cost and estimated fair value of AFS and HTM securities at September 30, 2024, by contractual maturity, are shown below (in thousands). Expected maturities of AFS securities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Investments not due at a single maturity date, consisting of agency mortgage-backed securities, are shown separately. September 30, 2024 Available-for-sale Held-to-maturity Amortized Estimated Fair Value Amortized Estimated Fair Value Due after one year through five years $ 455 $ 455 $ — $ — Due after five years through ten years 1,199 1,210 — — Due after ten years 4,710 3,820 704 526 Agency mortgage-backed securities 2,836 2,547 1,435 1,253 Total $ 9,200 $ 8,032 $ 2,139 $ 1,779 There were no pledged securities at September 30, 2024 or December 31, 2023. There were no sales of AFS or HTM securities during the three and nine months ended September 30, 2024 and 2023. Accrued interest receivable on securities totaled $77 thousand at September 30, 2024 and $49 thousand at December 31, 2023, in the accompanying Condensed Consolidated Balance Sheets. Accrued interest receivable is excluded from the allowance for credit losses. The following table summarizes the aggregate fair value and gross unrealized loss by length of time of those investments for which an allowance for credit losses has not been recorded that have been in a continuous unrealized loss position at the dates indicated (in thousands): September 30, 2024 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale securities Municipal bonds $ — $ — $ 3,820 $ (890) $ 3,820 $ (890) Agency mortgage-backed securities 46 — 2,128 (303) 2,174 (303) Total available-for-sale securities $ 46 $ — $ 5,948 $ (1,193) $ 5,994 $ (1,193) Held-to-maturity securities Municipal bonds $ — $ — $ 526 $ (178) $ 526 $ (178) Agency mortgage-backed securities — — 1,253 (182) 1,253 (182) Total held-to-maturity securities $ — $ — $ 1,779 $ (360) $ 1,779 $ (360) December 31, 2023 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale securities Municipal bonds $ — $ — $ 3,862 $ (878) $ 3,862 $ (878) Agency mortgage-backed securities 48 (1) 2,290 (392) 2,338 (393) Total $ 48 $ (1) $ 6,152 $ (1,270) $ 6,200 $ (1,271) Held-to-maturity securities Municipal bonds $ — $ — $ 540 $ (164) $ 540 $ (164) Agency mortgage-backed securities — — 1,247 (215) 1,247 (215) Total held-to-maturity securities $ — $ — $ 1,787 $ (379) $ 1,787 $ (379)

Loans

Loans	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Loans	Loans Loans-held-for portfolio (which excludes loans held-for-sale) at the dates indicated were as follows (in thousands): September 30, December 31, Real estate loans: One-to-four family $ 271,702 $ 279,448 Home equity 25,199 23,073 Commercial and multifamily 358,587 315,280 Construction and land 85,724 126,758 Total real estate loans 741,212 744,559 Consumer loans: Manufactured homes 40,371 36,193 Floating homes 86,155 75,108 Other consumer 18,266 19,612 Total consumer loans 144,792 130,913 Commercial business loans 17,481 20,688 Total loans held-for-portfolio 903,485 896,160 Premiums for purchased loans (1) 736 829 Deferred fees, net (2,488) (2,511) Total loans held-for-portfolio, gross 901,733 894,478 Allowance for credit losses — loans (8,585) (8,760) Total loans held-for-portfolio, net $ 893,148 $ 885,718 (1) Includes premiums resulting from purchased loans of $410 thousand related to one-to-four family loans, $252 thousand related to commercial and multifamily loans, and $73 thousand related to commercial business loans as of September 30, 2024. Includes premiums resulting from purchased loans of $465 thousand related to one-to-four family loans, $280 thousand related to commercial and multifamily loans, and $84 thousand related to commercial business loans as of December 31, 2023. As of September 30, 2024, there were three collateral dependent mortgage loans to consumers, totaling $355 thousand, that were in process of foreclosure. These loans in process of foreclosure all relate to judicial foreclosures for deceased borrowers. The following table presents a summary of activity in the ACL on loans and unfunded commitments for the periods indicated (in thousands): Three Months Ended September 30, 2024 2023 ACL - Loans Reserve for Unfunded Loan Commitments ACL ACL - Loans Reserve for Unfunded Loan Commitments ACL Balance at beginning of period $ 8,493 $ 245 $ 8,738 $ 8,217 $ 706 $ 8,923 Provision for (release of) credit losses during the period 106 (98) 8 224 (149) 75 Net charge-offs during the period (14) — (14) (3) — (3) Balance at end of period $ 8,585 $ 147 $ 8,732 $ 8,438 $ 557 $ 8,995 Nine months ended September 30, 2024 2024 2023 ACL - Loans Reserve for Unfunded Loan Commitments ACL ACL - Loans Reserve for Unfunded Loan Commitments ACL Balance at beginning of period $ 8,760 $ 193 $ 8,953 $ 7,599 $ 335 $ 7,934 Adoption of ASU 2016-13 (1) — — — 760 695 1,455 (Release of) provision for credit losses during the period (88) (46) (134) 227 (473) (246) Net charge-offs during the period (87) — (87) (148) — (148) Balance at end of period $ 8,585 $ 147 $ 8,732 $ 8,438 $ 557 $ 8,995 (1) Represents the impact of adopting ASU 2016-13, Financial Instruments — Credit Losses on January 1, 2023. Since that date, as a result of adopting ASU 2016-13, our methodology to compute our ACL has been based on a current expected credit loss methodology, rather than the previously applied incurred loss methodology. Accrued interest receivable on loans receivable totaled $3.4 million at both September 30, 2024 and December 31, 2023, in the accompanying Condensed Consolidated Balance Sheets. Accrued interest receivable is excluded from the ACL. The ACL is measured using the current expected credit losses (“CECL”) approach for financial instruments measured at amortized cost and for other commitments to extend credit. CECL requires the immediate recognition of estimated credit losses expected to occur over the estimated remaining life of the asset. The forward-looking concept of CECL requires loss estimates to consider historical experience, current conditions and reasonable and supportable forecasts. We estimate the ACL using relevant information from internal and external sources, related to past events, current conditions, and a reasonable and supportable forecast. The ACL is measured on a collective (segment) basis when similar risk characteristics exist. Historical credit loss experience for both the Company and segment-specific peers provides the basis for the estimate of expected credit losses. Segments are based upon federal call report segmentation. The reserve was applied on a loan-by-loan basis and condensed into the applicable segments reported below. The ACL is determined using quantitative and qualitative analysis. The quantitative analysis utilizes macroeconomic variables to establish a quantitative relationship between economic conditions and loan performance through an economic cycle. Qualitative adjustments include but are not limited to changes in lending policies; changes in nature and volume of the portfolio; change in staff experience level; changes in the volume or trends of classified loans, delinquencies, and nonaccrual loans; concentration risk; value of underlying collateral; competitive, legal, and regulatory factors; changes in the loan review system; and economic conditions. We evaluate our ACL policy and judgments on an ongoing basis and update them as necessary based on changing conditions. See “Note 1—Organization and Significant Accounting Policies” in the Company’s 2023 Form 10-K for further information on the Company’s ACL accounting policy. The following tables summarize the activity in the ACL - loans for the periods indicated (in thousands): Three Months Ended September 30, 2024 Beginning Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 2,798 $ — $ — $ 14 $ 2,812 Home equity 199 — — 15 214 Commercial and multifamily 1,130 — — 155 1,285 Construction and land 1,072 — — (302) 770 Manufactured homes 938 — — 53 991 Floating homes 1,910 — — 150 2,060 Other consumer (1) 348 (20) 6 23 357 Commercial business 98 — — (2) 96 Total $ 8,493 $ (20) $ 6 $ 106 $ 8,585 (1) During the three months ended September 30, 2024, the gross charge-offs related entirely to deposit overdrafts that were charged off. Three Months Ended September 30, 2023 Beginning Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 1,997 $ — $ — $ 8 $ 2,005 Home equity 194 — — 12 206 Commercial and multifamily 2,268 — — 77 2,345 Construction and land 2,498 — — 123 2,621 Manufactured homes 309 — — 21 330 Floating homes 586 — — 19 605 Other consumer (1) 160 (27) 24 (10) 147 Commercial business 205 — — (26) 179 Total $ 8,217 $ (27) $ 24 $ 224 $ 8,438 (1) During the three months ended September 30, 2023, the gross charge-offs related entirely to deposit overdrafts that were charged off. Nine Months Ended September 30, 2024 Beginning Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 2,630 $ — $ — $ 182 $ 2,812 Home equity 185 — — 29 214 Commercial and multifamily 1,070 — — 215 1,285 Construction and land 1,349 — — (579) 770 Manufactured homes (1) 971 (23) — 43 991 Floating homes 2,022 — — 38 2,060 Other consumer (2) 426 (80) 16 (5) 357 Commercial business 107 — — (11) 96 Total $ 8,760 $ (103) $ 16 $ (88) $ 8,585 (1) During the nine months ended September 30, 2024, there was one manufactured home loan that was charged off and then subsequently foreclosed upon. (2) During the nine months ended September 30, 2024, the gross charge-offs related entirely to deposit overdrafts that were charged off. Nine Months Ended September 30, 2023 Beginning Impact of Adoption of ASU 2016-13 Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 1,771 $ 355 $ — $ — $ (121) $ 2,005 Home equity (1) 132 69 (25) — 30 206 Commercial and multifamily 2,501 (320) — — 164 2,345 Construction and land 1,209 1,359 — — 53 2,621 Manufactured homes 462 (180) — — 48 330 Floating homes 456 166 — — (17) 605 Other consumer (2) 324 (163) (159) 36 109 147 Commercial business 256 (35) — — (42) 179 Unallocated 488 (491) — — 3 — Total $ 7,599 $ 760 $ (184) $ 36 $ 227 $ 8,438 (1) During the nine months ended September 30, 2023, there was one revolving home equity loan that was charged off. (2) During the nine months ended September 30, 2023, the gross charge-offs related entirely to deposit overdrafts that were charged off. Credit Quality Indicators. Federal regulations provide for the classification of lower quality loans and other assets (such as OREO and repossessed assets), as well as debt and equity securities, considered as "substandard," "doubtful" or "loss." An asset is considered "substandard" if it is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. "Substandard" assets include those characterized by the "distinct possibility" that the insured institution will sustain "some loss" if the deficiencies are not corrected. Assets classified as "doubtful" have all of the weaknesses in those classified "substandard," with the added characteristic that the weaknesses present make "collection or liquidation in full," on the basis of currently existing facts, conditions and values, "highly questionable and improbable." Assets classified as "loss" are those considered "uncollectible" and of such little value that their continuance as assets without the establishment of a specific loss reserve is not warranted. Management regularly reviews loans in the portfolio to assess credit quality indicators and to determine appropriate loan classification and grading. The grades for watch and special mention loans are used by the Company to identify and track potential problem loans which do not rise to the levels described for substandard, doubtful, or loss. These are loans which have been criticized and deserve management's close attention based upon known characteristics such as periodic payment delinquency, failure to comply with contractual terms of the loan, or collateral concerns. Loans identified as watch, special mention, substandard, doubtful, or loss are subject to additional problem loan reporting to management every three months. When we classify problem assets as either substandard or doubtful, we may determine that these assets should be individually analyzed if they no longer share common risk characteristics with the rest of the portfolio. When we classify problem assets as a loss, we are required to charge off those assets in the period in which they are deemed uncollectible. Our determination as to the classification of our assets and the amount of our valuation allowances is subject to review by the FDIC (the Bank’s federal regulator) and the Washington Department of Financial Institutions (the Bank’s state banking regulator), which can order the establishment of additional credit loss allowances. Assets which do not currently expose us to sufficient risk to warrant classification as substandard or doubtful but possess weaknesses are required to be designated as special mention. There were no loans classified as doubtful or loss as of September 30, 2024 and December 31, 2023. At September 30, 2024 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Converted to Term 2024 2023 2022 2021 2020 Prior Total One-to-four family: Pass $ 23,702 $ 22,546 $ 78,999 $ 99,405 $ 14,208 $ 32,278 $ — $ — $ 271,138 Substandard — — 259 107 — 319 — — 685 Total one-to-four family $ 23,702 $ 22,546 $ 79,258 $ 99,512 $ 14,208 $ 32,597 $ — $ — $ 271,823 Home equity: Pass $ 2,455 $ 3,131 $ 2,467 $ 1,007 $ 213 $ 1,357 $ 13,478 $ 908 $ 25,016 Substandard — — — — — 58 274 67 399 Total home equity $ 2,455 $ 3,131 $ 2,467 $ 1,007 $ 213 $ 1,415 $ 13,752 $ 975 $ 25,415 Commercial and multifamily: Pass $ 20,001 $ 20,846 $ 94,546 $ 104,015 $ 21,826 $ 84,003 $ — $ — $ 345,237 Special mention — — — — 1,299 1,379 — — 2,678 Substandard — — 2,857 — 2,178 4,461 — — 9,496 Total commercial and multifamily $ 20,001 $ 20,846 $ 97,403 $ 104,015 $ 25,303 $ 89,843 $ — $ — $ 357,411 Construction and land: Pass $ 18,267 $ 23,946 $ 2,439 $ 20,814 $ 599 $ 1,912 $ — $ — $ 67,977 Special mention — — 16,554 — — — — — 16,554 Substandard — — 70 — — 701 — — 771 Total construction and land $ 18,267 $ 23,946 $ 19,063 $ 20,814 $ 599 $ 2,613 $ — $ — $ 85,302 Manufactured homes: Pass $ 7,706 $ 12,486 $ 7,108 $ 3,921 $ 1,957 $ 6,531 $ — $ — $ 39,709 Substandard — 310 62 — — 149 — — 521 Total manufactured homes $ 7,706 $ 12,796 $ 7,170 $ 3,921 $ 1,957 $ 6,680 $ — $ — $ 40,230 Floating homes: Pass $ 19,743 $ 6,568 $ 16,305 $ 24,064 $ 6,098 $ 10,594 $ — $ — $ 83,372 Substandard — — 2,363 — — — — — 2,363 Total floating homes $ 19,743 $ 6,568 $ 18,668 $ 24,064 $ 6,098 $ 10,594 $ — $ — $ 85,735 Other consumer: Pass $ 2,317 $ 3,543 $ 656 $ 3,661 $ 5,433 $ 2,114 $ 527 $ — $ 18,251 Substandard 5 — 23 1 — — — — 29 Total other consumer $ 2,322 $ 3,543 $ 679 $ 3,662 $ 5,433 $ 2,114 $ 527 $ — $ 18,280 Commercial business: Pass $ 224 $ 716 $ 1,847 $ 3,178 $ 291 $ 4,047 $ 7,171 $ — $ 17,474 Substandard 40 — — — — 23 — — 63 Total commercial business $ 264 $ 716 $ 1,847 $ 3,178 $ 291 $ 4,070 $ 7,171 $ — $ 17,537 Total loans Pass $ 94,415 $ 93,782 $ 204,367 $ 260,065 $ 50,625 $ 142,836 $ 21,176 $ 908 $ 868,174 Special mention — — 16,554 — 1,299 1,379 — — 19,232 Substandard 45 310 5,634 108 2,178 5,711 274 67 14,327 Total loans $ 94,460 $ 94,092 $ 226,555 $ 260,173 $ 54,102 $ 149,926 $ 21,450 $ 975 $ 901,733 At December 31, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis 2023 2022 2021 2020 2019 Prior Total One-to-four family: Pass $ 26,272 $ 84,467 $ 110,488 $ 16,126 $ 13,029 $ 28,139 $ — $ — $ 278,521 Substandard — 259 119 — 260 553 — — 1,191 Total one-to-four family $ 26,272 $ 84,726 $ 110,607 $ 16,126 $ 13,289 $ 28,692 $ — $ — $ 279,712 Home equity: Pass $ 3,963 $ 2,783 $ 1,072 $ 302 $ 95 $ 1,608 $ 12,982 $ 2 $ 22,807 Substandard — — — — — 63 445 — 508 Total home equity $ 3,963 $ 2,783 $ 1,072 $ 302 $ 95 $ 1,671 $ 13,427 $ 2 $ 23,315 Commercial and multifamily: Pass $ 21,144 $ 75,960 $ 93,932 $ 22,731 $ 29,822 $ 58,388 $ — $ — $ 301,977 Special mention — — — 3,365 — 350 — — 3,715 Substandard — 1,036 — 1,317 5,134 1,121 — — 8,608 Total commercial and multifamily $ 21,144 $ 76,996 $ 93,932 $ 27,413 $ 34,956 $ 59,859 $ — $ — $ 314,300 Construction and land: Pass $ 32,057 $ 53,302 $ 36,285 $ 967 $ 601 $ 2,031 $ — $ — $ 125,243 Substandard — — — — 689 44 — — 733 Total construction and land $ 32,057 $ 53,302 $ 36,285 $ 967 $ 1,290 $ 2,075 $ — $ — $ 125,976 Manufactured homes: Pass $ 13,696 $ 7,958 $ 4,365 $ 2,160 $ 2,075 $ 5,498 $ — $ — $ 35,752 Substandard 115 46 — 22 86 64 — — 333 Total manufactured homes $ 13,811 $ 8,004 $ 4,365 $ 2,182 $ 2,161 $ 5,562 $ — $ — $ 36,085 Floating homes: Pass $ 8,779 $ 21,555 $ 26,196 $ 6,471 $ 1,865 $ 9,867 $ — $ — $ 74,733 Total floating homes $ 8,779 $ 21,555 $ 26,196 $ 6,471 $ 1,865 $ 9,867 $ — $ — $ 74,733 Other consumer: Pass $ 4,629 $ 1,845 $ 3,884 $ 5,883 $ 598 $ 2,237 $ 539 $ — $ 19,615 Total other consumer $ 4,629 $ 1,845 $ 3,884 $ 5,883 $ 598 $ 2,237 $ 539 — $ 19,615 Commercial business: Pass $ 987 $ 437 $ 3,564 $ 400 $ 227 $ 5,848 $ 6,854 $ — $ 18,317 Substandard 2,128 53 204 — — — 40 — 2,425 Total commercial business $ 3,115 $ 490 $ 3,768 $ 400 $ 227 $ 5,848 $ 6,894 $ — $ 20,742 Total loans Pass $ 111,527 $ 248,307 $ 279,786 $ 55,040 $ 48,312 $ 113,616 $ 20,375 $ 2 $ 876,965 Special mention — — — 3,365 — 350 — — 3,715 Substandard 2,243 1,394 323 1,339 6,169 1,845 485 — 13,798 Total loans $ 113,770 $ 249,701 $ 280,109 $ 59,744 $ 54,481 $ 115,811 $ 20,860 $ 2 $ 894,478 Nonaccrual and Past Due Loans . Loans are considered past due if the required principal and interest payments were not received as of the dates such payments were due. The following table presents the amortized cost of nonaccrual loans as of the dates indicated, by type of loan (in thousands): September 30, 2024 December 31, 2023 Total Total Total Total One-to-four family $ 745 $ 745 $ 1,108 $ 848 Home equity 338 338 84 84 Commercial and multifamily 4,719 4,719 — — Construction and land 25 25 — — Manufactured homes 230 208 228 228 Floating homes 2,377 2,377 — — Other consumer 32 26 1 — Commercial business 23 23 2,135 2,135 Total $ 8,489 $ 8,461 $ 3,556 $ 3,295 The following tables present the aging of past due loans, based on amortized cost, as of the dates indicated, by type of loan (in thousands): September 30, 2024 30-59 Days 60-89 Days 90 Days and Greater Past Due 90 Days and Greater Past Due and Accruing Total Past Current Total Loans One-to-four family $ — $ 168 $ 525 $ — $ 693 $ 271,130 $ 271,823 Home equity — — 341 — 341 25,074 25,415 Commercial and multifamily 151 — 4,713 — 4,864 352,547 357,411 Construction and land — — — — — 85,302 85,302 Manufactured homes — 445 86 — 531 39,699 40,230 Floating homes — — — — — 85,735 85,735 Other consumer 8 43 2 — 53 18,227 18,280 Commercial business — 23 — — 23 17,514 17,537 Total $ 159 $ 679 $ 5,667 $ — $ 6,504 $ 895,229 $ 901,733 December 31, 2023 30-59 Days 60-89 Days 90 Days and Greater Past Due 90 Days and Greater Past Due and Accruing Total Past Current Total Loans One-to-four family $ 168 $ 870 $ 663 $ — $ 1,701 $ 278,011 $ 279,712 Home equity 345 — 84 — 429 22,893 23,322 Commercial and multifamily 4,116 1,036 — — 5,151 309,149 314,300 Construction and land — — — — — 125,940 125,940 Manufactured homes 295 49 189 — 533 35,552 36,085 Floating homes — 3,226 — — 3,226 71,507 74,733 Other consumer 34 31 — — 65 19,550 19,615 Commercial business 66 — 2,128 — 2,194 18,551 20,745 Total $ 5,024 $ 5,211 $ 3,064 $ — $ 13,299 $ 881,153 $ 894,452 Loan Modifications to Borrowers Experiencing Financial Difficulty. The Company has granted modifications which can generally be described in the following categories: Principal Forgiveness : A modification in which the principal is reduced. Rate Modification : A modification in which the interest rate is changed. Term Modification : A modification in which the maturity date, timing of payments or frequency of payments is changed. Payment Modification : A modification in which the dollar amount of the payment is changed. Interest only modifications in which a loan is converted to interest only payments for a period of time are included in this category. Combination Modification : Any other type of modification, including the use of multiple categories above. At September 30, 2024, the Company had no commitments to extend additional credit to borrowers owing loan receivables with modified terms. There were no loans modified within the three and nine months ended September 30, 2024 and 2023. We have no modified loan receivables that have subsequently defaulted at September 30, 2024 and December 31, 2023. Troubled debt restructurings (“TDRs”). Prior to the adoption of ASU 2022-02, Financial Instruments—Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures , the Company had granted a variety of concessions to borrowers in the form of loan modifications that were considered TDRs. Loans classified as legacy TDRs totaled $1.5 million and $1.7 million at September 30, 2024 and December 31, 2023, respectively. Collateral Dependent Loans . Loans that have been classified as collateral dependent are loans where substantially all repayment of the loan is expected to come from the operation of or eventual liquidation of the collateral. Collateral dependent loans are evaluated individually for purposes of determining the ACL, which is determined based on the estimated fair value of the collateral. Estimates for costs to sell are included in the determination of the ACL when liquidation of the collateral is anticipated. In cases where the loan is well secured and the estimated fair value of the collateral exceeds the amortized cost of the loan, no ACL is recorded. The following tables summarize collateral dependent loans by collateral type as of the dates indicated (in thousands): September 30, 2024 Commercial Real Estate Residential Real Estate Land Other Residential RVs/Automobiles Business Assets Total Real estate loans: One- to four- family $ — $ 475 $ — $ 368 $ — $ — $ 843 Home equity — 338 — — — — 338 Commercial and multifamily 4,719 — — — — — 4,719 Construction and land — — 25 — — — 25 Total real estate loans 4,719 813 25 368 — — 5,925 Consumer loans: Manufactured homes — — — 230 — — 230 Floating homes — — — 2,377 — — 2,377 Other consumer — — — — 26 — 26 Total consumer loans — — — 2,607 26 — 2,633 Commercial business loans — — — — — 23 23 Total loans $ 4,719 $ 813 $ 25 $ 2,975 $ 26 $ 23 $ 8,581 December 31, 2023 Commercial Real Estate Residential Real Estate Land Other Residential RVs/Automobiles Business Assets Total Real estate loans: One- to four- family $ — $ 664 $ — $ 545 $ — $ — $ 1,209 Home equity — 84 — — — — 84 Total real estate loans — 748 — 545 — — 1,293 Consumer loans: Manufactured homes — — — 228 — — 228 Total consumer loans — — — 228 — — 228 Commercial business loans — — — 2,135 — — 2,135 Total loans $ — $ 748 $ — $ 2,908 $ — $ — $ 3,656

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company determines the fair values of its financial instruments based on the requirements established in ASC 820 , Fair Value Measurements (“ASC 820”), which provides a framework for measuring fair value in accordance with U.S. GAAP and requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 defines fair values for financial instruments as the exit price, the price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. The Company’s fair values for financial instruments at September 30, 2024 and December 31, 2023 were determined based on these requirements. The following methods and assumptions were used to estimate the fair value of the Company’s financial instruments: Cash and cash equivalents - The estimated fair value is equal to the carrying amount. Available-for-sale securities – AFS securities are recorded at fair value based on quoted market prices, if available (Level 1). If quoted market prices are not available, management utilizes third-party pricing services or broker quotations from dealers in the specific instruments (Level 2). Level 2 securities include those traded on an active exchange, as well as U.S. government securities. Held-to-maturity securities – The fair value is based on quoted market prices, if available. If quoted market prices are not available, management utilizes third-party pricing services or broker quotations from dealers in the specific instruments. Level 2 securities include those traded on an active exchange, as well as U.S. government securities. Loans held-for-sale - The fair value of fixed-rate one-to-four family loans is based on whole loan forward prices obtained from government sponsored enterprises. Loans held-for-portfolio - The estimated fair value of loans held-for-portfolio consists of a credit adjustment, to reflect the estimated adjustment to the carrying value of the loans due to credit-related factors, and a yield adjustment, to reflect the estimated adjustment to the carrying value of the loans due to a differential in yield between the portfolio loan yields and estimated current market rate yields on loans with similar characteristics. The estimated fair values of loans held-for-portfolio reflect exit price assumptions. The liquidity premiums/discounts are part of the valuation for exit pricing. Mortgage servicing rights –The fair value of MSRs is determined through a discounted cash flow analysis, which uses interest rates, prepayment speeds, discount rates, and delinquency rate assumptions as inputs. Time deposits - The estimated fair value of time deposits is based on the difference between interest rates paid on the Company’s time deposits and current market rates for time deposits with comparable characteristics. Borrowings - The fair value of borrowings is estimated using the contractual cash flows of each debt instrument discounted using the Company’s current incremental borrowing rates for similar types of borrowing arrangements. Subordinated notes - The fair value of subordinated notes is estimated using discounted cash flows based on current borrowing rates for similar long-term debt instruments with similar terms and remaining time to maturity. A description of the valuation methodologies used for collateral dependent loans, OREO and repossessed assets and off-balance sheet loan commitments is as follows: Collateral dependent loans - The fair value of collateral dependent loans is based on the current appraised value of the collateral less estimated costs to sell. OREO and repossessed assets – The fair value of OREO and repossessed assets is based on the current appraised value of the collateral less estimated costs to sell. Off-balance sheet financial instruments - The fair value of off-balance sheet financial instruments, which consisted entirely of loan commitments at September 30, 2024 and December 31, 2023, is estimated based on fees charged to others to enter into similar agreements, taking into account the remaining terms of the agreements and credit standing of the Company’s clients. The estimated fair value of these commitments was not significant at September 30, 2024 and December 31, 2023. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the lowest level of inputs that is significant to the measurement is used to determine the hierarchy for the entire asset or liability. Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincides with the Company’s quarterly valuation process. There were no transfers between levels during the three and nine months ended September 30, 2024 and 2023. The following tables present information about the level in the fair value hierarchy for the Company’s financial assets and liabilities, whether recognized or recorded at fair value or not as of the dates indicated (in thousands): September 30, 2024 Fair Value Measurements Using: Carrying Estimated Level 1 Level 2 Level 3 FINANCIAL ASSETS: Cash and cash equivalents $ 148,930 $ 148,930 $ 148,930 $ — $ — Available-for-sale securities 8,032 8,032 — 8,032 — Held-to-maturity securities 2,139 1,779 — 1,779 — Loans held-for-sale 65 65 — 65 — Loans held-for-portfolio, net 893,148 861,275 — — 861,275 Mortgage servicing rights 4,665 4,665 — — 4,665 FINANCIAL LIABILITIES: Time deposits 304,630 305,462 — 305,462 — Borrowings 40,000 40,000 — 40,000 — Subordinated notes 11,749 11,959 — 11,959 — December 31, 2023 Fair Value Measurements Using: Carrying Estimated Level 1 Level 2 Level 3 FINANCIAL ASSETS: Cash and cash equivalents $ 49,690 $ 49,690 $ 49,690 $ — $ — Available-for-sale securities 8,287 8,287 — 8,287 — Held-to-maturity securities 2,166 1,787 — 1,787 — Loans held-for-sale 603 603 — 603 — Loans held-for-portfolio, net 885,718 837,579 — — 837,579 Mortgage servicing rights 4,632 4,632 — — 4,632 FINANCIAL LIABILITIES: Time deposits 307,962 308,604 — 308,604 — Borrowings 40,000 40,000 — 40,000 — Subordinated notes 11,717 9,996 — 9,996 — The following tables present the balance of assets measured at fair value on a recurring basis as of the dates indicated (in thousands): Fair Value at September 30, 2024 Description Total Level 1 Level 2 Level 3 Municipal bonds $ 5,485 $ — $ 5,485 $ — Agency mortgage-backed securities 2,547 — 2,547 — Mortgage servicing rights 4,665 — — 4,665 Fair Value at December 31, 2023 Description Total Level 1 Level 2 Level 3 Municipal bonds $ 5,528 $ — $ 5,528 $ — Agency mortgage-backed securities 2,759 — 2,759 — Mortgage servicing rights 4,632 — — 4,632 The following tables provide a description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a recurring basis as of the dates indicated: September 30, 2024 Financial Instrument Valuation Technique Unobservable Input(s) Range Mortgage Servicing Rights Discounted cash flow Prepayment speed assumption 110%-192% (120%) Discount rate 10.7%-14.8% (12.7%) December 31, 2023 Financial Instrument Valuation Technique Unobservable Input(s) Range Mortgage Servicing Rights Discounted cash flow Prepayment speed assumption 109%-208% (129%) Discount rate 10.5%-14.5% (12.5%) Generally, any significant increases in the prepayment speed assumption and discount rate utilized in the fair value measurement of the MSRs will result in a negative fair value adjustment (and decrease in the fair value measurement). Conversely, a significant decrease in the prepayment speed assumption and discount rate will result in a positive fair value adjustment (and increase in the fair value measurement). An increase in the weighted average life assumptions will result in a decrease in the prepayment speed assumption and conversely, a decrease in the weighted average life assumptions will result in an increase in the prepayment speed assumption. As a result of the difficulty in observing certain significant valuation inputs affecting our “Level 3” fair value assets, we are required to make judgments regarding these items’ fair values. There were no assets or liabilities (excluding MSRs) measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the three and nine months ended September 30, 2024 and 2023. MSRs are measured at fair value using significant unobservable inputs (Level 3) on a recurring basis, and a reconciliation of this asset can be found in “Note 6—Mortgage Servicing Rights. The following tables present the balance of assets measured at fair value on a nonrecurring basis at the dates indicated (in thousands): Fair Value at September 30, 2024 Total Level 1 Level 2 Level 3 OREO and repossessed assets $ 115 $ — $ — $ 115 Collateral dependent loans 8,581 — — 8,581 Fair Value at December 31, 2023 Total Level 1 Level 2 Level 3 OREO and repossessed assets $ 575 $ — $ — $ 575 Collateral dependent loans 3,656 — — 3,656 There were no liabilities carried at fair value, measured on a recurring or nonrecurring basis, at both September 30, 2024 and December 31, 2023.

Mortgage Servicing Rights

Mortgage Servicing Rights	9 Months Ended
	Sep. 30, 2024
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights The unpaid principal balance of the Company’s mortgage servicing rights portfolio totaled $432.0 million at September 30, 2024 compared to $448.9 million at December 31, 2023. Of these total balances, the unpaid principal balance of loans serviced for Federal National Mortgage Association (“Fannie Mae”) at September 30, 2024 and December 31, 2023 were $429.9 million and $446.8 million, respectively. The unpaid principal balance of loans serviced for other financial institutions totaled $2.1 million at September 30, 2024 and $2.2 million at December 31, 2023. Loans serviced for Fannie Mae and others are not included in the Company’s financial statements as they are not assets of the Company. A summary of the change in the balance of mortgage servicing assets during the periods indicated were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Beginning balance, at fair value $ 4,540 $ 4,726 $ 4,632 $ 4,687 Servicing rights that result from transfers and sale of financial assets 24 33 114 117 Changes in fair value: Due to changes in model inputs or assumptions and other (1) 101 (78) (81) (123) Ending balance, at fair value $ 4,665 $ 4,681 $ 4,665 $ 4,681 (1) Represents changes due to collection/realization of expected cash flows and curtailments. The key economic assumptions used in determining the fair value of mortgage servicing rights at the dates indicated are as follows: September 30, 2024 December 31, 2023 Prepayment speed (Public Securities Association “PSA” model) 120 % 129 % Weighted-average life 7.6 years 7.7 years Weighted average discount rate 12.7 % 12.5 % The amount of contractually specified servicing, late and ancillary fees earned on mortgage servicing rights are included in

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In the normal course of operations, the Company engages in a variety of financial transactions that are not recorded in our financial statements. These transactions involve varying degrees of off-balance sheet credit, interest rate and liquidity risks. These transactions are used primarily to manage clients’ requests for funding and take the form of loan commitments and lines of credit.

Borrowings, FHLB Stock and Subo

Borrowings, FHLB Stock and Subordinated Notes	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Borrowings, FHLB Stock and Subordinated Notes	Borrowings, FHLB Stock and Subordinated Notes FHLB Advances The following tables present advances from the FHLB as of the dates indicated (dollars in thousands): September 30, 2024 December 31, 2023 FHLB advances: Short-term advances $ 15,000 $ 15,000 Long-term advances 25,000 25,000 Total $ 40,000 $ 40,000 September 30, 2024 December 31, 2023 Fixed Rate: Outstanding balance $ 40,000 $ 40,000 Interest rates ranging from 4.06 % 4.06 % Interest rates ranging to 4.35 % 4.35 % Weighted average interest rate 4.25 % 4.25 % Variable rate: Outstanding balance $ — $ — Weighted average interest rate — % — % The following table presents the maturity of our FHLB advances (dollars in thousands): September 30, Remainder of 2024 $ 15,000 2025 — 2026 15,000 2027 — 2028 10,000 Thereafter — $ 40,000 FHLB Des Moines Borrowing Capacity The Company has a loan agreement with the FHLB of Des Moines. The terms of the agreement call for a blanket pledge of a portion of the Company’s mortgage and commercial and multifamily loan portfolio based on the Company’s outstanding borrowing balance. Additionally, the Company had outstanding letters of credit from the FHLB of Des Moines to secure public deposits. The following table presents the Company’s borrowing capacity from the FHLB as of the dates indicated: September 30, 2024 December 31, 2023 Amount available to borrow under credit facility (1) $ 483,759 $ 463,541 Advance equivalent of collateral: One-to-four family mortgage loans 184,256 196,547 Commercial and multifamily mortgage loans 31,565 34,464 Home equity loans 284 348 Notional amount of letters of credit outstanding 8,000 10,000 Remaining FHLB borrowing capacity (2) $ 168,105 $ 181,360 (1) Subject to eligible pledged collateral. (2) Amount remaining from the advance equivalent of collateral less letters of credit outstanding and FHLB advances. As a member of the FHLB, the Company is required to maintain a minimum level of investment in FHLB of Des Moines stock based on specific percentages of its outstanding FHLB advances. At both September 30, 2024 and December 31, 2023, the Company had an investment of $2.4 million in FHLB of Des Moines stock. Federal Reserve Bank of San Francisco (“FRB SF”) Borrowings The Company has a borrowing agreement with the FRB SF. The terms of the agreement call for a blanket pledge of a portion of the Company’s consumer and commercial business loans based on the Company’s outstanding borrowing balance. At September 30, 2024 and December 31, 2023, the amount available to borrow under this credit facility was $21.9 million and $18.3 million, respectively, subject to eligible pledged collateral. The Company had no outstanding borrowings under this arrangement at September 30, 2024 and December 31, 2023. Other Borrowings The Company has access to an unsecured Fed Funds line of credit from Pacific Coast Banker’s Bank (“PCBB”). The line has a one year term maturing on June 30, 2025 and is renewable annually. As of September 30, 2024, the amount available under this line of credit was $20.0 million. There was no balance on this line of credit as of September 30, 2024 and December 31, 2023. Subordinated Debt

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share The following table summarizes the calculation of earnings per share for the periods indicated (in thousands, except per share data): Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net income $ 1,154 $ 1,169 $ 2,719 $ 6,228 LESS: Participating dividends - Unvested Restricted Stock Awards (“RSAs”) (3) (3) (10) (9) LESS: Income allocated to participating securities - Unvested RSAs (4) (4) (8) (31) Net income available to common stockholders - basic 1,146 1,162 2,701 6,188 ADD BACK: Income allocated to participating securities - Unvested RSAs 4 4 8 31 LESS: Income reallocated to participating securities - Unvested RSAs (4) (4) (8) (30) Net income available to common stockholders - diluted $ 1,146 $ 1,162 $ 2,701 $ 6,189 Weighted average number of shares outstanding, basic 2,544,233 2,553,773 2,541,331 2,568,899 Effect of potentially dilutive common shares 25,135 18,035 20,611 19,889 Weighted average number of shares outstanding, diluted 2,569,368 2,571,808 2,561,942 2,588,788 Earnings per share, basic $ 0.45 $ 0.45 $ 1.06 $ 2.41 Earnings per share, diluted $ 0.45 $ 0.45 $ 1.05 $ 2.39 There were no anti-dilutive securities at September 30, 2024 and 7,892 anti-dilutive securities at September 30, 2023.

Stock-based Compensation

Stock-based Compensation	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Stock-based Compensation	Stock-based Compensation Stock Options and Restricted Stock The Company currently has one active stockholder-approved stock-based compensation plan, the Amended and Restated 2013 Equity Incentive Plan (the "2013 Plan"). The 2013 Plan permits the grant of restricted stock, restricted stock units, stock options, and stock appreciation rights. The equity incentive plan approved by stockholders in 2008 (the"2008 Plan" and together with the 2013 plan, the "Plans") expired in November 2018 and no further awards may be made under the 2008 Plan; provided, however, all awards outstanding under the 2008 Plan remain outstanding in accordance with their terms. Under the 2013 Plan, 181,750 shares of common stock were approved for awards for stock options and stock appreciation rights and 116,700 shares of common stock were approved for awards for restricted stock and restricted stock units. As of September 30, 2024, on an adjusted basis, awards for stock options totaling 301,453 shares and awards for restricted stock totaling 167,114 shares of Company common stock have been granted, net of any forfeitures, to participants in the 2013 Plan and the 2008 Plan. Share-based compensation expense was $98 thousand and $291 thousand for the three and nine months ended September 30, 2024, and $88 thousand and $368 thousand for the three and nine months ended September 30, 2023, respectively. Stock Option Awards All stock option awards granted under the 2008 Plan vested in 20 percent annual increments commencing one year from the grant date in accordance with the requirements of the 2008 Plan. The stock option awards granted to date under the 2013 Plan provide for immediate vesting of a portion of the award with the balance of the award vesting on the anniversary dates of the grant date in equal annual installments over a period of one The following is a summary of the Company’s stock option award activity during the three months ended September 30, 2024 (dollars in thousands, except per share amounts): Shares Weighted- Weighted-Average Aggregate Outstanding at July 1, 2024 85,512 $ 33.00 5.29 $ 855 Granted — — Exercised (11,864) 18.36 Outstanding at September 30, 2024 73,648 35.36 5.80 1,336 Exercisable 54,167 33.70 4.92 1,073 Expected to vest, assuming a 0% forfeiture rate over the vesting term 73,648 $ 35.36 5.80 $ 1,336 The following is a summary of the Company’s stock option award activity during the nine months ended September 30, 2024 (dollars in thousands, except per share amounts): Shares Weighted- Weighted-Average Aggregate Outstanding at January 1, 2024 80,735 $ 32.28 5.36 $ 603 Granted 6,469 39.89 Exercised (13,299) 18.85 Expired (257) 36.57 Outstanding at September 30, 2024 73,648 35.36 5.80 1,336 Exercisable 54,167 33.70 4.92 1,073 Expected to vest, assuming a 0% forfeiture rate over the vesting term 73,648 $ 35.36 5.80 $ 1,336 As of September 30, 2024, there was $144 thousand of total unrecognized compensation cost related to non-vested stock options granted under the Plans. This cost is expected to be recognized over the remaining weighted-average vesting period of approximately 2.0 years. The total intrinsic value of the shares exercised during the three and nine months ended September 30, 2024 was $294 thousand and $317 thousand, and for the three and nine months ended September 30, 2023 was $20 thousand and $408 thousand, respectively. The fair value of each option is estimated as of the grant date using the Black-Scholes option-pricing model. The fair values of options granted during the nine months ended September 30, 2024 and 2023 were determined using the following weighted-average assumptions as of the grant date. Nine Months Ended September 30, 2024 2023 Annual dividend yield 1.69 % 1.69 % Expected volatility 28.15 % 28.15 % Risk-free interest rate 4.06 % 3.60 % Expected term 6.00 years 6.00 years Weighted-average grant date fair value per option granted $ 11.64 $ 11.33 There were no options granted during the three months ended September 30, 2024 and September 30, 2023, respectively . Restricted Stock Awards The fair value of the restricted stock awards is equal to the fair value of the Company's common stock at the date of grant. Compensation expense is recognized over the vesting periods of the awards. The restricted stock awards granted under the 2008 Plan vested in 20% annual increments commencing one year from the grant date. The restricted stock awards granted to date under the 2013 Plan provide for immediate vesting of a portion of the award with the balance of the award vesting on the anniversary dates of the grant date in equal annual installments over a period of one The following is a summary of the Company’s non-vested restricted stock award activity during the three months ended September 30, 2024: Shares Weighted-Average Aggregate Intrinsic Value Per Share Non-Vested at July 1, 2024 17,143 $ 39.93 Granted — — Vested — — Forfeited — — Non-Vested at September 30, 2024 17,143 $ 39.93 $ 52.51 Expected to vest assuming a 0% forfeiture rate over the vesting term 17,143 $ 39.93 $ 52.51 The following is a summary of the Company’s non-vested restricted stock award activity during the nine months ended September 30, 2024 Shares Weighted-Average Aggregate Intrinsic Value Per Share Non-Vested at January 1, 2024 15,967 $ 39.20 Granted 8,048 $ 39.89 Vested (6,872) $ 38.19 Non-Vested at September 30, 2024 17,143 $ 39.93 $ 52.51 Expected to vest assuming a 0% forfeiture rate over the vesting term 17,143 $ 39.93 $ 52.51 As of September 30, 2024, there was $482 thousand of unrecognized compensation cost related to non-vested restricted stock granted under the Plans. This cost is expected to be recognized over the remaining weighted-average vesting period of approximately 2.0 years. The total fair value of shares that vested during the nine months ended September 30, 2024 and 2023 was $262 thousand and $370 thousand, respectively. The weighted average grant date fair value per share for restricted stock awards granted during the nine months ended September 30, 2024 and 2023 was $39.89 and $40.13, respectively. Employee Stock Ownership Plan The fair value of the 169,778 shares held by the Company’s Employee Stock Ownership Plan (the “ESOP”) trust was $9.1 million at September 30, 2024. ESOP compensation expense included in salaries and benefits was $189 thousand and $567 thousand for the three and nine months ended September 30, 2024, and $204 thousand and $612 thousand for the three and nine months ended September 30, 2023.

Leases

Leases	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Leases	Leases We have operating leases for branch locations, a loan production office, our corporate office and in the past, for certain equipment. The term for our leases begins on the date we become legally obligated for the rent payments or we take possession of the building premises, whichever is earlier. Generally, our real estate leases have initial terms of three typically include one renewal option. As of September 30, 2024, our leases had remaining terms ranging from five months to 4.8 years. The operating leases require us to pay property taxes and operating expenses for the properties. The following table presents the lease right-of-use assets and lease liabilities recorded on the Condensed Consolidated Balance Sheets at the dates indicated (in thousands): September 30, December 31, Operating lease right-of-use assets $ 3,779 $ 4,496 Operating lease liabilities $ 4,079 $ 4,821 The following table presents the components of lease expense for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Operating lease expense Office leases $ 270 $ 270 $ 811 $ 808 Sublease income — (3) (4) (9) Net lease expense $ 270 $ 267 $ 807 $ 799 The following table presents the schedule of lease liabilities at the date indicated (in thousands): September 30, 2024 Remainder of 2024 $ 994 2025 934 2026 953 2027 917 2028 546 Thereafter — Total lease payments 4,344 Less: Present value discount 265 Present value of lease liabilities $ 4,079 Lease term and discount rate by lease type consisted of the following at the dates indicated: September 30, December 31, Weighted-average remaining lease term: Office leases 4.5 years 5.2 years Weighted-average discount rate (annualized): Office leases 2.78 % 2.77 % Supplemental cash flow information related to leases was as follows for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Cash paid for amounts included in the measurement of lease liabilities for operating leases: Operating cash flows Office leases $ 278 $ 277 $ 836 $ 815

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On October 30, 2024, the Company announced that its Board of Directors declared a quarterly cash dividend of $0.19 per common share, payable on November 26, 2024 to stockholders of record at the close of business on November 12, 2024.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net income	$ 1,154	$ 1,169	$ 2,719	$ 6,228

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying financial information is unaudited and has been prepared from the consolidated financial statements of Sound Financial Bancorp, Inc, and its wholly owned subsidiaries, Sound Community Bank and Sound Community Insurance Agency, Inc. References in this document to “Sound Financial Bancorp” refer to Sound Financial Bancorp, Inc. and references to the “Bank” refer to Sound Community Bank. References to “we,” “us,” and “our” or the “Company” refer to Sound Financial Bancorp, the Bank and Sound Community Insurance Agency, Inc., collectively, unless the context otherwise requires. These unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission (“SEC”). In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations for the periods presented have been included. Certain information and disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. These unaudited financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, as filed with the SEC on March 21, 2024 (“2023 Form 10-K”). The results for the interim periods are not necessarily indicative of results for a full year or any other future period. We have not made any changes in our significant accounting policies from those disclosed in the 2023 Form 10-K.
Accounting Pronouncements Recently Issued or Adopted	Accounting Pronouncements Recently Issued or Adopted On March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2020-04, " Reference Rate Reform" ("Topic 848"). This ASU provides optional guidance for a limited time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments in this update apply to modifications to eligible contracts (e.g., loans, debt securities, derivatives, borrowings) that replace a reference rate affected by reference rate reform (including rates referenced in fallback provisions) and contemporaneous modifications of other contract terms related to the replacement of the reference rate (including contract modifications to add or change fallback provisions). The following optional expedients for applying the requirements of certain Topics or Industry Subtopics in the related Codification are permitted for contracts that are modified because of reference rate reform and that meet certain scope guidance: 1) Modifications of contracts within the scope of Topics 310, Receivables, and 470, Debt, should be accounted for by prospectively adjusting the effective interest rate; 2) Modifications of contracts within the scope of Topics 840, Leases, and 842, Leases, should be accounted for as a continuation of the existing contracts with no reassessments of the lease classification and the discount rate (for example, the incremental borrowing rate) or remeasurements of lease payments that otherwise would be required under those Topics for modifications not accounted for as separate contracts; and 3) Modifications of contracts do not require an entity to reassess its original conclusion about whether that contract contains an embedded derivative that is clearly and closely related to the economic characteristics and risks of the host contract under Subtopic 815-15, Derivatives and Hedging— Embedded Derivatives. ASU 2020-04 has not had, and is not expected to have, a material impact on the Company’s consolidated financial statements. In January 2021, ASU 2021-01 updated amendments in the new ASU to clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. The ASU also amends the expedients and exceptions in Topic 848 to capture the incremental consequences of the scope clarification. The amendments in this ASU have differing effective dates, beginning with interim periods including and subsequent to March 12, 2020 through December 31, 2022. Based upon amendments provided in ASU 2022-06 discussed below, provisions of ASU 2021-01 can now generally be applied through December 31, 2024. ASU 2021-01 has not had, and is not expected to have, a material impact on the Company’s consolidated financial statements. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. ASU 2022-06 extends the period of time entities can utilize the reference rate reform relief guidance provided by ASU 2020-04 and ASU 2021-01, which are discussed above. ASU 2022-06 was effective upon issuance and defers the sunset date of this prior guidance to December 31, 2024, after which entities will no longer be permitted to apply the relief guidance in Topic 848. ASU 2022-06 has not had, and is not expected to have, a material impact on the Company’s consolidated financial statements. In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures .” The amended guidance requires incremental reportable segment disclosures, primarily about significant segment expenses. The amendments also require entities with a single reportable segment to provide all disclosures required by these amendments, and all existing segment disclosures. The amendments will be applied retrospectively to all prior periods presented in the financial statements and is effective for fiscal years beginning after December 15, 2023, and interim periods in fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is evaluating the impact of the adoption of ASU 2023-07 on the footnotes to our consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, “ Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The amended guidance enhances income tax disclosures primarily related to the effective tax rate reconciliation and income taxes paid information. This guidance requires disclosure of specific categories in the effective tax rate reconciliation and further information on reconciling items meeting a quantitative threshold. In addition, the amended guidance requires disaggregating income taxes paid (net of refunds received) by federal, state, and foreign taxes. It also requires disaggregating individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than 5 percent of total income taxes paid (net of refunds received). The amended guidance is effective for fiscal years beginning after December 15, 2024. The guidance can be applied either prospectively or retrospectively. We do not expect the adoption of ASU 2023-09 to have a material impact on the footnotes to our consolidated financial statements.
Fair Value Measurements	Fair Value Measurements The Company determines the fair values of its financial instruments based on the requirements established in ASC 820 , Fair Value Measurements (“ASC 820”), which provides a framework for measuring fair value in accordance with U.S. GAAP and requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 defines fair values for financial instruments as the exit price, the price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. The Company’s fair values for financial instruments at September 30, 2024 and December 31, 2023 were determined based on these requirements. The following methods and assumptions were used to estimate the fair value of the Company’s financial instruments: Cash and cash equivalents - The estimated fair value is equal to the carrying amount. Available-for-sale securities – AFS securities are recorded at fair value based on quoted market prices, if available (Level 1). If quoted market prices are not available, management utilizes third-party pricing services or broker quotations from dealers in the specific instruments (Level 2). Level 2 securities include those traded on an active exchange, as well as U.S. government securities. Held-to-maturity securities – The fair value is based on quoted market prices, if available. If quoted market prices are not available, management utilizes third-party pricing services or broker quotations from dealers in the specific instruments. Level 2 securities include those traded on an active exchange, as well as U.S. government securities. Loans held-for-sale - The fair value of fixed-rate one-to-four family loans is based on whole loan forward prices obtained from government sponsored enterprises. Loans held-for-portfolio - The estimated fair value of loans held-for-portfolio consists of a credit adjustment, to reflect the estimated adjustment to the carrying value of the loans due to credit-related factors, and a yield adjustment, to reflect the estimated adjustment to the carrying value of the loans due to a differential in yield between the portfolio loan yields and estimated current market rate yields on loans with similar characteristics. The estimated fair values of loans held-for-portfolio reflect exit price assumptions. The liquidity premiums/discounts are part of the valuation for exit pricing. Mortgage servicing rights –The fair value of MSRs is determined through a discounted cash flow analysis, which uses interest rates, prepayment speeds, discount rates, and delinquency rate assumptions as inputs. Time deposits - The estimated fair value of time deposits is based on the difference between interest rates paid on the Company’s time deposits and current market rates for time deposits with comparable characteristics. Borrowings - The fair value of borrowings is estimated using the contractual cash flows of each debt instrument discounted using the Company’s current incremental borrowing rates for similar types of borrowing arrangements. Subordinated notes - The fair value of subordinated notes is estimated using discounted cash flows based on current borrowing rates for similar long-term debt instruments with similar terms and remaining time to maturity. A description of the valuation methodologies used for collateral dependent loans, OREO and repossessed assets and off-balance sheet loan commitments is as follows: Collateral dependent loans - The fair value of collateral dependent loans is based on the current appraised value of the collateral less estimated costs to sell. OREO and repossessed assets – The fair value of OREO and repossessed assets is based on the current appraised value of the collateral less estimated costs to sell. Off-balance sheet financial instruments - The fair value of off-balance sheet financial instruments, which consisted entirely of loan commitments at September 30, 2024 and December 31, 2023, is estimated based on fees charged to others to enter into similar agreements, taking into account the remaining terms of the agreements and credit standing of the Company’s clients. The estimated fair value of these commitments was not significant at September 30, 2024 and December 31, 2023. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the lowest level of inputs that is significant to the measurement is used to determine the hierarchy for the entire asset or liability. Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally coincides with the Company’s quarterly valuation process. There were no transfers between levels during the three and nine months ended September 30, 2024 and 2023.

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2024
Investments [Abstract]
Schedule of Amortized Cost and Fair Value of AFS Securities	The amortized cost and estimated fair value of our AFS securities and the corresponding amounts of gross unrealized gains and losses at the dates indicated were as follows (in thousands): Amortized Gross Gross Estimated September 30, 2024 Municipal bonds $ 6,364 $ 11 $ (890) $ 5,485 Agency mortgage-backed securities 2,836 14 (303) 2,547 Total $ 9,200 $ 25 $ (1,193) $ 8,032 December 31, 2023 Municipal bonds $ 6,394 $ 12 $ (878) $ 5,528 Agency mortgage-backed securities 3,145 7 (393) 2,759 Total $ 9,539 $ 19 $ (1,271) $ 8,287
Schedule of Amortized Cost and Fair Value of HTM Securities	The amortized cost and estimated fair value of our HTM securities and the corresponding amounts of gross unrealized gains and losses at the dates indicated were as follows (in thousands): Amortized Gross Gross Estimated September 30, 2024 Municipal bonds $ 704 $ — $ (178) $ 526 Agency mortgage-backed securities 1,435 — (182) 1,253 Total $ 2,139 $ — $ (360) $ 1,779 December 31, 2023 Municipal bonds $ 704 $ — $ (164) $ 540 Agency mortgage-backed securities 1,462 — (215) 1,247 Total $ 2,166 $ — $ (379) $ 1,787
Schedule of Amortized Cost and Fair Value of Mortgage-backed Securities by Contractual Maturity	The amortized cost and estimated fair value of AFS and HTM securities at September 30, 2024, by contractual maturity, are shown below (in thousands). Expected maturities of AFS securities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Investments not due at a single maturity date, consisting of agency mortgage-backed securities, are shown separately. September 30, 2024 Available-for-sale Held-to-maturity Amortized Estimated Fair Value Amortized Estimated Fair Value Due after one year through five years $ 455 $ 455 $ — $ — Due after five years through ten years 1,199 1,210 — — Due after ten years 4,710 3,820 704 526 Agency mortgage-backed securities 2,836 2,547 1,435 1,253 Total $ 9,200 $ 8,032 $ 2,139 $ 1,779
Schedule of Aggregate Fair Value and Gross Unrealized Loss by Length of Time	The following table summarizes the aggregate fair value and gross unrealized loss by length of time of those investments for which an allowance for credit losses has not been recorded that have been in a continuous unrealized loss position at the dates indicated (in thousands): September 30, 2024 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale securities Municipal bonds $ — $ — $ 3,820 $ (890) $ 3,820 $ (890) Agency mortgage-backed securities 46 — 2,128 (303) 2,174 (303) Total available-for-sale securities $ 46 $ — $ 5,948 $ (1,193) $ 5,994 $ (1,193) Held-to-maturity securities Municipal bonds $ — $ — $ 526 $ (178) $ 526 $ (178) Agency mortgage-backed securities — — 1,253 (182) 1,253 (182) Total held-to-maturity securities $ — $ — $ 1,779 $ (360) $ 1,779 $ (360) December 31, 2023 Less Than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale securities Municipal bonds $ — $ — $ 3,862 $ (878) $ 3,862 $ (878) Agency mortgage-backed securities 48 (1) 2,290 (392) 2,338 (393) Total $ 48 $ (1) $ 6,152 $ (1,270) $ 6,200 $ (1,271) Held-to-maturity securities Municipal bonds $ — $ — $ 540 $ (164) $ 540 $ (164) Agency mortgage-backed securities — — 1,247 (215) 1,247 (215) Total held-to-maturity securities $ — $ — $ 1,787 $ (379) $ 1,787 $ (379)

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Schedule of Composition of the Loan Portfolio, Excluding Loans Held-for-sale	Loans-held-for portfolio (which excludes loans held-for-sale) at the dates indicated were as follows (in thousands): September 30, December 31, Real estate loans: One-to-four family $ 271,702 $ 279,448 Home equity 25,199 23,073 Commercial and multifamily 358,587 315,280 Construction and land 85,724 126,758 Total real estate loans 741,212 744,559 Consumer loans: Manufactured homes 40,371 36,193 Floating homes 86,155 75,108 Other consumer 18,266 19,612 Total consumer loans 144,792 130,913 Commercial business loans 17,481 20,688 Total loans held-for-portfolio 903,485 896,160 Premiums for purchased loans (1) 736 829 Deferred fees, net (2,488) (2,511) Total loans held-for-portfolio, gross 901,733 894,478 Allowance for credit losses — loans (8,585) (8,760) Total loans held-for-portfolio, net $ 893,148 $ 885,718 (1) Includes premiums resulting from purchased loans of $410 thousand related to one-to-four family loans, $252 thousand related to commercial and multifamily loans, and $73 thousand related to commercial business loans as of September 30, 2024. Includes premiums resulting from purchased loans of $465 thousand related to one-to-four family loans, $280 thousand related to commercial and multifamily loans, and $84 thousand related to commercial business loans as of December 31, 2023.
Schedule of Activity in Allowance for Loan Losses	The following table presents a summary of activity in the ACL on loans and unfunded commitments for the periods indicated (in thousands): Three Months Ended September 30, 2024 2023 ACL - Loans Reserve for Unfunded Loan Commitments ACL ACL - Loans Reserve for Unfunded Loan Commitments ACL Balance at beginning of period $ 8,493 $ 245 $ 8,738 $ 8,217 $ 706 $ 8,923 Provision for (release of) credit losses during the period 106 (98) 8 224 (149) 75 Net charge-offs during the period (14) — (14) (3) — (3) Balance at end of period $ 8,585 $ 147 $ 8,732 $ 8,438 $ 557 $ 8,995 Nine months ended September 30, 2024 2024 2023 ACL - Loans Reserve for Unfunded Loan Commitments ACL ACL - Loans Reserve for Unfunded Loan Commitments ACL Balance at beginning of period $ 8,760 $ 193 $ 8,953 $ 7,599 $ 335 $ 7,934 Adoption of ASU 2016-13 (1) — — — 760 695 1,455 (Release of) provision for credit losses during the period (88) (46) (134) 227 (473) (246) Net charge-offs during the period (87) — (87) (148) — (148) Balance at end of period $ 8,585 $ 147 $ 8,732 $ 8,438 $ 557 $ 8,995 (1) Represents the impact of adopting ASU 2016-13, Financial Instruments — Credit Losses on January 1, 2023. Since that date, as a result of adopting ASU 2016-13, our methodology to compute our ACL has been based on a current expected credit loss methodology, rather than the previously applied incurred loss methodology. The following tables summarize the activity in the ACL - loans for the periods indicated (in thousands): Three Months Ended September 30, 2024 Beginning Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 2,798 $ — $ — $ 14 $ 2,812 Home equity 199 — — 15 214 Commercial and multifamily 1,130 — — 155 1,285 Construction and land 1,072 — — (302) 770 Manufactured homes 938 — — 53 991 Floating homes 1,910 — — 150 2,060 Other consumer (1) 348 (20) 6 23 357 Commercial business 98 — — (2) 96 Total $ 8,493 $ (20) $ 6 $ 106 $ 8,585 (1) During the three months ended September 30, 2024, the gross charge-offs related entirely to deposit overdrafts that were charged off. Three Months Ended September 30, 2023 Beginning Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 1,997 $ — $ — $ 8 $ 2,005 Home equity 194 — — 12 206 Commercial and multifamily 2,268 — — 77 2,345 Construction and land 2,498 — — 123 2,621 Manufactured homes 309 — — 21 330 Floating homes 586 — — 19 605 Other consumer (1) 160 (27) 24 (10) 147 Commercial business 205 — — (26) 179 Total $ 8,217 $ (27) $ 24 $ 224 $ 8,438 (1) During the three months ended September 30, 2023, the gross charge-offs related entirely to deposit overdrafts that were charged off. Nine Months Ended September 30, 2024 Beginning Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 2,630 $ — $ — $ 182 $ 2,812 Home equity 185 — — 29 214 Commercial and multifamily 1,070 — — 215 1,285 Construction and land 1,349 — — (579) 770 Manufactured homes (1) 971 (23) — 43 991 Floating homes 2,022 — — 38 2,060 Other consumer (2) 426 (80) 16 (5) 357 Commercial business 107 — — (11) 96 Total $ 8,760 $ (103) $ 16 $ (88) $ 8,585 (1) During the nine months ended September 30, 2024, there was one manufactured home loan that was charged off and then subsequently foreclosed upon. (2) During the nine months ended September 30, 2024, the gross charge-offs related entirely to deposit overdrafts that were charged off. Nine Months Ended September 30, 2023 Beginning Impact of Adoption of ASU 2016-13 Charge-offs Recoveries Provision for (Release of) Credit Losses Ending One-to-four family $ 1,771 $ 355 $ — $ — $ (121) $ 2,005 Home equity (1) 132 69 (25) — 30 206 Commercial and multifamily 2,501 (320) — — 164 2,345 Construction and land 1,209 1,359 — — 53 2,621 Manufactured homes 462 (180) — — 48 330 Floating homes 456 166 — — (17) 605 Other consumer (2) 324 (163) (159) 36 109 147 Commercial business 256 (35) — — (42) 179 Unallocated 488 (491) — — 3 — Total $ 7,599 $ 760 $ (184) $ 36 $ 227 $ 8,438 (1) During the nine months ended September 30, 2023, there was one revolving home equity loan that was charged off. (2)
Schedule of Internally Assigned Grades by Type of Loan	The following tables present the internally assigned grades as of September 30, 2024 and December 31, 2023, by type of loan and origination year (in thousands): At September 30, 2024 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis Converted to Term 2024 2023 2022 2021 2020 Prior Total One-to-four family: Pass $ 23,702 $ 22,546 $ 78,999 $ 99,405 $ 14,208 $ 32,278 $ — $ — $ 271,138 Substandard — — 259 107 — 319 — — 685 Total one-to-four family $ 23,702 $ 22,546 $ 79,258 $ 99,512 $ 14,208 $ 32,597 $ — $ — $ 271,823 Home equity: Pass $ 2,455 $ 3,131 $ 2,467 $ 1,007 $ 213 $ 1,357 $ 13,478 $ 908 $ 25,016 Substandard — — — — — 58 274 67 399 Total home equity $ 2,455 $ 3,131 $ 2,467 $ 1,007 $ 213 $ 1,415 $ 13,752 $ 975 $ 25,415 Commercial and multifamily: Pass $ 20,001 $ 20,846 $ 94,546 $ 104,015 $ 21,826 $ 84,003 $ — $ — $ 345,237 Special mention — — — — 1,299 1,379 — — 2,678 Substandard — — 2,857 — 2,178 4,461 — — 9,496 Total commercial and multifamily $ 20,001 $ 20,846 $ 97,403 $ 104,015 $ 25,303 $ 89,843 $ — $ — $ 357,411 Construction and land: Pass $ 18,267 $ 23,946 $ 2,439 $ 20,814 $ 599 $ 1,912 $ — $ — $ 67,977 Special mention — — 16,554 — — — — — 16,554 Substandard — — 70 — — 701 — — 771 Total construction and land $ 18,267 $ 23,946 $ 19,063 $ 20,814 $ 599 $ 2,613 $ — $ — $ 85,302 Manufactured homes: Pass $ 7,706 $ 12,486 $ 7,108 $ 3,921 $ 1,957 $ 6,531 $ — $ — $ 39,709 Substandard — 310 62 — — 149 — — 521 Total manufactured homes $ 7,706 $ 12,796 $ 7,170 $ 3,921 $ 1,957 $ 6,680 $ — $ — $ 40,230 Floating homes: Pass $ 19,743 $ 6,568 $ 16,305 $ 24,064 $ 6,098 $ 10,594 $ — $ — $ 83,372 Substandard — — 2,363 — — — — — 2,363 Total floating homes $ 19,743 $ 6,568 $ 18,668 $ 24,064 $ 6,098 $ 10,594 $ — $ — $ 85,735 Other consumer: Pass $ 2,317 $ 3,543 $ 656 $ 3,661 $ 5,433 $ 2,114 $ 527 $ — $ 18,251 Substandard 5 — 23 1 — — — — 29 Total other consumer $ 2,322 $ 3,543 $ 679 $ 3,662 $ 5,433 $ 2,114 $ 527 $ — $ 18,280 Commercial business: Pass $ 224 $ 716 $ 1,847 $ 3,178 $ 291 $ 4,047 $ 7,171 $ — $ 17,474 Substandard 40 — — — — 23 — — 63 Total commercial business $ 264 $ 716 $ 1,847 $ 3,178 $ 291 $ 4,070 $ 7,171 $ — $ 17,537 Total loans Pass $ 94,415 $ 93,782 $ 204,367 $ 260,065 $ 50,625 $ 142,836 $ 21,176 $ 908 $ 868,174 Special mention — — 16,554 — 1,299 1,379 — — 19,232 Substandard 45 310 5,634 108 2,178 5,711 274 67 14,327 Total loans $ 94,460 $ 94,092 $ 226,555 $ 260,173 $ 54,102 $ 149,926 $ 21,450 $ 975 $ 901,733 At December 31, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis Revolving Loans Amortized Cost Basis 2023 2022 2021 2020 2019 Prior Total One-to-four family: Pass $ 26,272 $ 84,467 $ 110,488 $ 16,126 $ 13,029 $ 28,139 $ — $ — $ 278,521 Substandard — 259 119 — 260 553 — — 1,191 Total one-to-four family $ 26,272 $ 84,726 $ 110,607 $ 16,126 $ 13,289 $ 28,692 $ — $ — $ 279,712 Home equity: Pass $ 3,963 $ 2,783 $ 1,072 $ 302 $ 95 $ 1,608 $ 12,982 $ 2 $ 22,807 Substandard — — — — — 63 445 — 508 Total home equity $ 3,963 $ 2,783 $ 1,072 $ 302 $ 95 $ 1,671 $ 13,427 $ 2 $ 23,315 Commercial and multifamily: Pass $ 21,144 $ 75,960 $ 93,932 $ 22,731 $ 29,822 $ 58,388 $ — $ — $ 301,977 Special mention — — — 3,365 — 350 — — 3,715 Substandard — 1,036 — 1,317 5,134 1,121 — — 8,608 Total commercial and multifamily $ 21,144 $ 76,996 $ 93,932 $ 27,413 $ 34,956 $ 59,859 $ — $ — $ 314,300 Construction and land: Pass $ 32,057 $ 53,302 $ 36,285 $ 967 $ 601 $ 2,031 $ — $ — $ 125,243 Substandard — — — — 689 44 — — 733 Total construction and land $ 32,057 $ 53,302 $ 36,285 $ 967 $ 1,290 $ 2,075 $ — $ — $ 125,976 Manufactured homes: Pass $ 13,696 $ 7,958 $ 4,365 $ 2,160 $ 2,075 $ 5,498 $ — $ — $ 35,752 Substandard 115 46 — 22 86 64 — — 333 Total manufactured homes $ 13,811 $ 8,004 $ 4,365 $ 2,182 $ 2,161 $ 5,562 $ — $ — $ 36,085 Floating homes: Pass $ 8,779 $ 21,555 $ 26,196 $ 6,471 $ 1,865 $ 9,867 $ — $ — $ 74,733 Total floating homes $ 8,779 $ 21,555 $ 26,196 $ 6,471 $ 1,865 $ 9,867 $ — $ — $ 74,733 Other consumer: Pass $ 4,629 $ 1,845 $ 3,884 $ 5,883 $ 598 $ 2,237 $ 539 $ — $ 19,615 Total other consumer $ 4,629 $ 1,845 $ 3,884 $ 5,883 $ 598 $ 2,237 $ 539 — $ 19,615 Commercial business: Pass $ 987 $ 437 $ 3,564 $ 400 $ 227 $ 5,848 $ 6,854 $ — $ 18,317 Substandard 2,128 53 204 — — — 40 — 2,425 Total commercial business $ 3,115 $ 490 $ 3,768 $ 400 $ 227 $ 5,848 $ 6,894 $ — $ 20,742 Total loans Pass $ 111,527 $ 248,307 $ 279,786 $ 55,040 $ 48,312 $ 113,616 $ 20,375 $ 2 $ 876,965 Special mention — — — 3,365 — 350 — — 3,715 Substandard 2,243 1,394 323 1,339 6,169 1,845 485 — 13,798 Total loans $ 113,770 $ 249,701 $ 280,109 $ 59,744 $ 54,481 $ 115,811 $ 20,860 $ 2 $ 894,478 The following tables summarize collateral dependent loans by collateral type as of the dates indicated (in thousands): September 30, 2024 Commercial Real Estate Residential Real Estate Land Other Residential RVs/Automobiles Business Assets Total Real estate loans: One- to four- family $ — $ 475 $ — $ 368 $ — $ — $ 843 Home equity — 338 — — — — 338 Commercial and multifamily 4,719 — — — — — 4,719 Construction and land — — 25 — — — 25 Total real estate loans 4,719 813 25 368 — — 5,925 Consumer loans: Manufactured homes — — — 230 — — 230 Floating homes — — — 2,377 — — 2,377 Other consumer — — — — 26 — 26 Total consumer loans — — — 2,607 26 — 2,633 Commercial business loans — — — — — 23 23 Total loans $ 4,719 $ 813 $ 25 $ 2,975 $ 26 $ 23 $ 8,581 December 31, 2023 Commercial Real Estate Residential Real Estate Land Other Residential RVs/Automobiles Business Assets Total Real estate loans: One- to four- family $ — $ 664 $ — $ 545 $ — $ — $ 1,209 Home equity — 84 — — — — 84 Total real estate loans — 748 — 545 — — 1,293 Consumer loans: Manufactured homes — — — 228 — — 228 Total consumer loans — — — 228 — — 228 Commercial business loans — — — 2,135 — — 2,135 Total loans $ — $ 748 $ — $ 2,908 $ — $ — $ 3,656
Schedule of Investment in Nonaccrual Loans	The following table presents the amortized cost of nonaccrual loans as of the dates indicated, by type of loan (in thousands): September 30, 2024 December 31, 2023 Total Total Total Total One-to-four family $ 745 $ 745 $ 1,108 $ 848 Home equity 338 338 84 84 Commercial and multifamily 4,719 4,719 — — Construction and land 25 25 — — Manufactured homes 230 208 228 228 Floating homes 2,377 2,377 — — Other consumer 32 26 1 — Commercial business 23 23 2,135 2,135 Total $ 8,489 $ 8,461 $ 3,556 $ 3,295
Schedule of Recorded Investment Aging In Past Due Loans	The following tables present the aging of past due loans, based on amortized cost, as of the dates indicated, by type of loan (in thousands): September 30, 2024 30-59 Days 60-89 Days 90 Days and Greater Past Due 90 Days and Greater Past Due and Accruing Total Past Current Total Loans One-to-four family $ — $ 168 $ 525 $ — $ 693 $ 271,130 $ 271,823 Home equity — — 341 — 341 25,074 25,415 Commercial and multifamily 151 — 4,713 — 4,864 352,547 357,411 Construction and land — — — — — 85,302 85,302 Manufactured homes — 445 86 — 531 39,699 40,230 Floating homes — — — — — 85,735 85,735 Other consumer 8 43 2 — 53 18,227 18,280 Commercial business — 23 — — 23 17,514 17,537 Total $ 159 $ 679 $ 5,667 $ — $ 6,504 $ 895,229 $ 901,733 December 31, 2023 30-59 Days 60-89 Days 90 Days and Greater Past Due 90 Days and Greater Past Due and Accruing Total Past Current Total Loans One-to-four family $ 168 $ 870 $ 663 $ — $ 1,701 $ 278,011 $ 279,712 Home equity 345 — 84 — 429 22,893 23,322 Commercial and multifamily 4,116 1,036 — — 5,151 309,149 314,300 Construction and land — — — — — 125,940 125,940 Manufactured homes 295 49 189 — 533 35,552 36,085 Floating homes — 3,226 — — 3,226 71,507 74,733 Other consumer 34 31 — — 65 19,550 19,615 Commercial business 66 — 2,128 — 2,194 18,551 20,745 Total $ 5,024 $ 5,211 $ 3,064 $ — $ 13,299 $ 881,153 $ 894,452

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value Hierarchy for Financial Instruments	The following tables present information about the level in the fair value hierarchy for the Company’s financial assets and liabilities, whether recognized or recorded at fair value or not as of the dates indicated (in thousands): September 30, 2024 Fair Value Measurements Using: Carrying Estimated Level 1 Level 2 Level 3 FINANCIAL ASSETS: Cash and cash equivalents $ 148,930 $ 148,930 $ 148,930 $ — $ — Available-for-sale securities 8,032 8,032 — 8,032 — Held-to-maturity securities 2,139 1,779 — 1,779 — Loans held-for-sale 65 65 — 65 — Loans held-for-portfolio, net 893,148 861,275 — — 861,275 Mortgage servicing rights 4,665 4,665 — — 4,665 FINANCIAL LIABILITIES: Time deposits 304,630 305,462 — 305,462 — Borrowings 40,000 40,000 — 40,000 — Subordinated notes 11,749 11,959 — 11,959 — December 31, 2023 Fair Value Measurements Using: Carrying Estimated Level 1 Level 2 Level 3 FINANCIAL ASSETS: Cash and cash equivalents $ 49,690 $ 49,690 $ 49,690 $ — $ — Available-for-sale securities 8,287 8,287 — 8,287 — Held-to-maturity securities 2,166 1,787 — 1,787 — Loans held-for-sale 603 603 — 603 — Loans held-for-portfolio, net 885,718 837,579 — — 837,579 Mortgage servicing rights 4,632 4,632 — — 4,632 FINANCIAL LIABILITIES: Time deposits 307,962 308,604 — 308,604 — Borrowings 40,000 40,000 — 40,000 — Subordinated notes 11,717 9,996 — 9,996 —
Schedule of Fair value of Assets Measured on Recurring Basis	The following tables present the balance of assets measured at fair value on a recurring basis as of the dates indicated (in thousands): Fair Value at September 30, 2024 Description Total Level 1 Level 2 Level 3 Municipal bonds $ 5,485 $ — $ 5,485 $ — Agency mortgage-backed securities 2,547 — 2,547 — Mortgage servicing rights 4,665 — — 4,665 Fair Value at December 31, 2023 Description Total Level 1 Level 2 Level 3 Municipal bonds $ 5,528 $ — $ 5,528 $ — Agency mortgage-backed securities 2,759 — 2,759 — Mortgage servicing rights 4,632 — — 4,632
Schedule of Valuation Technique, Unobservable Input, and Qualitative Information	The following tables provide a description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a recurring basis as of the dates indicated: September 30, 2024 Financial Instrument Valuation Technique Unobservable Input(s) Range Mortgage Servicing Rights Discounted cash flow Prepayment speed assumption 110%-192% (120%) Discount rate 10.7%-14.8% (12.7%) December 31, 2023 Financial Instrument Valuation Technique Unobservable Input(s) Range Mortgage Servicing Rights Discounted cash flow Prepayment speed assumption 109%-208% (129%) Discount rate 10.5%-14.5% (12.5%)
Schedule of Fair value of Assets Measured on Nonrecurring Basis	The following tables present the balance of assets measured at fair value on a nonrecurring basis at the dates indicated (in thousands): Fair Value at September 30, 2024 Total Level 1 Level 2 Level 3 OREO and repossessed assets $ 115 $ — $ — $ 115 Collateral dependent loans 8,581 — — 8,581 Fair Value at December 31, 2023 Total Level 1 Level 2 Level 3 OREO and repossessed assets $ 575 $ — $ — $ 575 Collateral dependent loans 3,656 — — 3,656

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	9 Months Ended
	Sep. 30, 2024
Transfers and Servicing [Abstract]
Schedule of Change in Balance of Mortgage Servicing Assets	A summary of the change in the balance of mortgage servicing assets during the periods indicated were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Beginning balance, at fair value $ 4,540 $ 4,726 $ 4,632 $ 4,687 Servicing rights that result from transfers and sale of financial assets 24 33 114 117 Changes in fair value: Due to changes in model inputs or assumptions and other (1) 101 (78) (81) (123) Ending balance, at fair value $ 4,665 $ 4,681 $ 4,665 $ 4,681 (1) Represents changes due to collection/realization of expected cash flows and curtailments.
Schedule of Mortgage Service Rights Assumptions	The key economic assumptions used in determining the fair value of mortgage servicing rights at the dates indicated are as follows: September 30, 2024 December 31, 2023 Prepayment speed (Public Securities Association “PSA” model) 120 % 129 % Weighted-average life 7.6 years 7.7 years Weighted average discount rate 12.7 % 12.5 %

Borrowings, FHLB Stock and Su_2

Borrowings, FHLB Stock and Subordinated Notes (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Schedule of Federal Home Loan Bank, Advances	The following tables present advances from the FHLB as of the dates indicated (dollars in thousands): September 30, 2024 December 31, 2023 FHLB advances: Short-term advances $ 15,000 $ 15,000 Long-term advances 25,000 25,000 Total $ 40,000 $ 40,000 September 30, 2024 December 31, 2023 Fixed Rate: Outstanding balance $ 40,000 $ 40,000 Interest rates ranging from 4.06 % 4.06 % Interest rates ranging to 4.35 % 4.35 % Weighted average interest rate 4.25 % 4.25 % Variable rate: Outstanding balance $ — $ — Weighted average interest rate — % — % The following table presents the maturity of our FHLB advances (dollars in thousands): September 30, Remainder of 2024 $ 15,000 2025 — 2026 15,000 2027 — 2028 10,000 Thereafter — $ 40,000 September 30, 2024 December 31, 2023 Amount available to borrow under credit facility (1) $ 483,759 $ 463,541 Advance equivalent of collateral: One-to-four family mortgage loans 184,256 196,547 Commercial and multifamily mortgage loans 31,565 34,464 Home equity loans 284 348 Notional amount of letters of credit outstanding 8,000 10,000 Remaining FHLB borrowing capacity (2) $ 168,105 $ 181,360 (1) Subject to eligible pledged collateral. (2) Amount remaining from the advance equivalent of collateral less letters of credit outstanding and FHLB advances.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule of Earnings Per Common Share	The following table summarizes the calculation of earnings per share for the periods indicated (in thousands, except per share data): Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net income $ 1,154 $ 1,169 $ 2,719 $ 6,228 LESS: Participating dividends - Unvested Restricted Stock Awards (“RSAs”) (3) (3) (10) (9) LESS: Income allocated to participating securities - Unvested RSAs (4) (4) (8) (31) Net income available to common stockholders - basic 1,146 1,162 2,701 6,188 ADD BACK: Income allocated to participating securities - Unvested RSAs 4 4 8 31 LESS: Income reallocated to participating securities - Unvested RSAs (4) (4) (8) (30) Net income available to common stockholders - diluted $ 1,146 $ 1,162 $ 2,701 $ 6,189 Weighted average number of shares outstanding, basic 2,544,233 2,553,773 2,541,331 2,568,899 Effect of potentially dilutive common shares 25,135 18,035 20,611 19,889 Weighted average number of shares outstanding, diluted 2,569,368 2,571,808 2,561,942 2,588,788 Earnings per share, basic $ 0.45 $ 0.45 $ 1.06 $ 2.41 Earnings per share, diluted $ 0.45 $ 0.45 $ 1.05 $ 2.39

Stock-based Compensation (Table

Stock-based Compensation (Tables)	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Stock Option Plan Award Activity	The following is a summary of the Company’s stock option award activity during the three months ended September 30, 2024 (dollars in thousands, except per share amounts): Shares Weighted- Weighted-Average Aggregate Outstanding at July 1, 2024 85,512 $ 33.00 5.29 $ 855 Granted — — Exercised (11,864) 18.36 Outstanding at September 30, 2024 73,648 35.36 5.80 1,336 Exercisable 54,167 33.70 4.92 1,073 Expected to vest, assuming a 0% forfeiture rate over the vesting term 73,648 $ 35.36 5.80 $ 1,336 The following is a summary of the Company’s stock option award activity during the nine months ended September 30, 2024 (dollars in thousands, except per share amounts): Shares Weighted- Weighted-Average Aggregate Outstanding at January 1, 2024 80,735 $ 32.28 5.36 $ 603 Granted 6,469 39.89 Exercised (13,299) 18.85 Expired (257) 36.57 Outstanding at September 30, 2024 73,648 35.36 5.80 1,336 Exercisable 54,167 33.70 4.92 1,073 Expected to vest, assuming a 0% forfeiture rate over the vesting term 73,648 $ 35.36 5.80 $ 1,336
Schedule of Weighted-Average Assumptions Used in Determining Fair Value of Options Granted	The fair values of options granted during the nine months ended September 30, 2024 and 2023 were determined using the following weighted-average assumptions as of the grant date. Nine Months Ended September 30, 2024 2023 Annual dividend yield 1.69 % 1.69 % Expected volatility 28.15 % 28.15 % Risk-free interest rate 4.06 % 3.60 % Expected term 6.00 years 6.00 years Weighted-average grant date fair value per option granted $ 11.64 $ 11.33
Schedule of Non-Vested Restricted Stock Award Activity	The following is a summary of the Company’s non-vested restricted stock award activity during the three months ended September 30, 2024: Shares Weighted-Average Aggregate Intrinsic Value Per Share Non-Vested at July 1, 2024 17,143 $ 39.93 Granted — — Vested — — Forfeited — — Non-Vested at September 30, 2024 17,143 $ 39.93 $ 52.51 Expected to vest assuming a 0% forfeiture rate over the vesting term 17,143 $ 39.93 $ 52.51 The following is a summary of the Company’s non-vested restricted stock award activity during the nine months ended September 30, 2024 Shares Weighted-Average Aggregate Intrinsic Value Per Share Non-Vested at January 1, 2024 15,967 $ 39.20 Granted 8,048 $ 39.89 Vested (6,872) $ 38.19 Non-Vested at September 30, 2024 17,143 $ 39.93 $ 52.51 Expected to vest assuming a 0% forfeiture rate over the vesting term 17,143 $ 39.93 $ 52.51

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Schedule of Balance Sheet Information Related to Leases	The following table presents the lease right-of-use assets and lease liabilities recorded on the Condensed Consolidated Balance Sheets at the dates indicated (in thousands): September 30, December 31, Operating lease right-of-use assets $ 3,779 $ 4,496 Operating lease liabilities $ 4,079 $ 4,821
Schedule of Components of the Leases and Supplemental Cash Flow Information	The following table presents the components of lease expense for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Operating lease expense Office leases $ 270 $ 270 $ 811 $ 808 Sublease income — (3) (4) (9) Net lease expense $ 270 $ 267 $ 807 $ 799 Lease term and discount rate by lease type consisted of the following at the dates indicated: September 30, December 31, Weighted-average remaining lease term: Office leases 4.5 years 5.2 years Weighted-average discount rate (annualized): Office leases 2.78 % 2.77 % Supplemental cash flow information related to leases was as follows for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Cash paid for amounts included in the measurement of lease liabilities for operating leases: Operating cash flows Office leases $ 278 $ 277 $ 836 $ 815
Schedule of Lease Liability Maturities	The following table presents the schedule of lease liabilities at the date indicated (in thousands): September 30, 2024 Remainder of 2024 $ 994 2025 934 2026 953 2027 917 2028 546 Thereafter — Total lease payments 4,344 Less: Present value discount 265 Present value of lease liabilities $ 4,079

Investments - Schedule of Amort

Investments - Schedule of Amortized Cost and Fair Value of AFS Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 9,200	$ 9,539
Gross Unrealized Gains	25	19
Gross Unrealized Losses	(1,193)	(1,271)
Estimated Fair Value	8,032	8,287
Municipal bonds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	6,364	6,394
Gross Unrealized Gains	11	12
Gross Unrealized Losses	(890)	(878)
Estimated Fair Value	5,485	5,528
Agency mortgage-backed securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	2,836	3,145
Gross Unrealized Gains	14	7
Gross Unrealized Losses	(303)	(393)
Estimated Fair Value	$ 2,547	$ 2,759

Investments - Schedule of Amo_2

Investments - Schedule of Amortized Cost and Fair Value of HTM Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 2,139	$ 2,166
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(360)	(379)
Estimated Fair Value	1,779	1,787
Municipal bonds
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	704	704
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(178)	(164)
Estimated Fair Value	526	540
Agency mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	1,435	1,462
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(182)	(215)
Estimated Fair Value	$ 1,253	$ 1,247

Investments - Schedule of Amo_3

Investments - Schedule of Amortized Cost and Fair Value of Mortgage-backed Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Amortized Cost
Due after one year through five years	$ 455
Due after five years through ten years	1,199
Due after ten years	4,710
Agency mortgage-backed securities	2,836
Amortized Cost	9,200	$ 9,539
Estimated Fair Value
Due after one year through five years	455
Due after five years through ten years	1,210
Due after ten years	3,820
Agency mortgage-backed securities	2,547
Estimated Fair Value	8,032	8,287
Amortized Cost
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	704
Agency mortgage-backed securities	1,435
Total	2,139	2,166
Estimated Fair Value
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	526
Agency mortgage-backed securities	1,253
Total	$ 1,779	$ 1,787

Investments - Narrative (Detail

Investments - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) security	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) security	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) security
Debt Securities, Available-for-Sale [Line Items]
Pledged securities	$ 0		$ 0		$ 0
Sale of AFS securities	0	$ 0	0	$ 0
Accrued interest receivable on securities	77,000		77,000		49,000
Debt securities, available-for-sale, allowance for credit loss	0		0		0
Investments	$ 9,800,000		$ 9,800,000		$ 10,100,000
Number of securities in unrealized loss position for less than 12 months | security	1		1		1
Number of securities in unrealized loss position for more than 12 months | security	16		16		16
Agency mortgage-backed securities
Debt Securities, Available-for-Sale [Line Items]
Number of portfolio securities | security	12		12		12
Municipal bonds
Debt Securities, Available-for-Sale [Line Items]
Number of portfolio securities | security	11		11		11

Investments - Schedule of Aggre

Investments - Schedule of Aggregate Fair Value and Gross Unrealized Loss by Length of Time (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value
Less Than 12 Months	$ 46	$ 48
12 Months or Longer	5,948	6,152
Total	5,994	6,200
Unrealized Loss
Less Than 12 Months	0	(1)
12 Months or Longer	(1,193)	(1,270)
Total	(1,193)	(1,271)
Fair Value
Less Than 12 Months	0	0
12 Months or Longer	1,779	1,787
Total	1,779	1,787
Unrealized Loss
Less Than 12 Months	0	0
12 Months or Longer	(360)	(379)
Total	(360)	(379)
Municipal bonds
Fair Value
Less Than 12 Months	0	0
12 Months or Longer	3,820	3,862
Total	3,820	3,862
Unrealized Loss
Less Than 12 Months	0	0
12 Months or Longer	(890)	(878)
Total	(890)	(878)
Fair Value
Less Than 12 Months	0	0
12 Months or Longer	526	540
Total	526	540
Unrealized Loss
Less Than 12 Months	0	0
12 Months or Longer	(178)	(164)
Total	(178)	(164)
Agency mortgage-backed securities
Fair Value
Less Than 12 Months	46	48
12 Months or Longer	2,128	2,290
Total	2,174	2,338
Unrealized Loss
Less Than 12 Months	0	(1)
12 Months or Longer	(303)	(392)
Total	(303)	(393)
Fair Value
Less Than 12 Months	0	0
12 Months or Longer	1,253	1,247
Total	1,253	1,247
Unrealized Loss
Less Than 12 Months	0	0
12 Months or Longer	(182)	(215)
Total	$ (182)	$ (215)

Loans - Schedule of Composition

Loans - Schedule of Composition of the Loan Portfolio, Excluding Loans Held-for-sale (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	$ 903,485		$ 896,160
Premiums for purchased loans	736		829
Deferred fees, net	(2,488)		(2,511)
Total	901,733		894,478
Allowance for credit losses — loans	(8,585)	$ (8,493)	(8,760)	$ (8,438)	$ (8,217)	$ (7,599)
Total loans held-for-portfolio, net	893,148		885,718
Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	741,212		744,559
Real estate loans: | One-to-four family:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	271,702		279,448
Premiums for purchased loans	410		465
Total	271,823		279,712
Allowance for credit losses — loans	(2,812)	(2,798)	(2,630)	(2,005)	(1,997)	(1,771)
Real estate loans: | Home equity:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	25,199		23,073
Total	25,415		23,315
Allowance for credit losses — loans	(214)	(199)	(185)	(206)	(194)	(132)
Real estate loans: | Commercial and multifamily:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	358,587		315,280
Premiums for purchased loans	252		280
Total	357,411		314,300
Allowance for credit losses — loans	(1,285)	(1,130)	(1,070)	(2,345)	(2,268)	(2,501)
Real estate loans: | Construction and land:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	85,724		126,758
Total	85,302		125,976
Allowance for credit losses — loans	(770)	(1,072)	(1,349)	(2,621)	(2,498)	(1,209)
Consumer loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	144,792		130,913
Consumer loans: | Manufactured homes:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	40,371		36,193
Total	40,230		36,085
Allowance for credit losses — loans	(991)	(938)	(971)	(330)	(309)	(462)
Consumer loans: | Floating homes:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	86,155		75,108
Total	85,735		74,733
Allowance for credit losses — loans	(2,060)	(1,910)	(2,022)	(605)	(586)	(456)
Consumer loans: | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	18,266		19,612
Total	18,280		19,615
Allowance for credit losses — loans	(357)	(348)	(426)	(147)	(160)	(324)
Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held-for-portfolio	17,481		20,688
Premiums for purchased loans	73		84
Total	17,537		20,742
Allowance for credit losses — loans	$ (96)	$ (98)	$ (107)	$ (179)	$ (205)	$ (256)

Loans - Narrative (Details)

Loans - Narrative (Details)	Sep. 30, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable on loans receivable	$ 3,400,000	$ 3,400,000
Commitments to extend additional credit to borrowers whose loan terms have been modified in TDRs	0
Loans classified as TDRs	$ 1,500,000	$ 1,700,000
Real estate loans: | One-to-four family:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans in process of foreclosure | loan	3
Mortgage loans in process of foreclosure, amount	$ 355,000

Loans - Schedule of Activity in

Loans - Schedule of Activity in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
ACL - Loans
Beginning Allowance	$ 8,493	$ 8,217	$ 8,760	$ 7,599
Provision for (release of) credit losses during the period	106	224	(88)	227
Net charge-offs during the period	(14)	(3)	(87)	(148)
Ending Allowance	8,585	8,438	8,585	8,438
Reserve for Unfunded Loan Commitments
Beginning balance	245	706	193	335
(Release of) provision for credit losses during the period	(98)	(149)	(46)	(473)
Net charge-offs during the period	0	0	0	0
Ending balance	147	557	147	557
Allowance for Credit Losses, beginning balance	8,738	8,923	8,953	7,934
Allowance for Credit Losses, (Release of) provision for credit losses during the period	8	75	(134)	(246)
Allowance for Credit Losses, Net charge-offs during the period	(14)	(3)	(87)	(148)
Allowance for Credit Losses, ending balance	$ 8,732	$ 8,995	8,732	8,995
Adoption of ASU 2016-13
ACL - Loans
Beginning Allowance			0	760
Reserve for Unfunded Loan Commitments
Beginning balance			0	695
Allowance for Credit Losses, beginning balance			$ 0	$ 1,455

Loans - Schedule of Activity _2

Loans - Schedule of Activity in Allowance for Loan Losses, Excluding Accrued Interest (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	$ 8,493	$ 8,217	$ 8,760	$ 7,599
Charge-offs	(20)	(27)	(103)	(184)
Recoveries	6	24	16	36
Provision for (Release of) Credit Losses	106	224	(88)	227
Ending Allowance	8,585	8,438	8,585	8,438
Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance			0	760
Real estate loans: | One-to-four family:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	2,798	1,997	2,630	1,771
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	14	8	182	(121)
Ending Allowance	2,812	2,005	2,812	2,005
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
Real estate loans: | Home equity:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	199	194	185	132
Charge-offs	0	0	0	(25)
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	15	12	29	30
Ending Allowance	214	206	214	206
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
Real estate loans: | Commercial and multifamily:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,130	2,268	1,070	2,501
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	155	77	215	164
Ending Allowance	1,285	2,345	1,285	2,345
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)
Real estate loans: | Construction and land:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,072	2,498	1,349	1,209
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	(302)	123	(579)	53
Ending Allowance	770	2,621	770	2,621
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
Consumer loans: | Manufactured homes:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	938	309	971	462
Charge-offs	0	0	(23)	0
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	53	21	43	48
Ending Allowance	991	330	991	330
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)
Consumer loans: | Floating homes:
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	1,910	586	2,022	456
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	150	19	38	(17)
Ending Allowance	2,060	605	2,060	605
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
Consumer loans: | Other consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	348	160	426	324
Charge-offs	(20)	(27)	(80)	(159)
Recoveries	6	24	16	36
Provision for (Release of) Credit Losses	23	(10)	(5)	109
Ending Allowance	357	147	357	147
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)
Commercial business loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance	98	205	107	256
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for (Release of) Credit Losses	(2)	(26)	(11)	(42)
Ending Allowance	$ 96	179	$ 96	179
Commercial business loans | Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance				(35)
Unallocated
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance				488
Charge-offs				0
Recoveries				0
Provision for (Release of) Credit Losses				3
Ending Allowance		$ 0		0
Unallocated | Impact of Adoption of ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Allowance				$ (491)

Loans - Term Loans Amortized Co

Loans - Term Loans Amortized Cost Basis by Origination Year (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	$ 94,460	$ 113,770
Prior year	94,092	249,701
Two years prior	226,555	280,109
Three years prior	260,173	59,744
Four years prior	54,102	54,481
Prior	149,926	115,811
Revolving Loans Amortized Cost Basis	21,450	20,860
Revolving Loans Amortized Cost Basis Converted to Term	975	2
Total	901,733	894,478
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	94,415	111,527
Prior year	93,782	248,307
Two years prior	204,367	279,786
Three years prior	260,065	55,040
Four years prior	50,625	48,312
Prior	142,836	113,616
Revolving Loans Amortized Cost Basis	21,176	20,375
Revolving Loans Amortized Cost Basis Converted to Term	908	2
Total	868,174	876,965
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Prior year	0	0
Two years prior	16,554	0
Three years prior	0	3,365
Four years prior	1,299	0
Prior	1,379	350
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	19,232	3,715
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	45	2,243
Prior year	310	1,394
Two years prior	5,634	323
Three years prior	108	1,339
Four years prior	2,178	6,169
Prior	5,711	1,845
Revolving Loans Amortized Cost Basis	274	485
Revolving Loans Amortized Cost Basis Converted to Term	67	0
Total	14,327	13,798
Real estate loans: | One-to-four family:
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	23,702	26,272
Prior year	22,546	84,726
Two years prior	79,258	110,607
Three years prior	99,512	16,126
Four years prior	14,208	13,289
Prior	32,597	28,692
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	271,823	279,712
Real estate loans: | One-to-four family: | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	23,702	26,272
Prior year	22,546	84,467
Two years prior	78,999	110,488
Three years prior	99,405	16,126
Four years prior	14,208	13,029
Prior	32,278	28,139
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	271,138	278,521
Real estate loans: | One-to-four family: | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Prior year	0	259
Two years prior	259	119
Three years prior	107	0
Four years prior	0	260
Prior	319	553
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	685	1,191
Real estate loans: | Home equity:
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	2,455	3,963
Prior year	3,131	2,783
Two years prior	2,467	1,072
Three years prior	1,007	302
Four years prior	213	95
Prior	1,415	1,671
Revolving Loans Amortized Cost Basis	13,752	13,427
Revolving Loans Amortized Cost Basis Converted to Term	975	2
Total	25,415	23,315
Real estate loans: | Home equity: | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	2,455	3,963
Prior year	3,131	2,783
Two years prior	2,467	1,072
Three years prior	1,007	302
Four years prior	213	95
Prior	1,357	1,608
Revolving Loans Amortized Cost Basis	13,478	12,982
Revolving Loans Amortized Cost Basis Converted to Term	908	2
Total	25,016	22,807
Real estate loans: | Home equity: | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	0
Four years prior	0	0
Prior	58	63
Revolving Loans Amortized Cost Basis	274	445
Revolving Loans Amortized Cost Basis Converted to Term	67	0
Total	399	508
Real estate loans: | Commercial and multifamily:
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	20,001	21,144
Prior year	20,846	76,996
Two years prior	97,403	93,932
Three years prior	104,015	27,413
Four years prior	25,303	34,956
Prior	89,843	59,859
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	357,411	314,300
Real estate loans: | Commercial and multifamily: | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	20,001	21,144
Prior year	20,846	75,960
Two years prior	94,546	93,932
Three years prior	104,015	22,731
Four years prior	21,826	29,822
Prior	84,003	58,388
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	345,237	301,977
Real estate loans: | Commercial and multifamily: | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Prior year	0	0
Two years prior	0	0
Three years prior	0	3,365
Four years prior	1,299	0
Prior	1,379	350
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	2,678	3,715
Real estate loans: | Commercial and multifamily: | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Prior year	0	1,036
Two years prior	2,857	0
Three years prior	0	1,317
Four years prior	2,178	5,134
Prior	4,461	1,121
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	9,496	8,608
Real estate loans: | Construction and land:
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	18,267	32,057
Prior year	23,946	53,302
Two years prior	19,063	36,285
Three years prior	20,814	967
Four years prior	599	1,290
Prior	2,613	2,075
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	85,302	125,976
Real estate loans: | Construction and land: | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	18,267	32,057
Prior year	23,946	53,302
Two years prior	2,439	36,285
Three years prior	20,814	967
Four years prior	599	601
Prior	1,912	2,031
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	67,977	125,243
Real estate loans: | Construction and land: | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0
Prior year	0
Two years prior	16,554
Three years prior	0
Four years prior	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Amortized Cost Basis Converted to Term	0
Total	16,554
Real estate loans: | Construction and land: | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	0
Prior year	0	0
Two years prior	70	0
Three years prior	0	0
Four years prior	0	689
Prior	701	44
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	771	733
Consumer loans: | Manufactured homes:
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	7,706	13,811
Prior year	12,796	8,004
Two years prior	7,170	4,365
Three years prior	3,921	2,182
Four years prior	1,957	2,161
Prior	6,680	5,562
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	40,230	36,085
Consumer loans: | Manufactured homes: | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	7,706	13,696
Prior year	12,486	7,958
Two years prior	7,108	4,365
Three years prior	3,921	2,160
Four years prior	1,957	2,075
Prior	6,531	5,498
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	39,709	35,752
Consumer loans: | Manufactured homes: | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0	115
Prior year	310	46
Two years prior	62	0
Three years prior	0	22
Four years prior	0	86
Prior	149	64
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	521	333
Consumer loans: | Floating homes:
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	19,743	8,779
Prior year	6,568	21,555
Two years prior	18,668	26,196
Three years prior	24,064	6,471
Four years prior	6,098	1,865
Prior	10,594	9,867
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	85,735	74,733
Consumer loans: | Floating homes: | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	19,743	8,779
Prior year	6,568	21,555
Two years prior	16,305	26,196
Three years prior	24,064	6,471
Four years prior	6,098	1,865
Prior	10,594	9,867
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	83,372	74,733
Consumer loans: | Floating homes: | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	0
Prior year	0
Two years prior	2,363
Three years prior	0
Four years prior	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Amortized Cost Basis Converted to Term	0
Total	2,363
Consumer loans: | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	2,322	4,629
Prior year	3,543	1,845
Two years prior	679	3,884
Three years prior	3,662	5,883
Four years prior	5,433	598
Prior	2,114	2,237
Revolving Loans Amortized Cost Basis	527	539
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	18,280	19,615
Consumer loans: | Other consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	2,317	4,629
Prior year	3,543	1,845
Two years prior	656	3,884
Three years prior	3,661	5,883
Four years prior	5,433	598
Prior	2,114	2,237
Revolving Loans Amortized Cost Basis	527	539
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	18,251	19,615
Consumer loans: | Other consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	5
Prior year	0
Two years prior	23
Three years prior	1
Four years prior	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Amortized Cost Basis Converted to Term	0
Total	29
Commercial business
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	264	3,115
Prior year	716	490
Two years prior	1,847	3,768
Three years prior	3,178	400
Four years prior	291	227
Prior	4,070	5,848
Revolving Loans Amortized Cost Basis	7,171	6,894
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	17,537	20,742
Commercial business | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	224	987
Prior year	716	437
Two years prior	1,847	3,564
Three years prior	3,178	400
Four years prior	291	227
Prior	4,047	5,848
Revolving Loans Amortized Cost Basis	7,171	6,854
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	17,474	18,317
Commercial business | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current year	40	2,128
Prior year	0	53
Two years prior	0	204
Three years prior	0	0
Four years prior	0	0
Prior	23	0
Revolving Loans Amortized Cost Basis	0	40
Revolving Loans Amortized Cost Basis Converted to Term	0	0
Total	$ 63	$ 2,425

Loans - Schedule of Investment

Loans - Schedule of Investment in Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	$ 8,489	$ 3,556
Total Nonaccrual Loans with no ACL	8,461	3,295
Real estate loans: | One-to-four family:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	745	1,108
Total Nonaccrual Loans with no ACL	745	848
Real estate loans: | Home equity:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	338	84
Total Nonaccrual Loans with no ACL	338	84
Real estate loans: | Commercial and multifamily:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	4,719	0
Total Nonaccrual Loans with no ACL	4,719	0
Real estate loans: | Construction and land:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	25	0
Total Nonaccrual Loans with no ACL	25	0
Consumer loans: | Manufactured homes:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	230	228
Total Nonaccrual Loans with no ACL	208	228
Consumer loans: | Floating homes:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	2,377	0
Total Nonaccrual Loans with no ACL	2,377	0
Consumer loans: | Other consumer:
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	32	1
Total Nonaccrual Loans with no ACL	26	0
Commercial business loans
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	23	2,135
Total Nonaccrual Loans with no ACL	$ 23	$ 2,135

Loans - Schedule of Recorded In

Loans - Schedule of Recorded Investment Aging In Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total Loans	$ 901,733	$ 894,452
90 Days and Greater Past Due and Accruing	0	0
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	159	5,024
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	679	5,211
90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	5,667	3,064
Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	6,504	13,299
Current
Financing Receivable, Past Due [Line Items]
Total Loans	895,229	881,153
Real estate loans: | One-to-four family:
Financing Receivable, Past Due [Line Items]
Total Loans	271,823	279,712
90 Days and Greater Past Due and Accruing	0	0
Real estate loans: | One-to-four family: | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	168
Real estate loans: | One-to-four family: | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	168	870
Real estate loans: | One-to-four family: | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	525	663
Real estate loans: | One-to-four family: | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	693	1,701
Real estate loans: | One-to-four family: | Current
Financing Receivable, Past Due [Line Items]
Total Loans	271,130	278,011
Real estate loans: | Home equity:
Financing Receivable, Past Due [Line Items]
Total Loans	25,415	23,322
90 Days and Greater Past Due and Accruing	0	0
Real estate loans: | Home equity: | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	345
Real estate loans: | Home equity: | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Real estate loans: | Home equity: | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	341	84
Real estate loans: | Home equity: | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	341	429
Real estate loans: | Home equity: | Current
Financing Receivable, Past Due [Line Items]
Total Loans	25,074	22,893
Real estate loans: | Commercial and multifamily:
Financing Receivable, Past Due [Line Items]
Total Loans	357,411	314,300
90 Days and Greater Past Due and Accruing	0	0
Real estate loans: | Commercial and multifamily: | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	151	4,116
Real estate loans: | Commercial and multifamily: | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	1,036
Real estate loans: | Commercial and multifamily: | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	4,713	0
Real estate loans: | Commercial and multifamily: | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	4,864	5,151
Real estate loans: | Commercial and multifamily: | Current
Financing Receivable, Past Due [Line Items]
Total Loans	352,547	309,149
Real estate loans: | Construction and land:
Financing Receivable, Past Due [Line Items]
Total Loans	85,302	125,940
90 Days and Greater Past Due and Accruing	0	0
Real estate loans: | Construction and land: | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Real estate loans: | Construction and land: | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Real estate loans: | Construction and land: | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Real estate loans: | Construction and land: | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Real estate loans: | Construction and land: | Current
Financing Receivable, Past Due [Line Items]
Total Loans	85,302	125,940
Consumer loans: | Manufactured homes:
Financing Receivable, Past Due [Line Items]
Total Loans	40,230	36,085
90 Days and Greater Past Due and Accruing	0	0
Consumer loans: | Manufactured homes: | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	295
Consumer loans: | Manufactured homes: | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	445	49
Consumer loans: | Manufactured homes: | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	86	189
Consumer loans: | Manufactured homes: | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	531	533
Consumer loans: | Manufactured homes: | Current
Financing Receivable, Past Due [Line Items]
Total Loans	39,699	35,552
Consumer loans: | Floating homes:
Financing Receivable, Past Due [Line Items]
Total Loans	85,735	74,733
90 Days and Greater Past Due and Accruing	0	0
Consumer loans: | Floating homes: | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Consumer loans: | Floating homes: | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	3,226
Consumer loans: | Floating homes: | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	0
Consumer loans: | Floating homes: | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	3,226
Consumer loans: | Floating homes: | Current
Financing Receivable, Past Due [Line Items]
Total Loans	85,735	71,507
Consumer loans: | Other consumer
Financing Receivable, Past Due [Line Items]
Total Loans	18,280	19,615
90 Days and Greater Past Due and Accruing	0	0
Consumer loans: | Other consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	8	34
Consumer loans: | Other consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	43	31
Consumer loans: | Other consumer | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	2	0
Consumer loans: | Other consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	53	65
Consumer loans: | Other consumer | Current
Financing Receivable, Past Due [Line Items]
Total Loans	18,227	19,550
Commercial business
Financing Receivable, Past Due [Line Items]
Total Loans	17,537	20,745
90 Days and Greater Past Due and Accruing	0	0
Commercial business | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	66
Commercial business | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	23	0
Commercial business | 90 Days and Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	0	2,128
Commercial business | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans	23	2,194
Commercial business | Current
Financing Receivable, Past Due [Line Items]
Total Loans	$ 17,514	$ 18,551

Loans - Schedule of Collateral

Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	$ 8,581	$ 3,656
Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	5,925	1,293
Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	843	1,209
Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	338	84
Real estate loans: | Commercial and multifamily:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	4,719
Real estate loans: | Construction and land:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	25
Consumer loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,633	228
Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	230	228
Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,377
Consumer loans: | Other consumer:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	26
Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	23	2,135
Commercial Real Estate
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	4,719	0
Commercial Real Estate | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	4,719	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	4,719
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	0
Residential Real Estate
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	813	748
Residential Real Estate | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	813	748
Residential Real Estate | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	475	664
Residential Real Estate | Real estate loans: | Home equity:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	338	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	0
Land
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	25	0
Land | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	25	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	25
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	0
Other Residential
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,975	2,908
Other Residential | Real estate loans:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	368	545
Other Residential | Real estate loans: | One-to-four family:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	368	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	2,607	228
Other Residential | Consumer loans: | Manufactured homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	230	228
Other Residential | Consumer loans: | Floating homes:
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	2,377
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	0	2,135
RVs And Automobiles
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	26	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	26	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	26
RVs And Automobiles | Commercial business loans
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	0	0
Business Assets
Financing Receivable, Allowance For Credit Losses [Line Items]
Total loans	23	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	$ 23	$ 0

Fair Value Measurements -Schedu

Fair Value Measurements -Schedule of Fair Value Hierarchy for Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
FINANCIAL ASSETS:
Available-for-sale securities	$ 8,032		$ 8,287
Held-to-maturity securities	1,779		1,787
Mortgage servicing rights	4,665	$ 4,540	4,632	$ 4,681	$ 4,726	$ 4,687
Level 1
FINANCIAL ASSETS:
Cash and cash equivalents	148,930		49,690
Available-for-sale securities	0		0
Held-to-maturity securities	0		0
Loans held-for-sale	0		0
Loans held-for-portfolio, net	0		0
Mortgage servicing rights	0		0
FINANCIAL LIABILITIES:
Time deposits	0		0
Borrowings	0		0
Subordinated notes	0		0
Level 2
FINANCIAL ASSETS:
Cash and cash equivalents	0		0
Available-for-sale securities	8,032		8,287
Held-to-maturity securities	1,779		1,787
Loans held-for-sale	65		603
Loans held-for-portfolio, net	0		0
Mortgage servicing rights	0		0
FINANCIAL LIABILITIES:
Time deposits	305,462		308,604
Borrowings	40,000		40,000
Subordinated notes	11,959		9,996
Level 3
FINANCIAL ASSETS:
Cash and cash equivalents	0		0
Available-for-sale securities	0		0
Held-to-maturity securities	0		0
Loans held-for-sale	0		0
Loans held-for-portfolio, net	861,275		837,579
Mortgage servicing rights	4,665		4,632
FINANCIAL LIABILITIES:
Time deposits	0		0
Borrowings	0		0
Subordinated notes	0		0
Carrying Value
FINANCIAL ASSETS:
Cash and cash equivalents	148,930		49,690
Available-for-sale securities	8,032		8,287
Held-to-maturity securities	2,139		2,166
Loans held-for-sale	65		603
Loans held-for-portfolio, net	893,148		885,718
Mortgage servicing rights	4,665		4,632
FINANCIAL LIABILITIES:
Time deposits	304,630		307,962
Borrowings	40,000		40,000
Subordinated notes	11,749		11,717
Estimated Fair Value
FINANCIAL ASSETS:
Cash and cash equivalents	148,930		49,690
Available-for-sale securities	8,032		8,287
Held-to-maturity securities	1,779		1,787
Loans held-for-sale	65		603
Loans held-for-portfolio, net	861,275		837,579
Mortgage servicing rights	4,665		4,632
FINANCIAL LIABILITIES:
Time deposits	305,462		308,604
Borrowings	40,000		40,000
Subordinated notes	$ 11,959		$ 9,996

Fair Value Measurements -Sche_2

Fair Value Measurements -Schedule of Fair value of Assets Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Recurring
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
Municipal bonds	$ 5,485	$ 5,528
Agency mortgage-backed securities	2,547	2,759
Mortgage servicing rights	4,665	4,632
Recurring | Level 1
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
Municipal bonds	0	0
Agency mortgage-backed securities	0	0
Mortgage servicing rights	0	0
Recurring | Level 2
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
Municipal bonds	5,485	5,528
Agency mortgage-backed securities	2,547	2,759
Mortgage servicing rights	0	0
Recurring | Level 3
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
Municipal bonds	0	0
Agency mortgage-backed securities	0	0
Mortgage servicing rights	4,665	4,632
Nonrecurring
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
OREO and repossessed assets	115	575
Collateral dependent loans	8,581	3,656
Nonrecurring | Level 1
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
OREO and repossessed assets	0	0
Collateral dependent loans	0	0
Nonrecurring | Level 2
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
OREO and repossessed assets	0	0
Collateral dependent loans	0	0
Nonrecurring | Level 3
Balance of Assets Measured at Fair Value on Recurring or Nonrecurring Basis [Abstract]
OREO and repossessed assets	115	575
Collateral dependent loans	$ 8,581	$ 3,656

Fair Value Measurements -Sche_3

Fair Value Measurements -Schedule of Valuation Technique, Unobservable Input, and Qualitative Information (Details) - Recurring - Level 3 - Mortgage Servicing Rights - Discounted cash flow	Sep. 30, 2024	Dec. 31, 2023
Minimum | Prepayment speed assumption
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Mortgage Servicing Rights	1.10	1.09
Minimum | Discount rate
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Mortgage Servicing Rights	0.107	0.105
Maximum | Prepayment speed assumption
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Mortgage Servicing Rights	1.92	2.08
Maximum | Discount rate
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Mortgage Servicing Rights	0.148	0.145
Weighted Average | Prepayment speed assumption
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Mortgage Servicing Rights	1.20	1.29
Weighted Average | Discount rate
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Mortgage Servicing Rights	0.127	0.125

Mortgage Servicing Rights - Nar

Mortgage Servicing Rights - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Servicing Assets at Fair Value [Line Items]
Mortgage servicing rights portfolio	$ 432,000		$ 432,000		$ 448,900
Contractually specified servicing, late and ancillary fees earned on the mortgage servicing rights	280	$ 295	841	$ 891
Federal National Mortgage Association
Servicing Assets at Fair Value [Line Items]
Loans serviced for others	429,900		429,900		446,800
Other financial institutions
Servicing Assets at Fair Value [Line Items]
Loans serviced for others	$ 2,100		$ 2,100		$ 2,200

Mortgage Servicing Rights - Sch

Mortgage Servicing Rights - Schedule of Change in Balance of Mortgage Servicing Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance, at fair value	$ 4,540	$ 4,726	$ 4,632	$ 4,687
Servicing rights that result from transfers and sale of financial assets	24	33	114	117
Changes in fair value:
Due to changes in model inputs or assumptions and other	101	(78)	(81)	(123)
Ending balance, at fair value	$ 4,665	$ 4,681	$ 4,665	$ 4,681

Mortgage Servicing Rights - S_2

Mortgage Servicing Rights - Schedule of Mortgage Service Rights Assumptions (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Transfers and Servicing [Abstract]
Prepayment speed (Public Securities Association “PSA” model)	120%	129%
Weighted-average life	7 years 7 months 6 days	7 years 8 months 12 days
Weighted average discount rate	12.70%	12.50%

Borrowings, FHLB Stock and Su_3

Borrowings, FHLB Stock and Subordinated Notes - Schedule of FHLB Advances (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Short-term advances	$ 0
Borrowings	40,000	$ 40,000
FHLB of Des Moines
Short-term Debt [Line Items]
Short-term advances	15,000	15,000
Long-term advances	25,000	25,000
Borrowings	40,000	40,000
FHLB of Des Moines | Fixed Rate:
Short-term Debt [Line Items]
Borrowings	$ 40,000	$ 40,000
Weighted average interest rate	4.25%	4.25%
FHLB of Des Moines | Fixed Rate: | Interest rates ranging from
Short-term Debt [Line Items]
Interest rates	4.06%	4.06%
FHLB of Des Moines | Fixed Rate: | Interest rates ranging to
Short-term Debt [Line Items]
Interest rates	4.35%	4.35%
FHLB of Des Moines | Variable rate:
Short-term Debt [Line Items]
Borrowings	$ 0	$ 0
Weighted average interest rate	0%	0%

Borrowings, FHLB Stock and Su_4

Borrowings, FHLB Stock and Subordinated Notes - Schedule of FHLB Advances Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Remainder of 2024	$ 15,000
2025	0
2026	15,000
2027	0
2028	10,000
Thereafter	0
Borrowings	$ 40,000	$ 40,000

Borrowings, FHLB Stock and Su_5

Borrowings, FHLB Stock and Subordinated Notes - Schedule of Borrowing Capacity from the FHLB (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Line of Credit Facility [Line Items]
Advance equivalent of collateral:	$ 903,485	$ 896,160
FHLB of Des Moines
Line of Credit Facility [Line Items]
Amount available to borrow under credit facility	483,759	463,541
Remaining FHLB borrowing capacity	168,105	181,360
FHLB of Des Moines | Notional amount of letters of credit outstanding
Line of Credit Facility [Line Items]
Notional amount of letters of credit outstanding	8,000	10,000
FHLB of Des Moines | One-to-four family: | Asset Pledged as Collateral
Line of Credit Facility [Line Items]
Advance equivalent of collateral:	184,256	196,547
FHLB of Des Moines | Commercial and multifamily mortgage loans | Asset Pledged as Collateral
Line of Credit Facility [Line Items]
Advance equivalent of collateral:	31,565	34,464
FHLB of Des Moines | Home equity: | Asset Pledged as Collateral
Line of Credit Facility [Line Items]
Advance equivalent of collateral:	$ 284	$ 348

Borrowings, FHLB Stock and Su_6

Borrowings, FHLB Stock and Subordinated Notes - Narrative (Details) - USD ($)	1 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Investment in FHLB stock		$ 2,405,000	$ 2,396,000
Subordinated notes, net		11,749,000	11,717,000
Subordinated Debt
Short-term Debt [Line Items]
Aggregate principal amount	$ 12,000,000
Subordinated notes, net		11,700,000	11,700,000
Subordinated Debt | Period before October 1, 2025
Short-term Debt [Line Items]
Interest rate	5.25%
Subordinated Debt | Period after October 1, 2025
Short-term Debt [Line Items]
Basis spread on variable rate	5.13%
Federal Reserve Bank of San Francisco
Short-term Debt [Line Items]
Outstanding borrowings		0	0
Pacific Coast Banker's Bank | Line of Credit
Short-term Debt [Line Items]
Amount available to borrow under loan agreement		$ 20,000,000
Term period		1 year
Outstanding borrowings		$ 0	0
Asset Pledged as Collateral | Federal Reserve Bank of San Francisco
Short-term Debt [Line Items]
Amount available to borrow under loan agreement		$ 21,900,000	$ 18,300,000

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 1,154	$ 1,169	$ 2,719	$ 6,228
LESS: Participating dividends - Unvested Restricted Stock Awards (“RSAs”)	(3)	(3)	(10)	(9)
LESS: Income allocated to participating securities - Unvested RSAs	(4)	(4)	(8)	(31)
Net income available to common stockholders - basic	1,146	1,162	2,701	6,188
ADD BACK: Income allocated to participating securities - Unvested RSAs	4	4	8	31
LESS: Income reallocated to participating securities - Unvested RSAs	(4)	(4)	(8)	(30)
Net income available to common stockholders - diluted	$ 1,146	$ 1,162	$ 2,701	$ 6,189
Weighted average number of shares outstanding, basic (in shares)	2,544,233	2,553,773	2,541,331	2,568,899
Effect of potentially dilutive common shares (in shares)	25,135	18,035	20,611	19,889
Weighted average number of shares outstanding, diluted (in shares)	2,569,368	2,571,808	2,561,942	2,588,788
Earnings per share, basic (in dollars per share)	$ 0.45	$ 0.45	$ 1.06	$ 2.41
Earnings per share, diluted (in dollars per share)	$ 0.45	$ 0.45	$ 1.05	$ 2.39
Anti-dilutive securities not included in computation of diluted earnings per common share (in shares)			0	7,892

Stock-based Compensation - Stoc

Stock-based Compensation - Stock Options and Restricted Stock (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) plan shares	Sep. 30, 2023 USD ($)
Stock-based Compensation [Line Items]
Share-based compensation expense | $	$ 98	$ 88	$ 291	$ 368
Stock Options
Stock-based Compensation [Line Items]
Cumulative number of shares issued (in shares)	301,453		301,453
Restricted Stock
Stock-based Compensation [Line Items]
Cumulative number of shares issued (in shares)	167,114		167,114
2013 Plan
Stock-based Compensation [Line Items]
Award annual vesting rights | plan			1
2013 Plan | Stock Options and Stock Appreciation Rights
Stock-based Compensation [Line Items]
Common stock approved (in shares)	181,750		181,750
2013 Plan | Restricted Stock and Restricted Stock Units
Stock-based Compensation [Line Items]
Common stock approved (in shares)	116,700		116,700

Stock-based Compensation - St_2

Stock-based Compensation - Stock Option Awards Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Stock-based Compensation [Line Items]
Intrinsic value of the shares exercised	$ 294	$ 20	$ 317	$ 408
Stock Options
Stock-based Compensation [Line Items]
Term of awards			10 years
Unrecognized compensation cost	$ 144		$ 144
Remaining weighted-average vesting period			2 years
Granted (in shares)	0	0	6,469
Stock Options | 2008 Plan
Stock-based Compensation [Line Items]
Annual vesting percentage			20%
Vesting commencement period from grant date			1 year
Stock Options | 2013 Plan | Minimum
Stock-based Compensation [Line Items]
Award vesting period			1 year
Stock Options | 2013 Plan | Maximum
Stock-based Compensation [Line Items]
Award vesting period			4 years

Stock-based Compensation - Sche

Stock-based Compensation - Schedule of Stock Option Plan Award Activity (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Shares
Outstanding, beginning of period (in shares)	85,512		80,735	80,735
Granted (in shares)	0	0		6,469
Exercised (in shares)	(11,864)			(13,299)
Expired (in shares)				(257)
Outstanding, end of period (in shares)	73,648		85,512	73,648		80,735
Exercisable, Shares (in shares)	54,167			54,167
Expected to vest, assuming a 0% forfeiture rate over the vesting term, Shares (in shares)	73,648			73,648
Weighted- Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 33		$ 32.28	$ 32.28
Granted (in dollars per share)	0			39.89
Exercised (in dollars per share)	18.36			18.85
Expired (in dollars per share)				36.57
Outstanding, end of period (in dollars per share)	35.36		$ 33	35.36		$ 32.28
Exercisable, Weighted-Average Exercise Price (in dollars per share)	33.70			33.70
Expected to Vest, assuming a 0% forfeiture rate over the vesting term, Weighted-Average Exercise Price (in dollars per share)	$ 35.36			$ 35.36
Additional Disclosures
Forfeiture rate	0%			0%
Outstanding, Weighted-Average Remaining Contractual Term	5 years 9 months 18 days		5 years 3 months 14 days	5 years 9 months 18 days		5 years 4 months 9 days
Exercisable, Weighted-Average Remaining Contractual Term	4 years 11 months 1 day			4 years 11 months 1 day
Expected to Vest, assuming a 0% forfeiture rate over the vesting term, Weighted-Average Remaining Contractual Term	5 years 9 months 18 days			5 years 9 months 18 days
Outstanding, Aggregate Intrinsic Value	$ 1,336		$ 855	$ 1,336		$ 603
Exercisable, Aggregate Intrinsic Value	1,073			1,073
Expected to Vest, assuming a 0% forfeiture rate over the vesting term, Aggregate Intrinsic Value	$ 1,336			$ 1,336
Share-based compensation arrangement, fair value assumptions and methodology [Abstract]
Annual dividend yield				1.69%	1.69%
Expected volatility				28.15%	28.15%
Risk-free interest rate				4.06%	3.60%
Expected term				6 years	6 years
Weighted-average grant date fair value per option granted (in dollars per share)				$ 11.64	$ 11.33

Stock-based Compensation - Rest

Stock-based Compensation - Restricted Stock Awards Narrative (Details) - Restricted Stock - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023
Stock-based Compensation [Line Items]
Unrecognized compensation cost	$ 482	$ 482
Remaining weighted-average vesting period		2 years
Total fair value of shares vested		$ 262	$ 370
Granted (in dollars per share)	$ 0	$ 39.89	$ 40.13
2008 Plan
Stock-based Compensation [Line Items]
Annual vesting percentage		20%
Vesting commencement period from grant date		1 year
2013 Plan | Minimum
Stock-based Compensation [Line Items]
Award vesting period		1 year
2013 Plan | Maximum
Stock-based Compensation [Line Items]
Award vesting period		4 years

Stock-based Compensation - Sc_2

Stock-based Compensation - Schedule of Nonvested Restricted Stock Awards (Details) - Restricted Stock - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023
Shares
Non-vested, beginning of period (in shares)	17,143	15,967
Granted (in shares)	0	8,048
Vested (in shares)	0	(6,872)
Forfeited (in shares)	0
Non-vested, end of period (in shares)	17,143	17,143
Expected to vest assuming a 0% forfeiture rate over the vesting term, Shares (in shares)	17,143	17,143
Weighted-Average Grant-Date Fair Value Per Share
Non-vested, beginning of period (in dollars per share)	$ 39.93	$ 39.20
Granted (in dollars per share)	0	39.89	$ 40.13
Vested (in dollars per share)	0	38.19
Forfeited (in dollars per share)	0
Non-vested, end of period (in dollars per share)	39.93	39.93
Expected to vest assuming a 0% forfeiture rate over the vesting term, Weighted-Average Grant-Date Fair Value Per Share (in dollars per share)	39.93	39.93
Aggregate Intrinsic Value Per Share
Non-vested, Aggregate Intrinsic Value Per Share (in dollars per share)	52.51	52.51
Expected to vest assuming a 0% forfeiture rate over the vesting term, Aggregate Intrinsic Value Per Share (in dollars per share)	$ 52.51	$ 52.51
Forfeiture rate	0%	0%

Stock-based Compensation - Empl

Stock-based Compensation - Employee Stock Ownership Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Number of common shares held by the trust (in shares)	169,778		169,778
Fair value of shares held by ESOP trust	$ 9,100		$ 9,100
ESOP compensation expense	$ 189	$ 204	$ 567	$ 612

Leases - Narrative (Details)

Leases - Narrative (Details)	9 Months Ended
	Sep. 30, 2024 renewalOption
Lessee, Lease, Description [Line Items]
Number of renewal options	1
Minimum
Lessee, Lease, Description [Line Items]
Initial lease term	3 years
Remaining lease term	5 months
Maximum
Lessee, Lease, Description [Line Items]
Initial lease term	10 years
Remaining lease term	4 years 9 months 18 days

Leases - Schedule of Balance Sh

Leases - Schedule of Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease right-of-use assets	$ 3,779	$ 4,496
Operating lease liabilities	$ 4,079	$ 4,821

Leases - Schedule of Components

Leases - Schedule of Components of the Leases and Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Sublease income	$ 0	$ (3)	$ (4)	$ (9)
Net lease expense	270	267	807	799
Office leases
Property, Plant and Equipment [Line Items]
Operating lease expense	$ 270	270	$ 811	808
Weighted-average remaining lease term:	4 years 6 months		4 years 6 months		5 years 2 months 12 days
Weighted-average discount rate (annualized):	2.78%		2.78%		2.77%
Operating cash flows	$ 278	$ 277	$ 836	$ 815

Leases - Schedule of Lease Liab

Leases - Schedule of Lease Liability Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Remainder of 2024	$ 994
2025	934
2026	953
2027	917
2028	546
Thereafter	0
Total lease payments	4,344
Less: Present value discount	265
Present value of lease liabilities	$ 4,079	$ 4,821

Subsequent Events (Details)

Subsequent Events (Details)	Oct. 30, 2024 $ / shares
Subsequent Event
Subsequent Event [Line Items]
Dividends declared (in dollars per share)	$ 0.19