ESSA Bancorp (ESSA) 10-Q 13 May 24 2024 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2024	May 09, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Trading Symbol	ESSA
Entity Registrant Name	ESSA Bancorp, Inc.
Entity Central Index Key	0001382230
Current Fiscal Year End Date	--09-30
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		10,131,521
Entity File Number	001-33384
Entity Tax Identification Number	20-8023072
Entity Address, Address Line One	200 Palmer Street
Entity Address, City or Town	Stroudsburg
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	18360
City Area Code	570
Local Phone Number	421-0531
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	PA
Document Quarterly Report	true
Document Transition Report	false

Consolidated Balance Sheet (Una

Consolidated Balance Sheet (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
ASSETS
Cash and due from banks	$ 68,735	$ 39,008
Interest-bearing deposits with other institutions	10,454	46,394
Total cash and cash equivalents	79,189	85,402
Investment securities available for sale, at fair value (net of allowance for credit losses of $0)	215,321	334,056
Investment securities held to maturity, at amortized cost net of allowance for credit losses of $0	49,923	52,242
Loans held for sale	749	250
Loans receivable (net of allowance for credit losses of $15,416 and $18,525)	1,708,221	1,680,525
Regulatory stock, at cost	21,493	17,890
Premises and equipment, net	11,479	12,913
Bank-owned life insurance	39,458	39,026
Foreclosed real estate	3,195	3,311
Intangible assets, net		91
Goodwill	13,801	13,801
Deferred income taxes	6,081	6,877
Derivative and hedging assets	13,414	19,662
Other assets	28,778	27,200
TOTAL ASSETS	2,191,102	2,293,246
LIABILITIES
Deposits	1,446,305	1,661,016
Short-term borrowings	467,917	374,652
Other borrowings	10,000
Advances by borrowers for taxes and insurance	12,780	6,550
Derivative and hedging liabilities	7,789	9,579
Other liabilities	22,771	21,741
TOTAL LIABILITIES	1,967,562	2,073,538
STOCKHOLDERS’ EQUITY
Preferred stock ($0.01 par value; 10,000,000 shares authorized, none issued)
Common stock ($0.01 par value; 40,000,000 shares authorized, 18,133,095 issued; 10,131,521 and 10,394,689 outstanding at March 31, 2024 and September 30, 2023, respectively)	181	181
Additional paid in capital	182,696	182,681
Unallocated common stock held by the Employee Stock Ownership Plan (ESOP)	(5,783)	(6,009)
Retained earnings	158,334	151,856
Treasury stock, at cost; 8,001,574 and 7,738,406 shares outstanding at March 31, 2024 and September 30, 2023, respectively	(104,050)	(99,508)
Accumulated other comprehensive loss	(7,838)	(9,493)
TOTAL STOCKHOLDERS’ EQUITY	223,540	219,708
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,191,102	$ 2,293,246

Consolidated Balance Sheet (U_2

Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 15,416	$ 18,525
Investment securities available for sale, amortized cost, net of allowance for credit losses	0	0
Investment securities held to maturity, amortized cost net of allowance for credit losses	$ 0	$ 0
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	18,133,095	18,133,095
Common stock, shares outstanding	10,131,521	10,394,689
Treasury stock, shares outstanding	8,001,574	7,738,406

Consolidated Statement of Opera

Consolidated Statement of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
INTEREST INCOME
Loans receivable, including fees	$ 21,724	$ 17,504	$ 43,138	$ 33,589
Investment securities:
Taxable	2,750	2,096	6,637	4,187
Exempt from federal income tax	10	10	21	21
Other investment income	1,166	444	1,944	876
Total interest income	25,650	20,054	51,740	38,673
INTEREST EXPENSE
Deposits	7,590	3,817	16,052	5,818
Short-term borrowings	3,064	1,127	5,720	2,085
Other borrowings	142		250
Total interest expense	10,796	4,944	22,022	7,903
NET INTEREST INCOME	14,854	15,110	29,718	30,770
(Release of) provision for credit losses	(496)	150	(893)	300
NET INTEREST INCOME AFTER (RELEASE OF) PROVISION FOR CREDIT LOSSES	15,350	14,960	30,611	30,470
NONINTEREST INCOME
Service fees on deposit accounts	674	762	1,370	1,561
Services charges and fees on loans	295	330	625	697
Loan swap fees	74	136	74	138
Unrealized loss on equity securities, net	(2)	(5)	(5)	(3)
Trust and investment fees	418	403	811	805
Gain on sale of loans, net	58	58	176	58
Earnings on bank-owned life insurance	220	195	432	386
Insurance commissions	134	168	262	314
Other	133	22	220	28
Total noninterest income	2,004	2,069	3,965	3,984
NONINTEREST EXPENSE
Compensation and employee benefits	6,673	6,792	13,419	13,532
Occupancy and equipment	1,228	1,109	2,457	2,155
Professional fees	1,039	1,115	2,064	2,358
Data processing	1,360	1,222	2,702	2,401
Advertising	239	168	375	354
Federal Deposit Insurance Corporation (FDIC) premiums	475	180	855	368
Foreclosed real estate			101	(3)
Amortization of intangible assets	44	48	91	95
Other	656	658	1,507	1,466
Total noninterest expense	11,714	11,292	23,571	22,726
Income before income taxes	5,640	5,737	11,005	11,728
Income taxes	1,078	1,052	2,106	2,177
NET INCOME	$ 4,562	$ 4,685	$ 8,899	$ 9,551
Earnings per share
Basic	$ 0.48	$ 0.48	$ 0.93	$ 0.98
Diluted	0.48	0.48	0.93	0.98
Dividends per share	$ 0.15	$ 0.15	$ 0.3	$ 0.3

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 4,562	$ 4,685	$ 8,899	$ 9,551
Investment securities available for sale:
Unrealized holding (gains) losses	(1,332)	1,616	6,553	2,677
Tax effect	280	(339)	(1,376)	(562)
Net of tax amount	(1,052)	1,277	5,177	2,115
Derivative and hedging activities adjustments:
Changes in unrealized holding gains (losses) on derivatives included in net income	3,005	(475)	260	193
Tax effect	(634)	101	(55)	(40)
Reclassification adjustment for gains (losses) on derivatives included in net income	(2,368)	(2,293)	(4,718)	(4,127)
Tax effect	497	483	991	869
Net of tax amount	500	(2,184)	(3,522)	(3,105)
Total other comprehensive (loss) income	(552)	(907)	1,655	(990)
Comprehensive income	$ 4,010	$ 3,778	$ 10,554	$ 8,561

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect of Adoption [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Unallocated Common Stock Held by the ESOP [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect of Adoption [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Sep. 30, 2022	$ 212,337		$ 181	$ 182,173	$ (6,462)	$ 139,139		$ (99,800)	$ (2,894)
Beginning Balance, Shares at Sep. 30, 2022			10,371,022
Net income	9,551					9,551
Other comprehensive income (loss)	(990)								(990)
Cash dividends declared	(2,928)					(2,928)
Stock based compensation	386			386
Allocation of ESOP stock	447			221	226
Allocation of treasury shares to incentive plan	(4)			(403)				399
Allocation of treasury shares to incentive plan, Shares			31,515
Ending Balance at Mar. 31, 2023	218,799		$ 181	182,377	(6,236)	145,762		(99,401)	(3,884)
Ending Balance, Shares at Mar. 31, 2023			10,402,537
Beginning Balance at Dec. 31, 2022	216,178		$ 181	182,182	(6,349)	142,542		(99,401)	(2,977)
Beginning Balance, Shares at Dec. 31, 2022			10,401,870
Net income	4,685					4,685
Other comprehensive income (loss)	(907)								(907)
Cash dividends declared	(1,465)					(1,465)
Stock based compensation	91			91
Allocation of ESOP stock	217			104	113
Allocation of treasury shares to incentive plan, Shares			667
Ending Balance at Mar. 31, 2023	218,799		$ 181	182,377	(6,236)	145,762		(99,401)	(3,884)
Ending Balance, Shares at Mar. 31, 2023			10,402,537
Beginning Balance at Sep. 30, 2023	$ 219,708		$ 181	182,681	(6,009)	151,856		(99,508)	(9,493)
Beginning Balance, Shares at Sep. 30, 2023	10,394,689		10,394,689
Net income	$ 8,899					8,899
Other comprehensive income (loss)	1,655								1,655
Cash dividends declared	(2,951)					(2,951)
Stock based compensation	385			385
Allocation of ESOP stock	377			151	226
Allocation of treasury shares to incentive plan				(521)				521
Allocation of treasury shares to incentive plan, Shares			40,441
Purchase of treasury stock	(5,063)							(5,063)
Purchase of treasury stock, Shares			(303,609)
Ending Balance at Mar. 31, 2024	$ 223,540		$ 181	182,696	(5,783)	158,334		(104,050)	(7,838)
Ending Balance (ASU 2016-13 [Member]) at Mar. 31, 2024		$ 530					$ 530
Ending Balance, Shares at Mar. 31, 2024	10,131,521		10,131,521
Beginning Balance at Dec. 31, 2023	$ 220,724		$ 181	182,528	(5,896)	155,247		(104,050)	(7,286)
Beginning Balance, Shares at Dec. 31, 2023			10,131,521
Net income	4,562					4,562
Other comprehensive income (loss)	(552)								(552)
Cash dividends declared	(1,475)					(1,475)
Stock based compensation	92			92
Allocation of ESOP stock	189			76	113
Ending Balance at Mar. 31, 2024	$ 223,540		$ 181	$ 182,696	$ (5,783)	$ 158,334		$ (104,050)	$ (7,838)
Ending Balance (ASU 2016-13 [Member]) at Mar. 31, 2024		$ 530					$ 530
Ending Balance, Shares at Mar. 31, 2024	10,131,521		10,131,521

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Cash dividends declared, per share	$ 0.15	$ 0.15	$ 0.3	$ 0.3
Retained Earnings [Member]
Cash dividends declared, per share	$ 0.15	$ 0.15	$ 0.3	$ 0.3

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
OPERATING ACTIVITIES
Net income	$ 8,899	$ 9,551
Adjustments to reconcile net income to net cash provided by operating activities:
(Release of) provision for credit losses	(893)	300
Provision for depreciation and amortization	562	555
(Amortization) and accretion of discounts and premiums, net	(2,021)	46
Unrealized loss on equity securities	5	3
Gain on sale of loans, net	(176)	(58)
Origination of residential real estate loans for sale	(8,991)	(3,386)
Proceeds on sale of residential real estate loans	8,668	3,444
Compensation expense on ESOP	377	447
Amortization of right-of-use asset	449	436
Stock based compensation	385	386
Increase in accrued interest receivable	(613)	(2,711)
Increase in accrued interest payable	869	919
Earnings on bank-owned life insurance	(432)	(386)
Deferred federal income taxes	356	306
Increase in accrued pension	(179)	(156)
Loss (gain) on foreclosed real estate, net	101	(3)
Amortization of intangible assets	91	95
Other, net	(501)	(826)
Net cash provided by operating activities	6,956	8,962
Investment securities available for sale:
Proceeds from principal repayments and maturities	161,093	9,742
Purchases	(34,016)	(2,000)
Investment securities held to maturity:
Proceeds from principal repayments and maturities	2,307	2,381
Increase in loans receivable, net	(25,888)	(137,154)
Redemption of regulatory stock	10,530	13,534
Purchase of regulatory stock	(14,133)	(16,224)
Proceeds from sale of foreclosed real estate	15	32
(Disposal) Purchase of premises, equipment and software, net	153	(658)
Net cash provided by (used for) investing activities	100,061	(130,347)
FINANCING ACTIVITIES
(Decrease) increase in deposits, net	(214,711)	49,276
Net increase in short-term borrowings	93,265	70,668
Proceeds from other borrowings	10,000
Purchase of common stock	(5,063)
Increase in advances by borrowers for taxes and insurance	6,230	973
Dividends on common stock	(2,951)	(2,928)
Net cash (used for) provided by financing activities	(113,230)	117,989
Decrease in cash and cash equivalents	(6,213)	(3,396)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	85,402	27,937
CASH AND CASH EQUIVALENTS AT END OF YEAR	79,189	24,541
Cash Paid:
Interest	21,154	6,984
Income taxes	2,310	2,150
Noncash items:
Transfers from loans to foreclosed real estate		3,546
Unrealized holding losses	$ 6,553	$ 2,677

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 4,562	$ 4,685	$ 8,899	$ 9,551

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false	false
Non-Rule 10b5-1 Arrangement Adopted	false	false
Rule 10b5-1 Arrangement Terminated	false	false
Non-Rule 10b5-1 Arrangement Terminated	false	false

Nature of Operations and Basis

Nature of Operations and Basis of Presentation	6 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Basis of Presentation	1. Nature of Operations and Basis of Presentation The consolidated financial statements include the accounts of ESSA Bancorp, Inc. (the “Company”), its wholly owned subsidiary, ESSA Bank & Trust (the “Bank”), and the Bank’s wholly owned subsidiaries, ESSACOR Inc.; Pocono Investments Company; ESSA Advisory Services, LLC; Integrated Financial Corporation; and Integrated Abstract Incorporated, a wholly owned subsidiary of Integrated Financial Corporation. The primary purpose of the Company is to act as a holding company for the Bank. The Bank’s primary business consists of the taking of deposits and granting of loans to customers generally in Monroe, Northampton, Lehigh, Delaware, Chester, Montgomery, Lackawanna, and Luzerne Counties, Pennsylvania. The Bank is a Pennsylvania chartered savings bank and is subject to regulation and supervision by the Pennsylvania Department of Banking and Securities and the Federal Deposit Insurance Corporation (the “FDIC”). The investment in the Bank on the parent company’s financial statements is carried at the parent company’s equity in the underlying net assets. ESSACOR, Inc. is a Pennsylvania corporation that has been used to purchase properties at tax sales that represent collateral for delinquent loans of the Bank. Pocono Investment Company is a Delaware corporation formed as an investment company subsidiary to hold and manage certain investments, including certain intellectual property. ESSA Advisory Services, LLC is a Pennsylvania limited liability company wholly owned by ESSA Bank & Trust. ESSA Advisory Services, LLC is a full-service insurance benefits consulting company offering group services such as health insurance, life insurance, short-term and long-term disability, dental, vision, and 401(k) retirement planning as well as individual health products. Integrated Financial Corporation is a Pennsylvania corporation that provided investment advisory services to the general public and is currently inactive. Integrated Abstract Incorporated is a Pennsylvania corporation that provided title insurance services and is currently inactive. All significant intercompany accounts and transactions have been eliminated in consolidation. The unaudited consolidated financial statements reflect all adjustments, which in the opinion of management, are necessary for a fair presentation of the results of the interim periods and are of a normal and recurring nature. Operating results for the three and six month periods ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending September 30, 2024.

Earnings per Share

Earnings per Share	6 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Earnings per Share	2. Earnings per Share The following table sets forth the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computation for the three and six months ended March 31, 2024 and 2023. Three Months Ended Six Months Ended March 31, March 31, March 31, March 31, 2024 2023 2024 2023 Weighted-average common shares outstanding 18,133,095 18,133,095 18,133,095 18,133,095 Average treasury stock shares ( 8,001,574 ) ( 7,730,573 ) ( 7,931,665 ) ( 7,732,689 ) Average unearned ESOP shares ( 592,281 ) ( 637,547 ) ( 597,970 ) ( 643,266 ) Average unearned non-vested shares ( 25,584 ) ( 47,031 ) ( 27,730 ) ( 49,803 ) Weighted average common shares and common stock 9,513,656 9,717,944 9,575,730 9,707,337 Additional common stock equivalents (nonvested stock) 142 2,674 — 3,358 Weighted average common shares and common stock 9,513,798 9,720,618 9,575,730 9,710,695 At March 31, 2024 and March 31, 2023 there were no shares of nonvested stock outstanding that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive.

Use of Estimates in the Prepara

Use of Estimates in the Preparation of Financial Statements	6 Months Ended
	Mar. 31, 2024
Text Block [Abstract]
Use of Estimates in the Preparation of Financial Statements	3. Use of Estimates in the Preparation of Financial Statements The accounting principles followed by the Company and its subsidiaries and the methods of applying these principles conform to U.S. generally accepted accounting principles (“GAAP”) and to general practice within the banking industry. In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the Consolidated Balance Sheet date and related revenues and expenses for the period. Actual results could differ from those estimates.

Accounting Pronouncements

Accounting Pronouncements	6 Months Ended
	Mar. 31, 2024
Accounting Changes and Error Corrections [Abstract]
Accounting Pronouncements	4. Accounting Pronouncements Accounting Pronouncements Recently Adopted In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" and subsequent related updates. This ASU replaces the incurred loss methodology for recognizing credit losses and requires the Company to measure the current expected credit losses (CECL) on financial assets measured at amortized cost, including loans, held to maturity investment securities, off-balance sheet credit exposures such as unfunded commitments, and other financial instruments. In addition, ASC 326 requires credit losses on available-for-sale debt securities to be presented as an allowance rather than as a write-down when management does not intend to sell or believes that it is not more likely than not they will be required to sell. This guidance became effective on October 1, 2023 for the Bank. The results reported for periods beginning after October 1, 2023 are presented under ASC 326 while prior period amounts continue to be reported in accordance with previously applicable accounting standards. The Company adopted this guidance, and subsequent related updates, using the modified retrospective approach for all financial assets measured at amortized cost, including loans, held to maturity debt securities and unfunded commitments. As a result the allowance for credit losses related to loans was decreased by $ 2,755,000 . No reserve was required for investment securities held to maturity. The Company also recorded a reserve for unfunded commitments of $ 2,083,000 . The corresponding increase to retained earnings as a result of these reserve changes was $ 672,000 , before taxes and $ 530,000 , net of tax. The Company adopted the provisions of ASC 326 related to presenting other-than-temporary impairment on available-for-sale debt securities prior to October 1, 2023 using the prospective transition approach, though no such charges had been recorded on the securities held by the Company as of the date of adoption. The impact of the change from the incurred loss model to the current expected credit loss model is detailed below (in thousands). October 1, 2023 Pre-adoption Adoption Impact As Reported Assets ACL on debt securities held-to-maturity $ - $ - $ - ACL on debt securities available for sale - - - ACL on debt securities loans Real estate loans: - - - Residential 4,897 503 5,400 Construction 183 254 437 Commercial 11,983 ( 3,729 ) 8,254 Commercial 941 ( 292 ) 649 Obligations of states and political subdivisions 110 129 239 Home equity loans and lines of credit 346 423 769 Auto loans 2 2 4 Other 22 ( 4 ) 18 Unallocated 41 ( 41 ) - Liabilites ACL for unfunded commitments 52 2,083 2,135 $ 18,577 $ ( 672 ) $ 17,905 In March 2022, the FASB issued ASU 2022-02, Financial Instruments - Credit Losses (ASC 326): Troubled Debt Restructurings (TDRs) and Vintage Disclosures . The guidance amends ASC 326 to eliminate the accounting guidance for TDRs by creditors, while enhancing disclosure requirements for certain loan refinancing and restructuring activities by creditors when a borrower is experiencing financial difficulty. Specifically, rather than applying TDR recognition and measurement guidance, creditors will determine whether a modification results in a new loan or continuation of existing loan. These amendments are intended to enhance existing disclosure requirements and introduce new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. Additionally, the amendments to ASC 326 require that an entity disclose current-period gross writeoffs by year of origination within the vintage disclosures, which requires that an entity disclose the amortized cost basis of financing receivables by credit quality indicator and class of financing receivable by year of origination. The guidance is only for entities that have adopted the amendments in Update 2016-13 for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. Early adoption using prospective application, including adoption in an interim period where the guidance should be applied as of the beginning of the fiscal year. The Company adopted this guidance on October 1, 2023. Recent Accounting Pronouncements In March 2023, the FASB issued ASU No. 2023-02, " Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method (a consensus of the Emerging Issues Task Force) ". The ASU allows entities to elect the proportional amortization method, on a tax-credit-program-by-tax-credit-program basis, for all equity investments in tax credit programs meeting the eligibility criteria in Accounting Standards Codification (ASC) 323-740-25-1. While the ASU does not significantly alter the existing eligibility criteria, it does provide clarifications to address existing interpretive issues. It also prescribes specific information reporting entities must disclose about tax credit investments each period. This ASU is effective for reporting periods beginning after December 15, 2023, for public business entities, or January 1, 2024 for the Company. The Company does not expect the adoption of this ASU to have a material impact on the Company's financial statements. In July 2023, the FASB issued ASU 2023-03, Presentation of Financial Statements (Topic 205), Income Statement-Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation-Stock Compensation (Topic 718) , which amends or supersedes various SEC paragraphs within the Codification to conform to past SEC announcements and guidance issued by the SEC. The ASU does not provide any new guidance so there is no transition or effective date associated with it. This ASU did not have a significant impact on the Company’s financial statements. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (TOPIC 280): Improvements to Reportable Segment Disclosures , which requires public entities to disclose information about their reportable segments’ significant expenses on an interim and annual basis. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. Public entities are required to adopt the changes retrospectively, recasting each prior-period disclosure for which a comparative income statement is presented in the period of adoption. This Update is not expected to have a significant impact on the Company’s financial statements. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures , which provides for improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. This ASU is effective for public business entities for annual period beginning after December 15, 2024. This Update is not expected to have a significant impact on the Company’s financial statements. In March 2024, the FASB issued ASU 2024-01, Compensation – Stock Compensation (Topic 718), amended the guidance in ASC 718 to add an example showing how to apply the scope guidance to determine whether profits interest and similar awards should be accounted for as share-based payment arrangements. For public business entities, the guidance is effective for fiscal years beginning after December 15, 2024, and interim periods within those fiscal years. For all other entities, it is effective for fiscal years beginning after December 15, 2025, and interim periods within those fiscal years. This Update is not expected to have a significant impact on the Company’s financial statements. In March 2024, the FASB issued ASU 2024-02, Codification Improvements—Amendments to Remove References to the Concepts Statements. This ASU removes various references to the FASB’s Concepts Statements from the FASB’s Accounting Standards Codification. The FASB does not expect these updates to have a significant effect on current accounting practice. That is because in most cases the amendments to the Codification remove references to Concept Statements that are extraneous and not required to understand or apply the guidance. However, the FASB has provided transition guidance if applying the updated guidance results in accounting changes for some entities. The amendments in ASU 2024-02 are effective for public business entities for fiscal years beginning after December 15, 2024. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2025. This Update is not expected to have a significant impact on the Company’s financial statements.

Investment Securities

Investment Securities	6 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	5. Investment Securities The amortized cost, gross unrealized gains and losses, allowance for credit losses and fair value of investment securities are summarized as follows (in thousands): March 31, 2024 Amortized Gross Gross Allowance for Fair Value Available for Sale Fannie Mae $ 59,238 $ 213 $ ( 4,287 ) $ - $ 55,164 Freddie Mac 54,016 30 ( 3,501 ) - 50,545 Governmental National Mortgage Association 17,194 38 ( 515 ) - 16,717 Total mortgage-backed securities 130,448 281 ( 8,303 ) - 122,426 Obligations of states and political subdivisions 9,573 - ( 499 ) - 9,074 U.S. government agency securities 6,578 - ( 68 ) - 6,510 Corporate obligations 75,950 33 ( 6,535 ) - 69,448 Other debt securities 8,406 25 ( 568 ) - 7,863 Total $ 230,955 $ 339 $ ( 15,973 ) $ - $ 215,321 Amortized Gross Gross Fair Value Allowance for Held to Maturity Fannie Mae $ 26,303 $ - $ ( 4,014 ) $ 22,289 $ - Freddie Mac 21,172 - ( 3,367 ) 17,805 - Total mortgage-backed securities 47,475 - ( 7,381 ) 40,094 - U.S. government agency securities 2,448 - ( 403 ) 2,045 - Total $ 49,923 $ - $ ( 7,784 ) $ 42,139 $ - September 30, 2023 Amortized Gross Gross Fair Value Available for sale Fannie Mae $ 55,878 $ - $ ( 6,418 ) $ 49,460 Freddie Mac 49,833 1 ( 5,552 ) 44,282 Governmental National Mortgage Association securities 6,986 - ( 397 ) 6,589 Total mortgage-backed securities 112,697 1 ( 12,367 ) 100,331 Obligations of states and political subdivisions 9,794 - ( 742 ) 9,052 U.S. government treasury securities 123,562 19 ( 1 ) 123,580 U.S. government agency securities 29,089 - ( 137 ) 28,952 Corporate obligations 73,962 - ( 8,241 ) 65,721 Other debt securities 7,139 - ( 719 ) 6,420 Total $ 356,243 $ 20 $ ( 22,207 ) $ 334,056 Held to maturity Fannie Mae $ 27,652 $ - $ ( 5,217 ) $ 22,435 Freddie Mac 22,145 - ( 4,424 ) 17,721 Total 49,797 - ( 9,641 ) 40,156 U.S. government agency securities 2,445 - ( 511 ) 1,934 Total $ 52,242 $ - $ ( 10,152 ) $ 42,090 The amortized cost and fair value of debt securities at March 31, 2024, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties (in thousands): Available For Sale Held to Maturity Amortized Fair Value Amortized Fair Value Due in one year or less $ 5,030 $ 4,987 $ — $ — Due after one year through five years 37,825 36,192 — — Due after five years through ten years 69,246 62,594 6,606 5,782 Due after ten years 118,854 111,548 43,317 36,357 Total $ 230,955 $ 215,321 $ 49,923 $ 42,139 For the three and six months ended March 31, 2024 and 2023, the Company realized no gross gains or gross losses on proceeds from the sale on investment securities. The following tables show the gross unrealized losses and fair value of the Company's investments for which an allowance for credit losses has not been recorded, which are aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2024 and September 30, 2023 (dollars in thousands): March 31, 2024 Number of Less than Twelve Twelve Months or Total Fair Gross Fair Gross Fair Gross Fannie Mae 77 $ 5,032 $ ( 24 ) $ 65,743 $ ( 8,277 ) $ 70,775 $ ( 8,301 ) Freddie Mac 66 7,090 ( 77 ) 58,233 ( 6,791 ) 65,323 ( 6,868 ) Governmental National Mortgage 18 8,370 ( 135 ) 4,152 ( 380 ) 12,522 ( 515 ) U.S. government agency securities 4 2,074 ( 4 ) 6,481 ( 467 ) 8,555 ( 471 ) Obligations of states and political 10 9,074 ( 499 ) 9,074 ( 499 ) Corporate obligations 83 2,621 ( 236 ) 61,484 ( 6,299 ) 64,105 ( 6,535 ) Other debt securities 17 375 - 5,539 ( 568 ) 5,914 ( 568 ) Total 275 $ 25,562 $ ( 476 ) $ 210,706 $ ( 23,281 ) $ 236,268 $ ( 23,757 ) September 30, 2023 Less than Twelve Twelve Months or Greater Total Number of Fair Gross Fair Gross Fair Gross Fannie Mae 77 $ 5,675 $ ( 196 ) $ 66,220 $ ( 11,439 ) $ 71,895 $ ( 11,635 ) Freddie Mac 63 3,828 ( 159 ) 57,168 ( 9,817 ) 60,996 ( 9,976 ) Governmental National Mortgage 14 2,151 ( 51 ) 4,438 ( 346 ) 6,589 ( 397 ) Obligations of states and political 11 - - 9,052 ( 742 ) 9,052 ( 742 ) U.S. government treasury securities 1 24,705 ( 1 ) - - 24,705 ( 1 ) U.S. government agency securities 4 24,582 ( 6 ) 6,304 ( 642 ) 30,886 ( 648 ) Corporate obligations 87 6,045 ( 273 ) 59,677 ( 7,968 ) 65,722 ( 8,241 ) Other debt securities 17 395 - 6,025 ( 719 ) 6,420 ( 719 ) Total 274 $ 67,381 $ ( 686 ) $ 208,884 $ ( 31,673 ) $ 276,265 $ ( 32,359 ) At March 31, 2024, the fair value of available-for-sale securities in an unrealized loss position for which an allowance for credit losses has not been recorded was $ 194.2 million, including unrealized losses of $ 16.0 million. The Corporation does not intend to sell the securities in an unrealized loss position and is unlikely to be required to sell these securities before a recovery of fair value, which may be maturity. The Corporation concluded that the decline in fair value of these securities was not indicative of a credit loss. Accrued interest receivable on available-for-sale debt securities totaled $ 1.2 million at March 31, 2024 and is included within other assets on the consolidated balance sheet. This amount is excluded from the estimate of expected credit losses. At March 31, 2024, the fair value of held-to-maturity securities in an unrealized loss position for which an allowance for credit losses has not been recorded was $ 42.1 million, including unrealized losses of $ 7.8 million. The Corporation did not recognize any credit losses on held-to-maturity debt securities for the year ended March 31, 2024 or other-than-temporary impairment charges during 2023. Accrued interest receivable on held-to-maturity debt securities totaled $ 67,000 at March 31, 2024 and is included within other assets on the consolidated balance sheet. This amount is excluded from the estimate of expected credit losses. Securities classified as held-to-maturity are included under the CECL methodology. Calculation of expected credit loss under CECL is done on a collective (“pooled”) basis, with assets grouped when similar risk characteristics exist. The Company notes that at March 31, 2024 all securities in the held-to-maturity classification are U.S. government agency and US government mortgage-backed securities; therefore, they share the same risk characteristics and can be evaluated on a collective basis. The expected credit loss on these securities is evaluated based on historical credit losses of this security type and the expected possibility of default in the future, and these securities are guaranteed by the U.S. government. U.S. government agency and mortgage-backed securities often receive the highest credit rating by rating agencies and the Company has concluded that the possibility of default is considered remote. The U.S. government agency and mortgage-backed securities held by the Company in the held-to-maturity category carry an AA+ rating from Standard & Poor’s, Aaa from Moody’s Investor Services, and AAA from Fitch. The Company concludes that the long history with no credit losses for these securities (adjusted for current conditions and reasonable and supportable forecasts) indicates an expectation that nonpayment of the amortized cost basis is zero. Management has concluded that there is no prepayment risk and it is expected to recover the recorded investment. The Company has the intent and ability to hold the securities to maturity.

Loans Receivable, Net and Allow

Loans Receivable, Net and Allowance for Credit Losses on Loans	6 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Loans Receivable, Net and Allowance for Credit Losses on Loans	6. Loans Receivable, Net and Allowance for Credit Losses on Loans Loans receivable consist of the following (in thousands): March 31, 2024 September 30, 2023 Real estate loans: Residential $ 710,272 $ 713,326 Construction 15,949 16,768 Commercial 856,096 821,958 Commercial 41,033 48,143 Obligations of states and political subdivisions 49,007 48,118 Home equity loans and lines of credit 49,594 48,212 Auto loans 145 523 Other 1,541 2,002 1,723,637 1,699,050 Less allowance for credit losses 15,416 18,525 Net loans $ 1,708,221 $ 1,680,525 The following table shows the amount of loans in each category that were individually and collectively evaluated for credit loss at the dates indicated (in thousands): Total Loans Individually Collectively March 31, 2024 Real estate loans: Residential $ 710,272 $ 1,318 $ 708,954 Construction 15,949 - 15,949 Commercial 856,096 6,397 849,699 Commercial 41,033 926 40,107 Obligations of states and political subdivisions 49,007 - 49,007 Home equity loans and lines of credit 49,594 23 49,571 Auto loans 145 7 138 Other 1,541 - 1,541 Total $ 1,723,637 $ 8,671 $ 1,714,966 The following table shows the amount of loans in each category that were individually and collectively evaluated for impairment at the dates indicated (in thousands): Total Loans Individually Collectively September 30, 2023 Real estate loans: Residential $ 713,326 $ 1,393 $ 711,933 Construction 16,768 - 16,768 Commercial 821,958 7,664 814,294 Commercial 48,143 648 47,495 Obligations of states and political subdivisions 48,118 - 48,118 Home equity loans and lines of credit 48,212 27 48,185 Auto loans 523 - 523 Other 2,002 3 1,999 Total $ 1,699,050 $ 9,735 $ 1,689,315 The Company maintains a loan review system that allows for a periodic review of our loan portfolio and the early identification of potential credit deterioration in loans. Such system takes into consideration, among other things, delinquency status, size of loans, type and market value of collateral and financial condition of the borrowers. Specific credit loss allowances are established for identified losses based on a review of such information. A loan is analyzed for credit loss when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. All loans are evaluated independently. The Company does not aggregate such loans for evaluation purposes. Credit loss is measured on a loan-by-loan basis for commercial and construction loans by the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral-dependent. The following table includes the recorded investment and unpaid principal balances for impaired loans with the associated allowance amount at the dates indicated, if applicable under ASC 310 (in thousands): Recorded Unpaid Associated September 30, 2023 With no specific allowance recorded: Real Estate Loans Residential $ 1,294 $ 2,091 $ - Construction - - - Commercial 6,240 7,094 - Commercial 648 960 - Obligations of states and political subdivisions - - - Home equity loans and lines of credit 27 62 - Auto Loans - - - Other 3 17 - Total 8,212 10,224 - With an allowance recorded: Real Estate Loans Residential 99 103 7 Construction - - - Commercial 1,424 1,562 35 Commercial - - - Obligations of states and political subdivisions - - - Home equity loans and lines of credit - - - Auto Loans - - - Other - - - Total 1,523 1,665 42 Total: Real Estate Loans Residential 1,393 2,194 7 Construction - - - Commercial 7,664 8,656 35 Commercial 648 960 - Obligations of states and political subdivisions - - - Home equity loans and lines of credit 27 62 - Auto Loans - - - Other 3 17 - Total Impaired Loans $ 9,735 $ 11,889 $ 42 The following tables represents the average recorded investments in the impaired loans and the related amount of interest recognized during the time within the periods that the impaired loans were impaired under ASC 310 (in thousands): For the Three Months Ended March 31, 2023 2023 Average Interest With no specific allowance recorded: Real estate loans Residential $ 1,156 $ 1 Construction - - Commercial 7,310 1 Commercial 369 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 33 - Auto loans 4 - Other 5 - Total 8,877 2 With an allowance recorded: Real estate loans Residential 102 - Construction - - Commercial 3,393 - Commercial 552 - Obligations of states and political subdivisions - - Home equity loans and lines of credit - - Auto loans - - Other - - Total 4,047 - Total: Real estate loans Residential 1,258 1 Construction - - Commercial 10,703 1 Commercial 921 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 33 - Auto loans 4 - Other 5 - Total Impaired Loans $ 12,924 $ 2 For the Six Months Ended March 31, 2023 2023 Average Interest With no specific allowance recorded: Real estate loans Residential $ 1,186 $ 2 Construction - - Commercial 8,937 1 Commercial 534 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 34 - Auto loans 5 - Other 5 - Total 10,701 3 With an allowance recorded: Real estate loans Residential 102 - Construction - - Commercial 2,481 - Commercial 392 - Obligations of states and political subdivisions - - Home equity loans and lines of credit - - Auto loans - - Other - - Total 2,975 - Total: Real estate loans Residential 1,288 2 Construction - - Commercial 11,418 1 Commercial 926 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 34 - Auto loans 5 - Other 5 - Total Impaired Loans $ 13,676 $ 3 The Company uses a dual risk rating methodology to monitor the credit quality of the overall commercial loan portfolio. This rating system consists of a borrower rating scale from 1 to 14 and a collateral coverage rating scale from A to J that provides a mechanism to separate borrower creditworthiness from the value of collateral recovery in the event of default. The two ratings are combined using a matrix to develop an overall composite loan quality risk rating. The criticized rating categories utilized by management generally follow bank regulatory definitions. The Special Mention category includes assets that are fundamentally sound yet, exhibit potentially unacceptable credit risk or deteriorating trends or characteristics which if left uncorrected, may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Loans in the Substandard category have well-defined weaknesses that jeopardize the liquidation of the debt and have a distinct possibility that some loss will be sustained if the weaknesses are not corrected. All loans greater than 90 days past due are considered Substandard. Loans in the Doubtful category have all the weaknesses inherent in one classified Substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Loans in the Loss category are considered uncollectible and of little value that their continuance as bankable assets is not warranted. To help ensure that risk ratings are accurate and reflect the present and future capacity of borrowers to repay a loan as agreed, the Company has a structured loan rating process with several layers of internal and external oversight. Generally, consumer and residential mortgage loans are included in the Pass categories unless a specific action, such as bankruptcy, repossession, or death, occurs to raise awareness of a possible credit event. The Company’s Commercial Loan Officers are responsible for the timely and accurate risk rating of the loans in their portfolios at origination and on an ongoing basis. The Company’s credit management team performs an annual review of all commercial relationships $ 2,000,000 or greater. Confirmation of the appropriate risk grade is included in the review on an ongoing basis. The Company engages an external consultant to conduct loan reviews on at least a semiannual basis. Generally, the external consultant reviews commercial relationships greater than $ 1,000,000 and/or all criticized relationships equal to or greater than $ 500,000 . Detailed reviews, including plans for resolution, are performed on loans classified as Substandard on a quarterly basis. Loans in the Substandard category that are analysed for credit loss are given separate consideration in the determination of the allowance. The Bank uses the following definitions for risk ratings: Pass. Loans classified as pass are loans in which the condition of the borrower and the performance of the loans are satisfactory of better Special Mention. Loans classified as special mention have a potential weakness that deserves management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution's credit position at some future date. Substandard. Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Doubtful . Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Based on the most recent analysis performed, the following table presents the recorded investment in non-homogenous pools by internal risk rating systems under ASC 326 (in thousands); Revolving Revolving Term Loans Amortized on Cost Basis by Origination Year Loans Loans Amortized Converted March 31, 2024 2024 2023 2022 2021 2020 Prior Cost Basis to Term Total Commercial real estate Risk Rating Pass $ 37,840 $ 84,923 $ 132,921 $ 128,636 $ 76,969 $ 189,218 $ 192,683 $- $ 843,190 Special Mention - - - - 2,283 64 - - 2,347 Substandard - - - 774 - 9,785 - - 10,559 Doubtful - - - - - - - - - Total $ 37,840 $ 84,923 $ 132,921 $ 129,410 $ 79,252 $ 199,067 $ 192,683 $- $ 856,096 Commercial real estate Current period gross charge-offs $- $- $- $ 15 $- $- $- $- $ 15 Commercial Risk Rating Pass $ 3,069 $ 12,108 $ 4,590 $ 2,254 $ 4,996 $ 10,103 $ 1,610 $- $ 38,730 Special Mention - - - - - - - - - Substandard - - - 512 292 1,499 - - 2,303 Doubtful - - - - - - - - - Total $ 3,069 $ 12,108 $ 4,590 $ 2,766 $ 5,288 $ 11,602 $ 1,610 $- $ 41,033 Commercial Current period gross charge-offs $- $- $- $ 23 $- $- $- $- $ 23 Obligations of states and political subdivisions Risk Rating Pass $ 2,359 $ 4,629 $ 8,880 $ 7,808 $ 16,931 $- $ 8,400 $- $ 49,007 Special Mention - - - - - - - - - Substandard - - - - - - - - - Doubtful - - - - - - - - - Total $ 2,359 $ 4,629 $ 8,880 $ 7,808 $ 16,931 $- $ 8,400 $- $ 49,007 Obligations of states and political subdivisions Current period gross charge-offs $- $- $- $- $- $- $- $- $- Total Pass $ 43,268 $ 101,660 $ 146,391 $ 138,698 $ 98,896 $ 199,321 $ 202,693 $- $ 930,927 Special Mention - - - - 2,283 64 - - 2,347 Substandard - - - 1,286 292 11,284 - - 12,862 Doubtful - - - - - - - - - Total $ 43,268 $ 101,660 $ 146,391 $ 139,984 $ 101,471 $ 210,669 $ 202,693 $- $ 946,136 The following table presents the classes of the loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard, and Doubtful or Loss within the internal risk rating system at September 30, 2023 under ASC 310 (in thousands): Pass Special Substandard Doubtful Total September 30, 2023 Commercial real estate loans $ 807,736 $ 3,200 $ 11,022 $ - $ 821,958 Commercial 46,452 - 1,691 - 48,143 Obligations of states and political subdivisions 48,118 - - - 48,118 Total $ 902,306 $ 3,200 $ 12,713 $ - $ 918,219 The Company monitors the credit risk profile by payment activity for residential and consumer loan classes. Loans past due over 90 days and loans on nonaccrual status are considered nonperforming. Nonperforming loans are reviewed monthly. The following table presents the carrying value of residential and consumer loans based on payment activity under ASC 326 (in thousands): Revolving Revolving Term Loans Amortized on Cost Basis by Origination Year Loans Loans Amortized Converted March 31, 2024 2024 2023 2022 2021 2020 Prior Cost Basis to Term Total Residential real estate Payment Performance Performing $ 13,673 $ 96,261 $ 151,974 $ 137,158 $ 105,190 $ 203,570 $ - $ - $ 707,826 Nonperforming - 202 - - - 2,244 - - 2,446 Total $ 13,673 $ 96,463 $ 151,974 $ 137,158 $ 105,190 $ 205,814 $ - $ - $ 710,272 Residential real estate Current period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - $ - Construction Payment Performance Performing $ 2,615 $ 11,126 $ 2,208 $ - $ - $ - $ - $ - $ 15,949 Nonperforming - - - - - - - - - Total $ 2,615 $ 11,126 $ 2,208 $ - $ - $ - $ - $ - $ 15,949 Construction Current period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - $ - Home equity loans and lines of credit - Payment Performance Performing $ 2,693 $ 11,378 $ 7,612 $ 1,984 $ 1,599 $ 3,213 $ 19,984 $ 1,087 $ 49,550 Nonperforming - - - - - 43 - - 43 Total $ 2,693 $ 11,378 $ 7,612 $ 1,984 $ 1,599 $ 3,256 $ 19,984 $ 1,087 $ 49,593 Home equity loans and lines of credit Current period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - $ - Auto - Payment Performance Performing $ - $ - $ - $ - $ 138 $ - $ - $ 138 Nonperforming - - - - - 7 - - 7 Total $ - $ - $ - $ - $ - $ 145 $ - $ - $ 145 Auto Current period gross charge-offs $ - $ - $ - $ - $ - $ 6 $ - $ - $ 6 Other - Payment Performance Performing $ 219 $ 483 $ 217 $ 126 $ 44 $ 25 $ 400 $ - $ 1,514 Nonperforming - - - - - 27 - - 27 Total $ 219 $ 483 $ 217 $ 126 $ 44 $ 52 $ 400 $ - $ 1,541 Other Current period gross charge-offs $ - $ - $ - $ - $ - $ 10 $ - $ - $ 10 Total Payment Performance Performing $ 19,200 $ 119,248 $ 162,011 $ 139,268 $ 106,833 $ 206,946 $ 20,384 $ 1,087 $ 774,977 Nonperforming - 202 - - - 2,321 - - 2,523 Total $ 19,200 $ 119,450 $ 162,011 $ 139,268 $ 106,833 $ 209,267 $ 20,384 $ 1,087 $ 777,500 . The following table presents the risk ratings in the consumer categories of performing and non-performing loans at and September 30, 2023 under ASC 310(in thousands): Performing Non- Total September 30, 2023 Real estate loans: Residential $ 710,757 $ 2,569 $ 713,326 Construction 16,768 - 16,768 Home equity loans and lines of credit 48,165 47 48,212 Auto loans 523 - 523 Other 1,972 30 2,002 Total $ 778,185 $ 2,646 $ 780,831 The Company further monitors the performance and credit quality of the loan portfolio by analyzing the age of the portfolio as determined by the length of time a recorded payment is past due. The following tables present the classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans as of March 31, 2024 and September 30, 2023 (in thousands): 31-60 Days 61-89 Days 90 + Days Total Total Current Past Due Past Due Past Due Past Due Loans March 31, 2024 Real estate loans: Residential $ 706,000 $ 2,120 $ 277 $ 1,875 $ 4,272 $ 710,272 Construction 15,949 - - - - 15,949 Commercial 854,098 161 159 1,678 1,998 856,096 Commercial 40,228 - 592 213 805 41,033 Obligations of states and political subdivisions 49,007 - - - - 49,007 Home equity loans and lines of credit 49,573 - - 21 21 49,594 Auto loans 136 2 7 - 9 145 Other 1,516 - 25 - 25 1,541 Total $ 1,716,507 $ 2,283 $ 1,060 $ 3,787 $ 7,130 $ 1,723,637 31-60 Days 61-89 Days 90 + Days Total Total Current Past Due Past Due Past Due Past Due Loans September 30, 2023 Real estate loans: Residential $ 710,290 $ 792 $ 199 $ 2,045 $ 3,036 $ 713,326 Construction 16,768 - - - - 16,768 Commercial 820,853 240 - 865 1,105 821,958 Commercial 47,893 - - 250 250 48,143 Obligations of states and political subdivisions 48,118 - - - - 48,118 Home equity loans and lines of credit 48,191 - - 21 21 48,212 Auto loans 485 37 1 - 38 523 Other 1,959 10 33 - 43 2,002 Total $ 1,694,557 $ 1,079 $ 233 $ 3,181 $ 4,493 $ 1,699,050 The following table presents the amortized cost basis of loans on nonaccrual status and loans past due over 90 days and still accruing interest as of March 31, 2024 (in thousands): Nonaccrual with no ACL Nonaccrual with ACL Total Nonaccrual Loans Past due over 90 days and still Accruing Total nonperforming March 31, 2024 Real estate loans: Residential $ 2,350 $ 96 $ 2,446 $ - $ 2,446 Construction - - - - - Commercial 7,307 - 7,307 - 7,307 Commercial 638 292 930 - 930 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 43 - 43 - 43 Auto loans 7 - 7 - 7 Other 27 - 27 - 27 Total $ 10,372 $ 388 $ 10,760 $ - $ 10,760 The following table presents nonaccrual loans as of September 30, 2023 under ASC 310 (in thousands): Non-Accrual Loans September 30, 2023 Real estate loans: Residential $ 2,569 Construction - Commercial 7,763 Commercial 652 Obligations of states and - Home equity loans and lines of 47 Auto loans - Other 30 Total $ 11,061 There are no loans greater than 90 days past due that are accruing interest. We maintain the ACL at a level that we believe to be appropriate to absorb estimated credit losses in the loan portfolios as of the balance sheet date. We established our allowance in accordance with guidance provided in Accounting Standard Codification ("ASC") - Financial Instruments - Credit Losses ("ASC 326"). In addition, the FDIC and the Pennsylvania Department of Banking and Securities, as an integral part of their examination process, periodically review our allowance for credit losses. The banking regulators may require that we recognize additions to the allowance based on its analysis and review of information available to it at the time of its examination. Management reviews the loan portfolio on a quarterly basis using a defined, consistently applied process in order to make appropriate and timely adjustments to the ACL. When information confirms all or part of specific loans to be uncollectible, these amounts are promptly charged off against the ACL. The following table summarizes changes in the primary segments of the allowance for credit losses during the three and six months ended March 31, 2024 and 2023 (in thousands): Home Obligations of Equity States and Loans and Real Estate Loans Commercial Political Lines of Auto Other Residential Construction Commercial Loans Subdivisions Credit Loans Loans Unallocated Total Beginning balance at December 31, 2023 $ 4,889 $ 431 $ 8,377 $ 690 $ 276 $ 746 $ 3 $ 18 $ - $ 15,430 Charge-offs - - ( 15 ) ( 22 ) - - ( 6 ) - - ( 43 ) Recoveries 1 - 37 - - 1 1 - - 40 Provision 63 ( 98 ) ( 368 ) 375 2 13 4 ( 2 ) - ( 11 ) Ending balance at March 31, 2024 $ 4,953 $ 333 $ 8,031 $ 1,043 $ 278 $ 760 $ 2 $ 16 $ - $ 15,416 ALL balance at December 31, 2022 $ 5,286 $ 328 $ 11,194 $ 1,048 $ 275 $ 372 $ 14 $ 22 $ 202 $ 18,741 Charge-offs - - ( 593 ) - - - ( 6 ) - - ( 599 ) Recoveries - - - - - 1 22 - - 23 Provision ( 416 ) - 415 137 ( 32 ) ( 37 ) ( 22 ) - 105 150 ALL balance at March 31, 2023 $ 4,870 $ 328 $ 11,016 $ 1,185 $ 243 $ 336 $ 8 $ 22 $ 307 $ 18,315 ALL balance at September 30, 2023 $ 4,897 $ 183 $ 11,983 $ 941 $ 110 $ 346 $ 2 $ 22 $ 41 $ 18,525 Impact or adopting ASC 326 503 254 ( 3,729 ) ( 292 ) 129 423 2 ( 4 ) ( 41 ) ( 2,755 ) Charge-offs - - ( 15 ) ( 22 ) - - ( 6 ) ( 10 ) - ( 53 ) Recoveries 1 - 37 - - 4 8 - - 50 Provision ( 448 ) ( 104 ) ( 245 ) 416 39 ( 13 ) ( 4 ) 8 - ( 351 ) ALL balance at March 31, 2024 $ 4,953 $ 333 $ 8,031 $ 1,043 $ 278 $ 760 $ 2 $ 16 $ - $ 15,416 ALL balance at September 30, 2022 $ 5,122 $ 319 $ 10,754 $ 698 $ 283 $ 361 $ 22 $ 22 $ 947 $ 18,528 Charge-offs — - ( 593 ) - - - ( 27 ) - - ( 620 ) Recoveries 2 - 1 - - 52 52 - - 107 Provision ( 254 ) 9 854 487 ( 40 ) ( 77 ) ( 39 ) - ( 640 ) 300 ALL balance at March 31, 2023 $ 4,870 $ 328 $ 11,016 $ 1,185 $ 243 $ 336 $ 8 $ 22 $ 307 $ 18,315 During the three months ended March 31, 2024, the Company recorded release of allowance for credit losses for residential real estate loans, construction real estate loans, obligations of states and political subdivisions, home equity loans and lines of credit and auto loans due to either decreased loan balances, improved asset quality, changes in the loan mix within the pool, and/or decreased charge-off activity in those segments. The Company recorded credit provision expense for the commercial real estate loans, commercial loans segments, and other loans due to increased loan balances, changes in the loan mix within the pool, and/or charge-off activity in those segments During the three months ended March 31, 2023, the Company recorded provision expense for the commercial real estate loans and commercial loans segments due to either increased loan balances, changes in the loan mix within the pool, and/or charge-off activity in those segments. Credit provisions were recorded for loan loss for the residential real estate loans, obligations of states and political subdivisions, home equity loans and lines of credit and auto loans due to either decreased loan balances, improved asset quality, changes in the loan mix within the pool, and/or decreased charge-off activity in those segments. During the six months ended March 31, 2024, the Company recorded provision expense for the obligations of states and political subdivisions, other loans and commercial loans segments due to either increased loan balances, changes in the loan mix within the pool, and/or charge-off activity in those segments. Credit provisions were recorded for loan loss for the residential real estate loans, construction real estate loans, commercial real estate loans, home equity loans and lines of credit and auto loans due to either decreased loan balances, improved asset quality, changes in the loan mix within the pool, and/or decreased charge-off activity in those segments. During the six months ended March 31, 2023, the Company recorded provision expense for the construction real estate loans, commercial real estate loans and commercial loans segments, due to either increased loan balances, changes in the loan mix within the pool, and/or charge-off activity in those segments. Credit provisions were recorded for loan loss for the residential real estate loans, obligations of states and political subdivisions, home equity loans and lines of credit and auto loans segments due to either decreased loan balances, changes in the loan mix within the pool, and/or decreased charge-off activity in those segments. The following table summarizes the amount of loans in each segments that were individually and collectively evaluated for credit loss as of March 31, 2024 (in thousands): Home Obligations of Equity States and Loans and Real Estate Loans Commercial Political Lines of Other Residential Construction Commercial Loans Subdivisions Credit Auto Loans Loans Unallocated Total Individually $ 5 $ - $ - $ 292 $ - $ - $ - $ - $ - $ 297 Collectively 4,948 333 8,031 751 278 760 2 16 - 15,119 Ending balance at March 31, 2024 $ 4,953 $ 333 $ 8,031 $ 1,043 $ 278 $ 760 $ 2 $ 16 $ - $ 15,416 The following table summarizes the primary segments of the ALL, segregated into two categories, the amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment as of September 30, 2023 (in thousands): Home Obligations of Equity States and Loans and Real Estate Loans Commercial Political Lines of Other Residential Construction Commercial Loans Subdivisions Credit Auto Loans Loans Unallocated Total Individually $ 7 $ - $ 35 $ - $ - $ - $ - $ - $ - $ 42 Collectively 4,890 183 11,948 941 110 346 2 22 41 18,483 ALL balance at September 30, 2023 $ 4,897 $ 183 $ 11,983 $ 941 $ 110 $ 346 $ 2 $ 22 $ 41 $ 18,525 Collateral-Dependent Loans The following table presents the collateral-dependent loans by portfolio segment at March 31, 2024 (in thousands): Real Estate Business Assets Other March 31, 2024 Real estate loans: Residential $ 1,318 Construction - Commercial 6,397 Commercial - 926 Obligations of states and political subdivisions - Home equity loans and lines of credit 23 Auto loans - 7 Other - - Total $ 7,738 $ 926 $ 7 Occasionally, the Company modifies loans to borrowers in financial distress by providing term extensions and interest rate reductions. In some cases, the Company provides multiple types of concessions on one loan. Typically, one type of concession, such as a term extension, is granted initially. If the borrower continues to experience financial difficulty, another concession, The following table shows the amortized cost basis at the end of the reporting period of the loans modified to borrowers Loan Modifications Made to Borrowers Experiencing Financial Difficulty Combination - Term Extension and Interest Rate Reduction Amortized Cost Basis % of Total Class of at March 31, 2024 Financing Receivable Real estate loans: Residential $ 71 0.01 % Total S 71 The following table describes the financial effect of the modifications made to borrowers experiencing financial difficulty under ASC 326 during the six months ended March 31, 2024: Combination - Term Extension and Interest Rate Reduction Loan Type Financial Effect Real estate loans: Residential Reduced weighted-average contractual interest rate form 7.25 % to 5 %. Extended term for 360 months. Only one loan was modified. The Bank closely monitors the performance of the loans that are modified to borrowers experiencing financial difficulty to understand the effectiveness of its modification efforts. The following table depicts the performance of loans that have been modified in the last 6 months under ASC 326 (in thousands): 31-60 Days 61-89 Days 90 + Days Total Current Past Due Past Due Past Due Past Due March 31, 2024 Real estate loans: Residential $ 71 $ - $ - $ - $ 71 Construction - - - - - Commercial - - - - - Commercial - - - - - Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit - - - - - Auto loans - - - - - Other - - - - - Total $ 71 $ - $ - $ - $ 71 On October 1, 2023, the Bank adopted ASU 2022-02 on a modified retrospective basis. ASU 2022-02 eliminates the TDR accounting model, and requires that the Bank evaluate, based on the accounting for loan modifications, whether the borrower is experiencing financial difficulty and the modification results in a more-than-insignificant direct change in the contractual cash flows and represents a new loan or a continuation of an existing loan. This change required all loan modifications to be accounted for under the general loan modification guidance in ASC 310-20, Receivables – Nonrefundable Fees and Other Costs, and subject entities to new disclosure requirements on loan modifications to borrowers experiencing financial difficulty. Upon adoption of CECL, the TDRs were evaluated and included in the CECL loan segment pools if the loans shared similar risk characteristics to other loans in the pool or remained with individually evaluated loans for which the ACL was measured using the collateral-dependent or discounted cash flow method. The following table presents the most comparable required information for the prior period for impaired loans that were TDRs, with the recorded investment at March 31, 2023: There were no troubled debt restructurings granted during the three months ended March 31, 2023 under ASC 310 The following is a summary of troubled debt restructuring granted during the six months ended March 31, 2023 under ASC 310(dollars in thousands): For the Six Months Ended March 31, 2024 Number of Pre-Modification Post-Modification Troubled Debt Restructurings Real estate loans: Residential 1 $ 51 $ 54 Construction — — — Commercial — — — Commercial — — — Obligations of states and political subdivisions — — — Home equity loans and lines of credit — — — Auto loans — — — Other — — — Total 1 $ 51 $ 54 For the three and six months ended March 31, 2023, no loans defaulted on a modification agreement within one year of modification.

Deposits

Deposits	6 Months Ended
	Mar. 31, 2024
Deposits Liabilities Disclosures [Abstract]
Deposits	7. Deposits Deposits consist of the following major classifications (in thousands): March 31, 2024 September 30, 2023 Non-interest bearing demand accounts $ 266,367 $ 280,473 Interest bearing demand accounts 276,534 346,458 Money market accounts 302,534 366,866 Savings and club accounts 156,822 163,248 Certificates of deposit 444,048 503,971 Total $ 1,446,305 $ 1,661,016

Net Periodic Benefit Cost-Defin

Net Periodic Benefit Cost-Defined Benefit Plan	6 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Net Periodic Benefit Cost-Defined Benefit Plan	8. Net Periodic Benefit Cost-Defined Benefit Plan For a detailed disclosure on the Bank’s pension and employee benefits plans, please refer to Note 12 of the Company’s Consolidated Financial Statements for the year ended September 30, 2023 included in the Company’s Annual Report on Form 10-K. The following table comprises the components of net periodic benefit cost (income) for the three and six months ended March 31, 2024 and 2023 (in thousands): For the Three Months Ended March 31, For the Six Months Ended March 31, 2024 2023 2024 2023 Service Cost $ - $ - $ - $ - Interest Cost 173 164 344 328 Expected return on plan assets ( 262 ) ( 242 ) ( 523 ) ( 484 ) Partial settlement - - — - Amortization of net loss from earlier periods - - — — Net periodic benefit income $ ( 89 ) $ ( 78 ) $ ( 179 ) $ ( 156 ) The Company’s board of directors adopted resolutions to freeze the status of the Defined Benefit Plan (“the plan”) effective February 28, 2017 (“the freeze date”). Accordingly, no additional participants have been allowed to enter the plan since February 28, 2017; no additional years of service for benefit accrual purposes have been credited since the freeze date under the plan; and compensation earned by participants after the freeze date is not taken into account under the plan.

Equity Incentive Plan

Equity Incentive Plan	6 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Equity Incentive Plan	9. Equity Incentive Plan The Company previously maintained the ESSA Bancorp, Inc. 2007 Equity Incentive Plan (the “Plan”). The Plan provided for a total of 2,377,326 shares of common stock for issuance upon the grant or exercise of awards. Of the shares that were available under the Plan, 1,698,090 were available to be issued in connection with the exercise of stock options and 679,236 were available to be issued as restricted stock. The Plan allowed for the granting of non-qualified stock options (“NSOs”), incentive stock options (“ISOs”), and restricted stock. Options granted under the plan were granted at no less than the fair value of the Company’s common stock on the date of the grant. As of the effective date of the 2016 Equity Incentive Plan (detailed below), no further grants will be made under the Plan and forfeitures of outstanding awards under the Plan will be added to the shares available under the 2016 Equity Incentive Plan. The Company replaced the 2007 Equity Incentive Plan with the ESSA Bancorp, Inc. 2016 Equity Incentive Plan (the “2016 Plan”) which was approved by shareholders on March 3, 2016. The 2016 Plan provides for a total of 250,000 shares of common stock for issuance upon the grant or exercise of awards. The 2016 Plan allows for the granting of restricted stock, restricted stock units, ISOs and NSOs. The Company replaced the 2016 Equity Incentive Plan with the ESSA Bancorp, Inc. 2024 Equity Incentive Plan (the “2024 Plan”) which was approved by shareholders on March 7, 2024. The 2024 Plan provides for a total of 200,000 shares of common stock for issuance upon the grant or exercise of awards. The 2024 Plan allows for the granting of restricted stock, restricted stock units, ISO’s and NSO’s. The Company classifies share-based compensation for employees and outside directors within “Compensation and employee benefits” in the Consolidated Statement of Operations to correspond with the same line item as compensation paid. Restricted stock shares outstanding at March 31, 2024 vest over periods ranging from 6 to 42 months . The product of the number of shares granted and the grant date market price of the Company’s common stock determines the fair value of restricted shares under the Company’s restricted stock plan. The Company expenses the fair value of all share based compensation grants over the requisite service period. For the three months ended March 31, 2024 and 2023, the Company recorded $ 92,000 and $ 91,000 of share-based compensation expense, respectively, comprised of restricted stock expense. For the six months ended March 31, 2024 and 2023, the Company recorded $ 385,000 and $ 386,000 of share-based compensation expense, respectively, comprised of restricted stock expense. Expected future compensation expense relating to the restricted shares outstanding at March 31, 2024 is $ 739,000 over the remaining vesting period of 3.50 years. The following is a summary of the status of the Company’s restricted stock as of March 31, 2024, and changes therein during the six month period then ended: Number of Stock Weighted- Nonvested at September 30, 2023 32,512 $ 17.03 Granted 40,586 14.85 Vested ( 14,268 ) 14.57 Forfeited — — Nonvested at March 31, 2024 58,830 $ 16.12

Fair Value

Fair Value	6 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value	10. Fair Value The following disclosures show the hierarchal disclosure framework associated within the level of pricing observations utilized in measuring assets and liabilities at fair value. The definition of fair value maintains the exchange price notion in earlier definitions of fair value but focuses on the exit price of the asset or liability. The exit price is the price that would be received to sell the asset or paid transfer the liability adjusted for certain inherent risks and restrictions. Expanded disclosures are also required about the use of fair value to measure assets and liabilities. Assets and Liabilities Required to be Measured and Reported at Fair Value on a Recurring Basis The following tables provide the fair value for assets and liabilities required to be measured and reported at fair value on a recurring basis on the Consolidated Balance Sheet as of March 31, 2024 and September 30, 2023 by level within the fair value hierarchy (in thousands). Recurring Fair Value Measurements at Reporting Date March 31, 2024 Assets Level I Level II Level III Total Investment securities available for sale: Mortgage backed securities $ - $ 122,426 $ - $ 122,426 Obligations of states and political subdivisions - 9,074 - 9,074 U.S. government agency securities - 6,510 - 6,510 Corporate obligations - 66,389 3,059 69,448 Other debt securities - 7,863 - 7,863 Total debt securities $ - $ 212,262 $ 3,059 $ 215,321 Equity securities- financial services 27 - - 27 Derivatives and hedging activities - 13,414 - 13,414 Liabilities Derivatives and hedging activities $ - $ 7,789 $ - $ 7,789 September 30, 2023 Assets Level I Level II Level III Total Investment securities available for sale: Mortgage backed securities $ - $ 100,331 $ - $ 100,331 Obligations of states and political subdivisions - 9,052 - 9,052 U.S. government treasury securities 123,580 - 123,580 U.S. government agency securities - 28,952 - 28,952 Corporate obligations - 62,885 2,836 65,721 Other debt securities - 6,420 - 6,420 Total debt securities $ - $ 331,220 $ 2,836 $ 334,056 Equity securities-financial services 32 - - 32 Derivatives and hedging activities - 19,662 - 19,662 Liabilities: Derivatives and hedging activities $ - $ 9,579 $ - $ 9,579 The following table presents a summary of changes in the fair value of the Company’s Level III investments for the three months ended March 31, 2024 and 2023 (in thousands). Fair Value Measurement Using Three Months Ended March 31, 2024 March 31, 2023 Beginning balance $ 2,975 $ 7,199 Purchases, sales, issuances, settlements, net - - Total unrealized (loss) gain: Included in earnings - - Included in other comprehensive (loss) income 84 ( 253 ) Transfers in and/or out of Level III - ( 3,517 ) $ 3,059 $ 3,429 Each financial asset and liability is identified as having been valued according to a specified level of input, 1, 2 or 3. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset, either directly or indirectly. Level 2 inputs include quoted prices for similar assets in active markets, and inputs other than quoted prices that are observable for the asset or liability. Level 3 inputs are unobservable inputs for the asset, and include situations where there is little, if any, market activity for the asset or liability. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy, within which the fair value measurement in its entirety falls, has been determined based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset. The measurement of fair value should be consistent with one of the following valuation techniques: market approach, income approach, and/or cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities (including a business). For example, valuation techniques consistent with the market approach often use market multiples derived from a set of comparable. Multiples might lie in ranges with a different multiple for each comparable. The selection of where within the range the appropriate multiple falls requires judgment, considering factors specific to the measurement (qualitative and quantitative). Valuation techniques consistent with the market approach include matrix pricing. Matrix pricing is a mathematical technique used principally to value debt securities without relying exclusively on quoted prices for the specific securities, but rather by relying on a security’s relationship to other benchmark quoted securities. Most of the securities classified as available for sale are reported at fair value utilizing Level 2 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quoted market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Securities reported at fair value utilizing Level 1 inputs are limited to actively traded equity securities whose market price is readily available from the New York Stock Exchange or the NASDAQ exchange. A few securities are valued using Level 3 inputs, all of these are classified as available for sale and are reported at fair value using Level 3 inputs. Assets and Liabilities Required to be Measured and Reported on a Non-Recurring Basis The following tables provide the fair value for assets required to be measured and reported at fair value on a non-recurring basis on the Consolidated Balance Sheet as of March 31, 2024 and September 30, 2023 by level within the fair value hierarchy: Non-Recurring Fair Value Measurements at Reporting Date (in thousands) March 31, 2024 Level I Level II Level III Total Foreclosed real estate $ - $ - $ 3,195 $ 3,195 Individually evaluated loans held for investment - - 8,374 8,374 September 30, 2023 Level I Level II Level III Total Foreclosed real estate $ - $ - $ 3,311 $ 3,311 Impaired loans - - 9,693 9,693 The following tables present additional quantitative information about assets measured at fair value on a nonrecurring basis and for which the Company has utilized Level 3 inputs to determine fair value: Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Unobservable Range (Average) March 31, 2024 Individually evaluated loans held for investment $ 8,374 Appraisal of (1) Appraisal (2) 0 % to 35 % 20.8 %) Foreclosed real estate owned 3,195 Appraisal of (1) Appraisal (2) 10 % 10.0 %) Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Unobservable Range (Average) September 30, 2023 Impaired loans $ 9,693 Appraisal of (1) Appraisal (2) 0 % to 35 % 20.8 %) Foreclosed real estate owned 3,311 Appraisal of (1) Appraisal (2) 10 to 35 % 10.2 %) (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal. Foreclosed real estate is measured at fair value, less cost to sell at the date of foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value, less cost to sell. Income and expenses from operations and changes in valuation allowance are included in the net expenses from foreclosed real estate. Individually evaluated loans are reported at fair value utilizing level three inputs. For these loans, a review of the collateral is conducted and an appropriate allowance for credit losses is allocated to the loan. At March 31, 2024 , 35 individually analyzed loans with a carrying value of $ 8.7 million were reduced by an ACL totaling $ 297,000 resulting in a net fair value of $ 8.4 million based on Level 3 inputs. At September 30, 2023 , 49 impaired loans with a carrying value of $ 9.7 million were reduced by a specific valuation totaling $ 42,000 resulting in a net fair value of $ 9.7 million based on Level 3 inputs. Assets and Liabilities not Required to be Measured and Reported at Fair Value The following tables provide the carrying value and fair value for certain financial instruments that are not required to be measured or reported at fair value on the Consolidated Balance Sheet at March 31, 2024 and September 30, 2023 by level within the fair value hierarchy: March 31, 2024 (in thousands) Carrying Value Level I Level II Level III Total Fair Financial assets: Investment securities held to maturity $ 49,923 $ - $ - $ 42,139 $ 42,139 Loans receivable, net 1,708,221 - - 1,578,798 1,578,798 Mortgage servicing rights 946 - - 1,490 1,490 Financial liabilities: Deposits $ 1,446,305 $ 1,002,257 $ - $ 420,724 $ 1,422,981 Short term borrowings 467,917 — — 461,352 461,352 Other borrowings 10,000 9,917 9,917 September 30, 2023 (in thousands) Carrying Value Level I Level II Level III Total Fair Financial assets: Investment securities held to maturity $ 52,242 $ - $ 42,090 $ - $ 42,090 Loans receivable, net 1,680,525 - - 1,524,615 1,524,615 Mortgage servicing rights 874 - - 1,470 1,470 Financial liabilities: Deposits $ 1,661,016 $ 1,157,045 $ - $ 499,101 $ 1,656,146 Short-term borrowings 374,652 - - 364,291 364,291

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	11. Accumulated Other Comprehensive Income (Loss) The activity in accumulated other comprehensive income (loss) for the three and six months ended March 31, 2024 and 2023 is as follows (in thousands): Accumulated Other Defined Unrealized Gains Derivatives Total Balance at December 31, 2023 $ 66 $ ( 11,296 ) $ 3,944 $ ( 7,286 ) Other comprehensive (loss) income before - ( 1,052 ) 2,371 1,319 Amounts reclassified from accumulated - - ( 1,871 ) ( 1,871 ) Period change - ( 1,052 ) 500 ( 552 ) Balance at March 31, 2024 $ 66 $ ( 12,348 ) $ 4,444 $ ( 7,838 ) Balance at December 31, 2022 $ ( 1,108 ) $ ( 13,041 ) $ 11,172 $ ( 2,977 ) Other comprehensive (loss) income before - 1,277 ( 374 ) 903 Amounts reclassified from accumulated - - ( 1,810 ) ( 1,810 ) Period change - 1,277 ( 2,184 ) ( 907 ) Balance at March 31, 2023 $ ( 1,108 ) $ ( 11,764 ) $ 8,988 $ ( 3,884 ) Accumulated Other Defined Unrealized Gains Derivatives Total Balance at September 30, 2023 $ 66 $ ( 17,525 ) $ 7,966 $ ( 9,493 ) Other comprehensive income (loss) before — 5,177 205 5,382 Amounts reclassified from accumulated other — — ( 3,727 ) ( 3,727 ) Period change — 5,177 ( 3,522 ) 1,655 Balance at March 31, 2024 $ 66 $ ( 12,348 ) $ 4,444 $ ( 7,838 ) Balance at September 30, 2022 $ ( 1,108 ) $ ( 13,879 ) $ 12,093 $ ( 2,894 ) Other comprehensive income (loss) before reclassifications — 2,115 153 2,268 Amounts reclassified from accumulated other — — ( 3,258 ) ( 3,258 ) Period change — 2,115 ( 3,105 ) ( 990 ) Balance at March 31, 2023 $ ( 1,108 ) $ ( 11,764 ) $ 8,988 $ ( 3,884 ) The following table presents significant amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three and six months ended March 31, 2024 and 2023 (in thousands): Amount Reclassified from Details About Accumulated Other Comprehensive Income (Loss) Components Accumulated Other Comprehensive Income (Loss) for the Three Months Ended March 31, Affected Line Item in the 2024 2023 Derivatives and hedging activities: Interest expense, effective portion 2,368 2,293 Interest expense Related income tax expense ( 497 ) ( 483 ) Income taxes Net effect on accumulated other comprehensive income (loss) 1,871 1,810 Total reclassification for the period $ 1,871 $ 1,810 Amount Reclassified from Accumulated Other Comprehensive Income (Loss) For the Six Months Ended March 31, Affected Line Item in the 2024 2023 Derivative and hedging activities: Interest expense, effective portion 4,718 4,127 Interest expense Related income tax expense ( 991 ) ( 869 ) Income taxes Net effect on accumulated other comprehensive income (loss) 3,727 3,258 Total reclassification for the period $ 3,727 $ 3,258

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	12. Derivatives and Hedging Activities Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities and through the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to certain variable rate borrowings. Fair Values of Derivative Instruments on the Consolidated Balance Sheet The table below presents the fair value of the Company’s derivative financial instruments as of March 31, 2024 and September 30, 2023 (in thousands). Fair Values of Derivative Instruments Asset Derivatives As of March 31, 2024 As of September 30, 2023 Hedged Item Notional Fair Notional Fair FHLB Advances $ 230,000 $ 5,838 $ 230,000 $ 10,086 Commercial Loans 98,291 7,576 86,265 9,576 Total $ 328,291 $ 13,414 $ 316,265 $ 19,662 Fair Values of Derivative Instruments Liability Derivatives As of March 31, 2024 As of September 30, 2023 Hedged Item Notional Fair Notional Fair FHLB Advances $ 50,000 $ 209 $ - $ - Commercial Loans 114,289 7,580 117,516 9,579 Total $ 164,289 $ 7,789 $ 117,516 $ 9,579 Cash Flow Hedges of Interest Rate Risk The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company has entered into interest rate swaps as part of its interest rate risk management strategy. These interest rate swaps are designated as cash flow hedges and involve the receipt of variable rate amounts from a counterparty in exchange for the Company making fixed payments. As of March 31, 2024 , the Company had twelve interest rate swaps with a notional principal amount of $ 280.0 million associated with the Company’s cash outflows associated with various FHLB advances and $ 212.6 million associated with associated with various commercial loans. For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is initially reported in other comprehensive income (outside of earnings), net of tax, and subsequently reclassified to earnings when the hedged transaction affects earnings, and the ineffective portion of changes in the fair value of the derivative is recognized directly in earnings. The Company assesses the effectiveness of each hedging relationship by comparing the changes in cash flows of the derivative hedging instrument with the changes in cash flows of the designated hedged transactions. The Company did not recognize any hedge ineffectiveness in earnings during the three months ended March 31, 2024 and 2023. Amounts reported in accumulated other comprehensive income (loss) related to derivatives that will be reclassified to interest income/expense as interest payments are made/received on the Company’s variable-rate assets/liabilities. During the three months ended March 31, 2024 , the Company had $ 2.4 million of gains, which resulted in a decrease to interest expense. During the three months ended March 31, 2023 , the Company had $ 2.3 million of gains which resulted in a decrease to interest expense. During the six months ended March 31, 2024, the Company had $ 4.7 million of gains, which resulted in a decrease to interest expense. During the six months ended March 31, 2023, the Company had $ 4.1 million in gains which resulted in a decrease to interest expense. During the next twelve months, the Company estimates that $ 5.7 million will be reclassified as a decrease to interest expense. The table below presents the effect of the Company’s cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss) for the three and six months ended March 31, 2024 and 2023 (in thousands). The Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Loss) Derivatives in Hedging Relationships (Gain) Loss Recognized in Location of Gain Gain (Loss) Reclassified Derivatives in Cash Flow Hedging Relationships 2024 2023 2024 2023 Interest Rate Products $ 637 $ ( 2,768 ) Interest expense $ 2,368 $ 2,293 Total $ 637 $ ( 2,768 ) $ 2,368 $ 2,293 Derivatives in Cash Flow Gain (Loss) Recognized in Location of Gain Gain (Loss) Recognized 2024 2023 2024 2023 Interest Rate Products $ ( 4,458 ) $ ( 3,934 ) Interest expense $ 4,718 $ 4,127 Total $ ( 4,458 ) $ ( 3,934 ) $ 4,718 $ 4,127 Credit-risk-related Contingent Features The Company has agreements with its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well / adequately capitalized institution, then the counterparty could terminate the derivative positions and the Company would be required to settle its obligations under the agreements. As of March 31, 2024 and September 30, 2023 , the Company had no derivatives in a net liability position and was no t required to post collateral against its obligations under these agreements. If the Company had breached any of these provisions at March 31, 2024 and September 30, 2023 , it could have been required to settle its obligations under the agreements at the termination value.

Contingent Liabilities

Contingent Liabilities	6 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities	13. Contingent Liabilities Legal Proceedings The Company and its subsidiaries are subject to various legal actions arising in the normal course of business. In the opinion of Management, the resolution of these legal actions is not expected to have a material adverse effect on the Company’s results of operations. The Company and its subsidiary, ESSA Bank and Trust (“ESSA B&T”) were named as defendants, among others, in an action commenced on December 8, 2016 by one plaintiff who sought to pursue the suit as a class action on behalf of the entire class of people similarly situated. The plaintiff alleged that a subsidiary of a bank previously acquired by the Company received unearned fees and kickbacks in the process of making loans, in violation of the Real Estate Settlement Procedures Act. In an order dated January 29, 2018, the district court granted the defendants’ motion to dismiss the case. The plaintiff appealed the court’s ruling. In an opinion and order dated April 26, 2019, the appellate court reversed the district court’s order dismissing the plaintiff’s case against the Company and remanded the case to the district court in order to continue the litigation. The litigation is now proceeding before the district court. On December 9, 2019, the court permitted an amendment to the complaint to add two new plaintiffs to the case asserting similar claims. On May 21, 2020, the court granted the plaintiffs’ motion for class certification. Fact and expert discovery is now complete, and the Company and ESSA B&T filed motions seeking to have the case dismissed (in whole or in part) and/or the class de-certified, as well as for other relief. Plaintiffs opposed the motions. On August 18, 2023 the Court granted the motions to dismiss as to the Company and ESSA B&T, with the result that the only remaining defendant is a now-dissolved former wholly-owned subsidiary of a previously-acquired company. The Court also amended its class certification order. Plaintiffs sought permission to appeal from these and other related rulings but the court denied their request. The Company and ESSA B&T will continue to vigorously defend against plaintiffs’ allegations. To the extent that this matter could result in exposure to the Company and/or ESSA B&T, the amount or range of such exposure is not currently estimable but could be substantial. On May 29, 2020, the Company and ESSA B&T were named as defendants in a second action commenced by three plaintiffs who also sought to pursue the action as a class action on behalf of the entire class of people similarly situated. The plaintiffs allege that a subsidiary of a bank previously acquired by the Company received unearned fees and kickbacks from a different title company than the one involved in the previously discussed litigation in the process of making loans. The original complaint alleged violations of the Real Estate Settlement Procedures Act, the Sherman Act, and the Racketeer Influenced and Corrupt Organizations Act (“RICO”). The plaintiffs filed an Amended Complaint on September 30, 2020 that dropped the RICO claim, but they are continuing to pursue the Real Estate Settlement Procedures Act and Sherman Act claims. The defendants moved to dismiss the Sherman Act claim on October 14, 2020, and that motion was denied on April 2, 2021. On March 13, 2023 the court granted plaintiffs’ motion for class certification. The case is currently in the discovery phase. The Company and ESSA B&T intend to vigorously defend against plaintiffs’ allegations. To the extent that this matter could result in exposure to the Company and/or ESSA B&T, the amount or range of such exposure is not currently estimable but could be substantial.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue Recognition	14. Revenue Recognition Management determined that the primary sources of revenue associated with financial instruments, including interest income on loans and investments, along with certain noninterest revenue sources including investment security gains, loan servicing charges, gains on the sale of loans, and earnings on bank owned life insurance are not within the scope of Topic 606. Noninterest income within the scope of Topic 606 are as follows: Trust and Investment Fees Trust and asset management income is primarily comprised of fees earned from the management and administration of trusts and other customer assets. The Company’s performance obligation is generally satisfied over time and the resulting fees are recognized monthly, based upon the month-end market value of the assets under management and the applicable fee rate. Payment is generally received a few days after month end through a direct charge to customer’s accounts. The Company does not earn performance-based incentives. Optional services such as real estate sales and tax return preparation services are also available to existing trust and asset management customers. The Company’s performance obligation for these transactional-based services is generally satisfied, and related revenue recognized, at a point in time (i.e. as incurred). Payment is received shortly after services are rendered. Service Charges on Deposit Accounts Service charges on deposit accounts consist of account analysis fees (i.e. net fees earned on analyzed business and public checking accounts), monthly service fees, check orders, and other deposit account related fees. The Company’s performance obligation for account analysis fees and monthly service fees is generally satisfied, and the related revenue recognized, over the period in which the service is provided. Check orders and other deposit account related fees are largely transactional based, and therefore, the Company’s performance obligation is satisfied, and related revenue recognized, at a point in time. Payment for service charges on deposit accounts is primarily received immediately or in the following month through a direct charge to customers’ accounts. Fees, Exchange, and Other Service Charges Fees, interchange, and other service charges are primarily comprised of debit card income, ATM fees, cash management income, and other services charges. Debit card income is primarily comprised of interchange fees earned whenever the Company’s debit cards are processed through card payment networks such as Mastercard. ATM fees are primarily generated when a Company cardholder uses a non-Company ATM or a non-Company cardholder uses a company ATM. Other service charges include revenue from processing wire transfers, bill pay service, cashier’s checks, and other services. The Company’s performance obligation for fees, exchange, and other service charges are largely satisfied, and related revenue recognized when the services are rendered or upon completion. Payment is typically received immediately or in the following month. Insurance Commissions Insurance income primarily consists of commissions received on product sales. The Company acts as an intermediary between the Company’s customer and the insurance carrier. The Company’s performance obligation is generally satisfied upon the issuance of the policy. Shortly after the policy is issued, the carrier remits the commission payment to the Company, and the Company recognizes the revenue.

Accounting Pronouncements (Poli

Accounting Pronouncements (Policies)	6 Months Ended
	Mar. 31, 2024
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2023, the FASB issued ASU No. 2023-02, " Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method (a consensus of the Emerging Issues Task Force) ". The ASU allows entities to elect the proportional amortization method, on a tax-credit-program-by-tax-credit-program basis, for all equity investments in tax credit programs meeting the eligibility criteria in Accounting Standards Codification (ASC) 323-740-25-1. While the ASU does not significantly alter the existing eligibility criteria, it does provide clarifications to address existing interpretive issues. It also prescribes specific information reporting entities must disclose about tax credit investments each period. This ASU is effective for reporting periods beginning after December 15, 2023, for public business entities, or January 1, 2024 for the Company. The Company does not expect the adoption of this ASU to have a material impact on the Company's financial statements. In July 2023, the FASB issued ASU 2023-03, Presentation of Financial Statements (Topic 205), Income Statement-Reporting Comprehensive Income (Topic 220), Distinguishing Liabilities from Equity (Topic 480), Equity (Topic 505), and Compensation-Stock Compensation (Topic 718) , which amends or supersedes various SEC paragraphs within the Codification to conform to past SEC announcements and guidance issued by the SEC. The ASU does not provide any new guidance so there is no transition or effective date associated with it. This ASU did not have a significant impact on the Company’s financial statements. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (TOPIC 280): Improvements to Reportable Segment Disclosures , which requires public entities to disclose information about their reportable segments’ significant expenses on an interim and annual basis. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. Public entities are required to adopt the changes retrospectively, recasting each prior-period disclosure for which a comparative income statement is presented in the period of adoption. This Update is not expected to have a significant impact on the Company’s financial statements. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures , which provides for improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. This ASU is effective for public business entities for annual period beginning after December 15, 2024. This Update is not expected to have a significant impact on the Company’s financial statements. In March 2024, the FASB issued ASU 2024-01, Compensation – Stock Compensation (Topic 718), amended the guidance in ASC 718 to add an example showing how to apply the scope guidance to determine whether profits interest and similar awards should be accounted for as share-based payment arrangements. For public business entities, the guidance is effective for fiscal years beginning after December 15, 2024, and interim periods within those fiscal years. For all other entities, it is effective for fiscal years beginning after December 15, 2025, and interim periods within those fiscal years. This Update is not expected to have a significant impact on the Company’s financial statements. In March 2024, the FASB issued ASU 2024-02, Codification Improvements—Amendments to Remove References to the Concepts Statements. This ASU removes various references to the FASB’s Concepts Statements from the FASB’s Accounting Standards Codification. The FASB does not expect these updates to have a significant effect on current accounting practice. That is because in most cases the amendments to the Codification remove references to Concept Statements that are extraneous and not required to understand or apply the guidance. However, the FASB has provided transition guidance if applying the updated guidance results in accounting changes for some entities. The amendments in ASU 2024-02 are effective for public business entities for fiscal years beginning after December 15, 2024. For all other entities, the amendments are effective for fiscal years beginning after December 15, 2025. This Update is not expected to have a significant impact on the Company’s financial statements.

Accounting Pronouncements (Tabl

Accounting Pronouncements (Tables)	6 Months Ended
	Mar. 31, 2024
Accounting Standards Update and Change in Accounting Principle [Abstract]
Summary of the Change from the Incurred Loss Model to the Current Expected Credit Loss Model	The impact of the change from the incurred loss model to the current expected credit loss model is detailed below (in thousands). October 1, 2023 Pre-adoption Adoption Impact As Reported Assets ACL on debt securities held-to-maturity $ - $ - $ - ACL on debt securities available for sale - - - ACL on debt securities loans Real estate loans: - - - Residential 4,897 503 5,400 Construction 183 254 437 Commercial 11,983 ( 3,729 ) 8,254 Commercial 941 ( 292 ) 649 Obligations of states and political subdivisions 110 129 239 Home equity loans and lines of credit 346 423 769 Auto loans 2 2 4 Other 22 ( 4 ) 18 Unallocated 41 ( 41 ) - Liabilites ACL for unfunded commitments 52 2,083 2,135 $ 18,577 $ ( 672 ) $ 17,905

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Composition of the Weighted-Average Common Shares (Denominator) Used in the Basic and Diluted Earnings Per Share Computation	The following table sets forth the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computation for the three and six months ended March 31, 2024 and 2023. Three Months Ended Six Months Ended March 31, March 31, March 31, March 31, 2024 2023 2024 2023 Weighted-average common shares outstanding 18,133,095 18,133,095 18,133,095 18,133,095 Average treasury stock shares ( 8,001,574 ) ( 7,730,573 ) ( 7,931,665 ) ( 7,732,689 ) Average unearned ESOP shares ( 592,281 ) ( 637,547 ) ( 597,970 ) ( 643,266 ) Average unearned non-vested shares ( 25,584 ) ( 47,031 ) ( 27,730 ) ( 49,803 ) Weighted average common shares and common stock 9,513,656 9,717,944 9,575,730 9,707,337 Additional common stock equivalents (nonvested stock) 142 2,674 — 3,358 Weighted average common shares and common stock 9,513,798 9,720,618 9,575,730 9,710,695

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost, Gross Unrealized Gains and Losses, Allowance for Credit Losses and Fair Value of Investment Securities	The amortized cost, gross unrealized gains and losses, allowance for credit losses and fair value of investment securities are summarized as follows (in thousands): March 31, 2024 Amortized Gross Gross Allowance for Fair Value Available for Sale Fannie Mae $ 59,238 $ 213 $ ( 4,287 ) $ - $ 55,164 Freddie Mac 54,016 30 ( 3,501 ) - 50,545 Governmental National Mortgage Association 17,194 38 ( 515 ) - 16,717 Total mortgage-backed securities 130,448 281 ( 8,303 ) - 122,426 Obligations of states and political subdivisions 9,573 - ( 499 ) - 9,074 U.S. government agency securities 6,578 - ( 68 ) - 6,510 Corporate obligations 75,950 33 ( 6,535 ) - 69,448 Other debt securities 8,406 25 ( 568 ) - 7,863 Total $ 230,955 $ 339 $ ( 15,973 ) $ - $ 215,321 Amortized Gross Gross Fair Value Allowance for Held to Maturity Fannie Mae $ 26,303 $ - $ ( 4,014 ) $ 22,289 $ - Freddie Mac 21,172 - ( 3,367 ) 17,805 - Total mortgage-backed securities 47,475 - ( 7,381 ) 40,094 - U.S. government agency securities 2,448 - ( 403 ) 2,045 - Total $ 49,923 $ - $ ( 7,784 ) $ 42,139 $ - September 30, 2023 Amortized Gross Gross Fair Value Available for sale Fannie Mae $ 55,878 $ - $ ( 6,418 ) $ 49,460 Freddie Mac 49,833 1 ( 5,552 ) 44,282 Governmental National Mortgage Association securities 6,986 - ( 397 ) 6,589 Total mortgage-backed securities 112,697 1 ( 12,367 ) 100,331 Obligations of states and political subdivisions 9,794 - ( 742 ) 9,052 U.S. government treasury securities 123,562 19 ( 1 ) 123,580 U.S. government agency securities 29,089 - ( 137 ) 28,952 Corporate obligations 73,962 - ( 8,241 ) 65,721 Other debt securities 7,139 - ( 719 ) 6,420 Total $ 356,243 $ 20 $ ( 22,207 ) $ 334,056 Held to maturity Fannie Mae $ 27,652 $ - $ ( 5,217 ) $ 22,435 Freddie Mac 22,145 - ( 4,424 ) 17,721 Total 49,797 - ( 9,641 ) 40,156 U.S. government agency securities 2,445 - ( 511 ) 1,934 Total $ 52,242 $ - $ ( 10,152 ) $ 42,090
Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity	The amortized cost and fair value of debt securities at March 31, 2024, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties (in thousands): Available For Sale Held to Maturity Amortized Fair Value Amortized Fair Value Due in one year or less $ 5,030 $ 4,987 $ — $ — Due after one year through five years 37,825 36,192 — — Due after five years through ten years 69,246 62,594 6,606 5,782 Due after ten years 118,854 111,548 43,317 36,357 Total $ 230,955 $ 215,321 $ 49,923 $ 42,139
Schedule of Gross Unrealized Losses and Fair Value	(dollars in thousands): March 31, 2024 Number of Less than Twelve Twelve Months or Total Fair Gross Fair Gross Fair Gross Fannie Mae 77 $ 5,032 $ ( 24 ) $ 65,743 $ ( 8,277 ) $ 70,775 $ ( 8,301 ) Freddie Mac 66 7,090 ( 77 ) 58,233 ( 6,791 ) 65,323 ( 6,868 ) Governmental National Mortgage 18 8,370 ( 135 ) 4,152 ( 380 ) 12,522 ( 515 ) U.S. government agency securities 4 2,074 ( 4 ) 6,481 ( 467 ) 8,555 ( 471 ) Obligations of states and political 10 9,074 ( 499 ) 9,074 ( 499 ) Corporate obligations 83 2,621 ( 236 ) 61,484 ( 6,299 ) 64,105 ( 6,535 ) Other debt securities 17 375 - 5,539 ( 568 ) 5,914 ( 568 ) Total 275 $ 25,562 $ ( 476 ) $ 210,706 $ ( 23,281 ) $ 236,268 $ ( 23,757 ) September 30, 2023 Less than Twelve Twelve Months or Greater Total Number of Fair Gross Fair Gross Fair Gross Fannie Mae 77 $ 5,675 $ ( 196 ) $ 66,220 $ ( 11,439 ) $ 71,895 $ ( 11,635 ) Freddie Mac 63 3,828 ( 159 ) 57,168 ( 9,817 ) 60,996 ( 9,976 ) Governmental National Mortgage 14 2,151 ( 51 ) 4,438 ( 346 ) 6,589 ( 397 ) Obligations of states and political 11 - - 9,052 ( 742 ) 9,052 ( 742 ) U.S. government treasury securities 1 24,705 ( 1 ) - - 24,705 ( 1 ) U.S. government agency securities 4 24,582 ( 6 ) 6,304 ( 642 ) 30,886 ( 648 ) Corporate obligations 87 6,045 ( 273 ) 59,677 ( 7,968 ) 65,722 ( 8,241 ) Other debt securities 17 395 - 6,025 ( 719 ) 6,420 ( 719 ) Total 274 $ 67,381 $ ( 686 ) $ 208,884 $ ( 31,673 ) $ 276,265 $ ( 32,359 )

Loans Receivable, Net and All_2

Loans Receivable, Net and Allowance for Credit Losses on Loans (Tables)	6 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Summary of Loans Receivable	Loans receivable consist of the following (in thousands): March 31, 2024 September 30, 2023 Real estate loans: Residential $ 710,272 $ 713,326 Construction 15,949 16,768 Commercial 856,096 821,958 Commercial 41,033 48,143 Obligations of states and political subdivisions 49,007 48,118 Home equity loans and lines of credit 49,594 48,212 Auto loans 145 523 Other 1,541 2,002 1,723,637 1,699,050 Less allowance for credit losses 15,416 18,525 Net loans $ 1,708,221 $ 1,680,525
Schedule of Loans Evaluated for Impairment	The following table shows the amount of loans in each category that were individually and collectively evaluated for credit loss at the dates indicated (in thousands): Total Loans Individually Collectively March 31, 2024 Real estate loans: Residential $ 710,272 $ 1,318 $ 708,954 Construction 15,949 - 15,949 Commercial 856,096 6,397 849,699 Commercial 41,033 926 40,107 Obligations of states and political subdivisions 49,007 - 49,007 Home equity loans and lines of credit 49,594 23 49,571 Auto loans 145 7 138 Other 1,541 - 1,541 Total $ 1,723,637 $ 8,671 $ 1,714,966 The following table shows the amount of loans in each category that were individually and collectively evaluated for impairment at the dates indicated (in thousands): Total Loans Individually Collectively September 30, 2023 Real estate loans: Residential $ 713,326 $ 1,393 $ 711,933 Construction 16,768 - 16,768 Commercial 821,958 7,664 814,294 Commercial 48,143 648 47,495 Obligations of states and political subdivisions 48,118 - 48,118 Home equity loans and lines of credit 48,212 27 48,185 Auto loans 523 - 523 Other 2,002 3 1,999 Total $ 1,699,050 $ 9,735 $ 1,689,315
Schedule of Investment and Unpaid Principal Balances for Impaired Loans	The following table includes the recorded investment and unpaid principal balances for impaired loans with the associated allowance amount at the dates indicated, if applicable under ASC 310 (in thousands): Recorded Unpaid Associated September 30, 2023 With no specific allowance recorded: Real Estate Loans Residential $ 1,294 $ 2,091 $ - Construction - - - Commercial 6,240 7,094 - Commercial 648 960 - Obligations of states and political subdivisions - - - Home equity loans and lines of credit 27 62 - Auto Loans - - - Other 3 17 - Total 8,212 10,224 - With an allowance recorded: Real Estate Loans Residential 99 103 7 Construction - - - Commercial 1,424 1,562 35 Commercial - - - Obligations of states and political subdivisions - - - Home equity loans and lines of credit - - - Auto Loans - - - Other - - - Total 1,523 1,665 42 Total: Real Estate Loans Residential 1,393 2,194 7 Construction - - - Commercial 7,664 8,656 35 Commercial 648 960 - Obligations of states and political subdivisions - - - Home equity loans and lines of credit 27 62 - Auto Loans - - - Other 3 17 - Total Impaired Loans $ 9,735 $ 11,889 $ 42 The following tables represents the average recorded investments in the impaired loans and the related amount of interest recognized during the time within the periods that the impaired loans were impaired under ASC 310 (in thousands): For the Three Months Ended March 31, 2023 2023 Average Interest With no specific allowance recorded: Real estate loans Residential $ 1,156 $ 1 Construction - - Commercial 7,310 1 Commercial 369 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 33 - Auto loans 4 - Other 5 - Total 8,877 2 With an allowance recorded: Real estate loans Residential 102 - Construction - - Commercial 3,393 - Commercial 552 - Obligations of states and political subdivisions - - Home equity loans and lines of credit - - Auto loans - - Other - - Total 4,047 - Total: Real estate loans Residential 1,258 1 Construction - - Commercial 10,703 1 Commercial 921 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 33 - Auto loans 4 - Other 5 - Total Impaired Loans $ 12,924 $ 2 For the Six Months Ended March 31, 2023 2023 Average Interest With no specific allowance recorded: Real estate loans Residential $ 1,186 $ 2 Construction - - Commercial 8,937 1 Commercial 534 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 34 - Auto loans 5 - Other 5 - Total 10,701 3 With an allowance recorded: Real estate loans Residential 102 - Construction - - Commercial 2,481 - Commercial 392 - Obligations of states and political subdivisions - - Home equity loans and lines of credit - - Auto loans - - Other - - Total 2,975 - Total: Real estate loans Residential 1,288 2 Construction - - Commercial 11,418 1 Commercial 926 - Obligations of states and political subdivisions - - Home equity loans and lines of credit 34 - Auto loans 5 - Other 5 - Total Impaired Loans $ 13,676 $ 3
Classes of the Loan Portfolio, Internal Risk Rating System	Based on the most recent analysis performed, the following table presents the recorded investment in non-homogenous pools by internal risk rating systems under ASC 326 (in thousands); Revolving Revolving Term Loans Amortized on Cost Basis by Origination Year Loans Loans Amortized Converted March 31, 2024 2024 2023 2022 2021 2020 Prior Cost Basis to Term Total Commercial real estate Risk Rating Pass $ 37,840 $ 84,923 $ 132,921 $ 128,636 $ 76,969 $ 189,218 $ 192,683 $- $ 843,190 Special Mention - - - - 2,283 64 - - 2,347 Substandard - - - 774 - 9,785 - - 10,559 Doubtful - - - - - - - - - Total $ 37,840 $ 84,923 $ 132,921 $ 129,410 $ 79,252 $ 199,067 $ 192,683 $- $ 856,096 Commercial real estate Current period gross charge-offs $- $- $- $ 15 $- $- $- $- $ 15 Commercial Risk Rating Pass $ 3,069 $ 12,108 $ 4,590 $ 2,254 $ 4,996 $ 10,103 $ 1,610 $- $ 38,730 Special Mention - - - - - - - - - Substandard - - - 512 292 1,499 - - 2,303 Doubtful - - - - - - - - - Total $ 3,069 $ 12,108 $ 4,590 $ 2,766 $ 5,288 $ 11,602 $ 1,610 $- $ 41,033 Commercial Current period gross charge-offs $- $- $- $ 23 $- $- $- $- $ 23 Obligations of states and political subdivisions Risk Rating Pass $ 2,359 $ 4,629 $ 8,880 $ 7,808 $ 16,931 $- $ 8,400 $- $ 49,007 Special Mention - - - - - - - - - Substandard - - - - - - - - - Doubtful - - - - - - - - - Total $ 2,359 $ 4,629 $ 8,880 $ 7,808 $ 16,931 $- $ 8,400 $- $ 49,007 Obligations of states and political subdivisions Current period gross charge-offs $- $- $- $- $- $- $- $- $- Total Pass $ 43,268 $ 101,660 $ 146,391 $ 138,698 $ 98,896 $ 199,321 $ 202,693 $- $ 930,927 Special Mention - - - - 2,283 64 - - 2,347 Substandard - - - 1,286 292 11,284 - - 12,862 Doubtful - - - - - - - - - Total $ 43,268 $ 101,660 $ 146,391 $ 139,984 $ 101,471 $ 210,669 $ 202,693 $- $ 946,136 The following table presents the classes of the loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard, and Doubtful or Loss within the internal risk rating system at September 30, 2023 under ASC 310 (in thousands): Pass Special Substandard Doubtful Total September 30, 2023 Commercial real estate loans $ 807,736 $ 3,200 $ 11,022 $ - $ 821,958 Commercial 46,452 - 1,691 - 48,143 Obligations of states and political subdivisions 48,118 - - - 48,118 Total $ 902,306 $ 3,200 $ 12,713 $ - $ 918,219
Schedule of Performing or Nonperforming Loans	The Company monitors the credit risk profile by payment activity for residential and consumer loan classes. Loans past due over 90 days and loans on nonaccrual status are considered nonperforming. Nonperforming loans are reviewed monthly. The following table presents the carrying value of residential and consumer loans based on payment activity under ASC 326 (in thousands): Revolving Revolving Term Loans Amortized on Cost Basis by Origination Year Loans Loans Amortized Converted March 31, 2024 2024 2023 2022 2021 2020 Prior Cost Basis to Term Total Residential real estate Payment Performance Performing $ 13,673 $ 96,261 $ 151,974 $ 137,158 $ 105,190 $ 203,570 $ - $ - $ 707,826 Nonperforming - 202 - - - 2,244 - - 2,446 Total $ 13,673 $ 96,463 $ 151,974 $ 137,158 $ 105,190 $ 205,814 $ - $ - $ 710,272 Residential real estate Current period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - $ - Construction Payment Performance Performing $ 2,615 $ 11,126 $ 2,208 $ - $ - $ - $ - $ - $ 15,949 Nonperforming - - - - - - - - - Total $ 2,615 $ 11,126 $ 2,208 $ - $ - $ - $ - $ - $ 15,949 Construction Current period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - $ - Home equity loans and lines of credit - Payment Performance Performing $ 2,693 $ 11,378 $ 7,612 $ 1,984 $ 1,599 $ 3,213 $ 19,984 $ 1,087 $ 49,550 Nonperforming - - - - - 43 - - 43 Total $ 2,693 $ 11,378 $ 7,612 $ 1,984 $ 1,599 $ 3,256 $ 19,984 $ 1,087 $ 49,593 Home equity loans and lines of credit Current period gross charge-offs $ - $ - $ - $ - $ - $ - $ - $ - $ - Auto - Payment Performance Performing $ - $ - $ - $ - $ 138 $ - $ - $ 138 Nonperforming - - - - - 7 - - 7 Total $ - $ - $ - $ - $ - $ 145 $ - $ - $ 145 Auto Current period gross charge-offs $ - $ - $ - $ - $ - $ 6 $ - $ - $ 6 Other - Payment Performance Performing $ 219 $ 483 $ 217 $ 126 $ 44 $ 25 $ 400 $ - $ 1,514 Nonperforming - - - - - 27 - - 27 Total $ 219 $ 483 $ 217 $ 126 $ 44 $ 52 $ 400 $ - $ 1,541 Other Current period gross charge-offs $ - $ - $ - $ - $ - $ 10 $ - $ - $ 10 Total Payment Performance Performing $ 19,200 $ 119,248 $ 162,011 $ 139,268 $ 106,833 $ 206,946 $ 20,384 $ 1,087 $ 774,977 Nonperforming - 202 - - - 2,321 - - 2,523 Total $ 19,200 $ 119,450 $ 162,011 $ 139,268 $ 106,833 $ 209,267 $ 20,384 $ 1,087 $ 777,500 . The following table presents the risk ratings in the consumer categories of performing and non-performing loans at and September 30, 2023 under ASC 310(in thousands): Performing Non- Total September 30, 2023 Real estate loans: Residential $ 710,757 $ 2,569 $ 713,326 Construction 16,768 - 16,768 Home equity loans and lines of credit 48,165 47 48,212 Auto loans 523 - 523 Other 1,972 30 2,002 Total $ 778,185 $ 2,646 $ 780,831
Classes of the Loan Portfolio Summarized by the Aging Categories	The following tables present the classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans as of March 31, 2024 and September 30, 2023 (in thousands): 31-60 Days 61-89 Days 90 + Days Total Total Current Past Due Past Due Past Due Past Due Loans March 31, 2024 Real estate loans: Residential $ 706,000 $ 2,120 $ 277 $ 1,875 $ 4,272 $ 710,272 Construction 15,949 - - - - 15,949 Commercial 854,098 161 159 1,678 1,998 856,096 Commercial 40,228 - 592 213 805 41,033 Obligations of states and political subdivisions 49,007 - - - - 49,007 Home equity loans and lines of credit 49,573 - - 21 21 49,594 Auto loans 136 2 7 - 9 145 Other 1,516 - 25 - 25 1,541 Total $ 1,716,507 $ 2,283 $ 1,060 $ 3,787 $ 7,130 $ 1,723,637 31-60 Days 61-89 Days 90 + Days Total Total Current Past Due Past Due Past Due Past Due Loans September 30, 2023 Real estate loans: Residential $ 710,290 $ 792 $ 199 $ 2,045 $ 3,036 $ 713,326 Construction 16,768 - - - - 16,768 Commercial 820,853 240 - 865 1,105 821,958 Commercial 47,893 - - 250 250 48,143 Obligations of states and political subdivisions 48,118 - - - - 48,118 Home equity loans and lines of credit 48,191 - - 21 21 48,212 Auto loans 485 37 1 - 38 523 Other 1,959 10 33 - 43 2,002 Total $ 1,694,557 $ 1,079 $ 233 $ 3,181 $ 4,493 $ 1,699,050
Schedule of Financing Receivable Collateral Dependant Loans	The following table presents the collateral-dependent loans by portfolio segment at March 31, 2024 (in thousands): Real Estate Business Assets Other March 31, 2024 Real estate loans: Residential $ 1,318 Construction - Commercial 6,397 Commercial - 926 Obligations of states and political subdivisions - Home equity loans and lines of credit 23 Auto loans - 7 Other - - Total $ 7,738 $ 926 $ 7
Amortized Cost Basis of Loans on Nonaccrual Status and Loans Past Due Over 90 Days and Still Accruing	The following table presents the amortized cost basis of loans on nonaccrual status and loans past due over 90 days and still accruing interest as of March 31, 2024 (in thousands): Nonaccrual with no ACL Nonaccrual with ACL Total Nonaccrual Loans Past due over 90 days and still Accruing Total nonperforming March 31, 2024 Real estate loans: Residential $ 2,350 $ 96 $ 2,446 $ - $ 2,446 Construction - - - - - Commercial 7,307 - 7,307 - 7,307 Commercial 638 292 930 - 930 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 43 - 43 - 43 Auto loans 7 - 7 - 7 Other 27 - 27 - 27 Total $ 10,372 $ 388 $ 10,760 $ - $ 10,760 The following table presents nonaccrual loans as of September 30, 2023 under ASC 310 (in thousands): Non-Accrual Loans September 30, 2023 Real estate loans: Residential $ 2,569 Construction - Commercial 7,763 Commercial 652 Obligations of states and - Home equity loans and lines of 47 Auto loans - Other 30 Total $ 11,061
Summary of Primary Segments of Allowance of Credit Losses	The following table summarizes changes in the primary segments of the allowance for credit losses during the three and six months ended March 31, 2024 and 2023 (in thousands): Home Obligations of Equity States and Loans and Real Estate Loans Commercial Political Lines of Auto Other Residential Construction Commercial Loans Subdivisions Credit Loans Loans Unallocated Total Beginning balance at December 31, 2023 $ 4,889 $ 431 $ 8,377 $ 690 $ 276 $ 746 $ 3 $ 18 $ - $ 15,430 Charge-offs - - ( 15 ) ( 22 ) - - ( 6 ) - - ( 43 ) Recoveries 1 - 37 - - 1 1 - - 40 Provision 63 ( 98 ) ( 368 ) 375 2 13 4 ( 2 ) - ( 11 ) Ending balance at March 31, 2024 $ 4,953 $ 333 $ 8,031 $ 1,043 $ 278 $ 760 $ 2 $ 16 $ - $ 15,416 ALL balance at December 31, 2022 $ 5,286 $ 328 $ 11,194 $ 1,048 $ 275 $ 372 $ 14 $ 22 $ 202 $ 18,741 Charge-offs - - ( 593 ) - - - ( 6 ) - - ( 599 ) Recoveries - - - - - 1 22 - - 23 Provision ( 416 ) - 415 137 ( 32 ) ( 37 ) ( 22 ) - 105 150 ALL balance at March 31, 2023 $ 4,870 $ 328 $ 11,016 $ 1,185 $ 243 $ 336 $ 8 $ 22 $ 307 $ 18,315 ALL balance at September 30, 2023 $ 4,897 $ 183 $ 11,983 $ 941 $ 110 $ 346 $ 2 $ 22 $ 41 $ 18,525 Impact or adopting ASC 326 503 254 ( 3,729 ) ( 292 ) 129 423 2 ( 4 ) ( 41 ) ( 2,755 ) Charge-offs - - ( 15 ) ( 22 ) - - ( 6 ) ( 10 ) - ( 53 ) Recoveries 1 - 37 - - 4 8 - - 50 Provision ( 448 ) ( 104 ) ( 245 ) 416 39 ( 13 ) ( 4 ) 8 - ( 351 ) ALL balance at March 31, 2024 $ 4,953 $ 333 $ 8,031 $ 1,043 $ 278 $ 760 $ 2 $ 16 $ - $ 15,416 ALL balance at September 30, 2022 $ 5,122 $ 319 $ 10,754 $ 698 $ 283 $ 361 $ 22 $ 22 $ 947 $ 18,528 Charge-offs — - ( 593 ) - - - ( 27 ) - - ( 620 ) Recoveries 2 - 1 - - 52 52 - - 107 Provision ( 254 ) 9 854 487 ( 40 ) ( 77 ) ( 39 ) - ( 640 ) 300 ALL balance at March 31, 2023 $ 4,870 $ 328 $ 11,016 $ 1,185 $ 243 $ 336 $ 8 $ 22 $ 307 $ 18,315 The following table summarizes the amount of loans in each segments that were individually and collectively evaluated for credit loss as of March 31, 2024 (in thousands): Home Obligations of Equity States and Loans and Real Estate Loans Commercial Political Lines of Other Residential Construction Commercial Loans Subdivisions Credit Auto Loans Loans Unallocated Total Individually $ 5 $ - $ - $ 292 $ - $ - $ - $ - $ - $ 297 Collectively 4,948 333 8,031 751 278 760 2 16 - 15,119 Ending balance at March 31, 2024 $ 4,953 $ 333 $ 8,031 $ 1,043 $ 278 $ 760 $ 2 $ 16 $ - $ 15,416 The following table summarizes the primary segments of the ALL, segregated into two categories, the amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment as of September 30, 2023 (in thousands): Home Obligations of Equity States and Loans and Real Estate Loans Commercial Political Lines of Other Residential Construction Commercial Loans Subdivisions Credit Auto Loans Loans Unallocated Total Individually $ 7 $ - $ 35 $ - $ - $ - $ - $ - $ - $ 42 Collectively 4,890 183 11,948 941 110 346 2 22 41 18,483 ALL balance at September 30, 2023 $ 4,897 $ 183 $ 11,983 $ 941 $ 110 $ 346 $ 2 $ 22 $ 41 $ 18,525
Summary of Troubled Debt Restructurings Granted	The following table shows the amortized cost basis at the end of the reporting period of the loans modified to borrowers Loan Modifications Made to Borrowers Experiencing Financial Difficulty Combination - Term Extension and Interest Rate Reduction Amortized Cost Basis % of Total Class of at March 31, 2024 Financing Receivable Real estate loans: Residential $ 71 0.01 % Total S 71 The following table describes the financial effect of the modifications made to borrowers experiencing financial difficulty under ASC 326 during the six months ended March 31, 2024: Combination - Term Extension and Interest Rate Reduction Loan Type Financial Effect Real estate loans: Residential Reduced weighted-average contractual interest rate form 7.25 % to 5 %. Extended term for 360 months. Only one loan was modified. The Bank closely monitors the performance of the loans that are modified to borrowers experiencing financial difficulty to understand the effectiveness of its modification efforts. The following table depicts the performance of loans that have been modified in the last 6 months under ASC 326 (in thousands): 31-60 Days 61-89 Days 90 + Days Total Current Past Due Past Due Past Due Past Due March 31, 2024 Real estate loans: Residential $ 71 $ - $ - $ - $ 71 Construction - - - - - Commercial - - - - - Commercial - - - - - Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit - - - - - Auto loans - - - - - Other - - - - - Total $ 71 $ - $ - $ - $ 71 The following is a summary of troubled debt restructuring granted during the six months ended March 31, 2023 under ASC 310(dollars in thousands): For the Six Months Ended March 31, 2024 Number of Pre-Modification Post-Modification Troubled Debt Restructurings Real estate loans: Residential 1 $ 51 $ 54 Construction — — — Commercial — — — Commercial — — — Obligations of states and political subdivisions — — — Home equity loans and lines of credit — — — Auto loans — — — Other — — — Total 1 $ 51 $ 54

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Mar. 31, 2024
Deposits Liabilities Disclosures [Abstract]
Schedule of Deposits by Major Classifications	Deposits consist of the following major classifications (in thousands): March 31, 2024 September 30, 2023 Non-interest bearing demand accounts $ 266,367 $ 280,473 Interest bearing demand accounts 276,534 346,458 Money market accounts 302,534 366,866 Savings and club accounts 156,822 163,248 Certificates of deposit 444,048 503,971 Total $ 1,446,305 $ 1,661,016

Net Periodic Benefit Cost-Def_2

Net Periodic Benefit Cost-Defined Benefit Plan (Tables)	6 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Summary of the Components of Net Periodic Benefit Cost (Income)	The following table comprises the components of net periodic benefit cost (income) for the three and six months ended March 31, 2024 and 2023 (in thousands): For the Three Months Ended March 31, For the Six Months Ended March 31, 2024 2023 2024 2023 Service Cost $ - $ - $ - $ - Interest Cost 173 164 344 328 Expected return on plan assets ( 262 ) ( 242 ) ( 523 ) ( 484 ) Partial settlement - - — - Amortization of net loss from earlier periods - - — — Net periodic benefit income $ ( 89 ) $ ( 78 ) $ ( 179 ) $ ( 156 )

Equity Incentive Plan (Tables)

Equity Incentive Plan (Tables)	6 Months Ended
	Mar. 31, 2024
Postemployment Benefits [Abstract]
Schedule of Restricted Stock Option Activity	The following is a summary of the status of the Company’s restricted stock as of March 31, 2024, and changes therein during the six month period then ended: Number of Stock Weighted- Nonvested at September 30, 2023 32,512 $ 17.03 Granted 40,586 14.85 Vested ( 14,268 ) 14.57 Forfeited — — Nonvested at March 31, 2024 58,830 $ 16.12

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value For Assets and Liabilities Required to be Measured and Reported at Fair Value on a Recurring Basis	The following tables provide the fair value for assets and liabilities required to be measured and reported at fair value on a recurring basis on the Consolidated Balance Sheet as of March 31, 2024 and September 30, 2023 by level within the fair value hierarchy (in thousands). Recurring Fair Value Measurements at Reporting Date March 31, 2024 Assets Level I Level II Level III Total Investment securities available for sale: Mortgage backed securities $ - $ 122,426 $ - $ 122,426 Obligations of states and political subdivisions - 9,074 - 9,074 U.S. government agency securities - 6,510 - 6,510 Corporate obligations - 66,389 3,059 69,448 Other debt securities - 7,863 - 7,863 Total debt securities $ - $ 212,262 $ 3,059 $ 215,321 Equity securities- financial services 27 - - 27 Derivatives and hedging activities - 13,414 - 13,414 Liabilities Derivatives and hedging activities $ - $ 7,789 $ - $ 7,789 September 30, 2023 Assets Level I Level II Level III Total Investment securities available for sale: Mortgage backed securities $ - $ 100,331 $ - $ 100,331 Obligations of states and political subdivisions - 9,052 - 9,052 U.S. government treasury securities 123,580 - 123,580 U.S. government agency securities - 28,952 - 28,952 Corporate obligations - 62,885 2,836 65,721 Other debt securities - 6,420 - 6,420 Total debt securities $ - $ 331,220 $ 2,836 $ 334,056 Equity securities-financial services 32 - - 32 Derivatives and hedging activities - 19,662 - 19,662 Liabilities: Derivatives and hedging activities $ - $ 9,579 $ - $ 9,579
Schedule of Changes in Fair Value of Level III Investments	The following table presents a summary of changes in the fair value of the Company’s Level III investments for the three months ended March 31, 2024 and 2023 (in thousands). Fair Value Measurement Using Three Months Ended March 31, 2024 March 31, 2023 Beginning balance $ 2,975 $ 7,199 Purchases, sales, issuances, settlements, net - - Total unrealized (loss) gain: Included in earnings - - Included in other comprehensive (loss) income 84 ( 253 ) Transfers in and/or out of Level III - ( 3,517 ) $ 3,059 $ 3,429
Schedule of Fair Value For Assets Required to be Measured and Reported at Fair Value on a Nonrecurring Basis	The following tables provide the fair value for assets required to be measured and reported at fair value on a non-recurring basis on the Consolidated Balance Sheet as of March 31, 2024 and September 30, 2023 by level within the fair value hierarchy: Non-Recurring Fair Value Measurements at Reporting Date (in thousands) March 31, 2024 Level I Level II Level III Total Foreclosed real estate $ - $ - $ 3,195 $ 3,195 Individually evaluated loans held for investment - - 8,374 8,374 September 30, 2023 Level I Level II Level III Total Foreclosed real estate $ - $ - $ 3,311 $ 3,311 Impaired loans - - 9,693 9,693
Summary of Additional Quantitative Information about Assets Measured at Fair Value on a Nonrecurring Basis	The following tables present additional quantitative information about assets measured at fair value on a nonrecurring basis and for which the Company has utilized Level 3 inputs to determine fair value: Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Unobservable Range (Average) March 31, 2024 Individually evaluated loans held for investment $ 8,374 Appraisal of (1) Appraisal (2) 0 % to 35 % 20.8 %) Foreclosed real estate owned 3,195 Appraisal of (1) Appraisal (2) 10 % 10.0 %) Quantitative Information about Level 3 Fair Value Measurements (dollars in thousands) Fair Value Valuation Unobservable Range (Average) September 30, 2023 Impaired loans $ 9,693 Appraisal of (1) Appraisal (2) 0 % to 35 % 20.8 %) Foreclosed real estate owned 3,311 Appraisal of (1) Appraisal (2) 10 to 35 % 10.2 %) (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.
Schedule of Carrying Value and Fair Value for Certain Financial Instruments not Required to be Measured and Reported at Fair Value	The following tables provide the carrying value and fair value for certain financial instruments that are not required to be measured or reported at fair value on the Consolidated Balance Sheet at March 31, 2024 and September 30, 2023 by level within the fair value hierarchy: March 31, 2024 (in thousands) Carrying Value Level I Level II Level III Total Fair Financial assets: Investment securities held to maturity $ 49,923 $ - $ - $ 42,139 $ 42,139 Loans receivable, net 1,708,221 - - 1,578,798 1,578,798 Mortgage servicing rights 946 - - 1,490 1,490 Financial liabilities: Deposits $ 1,446,305 $ 1,002,257 $ - $ 420,724 $ 1,422,981 Short term borrowings 467,917 — — 461,352 461,352 Other borrowings 10,000 9,917 9,917 September 30, 2023 (in thousands) Carrying Value Level I Level II Level III Total Fair Financial assets: Investment securities held to maturity $ 52,242 $ - $ 42,090 $ - $ 42,090 Loans receivable, net 1,680,525 - - 1,524,615 1,524,615 Mortgage servicing rights 874 - - 1,470 1,470 Financial liabilities: Deposits $ 1,661,016 $ 1,157,045 $ - $ 499,101 $ 1,656,146 Short-term borrowings 374,652 - - 364,291 364,291

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Summary of Activity in Accumulated Other Comprehensive Income (Loss)	The activity in accumulated other comprehensive income (loss) for the three and six months ended March 31, 2024 and 2023 is as follows (in thousands): Accumulated Other Defined Unrealized Gains Derivatives Total Balance at December 31, 2023 $ 66 $ ( 11,296 ) $ 3,944 $ ( 7,286 ) Other comprehensive (loss) income before - ( 1,052 ) 2,371 1,319 Amounts reclassified from accumulated - - ( 1,871 ) ( 1,871 ) Period change - ( 1,052 ) 500 ( 552 ) Balance at March 31, 2024 $ 66 $ ( 12,348 ) $ 4,444 $ ( 7,838 ) Balance at December 31, 2022 $ ( 1,108 ) $ ( 13,041 ) $ 11,172 $ ( 2,977 ) Other comprehensive (loss) income before - 1,277 ( 374 ) 903 Amounts reclassified from accumulated - - ( 1,810 ) ( 1,810 ) Period change - 1,277 ( 2,184 ) ( 907 ) Balance at March 31, 2023 $ ( 1,108 ) $ ( 11,764 ) $ 8,988 $ ( 3,884 ) Accumulated Other Defined Unrealized Gains Derivatives Total Balance at September 30, 2023 $ 66 $ ( 17,525 ) $ 7,966 $ ( 9,493 ) Other comprehensive income (loss) before — 5,177 205 5,382 Amounts reclassified from accumulated other — — ( 3,727 ) ( 3,727 ) Period change — 5,177 ( 3,522 ) 1,655 Balance at March 31, 2024 $ 66 $ ( 12,348 ) $ 4,444 $ ( 7,838 ) Balance at September 30, 2022 $ ( 1,108 ) $ ( 13,879 ) $ 12,093 $ ( 2,894 ) Other comprehensive income (loss) before reclassifications — 2,115 153 2,268 Amounts reclassified from accumulated other — — ( 3,258 ) ( 3,258 ) Period change — 2,115 ( 3,105 ) ( 990 ) Balance at March 31, 2023 $ ( 1,108 ) $ ( 11,764 ) $ 8,988 $ ( 3,884 )
Summary of Reclassification Out of Accumulated Other Comprehensive Income (Loss)	The following table presents significant amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three and six months ended March 31, 2024 and 2023 (in thousands): Amount Reclassified from Details About Accumulated Other Comprehensive Income (Loss) Components Accumulated Other Comprehensive Income (Loss) for the Three Months Ended March 31, Affected Line Item in the 2024 2023 Derivatives and hedging activities: Interest expense, effective portion 2,368 2,293 Interest expense Related income tax expense ( 497 ) ( 483 ) Income taxes Net effect on accumulated other comprehensive income (loss) 1,871 1,810 Total reclassification for the period $ 1,871 $ 1,810 Amount Reclassified from Accumulated Other Comprehensive Income (Loss) For the Six Months Ended March 31, Affected Line Item in the 2024 2023 Derivative and hedging activities: Interest expense, effective portion 4,718 4,127 Interest expense Related income tax expense ( 991 ) ( 869 ) Income taxes Net effect on accumulated other comprehensive income (loss) 3,727 3,258 Total reclassification for the period $ 3,727 $ 3,258

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value of Derivative Financial Instruments as well as their Classification on Consolidated Balance Sheet	The table below presents the fair value of the Company’s derivative financial instruments as of March 31, 2024 and September 30, 2023 (in thousands). Fair Values of Derivative Instruments Asset Derivatives As of March 31, 2024 As of September 30, 2023 Hedged Item Notional Fair Notional Fair FHLB Advances $ 230,000 $ 5,838 $ 230,000 $ 10,086 Commercial Loans 98,291 7,576 86,265 9,576 Total $ 328,291 $ 13,414 $ 316,265 $ 19,662 Fair Values of Derivative Instruments Liability Derivatives As of March 31, 2024 As of September 30, 2023 Hedged Item Notional Fair Notional Fair FHLB Advances $ 50,000 $ 209 $ - $ - Commercial Loans 114,289 7,580 117,516 9,579 Total $ 164,289 $ 7,789 $ 117,516 $ 9,579
Schedule of Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Loss)	The table below presents the effect of the Company’s cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss) for the three and six months ended March 31, 2024 and 2023 (in thousands). The Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Loss) Derivatives in Hedging Relationships (Gain) Loss Recognized in Location of Gain Gain (Loss) Reclassified Derivatives in Cash Flow Hedging Relationships 2024 2023 2024 2023 Interest Rate Products $ 637 $ ( 2,768 ) Interest expense $ 2,368 $ 2,293 Total $ 637 $ ( 2,768 ) $ 2,368 $ 2,293 Derivatives in Cash Flow Gain (Loss) Recognized in Location of Gain Gain (Loss) Recognized 2024 2023 2024 2023 Interest Rate Products $ ( 4,458 ) $ ( 3,934 ) Interest expense $ 4,718 $ 4,127 Total $ ( 4,458 ) $ ( 3,934 ) $ 4,718 $ 4,127

Earnings Per Share - Compositio

Earnings Per Share - Composition of the Weighted-Average Common Shares (Denominator) Used in the Basic and Diluted Earnings per Share Computation (Detail) - shares	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Weighted-average common shares outstanding	18,133,095	18,133,095	18,133,095	18,133,095
Average treasury stock shares	(8,001,574)	(7,730,573)	(7,931,665)	(7,732,689)
Average unearned ESOP shares	(592,281)	(637,547)	(597,970)	(643,266)
Average unearned non-vested shares	(25,584)	(47,031)	(27,730)	(49,803)
Weighted average common shares and common stock equivalents used to calculate basic earnings per share	9,513,656	9,717,944	9,575,730	9,707,337
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share	142	2,674		3,358
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share	9,513,798	9,720,618	9,575,730	9,710,695

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	0	0

Accounting Pronouncements - Add

Accounting Pronouncements - Additional Information (Details) - USD ($)	Mar. 31, 2024	Sep. 30, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unfunded commitments	$ 52,000
Retained earnings	158,334,000	$ 151,856,000
ASU 2016-13 [Member] | Cumulative Effect of Adoption [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses	2,755,000
Unfunded commitments	2,083,000
Retained earnings, before tax	672,000
Retained earnings	$ 530,000

Accounting Pronouncements - Sum

Accounting Pronouncements - Summary of the Change from the Incurred Loss Model to the Current Expected Credit Loss Model (Details)	Mar. 31, 2024 USD ($)
Liabilities [Abstract]
ACL for unfunded commitments	$ 52,000
Off-balance-sheet, credit loss, assets and liabilities	18,577,000
Real Estate Loans [Member] | Residential [Member]
Assets [Abstract]
ACL on debt securities loans	4,897,000
Real Estate Loans [Member] | Construction [Member]
Assets [Abstract]
ACL on debt securities loans	183,000
Real Estate Loans [Member] | Commercial [Member]
Assets [Abstract]
ACL on debt securities loans	11,983,000
Real Estate Loans [Member] | Commercial Loans [Member]
Assets [Abstract]
ACL on debt securities loans	941,000
Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
ACL on debt securities loans	110,000
Home Equity Loans and Lines of Credit [Member]
Assets [Abstract]
ACL on debt securities loans	346,000
Auto Loans [Member]
Assets [Abstract]
ACL on debt securities loans	2,000
Other [Member]
Assets [Abstract]
ACL on debt securities loans	22,000
Unallocated [Member]
Assets [Abstract]
ACL on debt securities loans	41,000
As Reported
Liabilities [Abstract]
ACL for unfunded commitments	2,135,000
Off-balance-sheet, credit loss, assets and liabilities	17,905,000
As Reported | Real Estate Loans [Member] | Residential [Member]
Assets [Abstract]
ACL on debt securities loans	5,400,000
As Reported | Real Estate Loans [Member] | Construction [Member]
Assets [Abstract]
ACL on debt securities loans	437,000
As Reported | Real Estate Loans [Member] | Commercial [Member]
Assets [Abstract]
ACL on debt securities loans	8,254,000
As Reported | Real Estate Loans [Member] | Commercial Loans [Member]
Assets [Abstract]
ACL on debt securities loans	649,000
As Reported | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
ACL on debt securities loans	239,000
As Reported | Home Equity Loans and Lines of Credit [Member]
Assets [Abstract]
ACL on debt securities loans	769,000
As Reported | Auto Loans [Member]
Assets [Abstract]
ACL on debt securities loans	4,000
As Reported | Other [Member]
Assets [Abstract]
ACL on debt securities loans	18,000
ASU 2016-13 [Member] | Adoption Impact
Assets [Abstract]
ACL on debt securities loans	2,755,000
Liabilities [Abstract]
ACL for unfunded commitments	2,083,000
Off-balance-sheet, credit loss, assets and liabilities	(672,000)
ASU 2016-13 [Member] | Adoption Impact | Real Estate Loans [Member] | Residential [Member]
Assets [Abstract]
ACL on debt securities loans	503,000
ASU 2016-13 [Member] | Adoption Impact | Real Estate Loans [Member] | Construction [Member]
Assets [Abstract]
ACL on debt securities loans	254,000
ASU 2016-13 [Member] | Adoption Impact | Real Estate Loans [Member] | Commercial [Member]
Assets [Abstract]
ACL on debt securities loans	(3,729,000)
ASU 2016-13 [Member] | Adoption Impact | Real Estate Loans [Member] | Commercial Loans [Member]
Assets [Abstract]
ACL on debt securities loans	(292,000)
ASU 2016-13 [Member] | Adoption Impact | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
ACL on debt securities loans	129,000
ASU 2016-13 [Member] | Adoption Impact | Home Equity Loans and Lines of Credit [Member]
Assets [Abstract]
ACL on debt securities loans	423,000
ASU 2016-13 [Member] | Adoption Impact | Auto Loans [Member]
Assets [Abstract]
ACL on debt securities loans	2,000
ASU 2016-13 [Member] | Adoption Impact | Other [Member]
Assets [Abstract]
ACL on debt securities loans	(4,000)
ASU 2016-13 [Member] | Adoption Impact | Unallocated [Member]
Assets [Abstract]
ACL on debt securities loans	$ (41,000)

Investment Securities - Summary

Investment Securities - Summary of Amortized Cost, Gross Unrealized Gains and Losses, Allowance for Credit Losses and Fair Value of Investment Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	$ 0	$ 0
Available for sale, Fair Value	215,321	334,056
Held to maturity, Amortized Cost	0	0
Fannie Mae [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	59,238	55,878
Available for sale, Gross Unrealized Gains	213
Available for sale, Gross Unrealized Losses	(4,287)	(6,418)
Available for sale, Fair Value	55,164	49,460
Held to maturity, Amortized Cost	26,303	27,652
Held to maturity, Gross Unrealized Losses	(4,014)	(5,217)
Held to maturity, Fair Value	22,289	22,435
Freddie Mac [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	54,016	49,833
Available for sale, Gross Unrealized Gains	30	1
Available for sale, Gross Unrealized Losses	(3,501)	(5,552)
Available for sale, Fair Value	50,545	44,282
Held to maturity, Amortized Cost	21,172	22,145
Held to maturity, Gross Unrealized Losses	(3,367)	(4,424)
Held to maturity, Fair Value	17,805	17,721
Governmental National Mortgage Association [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	17,194	6,986
Available for sale, Gross Unrealized Gains	38
Available for sale, Gross Unrealized Losses	(515)	(397)
Available for sale, Fair Value	16,717	6,589
Mortgage-Backed Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	130,448	112,697
Available for sale, Gross Unrealized Gains	281	1
Available for sale, Gross Unrealized Losses	(8,303)	(12,367)
Available for sale, Fair Value	122,426	100,331
Held to maturity, Amortized Cost	47,475	49,797
Held to maturity, Gross Unrealized Losses	(7,381)	(9,641)
Held to maturity, Fair Value	40,094	40,156
Obligations of States and Political Subdivisions [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	9,573	9,794
Available for sale, Gross Unrealized Losses	(499)	(742)
Available for sale, Fair Value	9,074	9,052
U.S. Government Treasury Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost		123,562
Available for sale, Gross Unrealized Gains		19
Available for sale, Gross Unrealized Losses		(1)
Available for sale, Fair Value		123,580
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	6,578	29,089
Available for sale, Gross Unrealized Losses	(68)	(137)
Available for sale, Fair Value	6,510	28,952
Held to maturity, Amortized Cost	2,448	2,445
Held to maturity, Gross Unrealized Losses	(403)	(511)
Held to maturity, Fair Value	2,045	1,934
Corporate Obligations [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	75,950	73,962
Available for sale, Gross Unrealized Gains	33
Available for sale, Gross Unrealized Losses	(6,535)	(8,241)
Available for sale, Fair Value	69,448	65,721
Other Debt Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	8,406	7,139
Available for sale, Gross Unrealized Gains	25
Available for sale, Gross Unrealized Losses	(568)	(719)
Available for sale, Fair Value	7,863	6,420
Total Debt Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale, Amortized Cost	230,955	356,243
Available for sale, Gross Unrealized Gains	339	20
Available for sale, Gross Unrealized Losses	(15,973)	(22,207)
Available for sale, Fair Value	215,321	334,056
Held to maturity, Amortized Cost	49,923	52,242
Held to maturity, Gross Unrealized Losses	(7,784)	(10,152)
Held to maturity, Fair Value	$ 42,139	$ 42,090

Investment Securities - Schedul

Investment Securities - Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in one year or less, Amortized Cost	$ 5,030
Due after one year through five years, Amortized Cost	37,825
Due after five years through ten years, Amortized Cost	69,246
Due after ten years, Amortized Cost	118,854
Available for sale, Amortized Cost Before Allowance for Credit Loss	230,955
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in one year or less, Fair Value	4,987
Due after one year through five years, Fair Value	36,192
Due after five years through ten years, Fair Value	62,594
Due after ten years, Fair Value	111,548
Total, Fair Value	215,321	$ 334,056
Held to maturity Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due after five years through ten years, Amortized Cost	6,606
Due after ten years, Amortized Cost	43,317
Total, Amortized Cost	49,923
Held to maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due after five years through ten years, Fair Value	5,782
Due after ten years, Fair Value	36,357
Total, Fair Value	$ 42,139

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Mar. 31, 2024 USD ($) Security	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($) Security	Mar. 31, 2023 USD ($)	Sep. 30, 2023 Security
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Realized gross gains	$ 0	$ 0	$ 0	$ 0
Realized gross losses	0	$ 0	0	$ 0
Fair value of held-to-maturity securities in unrealized loss position	42,100,000		42,100,000
Unrealized losses of held-to-maturity securities	7,800,000		7,800,000
Accrued interest receivable on held-to-maturity debt securities	67,000		67,000
Fair value of available-for-sale securities in an unrealized loss position	194,200,000		194,200,000
Unrealized losses of available-for-sale securities	16,000,000		16,000,000
Accrued interest receivable on available-for-sale debt securities	$ 1,200,000		$ 1,200,000
Number of holding of available-for-sale securities | Security	275		275		274

Investment Securities - Sched_2

Investment Securities - Schedule of Gross Unrealized Losses and Fair Value (Detail) $ in Thousands	Mar. 31, 2024 USD ($) Security	Sep. 30, 2023 USD ($) Security
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	275	274
Fair Value, Less than Twelve Months, Debt	$ 25,562	$ 67,381
Gross Unrealized Losses, Less than Twelve Months, Debt	(476)	(686)
Fair Value, Twelve Months or Greater, Debt	210,706	208,884
Gross Unrealized Losses, Twelve Months or Greater, Debt	(23,281)	(31,673)
Fair Value Total, Debt	236,268	276,265
Gross Unrealized Losses Total, Debt	$ (23,757)	$ (32,359)
Fannie Mae [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	77	77
Fair Value, Less than Twelve Months, Debt	$ 5,032	$ 5,675
Gross Unrealized Losses, Less than Twelve Months, Debt	(24)	(196)
Fair Value, Twelve Months or Greater, Debt	65,743	66,220
Gross Unrealized Losses, Twelve Months or Greater, Debt	(8,277)	(11,439)
Fair Value Total, Debt	70,775	71,895
Gross Unrealized Losses Total, Debt	$ (8,301)	$ (11,635)
Freddie Mac [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	66	63
Fair Value, Less than Twelve Months, Debt	$ 7,090	$ 3,828
Gross Unrealized Losses, Less than Twelve Months, Debt	(77)	(159)
Fair Value, Twelve Months or Greater, Debt	58,233	57,168
Gross Unrealized Losses, Twelve Months or Greater, Debt	(6,791)	(9,817)
Fair Value Total, Debt	65,323	60,996
Gross Unrealized Losses Total, Debt	$ (6,868)	$ (9,976)
Governmental National Mortgage Association Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	18	14
Fair Value, Less than Twelve Months, Debt	$ 8,370	$ 2,151
Gross Unrealized Losses, Less than Twelve Months, Debt	(135)	(51)
Fair Value, Twelve Months or Greater, Debt	4,152	4,438
Gross Unrealized Losses, Twelve Months or Greater, Debt	(380)	(346)
Fair Value Total, Debt	12,522	6,589
Gross Unrealized Losses Total, Debt	$ (515)	$ (397)
U.S. Government Treasury Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security		1
Fair Value, Less than Twelve Months, Debt		$ 24,705
Gross Unrealized Losses, Less than Twelve Months, Debt		(1)
Fair Value Total, Debt		24,705
Gross Unrealized Losses Total, Debt		$ (1)
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	4	4
Fair Value, Less than Twelve Months, Debt	$ 2,074	$ 24,582
Gross Unrealized Losses, Less than Twelve Months, Debt	(4)	(6)
Fair Value, Twelve Months or Greater, Debt	6,481	6,304
Gross Unrealized Losses, Twelve Months or Greater, Debt	(467)	(642)
Fair Value Total, Debt	8,555	30,886
Gross Unrealized Losses Total, Debt	$ (471)	$ (648)
Obligations of States and Political Subdivisions [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	10	11
Fair Value, Twelve Months or Greater, Debt	$ 9,074	$ 9,052
Gross Unrealized Losses, Twelve Months or Greater, Debt	(499)	(742)
Fair Value Total, Debt	9,074	9,052
Gross Unrealized Losses Total, Debt	$ (499)	$ (742)
Corporate Obligations [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	83	87
Fair Value, Less than Twelve Months, Debt	$ 2,621	$ 6,045
Gross Unrealized Losses, Less than Twelve Months, Debt	(236)	(273)
Fair Value, Twelve Months or Greater, Debt	61,484	59,677
Gross Unrealized Losses, Twelve Months or Greater, Debt	(6,299)	(7,968)
Fair Value Total, Debt	64,105	65,722
Gross Unrealized Losses Total, Debt	$ (6,535)	$ (8,241)
Other Debt Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Number of Securities, Debt | Security	17	17
Fair Value, Less than Twelve Months, Debt	$ 375	$ 395
Fair Value, Twelve Months or Greater, Debt	5,539	6,025
Gross Unrealized Losses, Twelve Months or Greater, Debt	(568)	(719)
Fair Value Total, Debt	5,914	6,420
Gross Unrealized Losses Total, Debt	$ (568)	$ (719)

Loans Receivable, Net and All_3

Loans Receivable, Net and Allowance for Credit Losses on Loans - Summary of Loans Receivable (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022
Real estate loans:
Total Loans	$ 1,723,637		$ 1,699,050
Less allowance for credit losses	15,416	$ 15,430	18,525	$ 18,315	$ 18,741	$ 18,528
Net loans	1,708,221		1,680,525
Commercial Loans [Member]
Real estate loans:
Total Loans	41,033		48,143
Less allowance for credit losses	1,043	690	941	1,185	1,048	698
Real Estate Loans [Member] | Residential [Member]
Real estate loans:
Total Loans	710,272		713,326
Less allowance for credit losses	4,953	4,889	4,897	4,870	5,286	5,122
Real Estate Loans [Member] | Construction [Member]
Real estate loans:
Total Loans	15,949		16,768
Less allowance for credit losses	333	431	183	328	328	319
Real Estate Loans [Member] | Commercial [Member]
Real estate loans:
Total Loans	856,096		821,958
Less allowance for credit losses	8,031	8,377	11,983	11,016	11,194	10,754
Obligations of States and Political Subdivisions [Member]
Real estate loans:
Total Loans	49,007		48,118
Less allowance for credit losses	278	276	110	243	275	283
Home Equity Loans and Lines of Credit [Member]
Real estate loans:
Total Loans	49,594		48,212
Less allowance for credit losses	760	746	346	336	372	361
Auto Loans [Member]
Real estate loans:
Total Loans	145		523
Less allowance for credit losses	2	3	2	8	14	22
Other [Member]
Real estate loans:
Total Loans	1,541		2,002
Less allowance for credit losses	$ 16	$ 18	$ 22	$ 22	$ 22	$ 22

Loans Receivable, Net and All_4

Loans Receivable, Net and Allowance for Credit Losses on Loans - Schedule of Loans Evaluated for Impairment (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 1,723,637	$ 1,699,050
Individually Evaluated for Impairment	8,671	9,735
Collectively Evaluated for Impairment	1,714,966	1,689,315
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	41,033	48,143
Individually Evaluated for Impairment	926	648
Collectively Evaluated for Impairment	40,107	47,495
Real Estate Loans [Member] | Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	710,272	713,326
Individually Evaluated for Impairment	1,318	1,393
Collectively Evaluated for Impairment	708,954	711,933
Real Estate Loans [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	15,949	16,768
Collectively Evaluated for Impairment	15,949	16,768
Real Estate Loans [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	856,096	821,958
Individually Evaluated for Impairment	6,397	7,664
Collectively Evaluated for Impairment	849,699	814,294
Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	49,007	48,118
Collectively Evaluated for Impairment	49,007	48,118
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	49,594	48,212
Individually Evaluated for Impairment	23	27
Collectively Evaluated for Impairment	49,571	48,185
Auto Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	145	523
Individually Evaluated for Impairment	7
Collectively Evaluated for Impairment	138	523
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,541	2,002
Individually Evaluated for Impairment		3
Collectively Evaluated for Impairment	$ 1,541	$ 1,999

Loans Receivable, Net and All_5

Loans Receivable, Net and Allowance for Credit Losses on Loans - Schedule of Investment and Unpaid Principal Balances for Impaired Loans (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Impaired [Line Items]
Recorded Investment				$ 9,735,000
Unpaid Principal Balance				11,889,000
Associated Allowance			$ 297,000	42,000
Average Recorded Investment	$ 12,924,000	$ 13,676,000
Interest Income Recognized	2,000	3,000
With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				8,212,000
Unpaid Principal Balance				10,224,000
Average Recorded Investment	8,877,000	10,701,000
Interest Income Recognized	2,000	3,000
With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				1,523,000
Unpaid Principal Balance				1,665,000
Associated Allowance				42,000
Average Recorded Investment	4,047,000	2,975,000
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				27,000
Unpaid Principal Balance				62,000
Average Recorded Investment	33,000	34,000
Home Equity Loans and Lines of Credit [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				27,000
Unpaid Principal Balance				62,000
Average Recorded Investment	33,000	34,000
Auto Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,000	5,000
Auto Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,000	5,000
Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				3,000
Unpaid Principal Balance				17,000
Average Recorded Investment	5,000	5,000
Other [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				3,000
Unpaid Principal Balance				17,000
Average Recorded Investment	5,000	5,000
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				1,393,000
Unpaid Principal Balance				2,194,000
Associated Allowance				7,000
Average Recorded Investment	1,258,000	1,288,000
Interest Income Recognized	1,000	2,000
Residential [Member] | Real Estate Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				1,294,000
Unpaid Principal Balance				2,091,000
Average Recorded Investment	1,156,000	1,186,000
Interest Income Recognized	1,000	2,000
Residential [Member] | Real Estate Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				99,000
Unpaid Principal Balance				103,000
Associated Allowance				7,000
Average Recorded Investment	102,000	102,000
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				7,664,000
Unpaid Principal Balance				8,656,000
Associated Allowance				35,000
Average Recorded Investment	10,703,000	11,418,000
Interest Income Recognized	1,000	1,000
Commercial [Member] | Real Estate Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				6,240,000
Unpaid Principal Balance				7,094,000
Average Recorded Investment	7,310,000	8,937,000
Interest Income Recognized	1,000	1,000
Commercial [Member] | Real Estate Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				1,424,000
Unpaid Principal Balance				1,562,000
Associated Allowance				35,000
Average Recorded Investment	3,393,000	2,481,000
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				648,000
Unpaid Principal Balance				960,000
Average Recorded Investment	921,000	926,000
Commercial Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment				648,000
Unpaid Principal Balance				$ 960,000
Average Recorded Investment	369,000	534,000
Commercial Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 552,000	$ 392,000

Loans Receivable, Net and All_6

Loans Receivable, Net and Allowance for Credit Losses on Loans - Additional Information (Detail)	3 Months Ended	6 Months Ended
	Mar. 31, 2023 Contract	Mar. 31, 2024 USD ($)	Mar. 31, 2023 Contract
Receivables [Abstract]
Days past due over which loans are considered as substandard		90 days
Borrower rating scale		1 to 14
Minimum internal review amount		$ 2,000,000
Minimum external review amount		1,000,000
Loans greater than 90 days past due and still accruing interest		0
Minimum external review criticized relationships amount		$ 500,000
Number of Contracts | Contract	0
Number of troubled debt restructurings, loan modified, defaulted within one year of modification | Contract	0		0

Loans Receivable, Net and All_7

Loans Receivable, Net and Allowance for Credit Losses on Loans - Schedule of Non-homogenous Pools by Internal Risk Rating Systems (Detail) $ in Thousands	6 Months Ended
	Mar. 31, 2024 USD ($)
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	$ 43,268
Term Loans Amortized on Cost Basis by Origination Year, 2023	101,660
Term Loans Amortized on Cost Basis by Origination Year, 2022	146,391
Term Loans Amortized on Cost Basis by Origination Year, 2021	139,984
Term Loans Amortized on Cost Basis by Origination Year, 2020	101,471
Term Loans Amortized on Cost Basis by Origination Year, Prior	210,669
Revolving Loans Amortized Cost Basis	202,693
Total	946,136
Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	19,200
Term Loans Amortized on Cost Basis by Origination Year, 2023	119,450
Term Loans Amortized on Cost Basis by Origination Year, 2022	162,011
Term Loans Amortized on Cost Basis by Origination Year, 2021	139,268
Term Loans Amortized on Cost Basis by Origination Year, 2020	106,833
Term Loans Amortized on Cost Basis by Origination Year, Prior	209,267
Revolving Loans Amortized Cost Basis	20,384
Revolving Loans Converted to Term	1,087
Total	777,500
Loans Past Due Over 90 Days [Member] | Home Equity Loans and Lines of Credit [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	2,693
Term Loans Amortized on Cost Basis by Origination Year, 2023	11,378
Term Loans Amortized on Cost Basis by Origination Year, 2022	7,612
Term Loans Amortized on Cost Basis by Origination Year, 2021	1,984
Term Loans Amortized on Cost Basis by Origination Year, 2020	1,599
Term Loans Amortized on Cost Basis by Origination Year, Prior	3,256
Revolving Loans Amortized Cost Basis	19,984
Revolving Loans Converted to Term	1,087
Total	49,593
Loans Past Due Over 90 Days [Member] | Auto [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, Prior	145
Total	145
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Current period gross charge-offs, Prior	6
Total	6
Loans Past Due Over 90 Days [Member] | Other [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	219
Term Loans Amortized on Cost Basis by Origination Year, 2023	483
Term Loans Amortized on Cost Basis by Origination Year, 2022	217
Term Loans Amortized on Cost Basis by Origination Year, 2021	126
Term Loans Amortized on Cost Basis by Origination Year, 2020	44
Term Loans Amortized on Cost Basis by Origination Year, Prior	52
Revolving Loans Amortized Cost Basis	400
Total	1,541
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Current period gross charge-offs, Prior	10
Total	10
Performing [Member] | Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	19,200
Term Loans Amortized on Cost Basis by Origination Year, 2023	119,248
Term Loans Amortized on Cost Basis by Origination Year, 2022	162,011
Term Loans Amortized on Cost Basis by Origination Year, 2021	139,268
Term Loans Amortized on Cost Basis by Origination Year, 2020	106,833
Term Loans Amortized on Cost Basis by Origination Year, Prior	206,946
Revolving Loans Amortized Cost Basis	20,384
Revolving Loans Converted to Term	1,087
Total	774,977
Performing [Member] | Loans Past Due Over 90 Days [Member] | Home Equity Loans and Lines of Credit [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	2,693
Term Loans Amortized on Cost Basis by Origination Year, 2023	11,378
Term Loans Amortized on Cost Basis by Origination Year, 2022	7,612
Term Loans Amortized on Cost Basis by Origination Year, 2021	1,984
Term Loans Amortized on Cost Basis by Origination Year, 2020	1,599
Term Loans Amortized on Cost Basis by Origination Year, Prior	3,213
Revolving Loans Amortized Cost Basis	19,984
Revolving Loans Converted to Term	1,087
Total	49,550
Performing [Member] | Loans Past Due Over 90 Days [Member] | Auto [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, Prior	138
Total	138
Performing [Member] | Loans Past Due Over 90 Days [Member] | Other [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	219
Term Loans Amortized on Cost Basis by Origination Year, 2023	483
Term Loans Amortized on Cost Basis by Origination Year, 2022	217
Term Loans Amortized on Cost Basis by Origination Year, 2021	126
Term Loans Amortized on Cost Basis by Origination Year, 2020	44
Term Loans Amortized on Cost Basis by Origination Year, Prior	25
Revolving Loans Amortized Cost Basis	400
Total	1,514
Non-performing [Member] | Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2023	202
Term Loans Amortized on Cost Basis by Origination Year, Prior	2,321
Total	2,523
Non-performing [Member] | Loans Past Due Over 90 Days [Member] | Home Equity Loans and Lines of Credit [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, Prior	43
Total	43
Non-performing [Member] | Loans Past Due Over 90 Days [Member] | Auto [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, Prior	7
Total	7
Non-performing [Member] | Loans Past Due Over 90 Days [Member] | Other [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, Prior	27
Total	27
Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	43,268
Term Loans Amortized on Cost Basis by Origination Year, 2023	101,660
Term Loans Amortized on Cost Basis by Origination Year, 2022	146,391
Term Loans Amortized on Cost Basis by Origination Year, 2021	138,698
Term Loans Amortized on Cost Basis by Origination Year, 2020	98,896
Term Loans Amortized on Cost Basis by Origination Year, Prior	199,321
Revolving Loans Amortized Cost Basis	202,693
Total	930,927
Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2020	2,283
Term Loans Amortized on Cost Basis by Origination Year, Prior	64
Total	2,347
Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2021	1,286
Term Loans Amortized on Cost Basis by Origination Year, 2020	292
Term Loans Amortized on Cost Basis by Origination Year, Prior	11,284
Total	12,862
Commercial Real Estate [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	37,840
Term Loans Amortized on Cost Basis by Origination Year, 2023	84,923
Term Loans Amortized on Cost Basis by Origination Year, 2022	132,921
Term Loans Amortized on Cost Basis by Origination Year, 2021	129,410
Term Loans Amortized on Cost Basis by Origination Year, 2020	79,252
Term Loans Amortized on Cost Basis by Origination Year, Prior	199,067
Revolving Loans Amortized Cost Basis	192,683
Total	856,096
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Current period gross charge-offs, 2021	15
Total	15
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	37,840
Term Loans Amortized on Cost Basis by Origination Year, 2023	84,923
Term Loans Amortized on Cost Basis by Origination Year, 2022	132,921
Term Loans Amortized on Cost Basis by Origination Year, 2021	128,636
Term Loans Amortized on Cost Basis by Origination Year, 2020	76,969
Term Loans Amortized on Cost Basis by Origination Year, Prior	189,218
Revolving Loans Amortized Cost Basis	192,683
Total	843,190
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2020	2,283
Term Loans Amortized on Cost Basis by Origination Year, Prior	64
Total	2,347
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2021	774
Term Loans Amortized on Cost Basis by Origination Year, Prior	9,785
Total	10,559
Commercial [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	3,069
Term Loans Amortized on Cost Basis by Origination Year, 2023	12,108
Term Loans Amortized on Cost Basis by Origination Year, 2022	4,590
Term Loans Amortized on Cost Basis by Origination Year, 2021	2,766
Term Loans Amortized on Cost Basis by Origination Year, 2020	5,288
Term Loans Amortized on Cost Basis by Origination Year, Prior	11,602
Revolving Loans Amortized Cost Basis	1,610
Total	41,033
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Current period gross charge-offs, 2021	23
Total	23
Commercial [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	3,069
Term Loans Amortized on Cost Basis by Origination Year, 2023	12,108
Term Loans Amortized on Cost Basis by Origination Year, 2022	4,590
Term Loans Amortized on Cost Basis by Origination Year, 2021	2,254
Term Loans Amortized on Cost Basis by Origination Year, 2020	4,996
Term Loans Amortized on Cost Basis by Origination Year, Prior	10,103
Revolving Loans Amortized Cost Basis	1,610
Total	38,730
Commercial [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2021	512
Term Loans Amortized on Cost Basis by Origination Year, 2020	292
Term Loans Amortized on Cost Basis by Origination Year, Prior	1,499
Total	2,303
Obligations of States and Political Subdivisions [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	2,359
Term Loans Amortized on Cost Basis by Origination Year, 2023	4,629
Term Loans Amortized on Cost Basis by Origination Year, 2022	8,880
Term Loans Amortized on Cost Basis by Origination Year, 2021	7,808
Term Loans Amortized on Cost Basis by Origination Year, 2020	16,931
Revolving Loans Amortized Cost Basis	8,400
Total	49,007
Obligations of States and Political Subdivisions [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	2,359
Term Loans Amortized on Cost Basis by Origination Year, 2023	4,629
Term Loans Amortized on Cost Basis by Origination Year, 2022	8,880
Term Loans Amortized on Cost Basis by Origination Year, 2021	7,808
Term Loans Amortized on Cost Basis by Origination Year, 2020	16,931
Revolving Loans Amortized Cost Basis	8,400
Total	49,007
Residential Real Estate [Member] | Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	13,673
Term Loans Amortized on Cost Basis by Origination Year, 2023	96,463
Term Loans Amortized on Cost Basis by Origination Year, 2022	151,974
Term Loans Amortized on Cost Basis by Origination Year, 2021	137,158
Term Loans Amortized on Cost Basis by Origination Year, 2020	105,190
Term Loans Amortized on Cost Basis by Origination Year, Prior	205,814
Total	710,272
Residential Real Estate [Member] | Performing [Member] | Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	13,673
Term Loans Amortized on Cost Basis by Origination Year, 2023	96,261
Term Loans Amortized on Cost Basis by Origination Year, 2022	151,974
Term Loans Amortized on Cost Basis by Origination Year, 2021	137,158
Term Loans Amortized on Cost Basis by Origination Year, 2020	105,190
Term Loans Amortized on Cost Basis by Origination Year, Prior	203,570
Total	707,826
Residential Real Estate [Member] | Non-performing [Member] | Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2023	202
Term Loans Amortized on Cost Basis by Origination Year, Prior	2,244
Total	2,446
Construction [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	2,615
Term Loans Amortized on Cost Basis by Origination Year, 2023	11,126
Term Loans Amortized on Cost Basis by Origination Year, 2022	2,208
Total	15,949
Construction [Member] | Performing [Member] | Loans Past Due Over 90 Days [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Term Loans Amortized on Cost Basis by Origination Year, 2024	2,615
Term Loans Amortized on Cost Basis by Origination Year, 2023	11,126
Term Loans Amortized on Cost Basis by Origination Year, 2022	2,208
Total	$ 15,949

Loans Receivable, Net and All_8

Loans Receivable, Net and Allowance for Credit Losses on Loans - Classes of Loan Portfolio, Internal Risk Rating System (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	$ 1,708,221	$ 1,680,525
Commercial And Municipal Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		918,219
Commercial And Municipal Portfolio Segment | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		821,958
Commercial And Municipal Portfolio Segment | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		48,143
Commercial And Municipal Portfolio Segment | Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		48,118
Commercial And Municipal Portfolio Segment | Pass [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		902,306
Commercial And Municipal Portfolio Segment | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		807,736
Commercial And Municipal Portfolio Segment | Pass [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		46,452
Commercial And Municipal Portfolio Segment | Pass [Member] | Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		48,118
Commercial And Municipal Portfolio Segment | Special Mention [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		3,200
Commercial And Municipal Portfolio Segment | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		3,200
Commercial And Municipal Portfolio Segment | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		12,713
Commercial And Municipal Portfolio Segment | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		11,022
Commercial And Municipal Portfolio Segment | Substandard [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		$ 1,691

Loans Receivable, Net and All_9

Loans Receivable, Net and Allowance for Credit Losses on Loans - Schedule of Performing or Non-Performing Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Recorded Investment [Line Items]
Total	$ 1,708,221	$ 1,680,525
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		780,831
Home Equity Loans and Lines of Credit [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		48,212
Auto Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		523
Other [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		2,002
Performing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		778,185
Performing [Member] | Home Equity Loans and Lines of Credit [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		48,165
Performing [Member] | Auto Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		523
Performing [Member] | Other [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		1,972
Non-performing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		2,646
Non-performing [Member] | Home Equity Loans and Lines of Credit [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		47
Non-performing [Member] | Other [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		30
Residential [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		713,326
Residential [Member] | Performing [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		710,757
Residential [Member] | Non-performing [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		2,569
Construction [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		16,768
Construction [Member] | Performing [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		$ 16,768

Loans Receivable, Net and Al_10

Loans Receivable, Net and Allowance for Credit Losses on Loans - Classes of Loan Portfolio Summarized by Aging Categories (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	$ 1,716,507	$ 1,694,557
31-60 Days Past Due, Accruing Loans	2,283	1,079
61-89 Days Past Due, Accruing Loans	1,060	233
90+ Days Past Due	3,787	3,181
Total Past Due, Accruing Loans	7,130	4,493
Total Accruing Loans	1,723,637	1,699,050
Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	49,007	48,118
Total Accruing Loans	49,007	48,118
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	49,573	48,191
90+ Days Past Due	21	21
Total Past Due, Accruing Loans	21	21
Total Accruing Loans	49,594	48,212
Auto Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	136	485
31-60 Days Past Due, Accruing Loans	2	37
61-89 Days Past Due, Accruing Loans	7	1
Total Past Due, Accruing Loans	9	38
Total Accruing Loans	145	523
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	1,516	1,959
31-60 Days Past Due, Accruing Loans		10
61-89 Days Past Due, Accruing Loans	25	33
Total Past Due, Accruing Loans	25	43
Total Accruing Loans	1,541	2,002
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	706,000	710,290
31-60 Days Past Due, Accruing Loans	2,120	792
61-89 Days Past Due, Accruing Loans	277	199
90+ Days Past Due	1,875	2,045
Total Past Due, Accruing Loans	4,272	3,036
Total Accruing Loans	710,272	713,326
Construction [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	15,949	16,768
Total Accruing Loans	15,949	16,768
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	854,098	820,853
31-60 Days Past Due, Accruing Loans	161	240
61-89 Days Past Due, Accruing Loans	159
90+ Days Past Due	1,678	865
Total Past Due, Accruing Loans	1,998	1,105
Total Accruing Loans	856,096	821,958
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current, Accruing Loans	40,228	47,893
61-89 Days Past Due, Accruing Loans	592
90+ Days Past Due	213	250
Total Past Due, Accruing Loans	805	250
Total Accruing Loans	$ 41,033	$ 48,143

Loans Receivable, Net and Al_11

Loans Receivable, Net and Allowance for Credit Losses on Loans - Amortized Cost Basis of Loans on Nonaccrual Status and Loans Past Due Over 90 Days and Still Accruing (Detail) - USD ($)	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	$ 10,372
Nonaccrual with ACL	388
Non-Accrual Loans	10,760	$ 11,061
Total nonperforming	10,760
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	43
Non-Accrual Loans	43	47
Total nonperforming	43
Auto [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	7
Non-Accrual Loans	7
Total nonperforming	7
Other [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	27
Non-Accrual Loans	27	30
Total nonperforming	27
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	2,350
Nonaccrual with ACL	96
Non-Accrual Loans	2,446	2,569
Total nonperforming	2,446
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	7,307
Non-Accrual Loans	7,307	7,763
Total nonperforming	7,307
Commercial Loans [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no ACL	638
Nonaccrual with ACL	292
Non-Accrual Loans	930	$ 652
Total nonperforming	$ 930

Loans Receivable, Net and Al_12

Loans Receivable, Net and Allowance for Credit Losses on Loans - Summary of Changes in Primary Segments of Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	$ 15,430	$ 18,741	$ 18,525	$ 18,528
Charge-offs	(43)	(599)	(53)	(620)
Recoveries	40	23	50	107
Provision	(11)	150	(351)	300
Balance, End of period	15,416	18,315	15,416	18,315
Individually evaluated for Credit Loss	297		297		$ 42
Collectively evaluated for Credit Loss	15,119		15,119		18,483
Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			(2,755)
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	690	1,048	941	698
Charge-offs	(22)		(22)
Provision	375	137	416	487
Balance, End of period	1,043	1,185	1,043	1,185
Individually evaluated for Credit Loss	292		292
Collectively evaluated for Credit Loss	751		751		941
Commercial Loans [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			(292)
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period		202	41	947
Provision		105		(640)
Balance, End of period	0	307	0	307
Collectively evaluated for Credit Loss					41
Unallocated [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			(41)
Real Estate Loans [Member] | Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	4,889	5,286	4,897	5,122
Recoveries	1		1	2
Provision	63	(416)	(448)	(254)
Balance, End of period	4,953	4,870	4,953	4,870
Individually evaluated for Credit Loss	5		5		7
Collectively evaluated for Credit Loss	4,948		4,948		4,890
Real Estate Loans [Member] | Residential [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			503
Real Estate Loans [Member] | Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	431	328	183	319
Provision	(98)		(104)	9
Balance, End of period	333	328	333	328
Collectively evaluated for Credit Loss	333		333		183
Real Estate Loans [Member] | Construction [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			254
Real Estate Loans [Member] | Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	8,377	11,194	11,983	10,754
Charge-offs	(15)	(593)	(15)	(593)
Recoveries	37		37	1
Provision	(368)	415	(245)	854
Balance, End of period	8,031	11,016	8,031	11,016
Individually evaluated for Credit Loss					35
Collectively evaluated for Credit Loss	8,031		8,031		11,948
Real Estate Loans [Member] | Commercial [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			(3,729)
Obligations of States and Political Subdivisions [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	276	275	110	283
Provision	2	(32)	39	(40)
Balance, End of period	278	243	278	243
Collectively evaluated for Credit Loss	278		278		110
Obligations of States and Political Subdivisions [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			129
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	746	372	346	361
Recoveries	1	1	4	52
Provision	13	(37)	(13)	(77)
Balance, End of period	760	336	760	336
Collectively evaluated for Credit Loss	760		760		346
Home Equity Loans and Lines of Credit [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			423
Auto Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	3	14	2	22
Charge-offs	(6)	(6)	(6)	(27)
Recoveries	1	22	8	52
Provision	4	(22)	(4)	(39)
Balance, End of period	2	8	2	8
Collectively evaluated for Credit Loss	2		2		2
Auto Loans [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			2
Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period	18	22	22	22
Charge-offs			(10)
Provision	(2)		8	0
Balance, End of period	16	$ 22	16	$ 22
Collectively evaluated for Credit Loss	$ 16		16		$ 22
Other [Member] | Impact of adopting ASC 326 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period			$ (4)

Loans Receivable, Net and Al_13

Loans Receivable, Net and Allowance for Credit Losses on Loans - Schedule of Financing Receivable Collateral Dependant Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	$ 1,708,221	$ 1,680,525
Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	7,738
Business Assets [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	926
Other [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	7
Other [Member] | Other [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	0
Home Equity Loans and Lines of Credit [Member] | Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	23
Auto Loans [Member] | Other [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	7
Residential [Member] | Real Estate Loan [Member] | Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	1,318
Commercial [Member] | Real Estate Loan [Member] | Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	6,397
Commercial [Member] | Business Assets [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan, total	$ 926

Loans Receivable, Net and Al_14

Loans Receivable, Net and Allowance for Credit Losses on Loans - Summary of Loan Modifications Made to Borrowers Experiencing Financial Difficulty (Detail) - Real Estate Loans [Member] - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Financing Receivable, Modified [Line Items]
Amortized Cost Basis	$ 71
Residential [Member]
Financing Receivable, Modified [Line Items]
Amortized Cost Basis	$ 71	$ 54
% of Total Class of Financing Receivable	0.01%
Reduced weighted-average contractual interest rate	5%		7.25%
Extended term	360 months

Loans Receivable, Net and Al_15

Loans Receivable, Net and Allowance for Credit Losses on Loans - Summary of Performance of Loans Modification (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Financing Receivable, Modified [Line Items]
Total Past Due	$ 71
Current [Member]
Financing Receivable, Modified [Line Items]
Total Past Due	71
Real Estate Loans [Member] | Residential [Member]
Financing Receivable, Modified [Line Items]
Total Past Due	71
Real Estate Loans [Member] | Residential [Member] | Current [Member]
Financing Receivable, Modified [Line Items]
Total Past Due	$ 71

Loans Receivable, Net and Al_16

Loans Receivable, Net and Allowance for Credit Losses on Loans - Summary of Troubled Debt Restructurings Granted (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2023 Contract	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	0
Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		$ 71
Real Estate Loans [Member] | Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract			1
Pre-Modification Outstanding Recorded Investment			$ 51
Post-Modification Outstanding Recorded Investment		$ 71	$ 54
Troubled Debt Restructurings [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract			1
Pre-Modification Outstanding Recorded Investment			$ 51
Post-Modification Outstanding Recorded Investment			$ 54

Deposits - Schedule of Deposits

Deposits - Schedule of Deposits by Major Classifications (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Deposits Liabilities Disclosures [Abstract]
Non-interest bearing demand accounts	$ 266,367	$ 280,473
Interest bearing demand accounts	276,534	346,458
Money market accounts	302,534	366,866
Savings and club accounts	156,822	163,248
Certificates of deposit	444,048	503,971
Total	$ 1,446,305	$ 1,661,016

Net Periodic Benefit Cost-Def_3

Net Periodic Benefit Cost-Defined Benefit Plan - Summary of the Components of Net Periodic Benefit Cost (Income) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Compensation Related Costs [Abstract]
Interest Cost	$ 173	$ 164	$ 344	$ 328
Expected return on plan assets	(262)	(242)	(523)	(484)
Net periodic benefit income	$ (89)	$ (78)	$ (179)	$ (156)

Equity Incentive Plan - Additio

Equity Incentive Plan - Additional Information (Detail) - USD ($)		3 Months Ended		6 Months Ended
	Mar. 02, 2016	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Compensation Related Costs Disclosure [Line Items]
Share-based compensation expense				$ 385,000	$ 386,000
2007 Equity Incentive Plan [Member]
Compensation Related Costs Disclosure [Line Items]
Common stock issuance, Grant	2,377,326
Further number of shares, grants	0
2016 Plan [Member]
Compensation Related Costs Disclosure [Line Items]
Common stock issuance, Grant		250,000		250,000
2024 Plan [Member]
Compensation Related Costs Disclosure [Line Items]
Common stock issuance, Grant		200,000		200,000
Employee Stock Option
Compensation Related Costs Disclosure [Line Items]
Number of available shares	1,698,090
Restricted Stock [Member]
Compensation Related Costs Disclosure [Line Items]
Number of available shares	679,236
Share-based compensation expense		$ 92,000	$ 91,000	$ 385,000	$ 386,000
Expected future expense				$ 739,000
Remaining vesting periods				3 years 6 months
Restricted Stock [Member] | Minimum [Member]
Compensation Related Costs Disclosure [Line Items]
Restricted shares vesting period				6 months
Restricted Stock [Member] | Maximum [Member]
Compensation Related Costs Disclosure [Line Items]
Restricted shares vesting period				42 months

Equity Incentive Plan - Schedul

Equity Incentive Plan - Schedule of Restricted Stock Option Activity (Detail) - Restricted Stock [Member]	6 Months Ended
	Mar. 31, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Restricted Stock, Nonvested at September 30, 2023 | shares	32,512
Number of Restricted Stock, Granted | shares	40,586
Number of Restricted Stock, Vested | shares	(14,268)
Number of Restricted Stock, Nonvested at March 31, 2024 | shares	58,830
Weighted-average Grant Date Fair Value, Nonvested at September 30, 2023 | $ / shares	$ 17.03
Weighted-average Grant Date Fair Value, Granted | $ / shares	14.85
Weighted-average Grant Date Fair Value, Vested | $ / shares	14.57
Weighted-average Grant Date Fair Value, Nonvested at March 31, 2024 | $ / shares	$ 16.12

Fair Value - Schedule of Fair V

Fair Value - Schedule of Fair Value For Assets and Liabilities Required to be Measured and Reported at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Assets
Total debt securities	$ 215,321	$ 334,056
Fair Value, Measurements, Recurring [Member]
Assets
Total debt securities	215,321	334,056
Equity securities- financial services	27	32
Derivatives and hedging activities	13,414	19,662
Liabilities
Derivatives and hedging activities	7,789	9,579
Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member]
Assets
Total debt securities	122,426	100,331
Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Assets
Total debt securities	9,074	9,052
Fair Value, Measurements, Recurring [Member] | U.S. Government Agency Securities [Member]
Assets
Total debt securities	6,510	28,952
Fair Value, Measurements, Recurring [Member] | U.S. Government Treasury Securities [Member]
Assets
Total debt securities		123,580
Fair Value, Measurements, Recurring [Member] | Corporate Obligations [Member]
Assets
Total debt securities	69,448	65,721
Fair Value, Measurements, Recurring [Member] | Other Debt Securities [Member]
Assets
Total debt securities	7,863	6,420
Fair Value, Measurements, Recurring [Member] | Level I [Member]
Assets
Equity securities- financial services	27	32
Fair Value, Measurements, Recurring [Member] | Level II [Member]
Assets
Total debt securities	212,262	331,220
Derivatives and hedging activities	13,414	19,662
Liabilities
Derivatives and hedging activities	7,789	9,579
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Mortgage-Backed Securities [Member]
Assets
Total debt securities	122,426	100,331
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Obligations of States and Political Subdivisions [Member]
Assets
Total debt securities	9,074	9,052
Fair Value, Measurements, Recurring [Member] | Level II [Member] | U.S. Government Agency Securities [Member]
Assets
Total debt securities	6,510	28,952
Fair Value, Measurements, Recurring [Member] | Level II [Member] | U.S. Government Treasury Securities [Member]
Assets
Total debt securities		123,580
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Corporate Obligations [Member]
Assets
Total debt securities	66,389	62,885
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Other Debt Securities [Member]
Assets
Total debt securities	7,863	6,420
Fair Value, Measurements, Recurring [Member] | Level III [Member]
Assets
Total debt securities	3,059	2,836
Fair Value, Measurements, Recurring [Member] | Level III [Member] | Corporate Obligations [Member]
Assets
Total debt securities	$ 3,059	$ 2,836

Fair Value - Schedule of Change

Fair Value - Schedule of Changes in Fair Value of Level III Investments (Detail) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Beginning balance	$ 2,975	$ 7,199
Total unrealized (loss) gain:
Included in other comprehensive (loss) income	$ 84	$ (253)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]	Gain on sale of loans, net	Gain on sale of loans, net
Transfers in and/or out of Level III		$ (3,517)
Ending balance	$ 3,059	$ 3,429

Fair Value - Schedule of Fair_2

Fair Value - Schedule of Fair Value For Assets Required to be Measured and Reported at Fair Value on a Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed real estate	$ 3,195	$ 3,311
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed real estate	3,195	3,311
Impaired loans		9,693
Individually evaluated loans held for investment	8,374
Level III [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed real estate	3,195	3,311
Impaired loans		$ 9,693
Individually evaluated loans held for investment	$ 8,374

Fair Value - Summary of Additio

Fair Value - Summary of Additional Quantitative Information about Assets Measured at Fair Value on Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring [Member] - Level III [Member] $ in Thousands	Mar. 31, 2024 USD ($)	Sep. 30, 2023 USD ($)
Individually Evaluated Loans Held For Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate	$ 8,374
Servicing Asset Valuation Technique [Extensible Enumeration]	us-gaap:MarketApproachValuationTechniqueMember
Servicing Asset, Measurement Input [Extensible Enumeration]	us-gaap:MeasurementInputAppraisedValueMember
Fair value input appraisal adjustments	0.208
Individually Evaluated Loans Held For Investment [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments	0
Individually Evaluated Loans Held For Investment [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments	0.35
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		$ 9,693
Servicing Asset Valuation Technique [Extensible Enumeration]		us-gaap:MarketApproachValuationTechniqueMember
Servicing Asset, Measurement Input [Extensible Enumeration]		us-gaap:MeasurementInputAppraisedValueMember
Fair value input appraisal adjustments		0.208
Impaired Loans [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments		0
Impaired Loans [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments		0.35
Foreclosed Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate	$ 3,195	$ 3,311
Servicing Asset Valuation Technique [Extensible Enumeration]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Servicing Asset, Measurement Input [Extensible Enumeration]	us-gaap:MeasurementInputAppraisedValueMember	us-gaap:MeasurementInputAppraisedValueMember
Fair value input appraisal adjustments	0.10	0.102
Foreclosed Real Estate Owned [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments		0.10
Foreclosed Real Estate Owned [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments		0.35

Fair Value - Additional Informa

Fair Value - Additional Information (Detail)	Mar. 31, 2024 USD ($) Loan	Sep. 30, 2023 USD ($) Loan
Fair Value Disclosures [Abstract]
Number of impaired loans | Loan	35	49
Impaired loans, carrying value	$ 8,700,000	$ 9,700,000
Impaired loans, valuation allowance	297,000	42,000
Impaired loans, net fair value	$ 8,400,000	$ 9,700,000

Fair Value - Schedule of Carryi

Fair Value - Schedule of Carrying Value and Fair Value for Certain Financial Instruments not Required to be Measured and Reported at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Financial assets:
Loans receivable, net	$ 8,400	$ 9,700
Financial liabilities:
Other borrowings	10,000
Carrying Value [Member]
Financial assets:
Investment securities held to maturity	49,923	52,242
Loans receivable, net	1,708,221	1,680,525
Mortgage servicing rights	946	874
Financial liabilities:
Deposits	1,446,305	1,661,016
Short term borrowings	467,917	374,652
Other borrowings	10,000
Estimated Fair Value [Member]
Financial assets:
Investment securities held to maturity	42,139	42,090
Loans receivable, net	1,578,798	1,524,615
Mortgage servicing rights	1,490	1,470
Financial liabilities:
Deposits	1,422,981	1,656,146
Short term borrowings	461,352	364,291
Other borrowings	9,917
Estimated Fair Value [Member] | Level 1 [Member]
Financial liabilities:
Deposits	1,002,257	1,157,045
Estimated Fair Value [Member] | Level II [Member]
Financial assets:
Investment securities held to maturity		42,090
Estimated Fair Value [Member] | Level 3 [Member]
Financial assets:
Investment securities held to maturity	42,139
Loans receivable, net	1,578,798	1,524,615
Mortgage servicing rights	1,490	1,470
Financial liabilities:
Deposits	420,724	499,101
Short term borrowings	461,352	$ 364,291
Other borrowings	$ 9,917

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Summary of Activity in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 220,724	$ 216,178	$ 219,708	$ 212,337
Ending Balance	223,540	218,799	223,540	218,799
Defined Benefit Pension Plan [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	66	(1,108)	66	(1,108)
Ending Balance	66	(1,108)	66	(1,108)
Unrealized Gains (Losses) on Securities Available for Sale [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(11,296)	(13,041)	(17,525)	(13,879)
Other comprehensive (loss) income before reclassifications	(1,052)	1,277	5,177	2,115
Total other comprehensive income (loss)	(1,052)	1,277	5,177	2,115
Ending Balance	(12,348)	(11,764)	(12,348)	(11,764)
Derivatives [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	3,944	11,172	7,966	12,093
Other comprehensive (loss) income before reclassifications	2,371	(374)	205	153
Amounts reclassified from accumulated other comprehensive income (loss)	(1,871)	(1,810)	(3,727)	(3,258)
Total other comprehensive income (loss)	500	(2,184)	(3,522)	(3,105)
Ending Balance	4,444	8,988	4,444	8,988
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(7,286)	(2,977)	(9,493)	(2,894)
Other comprehensive (loss) income before reclassifications	1,319	903	5,382	2,268
Amounts reclassified from accumulated other comprehensive income (loss)	(1,871)	(1,810)	(3,727)	(3,258)
Total other comprehensive income (loss)	(552)	(907)	1,655	(990)
Ending Balance	$ (7,838)	$ (3,884)	$ (7,838)	$ (3,884)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Summary of Reclassification Out of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Schedule Of Available For Sale Securities [Line Items]
Interest expense	$ (10,796)	$ (4,944)	$ (22,022)	$ (7,903)
Income taxes	(1,078)	(1,052)	(2,106)	(2,177)
NET INCOME	4,562	4,685	8,899	9,551
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Schedule Of Available For Sale Securities [Line Items]
NET INCOME	1,871	1,810	3,727	3,258
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Derivatives [Member]
Schedule Of Available For Sale Securities [Line Items]
Interest expense	4,718	4,127	2,368	2,293
Income taxes	(497)	(483)	(991)	(869)
NET INCOME	$ 1,871	$ 1,810	$ 3,727	$ 3,258

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Financial Instruments as well as their Classification on Consolidated Balance Sheet (Detail) - Designated as Hedging Instrument [Member] - USD ($)	Mar. 31, 2024	Sep. 30, 2023
Derivatives Fair Value [Line Items]
Derivatives Assets, Notional Amount	$ 328,291,000	$ 316,265,000
Fair Values of Derivative Instruments, Asset	13,414,000	19,662,000
Derivatives Liability, Notional Amount	164,289,000	117,516,000
Fair Values of Derivative Instruments, Liability	7,789,000	9,579,000
FHLB Advances [Member]
Derivatives Fair Value [Line Items]
Derivatives Assets, Notional Amount	230,000,000	230,000,000
Fair Values of Derivative Instruments, Asset	5,838,000	10,086,000
Derivatives Liability, Notional Amount	50,000,000
Fair Values of Derivative Instruments, Liability	209,000
Commercial Loans [Member]
Derivatives Fair Value [Line Items]
Derivatives Assets, Notional Amount	98,291,000	86,265,000
Fair Values of Derivative Instruments, Asset	7,576,000	9,576,000
Derivatives Liability, Notional Amount	114,289,000	117,516,000
Fair Values of Derivative Instruments, Liability	$ 7,580,000	$ 9,579,000

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Mar. 31, 2024 USD ($) Contract	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($) Contract	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Interest income (expense)	$ 14,854,000	$ 15,110,000	$ 29,718,000	$ 30,770,000
Derivative liability, collateral against obligations	0		0			$ 0
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member] | Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Interest income (expense)	2,400,000	$ 2,300,000	4,700,000	$ 4,100,000
Increase (decrease) in accrued interest payable					$ 5,700,000
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member] | Interest Rate Swaps [Member] | Commercial Loans [Member] | Variable Rate [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, notional principal amount	212,600,000		212,600,000
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member] | Interest Rate Swaps [Member] | FHLB Advances [Member] | Variable Rate [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, notional principal amount	$ 280,000,000		$ 280,000,000
Derivative, number of instruments | Contract	12		12

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities - Schedule of Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments Gain Loss [Line Items]
(Gain) Loss Recognized in OCI on Derivative	$ 3,005	$ (475)	$ 260	$ 193
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member]
Derivative Instruments Gain Loss [Line Items]
(Gain) Loss Recognized in OCI on Derivative	637	(2,768)	(4,458)	(3,934)
Gain (Loss) Reclassified from Accumulated OCI into Income	$ 2,368	$ 2,293	$ 4,718	$ 4,127
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense	Interest Expense	Interest Expense	Interest Expense
Designated as Hedging Instrument [Member] | Interest Rate Products [Member] | Cash Flow Hedges of Interest Rate Risk [Member]
Derivative Instruments Gain Loss [Line Items]
(Gain) Loss Recognized in OCI on Derivative	$ 637	$ (2,768)	$ (4,458)	$ (3,934)
Gain (Loss) Reclassified from Accumulated OCI into Income	$ 2,368	$ 2,293	$ 4,718	$ 4,127