ESSA Bancorp (ESSA) 10-K 16 Dec 19 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2019	Dec. 01, 2019	Mar. 31, 2019
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Trading Symbol	ESSA
Entity Registrant Name	ESSA Bancorp, Inc.
Entity Central Index Key	0001382230
Current Fiscal Year End Date	--09-30
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		11,290,506
Entity Public Float			$ 175,697,599
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
Entity Incorporation, State or Country Code	PA
Title of 12(b) Security	Common Stock, $0.01 par value
Security Exchange Name	NASDAQ
Document Annual Report	true
Document Transition Report	false
Documents Incorporated by Reference	Proxy Statement for the 2020 Annual Meeting of Stockholders of the Registrant (Part III)

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($)	Sep. 30, 2019	Sep. 30, 2018
ASSETS
Cash and due from banks	$ 48,426,000	$ 39,197,000
Interest-bearing deposits with other institutions	3,816,000	4,342,000
Total cash and cash equivalents	52,242,000	43,539,000
Certificates of deposit		500,000
Investment securities available for sale, at fair value	313,393,000	371,438,000
Loans receivable (net of allowance for loan losses of $12,630 and $11,688)	1,328,653,000	1,305,071,000
Regulatory stock, at cost	11,579,000	12,973,000
Premises and equipment, net	14,335,000	14,601,000
Bank-owned life insurance	39,601,000	38,630,000
Foreclosed real estate	240,000	1,141,000
Intangible assets, net	1,066,000	1,375,000
Goodwill	13,801,000	13,801,000
Deferred income taxes	5,122,000	8,441,000
Other assets	19,395,000	22,280,000
TOTAL ASSETS	1,799,427,000	1,833,790,000
LIABILITIES
Deposits	1,342,830,000	1,336,855,000
Short-term borrowings	107,701,000	179,773,000
Other borrowings	140,581,000	118,723,000
Advances by borrowers for taxes and insurance	6,700,000	6,826,000
Other liabilities	12,107,000	12,427,000
TOTAL LIABILITIES	1,609,919,000	1,654,604,000
STOCKHOLDERS’ EQUITY
Preferred stock ($.01 par value; 10,000,000 shares authorized, none issued)
Common stock ($.01 par value; 40,000,000 shares authorized, 18,133,095 issued; 11,321,417 and 11,782,718 outstanding at September 30, 2019 and 2018, respectively)	181,000	181,000
Additional paid-in capital	181,161,000	180,765,000
Unallocated common stock held by the Employee Stock Ownership Plan (“ESOP”)	(7,803,000)	(8,255,000)
Retained earnings	102,465,000	94,112,000
Treasury stock, at cost; 6,811,678 and 6,350,377 shares at September 30, 2019 and 2018, respectively	(85,216,000)	(77,707,000)
Accumulated other comprehensive loss	(1,280,000)	(9,910,000)
TOTAL STOCKHOLDERS’ EQUITY	189,508,000	179,186,000
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,799,427,000	$ 1,833,790,000

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Statement Of Financial Position [Abstract]
Allowance for loan losses	$ 12,630	$ 11,688
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	11,321,417	11,782,718
Treasury stock, shares outstanding	6,811,678	6,350,377

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
INTEREST INCOME
Loans receivable, including fees	$ 56,522	$ 53,399
Investment securities:
Taxable	9,338	8,826
Exempt from federal income tax	335	903
Other investment income	1,564	1,375
Total interest income	67,759	64,503
INTEREST EXPENSE
Deposits	14,422	10,308
Short-term borrowings	3,471	3,516
Other borrowings	2,856	2,444
Total interest expense	20,749	16,268
NET INTEREST INCOME	47,010	48,235
Provision for loan losses	2,076	4,000
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	44,934	44,235
NONINTEREST INCOME
Service fees on deposit accounts	3,319	3,373
Services charges and fees on loans	1,225	1,319
Unrealized gain on equity securities	5
Trust and investment fees	1,099	1,020
Gain on sale of investment securities, net	44	162
Earnings on bank-owned life insurance	971	1,004
Insurance commissions	818	764
Other	676	171
Total noninterest income	8,157	7,813
NONINTEREST EXPENSE
Compensation and employee benefits	24,029	23,307
Occupancy and equipment	4,189	4,461
Professional fees	2,054	2,368
Data processing	3,648	3,561
Advertising	699	903
Federal Deposit Insurance Corporation (“FDIC”) premiums	417	871
Gain on foreclosed real estate	(81)	(24)
Amortization of intangible assets	309	469
Other	2,789	3,937
Total noninterest expense	38,053	39,853
Income before income taxes	15,038	12,195
Income taxes	2,415	5,664
NET INCOME	$ 12,623	$ 6,531
Earnings per share:
Basic	$ 1.18	$ 0.60
Diluted	1.18	0.60
Dividends per share	$ 0.40	$ 0.36

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 12,623	$ 6,531
Investment securities available for sale:
Unrealized holding gain (loss)	15,458	(12,826)
Tax effect	(3,250)	2,943
Reclassification of gains recognized in net income	(44)	(162)
Tax effect	9	39
Net of tax amount	12,173	(10,006)
Pension plan adjustment:
Unrealized holding (loss) gain	(1,329)	348
Tax effect	279	(73)
Net of tax amount	(1,050)	275
Derivative and hedging activities adjustments:
Changes in unrealized (losses) gains on derivative included in net income	(2,226)	1,696
Tax effect	467	(427)
Reclassification adjustment for gains on derivatives included in net income	(934)	(459)
Tax effect	196	111
Net of tax amount	(2,497)	921
Total other comprehensive income (loss)	8,626	(8,810)
Comprehensive income (loss)	$ 21,249	$ (2,279)

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Unallocated Common Stock Held by the ESOP [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Sep. 30, 2017	$ 182,727	$ 181	$ 180,764	$ (8,720)	$ 91,147	$ (79,891)	$ (754)
Beginning Balance, Shares at Sep. 30, 2017		11,596,263
Net income	6,531				6,531
Other comprehensive income (loss)	(8,810)						(8,810)
Reclassification of certain income tax effects from accumulated other comprehensive income					346		(346)
Cash dividends declared ($.36 and $.40 per share for September 2018 and 2019)	(3,912)				(3,912)
Stock-based compensation	350		350
Allocation of ESOP stock	725		260	465
Allocation of treasury shares to incentive plan			(185)			185
Allocation of treasury shares to incentive plan, Shares		14,778
Stock options exercised	1,575		(424)			1,999
Stock options exercised, Shares		171,677
Ending Balance at Sep. 30, 2018	$ 179,186	$ 181	180,765	(8,255)	94,112	(77,707)	(9,910)
Ending Balance, Shares at Sep. 30, 2018	11,782,718	11,782,718
Net income	$ 12,623				12,623
Other comprehensive income (loss)	8,626						8,626
Reclassification of certain income tax effects from accumulated other comprehensive income							4
Cash dividends declared ($.36 and $.40 per share for September 2018 and 2019)	(4,266)				(4,266)
Stock-based compensation	544		544
Allocation of ESOP stock	700		248	452
Allocation of treasury shares to incentive plan	(108)		(396)			288
Allocation of treasury shares to incentive plan, Shares		25,383
Reclassification of equity investment securities					(4)		4
Treasury shares purchased	(7,797)					(7,797)
Treasury shares purchased, Shares		(486,684)
Ending Balance at Sep. 30, 2019	$ 189,508	$ 181	$ 181,161	$ (7,803)	$ 102,465	$ (85,216)	$ (1,280)
Ending Balance, Shares at Sep. 30, 2019	11,321,417	11,321,417

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash dividends declared, per share	$ 0.40	$ 0.36
Retained Earnings [Member]
Cash dividends declared, per share	$ 0.40	$ 0.36

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
OPERATING ACTIVITIES
Net income	$ 12,623,000	$ 6,531,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	2,076,000	4,000,000
Provision for depreciation and amortization	1,084,000	1,177,000
Amortization and accretion of discounts and premiums, net	2,945,000	4,259,000
Net gain on sale of investment securities	(44,000)	(162,000)
Compensation expense from ESOP	700,000	725,000
Stock-based compensation	544,000	350,000
Unrealized gain on equity securities	(5,000)
Increase (decrease) in accrued interest receivable	415,000	(491,000)
Increase in accrued interest payable	15,000	326,000
Earnings on bank-owned life insurance	(971,000)	(1,004,000)
Deferred federal income taxes	1,026,000	4,572,000
Decrease in accrued pension liability	(478,000)	(496,000)
Gain on foreclosed real estate	(81,000)	(24,000)
Amortization of intangible assets	309,000	469,000
Loss on disposal of fixed assets		562,000
Other, net	(1,968,000)	2,592,000
Net cash provided by operating activities	18,190,000	23,386,000
INVESTING ACTIVITIES
Certificate of deposit maturities	500,000
Investment securities available for sale:
Proceeds from sale of investment securities	45,721,000	37,889,000
Proceeds from principal repayments and maturities	46,957,000	53,399,000
Purchases	(20,729,000)	(86,929,000)
Increase in loans receivable, net	(4,996,000)	(76,079,000)
Redemption of regulatory stock	18,351,000	24,639,000
Purchase of regulatory stock	(16,957,000)	(23,780,000)
Purchase of residential real estate loans	(22,294,000)
Investment in limited partnership		(476,000)
Proceeds from sale of foreclosed real estate	1,218,000	1,566,000
(Purchase) disposition of premises, equipment, and software	(830,000)	39,000
Net cash provided by (used for) investing activities	46,941,000	(69,732,000)
FINANCING ACTIVITIES
Increase in deposits, net	5,975,000	61,994,000
Net increase (decrease) in short-term borrowings	(72,072,000)	42,327,000
Proceeds from other borrowings	107,105,000	43,630,000
Repayment of other borrowings	(85,247,000)	(99,075,000)
(Decrease) Increase in advances by borrowers for taxes and insurance	(126,000)	1,663,000
Purchase of treasury stock shares	(7,797,000)
Exercising of stock options		1,575,000
Dividends on common stock	(4,266,000)	(3,912,000)
Net cash provided by (used for) financing activities	(56,428,000)	48,202,000
Increase in cash and cash equivalents	8,703,000	1,856,000
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	43,539,000	41,683,000
CASH AND CASH EQUIVALENTS AT END OF YEAR	52,242,000	43,539,000
Cash paid:
Interest	20,734,000	15,942,000
Income taxes		(2,000)
Noncash items:
Transfers from loans to foreclosed real estate	236,000	1,259,000
Unrealized holding gain (loss) on investment securities available for sale	$ 15,414,000	$ (12,988,000)

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES A summary of significant accounting and reporting policies applied in the presentation of the accompanying financial statements follows: 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. On November 6, 2014, the Company converted its status from a savings and loan holding company to a bank holding company. In addition, the Bank converted from a Pennsylvania-chartered savings association to a Pennsylvania-chartered savings bank. The Bank’s primary business consists of the taking of deposits and granting of loans to customers generally in Monroe, Northampton, Lehigh, Lackawanna, Luzerne, Delaware, Chester, and Montgomery counties, Pennsylvania. The Bank is subject to regulation and supervision by the Pennsylvania Department of Banking and Securities and the Federal Deposit Insurance Corporation. The investment in subsidiary 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 and is currently inactive. 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 owned 100 percent 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. Use of Estimates in the Preparation of Financial Statements The accounting principles followed by the Company and its subsidiary and the methods of applying these principles conform to U.S. generally accepted accounting principles and to general practice within the banking industry. In preparing the consolidated financial statements, the Company 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. Securities The Company determines the appropriate classification of debt securities at the time of purchase and reevaluates such designation as of each balance sheet date. Securities classified as available for sale are those securities that the Company intends to hold for an indefinite period of time but not necessarily to maturity. Any decision to sell a security classified as available for sale would be based on various factors, including significant movement in interest rates, changes in maturity mix of the Company’s assets and liabilities, liquidity needs, regulatory capital considerations, and other similar factors. Securities available for sale are carried at fair value. Unrealized gains and losses are reported in other comprehensive income (loss), net of the related deferred tax effects. Realized gains or losses, determined on the basis of the cost of the specific securities sold, are included in earnings. Premiums and discounts are recognized in interest income using the interest method over the period to maturity. Declines in the fair value of available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. In estimating other-than-temporary impairment losses, the Company considers: (1) the length of time and the extent to which the fair value has been less than cost; (2) the financial condition and near-term prospects of the issuer; and (3) the Company’s intent to sell the security or whether it’s more likely than not that the Company would be required to sell the security before its anticipated recovery in market value. Loans Receivable Loans receivable that the Company has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at their outstanding unpaid principal balances, net of an allowance for loan losses and any deferred fees and costs. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the yield (interest income) of the related loans. The Company is generally amortizing these amounts over the contractual life of the loan. The accrual of interest is generally discontinued when the contractual payment of principal or interest has become 90 days past due or the Company has serious doubts about further collectability of principal or interest, even though the loan is currently performing. A loan may remain on accrual status if it is in the process of collection and is either guaranteed or well secured. When a loan is placed on nonaccrual status, unpaid interest credited to income is reversed. Interest received on nonaccrual loans generally is either applied against principal or reported as interest income, according to the Company’s judgment as to the collectability of principal. Generally, loans are restored to accrual status when the obligation is brought current and has performed in accordance with the contractual terms for a reasonable period of time and the ultimate collectability of the total contractual principal and interest is no longer in doubt. Loans Acquired Loans acquired including loans that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments receivable, are initially recorded at fair value (as determined by the present value of expected future cash flows) with no valuation allowance. Loans are evaluated individually to determine if there is evidence of deterioration of credit quality since origination. The difference between the undiscounted cash flows expected at acquisition and the investment in the loan, or the “accretable yield,” is recognized as interest income on a level-yield method over the life of the loan. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “non-accretable difference,” are not recognized as a yield adjustment or as a loss accrual or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loan over its remaining estimated life. Decreases in expected cash flows are recognized immediately as impairment. Any valuation allowances on these impaired loans reflect only losses incurred after acquisition. For purchased loans acquired that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Loans are aggregated and accounted for as a pool of loans if the loans being aggregated have common risk characteristics. Subsequent to the purchase date, the methods utilized to estimate the required allowance for credit losses for these loans is similar to originated loans; however, the Company records a provision for loan losses only when the required allowance exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loans. Allowance for Loan Losses The allowance for loan losses is established through provisions for loan losses charged against income. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance for loan losses. The allowance for loan losses is maintained at a level by management which represents the evaluation of known and inherent risks in the loan portfolio at the Consolidated Balance Sheet date. Management’s periodic evaluation of the adequacy of the allowance is based on the Company’s past loan loss experience, known and inherent risks in the portfolio, adverse situations that may affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions, and other relevant factors. This evaluation is inherently subjective, since it requires material estimates that may be susceptible to significant change, including the amounts and timing of future cash flows expected to be received on impaired loans. The allowance for loan losses consists of specific and general components. The specific component relates to loans that are classified as impaired. For such loans an allowance for loan losses is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers nonclassified loans and is based on historical loss experience adjusted for qualitative factors. All loans are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and all loan types are considered impaired if the loan is restructured in a troubled debt restructuring. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment 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. Large groups of smaller-balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual consumer and residential mortgage loans for impairment disclosures unless such loans are part of a larger relationship that is impaired or classified as a troubled debt restructuring or is more than 180 days past due. A loan is considered to be a troubled debt restructuring (“TDR”) loan when the Company grants a concession to the borrower because of the borrower’s financial condition that it would not otherwise consider. Such concessions include the reduction of interest rates, forgiveness of principal or interest, or other modifications of interest rates that are less than the current market rate for new obligations with similar risk. TDR loans that are in compliance with their modified terms and that yield a market rate may be removed from the TDR status after one year of performance. Regulatory Stock Regulatory stock consists of Federal Home Loan Bank (“FHLB”) of Pittsburgh stock and Atlantic Community Bankers Bank stock. Regulatory stock is carried at cost. The Company is a member of the Federal Home Loan Bank System and holds stock in the Federal Home Loan Bank of Pittsburgh. As a member, the Company maintains an investment in the capital stock of the FHLB of Pittsburgh in an amount not less than 10 basis points of the outstanding member asset value plus 4.0 percent of its outstanding FHLB borrowings, as calculated throughout the year. The equity security is accounted for at cost and classified separately on the Consolidated Balance Sheet. The stock is bought from and sold to the FHLB based upon its $100 par value. The stock does not have a readily determinable fair value and as such is classified as restricted stock, carried at cost and evaluated by management. The stock’s value is determined by the ultimate recoverability of the par value rather than by recognizing temporary declines. The determination of whether the par value will ultimately be recovered is influenced by criteria such as the following: (a) The significance of the decline in net assets of the FHLB as compared to the capital stock amount and the length of time this situation has persisted; (b) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance; (c) the impact of legislative and regulatory changes on the customer base of the FHLB; and (d) the liquidity position of the FHLB. With consideration given to these factors, management concluded that the stock was not impaired at September 30, 2019. Loan Servicing Servicing assets are recognized as separate assets when rights are acquired through purchase or through sale of financial assets. Capitalized servicing rights are reported in other assets and are amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying financial assets. Servicing assets are evaluated for impairment based upon a third-party appraisal. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. Impairment is recognized through a valuation allowance to the extent that fair value is less than the capitalized amount. The Company’s loan servicing assets at September 30, 2019 and 2018, were not impaired. Total servicing assets included in other assets as of September 30, 2019 and 2018, were $177,000 and $206,000, respectively. Premises and Equipment Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the useful lives of the related assets, which range from 10 to 40 years for buildings, land improvements, and leasehold improvements and 3 to 7 years for furniture, fixtures, and equipment. Expenditures for maintenance and repairs are charged to operations as incurred. Costs of major additions and improvements are capitalized. Derivative Instruments and Hedging Activities The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. In accordance with the FASB’s fair value measurement guidance, the Company has elected to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. Bank-Owned Life Insurance (“BOLI”) The Company owns insurance on the lives of a certain group of key employees. The policies were purchased to help offset the increase in the costs of various fringe benefit plans, including healthcare. The cash surrender value of these policies is included as an asset on the Consolidated Balance Sheet, and any increase in cash surrender value is recorded as noninterest income on the Consolidated Statement of Income. In the event of the death of an insured individual under these policies, the Company would receive a death benefit which would be recorded as noninterest income. Foreclosed Real Estate Real estate owned acquired in settlement of foreclosed loans is carried at fair value minus estimated costs to sell. At acquisition of real estate acquired in settlement of foreclosed loans, the excess of the remaining loan balance over the asset’s estimated fair value less cost to sell is charged off against the allowance for loan losses. Subsequent declines in the asset’s value are recognized as noninterest expense in the Consolidated Statement of Income. Operating expenses of such properties, net of related income, are expensed in the period incurred. Goodwill and Intangible Assets Goodwill is not amortized, but it is tested at least annually for impairment in the fourth quarter, or more frequently if indicators of impairment are present. If the estimated current fair value of a reporting unit exceeds its carrying value, no additional testing is required and an impairment loss is not recorded. The Company uses market capitalization and multiples of tangible book value methods to determine the estimated current fair value of its reporting unit. Based on this analysis, no impairment was recorded in 2019 or 2018. The other intangible assets are assigned useful lives, which are amortized on an accelerated basis over their weighted-average lives. The Company periodically reviews intangible assets for impairment as events or changes in circumstances indicate that the carrying amount of such asset may not be recoverable. Based on these reviews, no impairment was recorded in 2019 and 2018. The following tables provide information for the carrying amount of goodwill and intangible assets (in thousands). Goodwill 2019 2018 Balance at beginning of year $ 13,801 $ 13,801 Goodwill acquired - - Balance at end of year $ 13,801 $ 13,801 Intangible assets 2019 2018 Balance at beginning of year $ 1,375 $ 1,844 Intangible assets acquired - - Amortization (309 ) (469 ) Balance at end of year $ 1,066 $ 1,375 Amortizable intangible assets were composed of the following: September 30, 2019 2018 Gross Amount Accumulated Amortization (dollars in thousands) Core deposit intangible $ 4,787 $ 3,721 $ 3,412 2019 2018 Aggregate amortization expense: As of the years ended September 30 $ 309 $ 469 Estimated future amortization expense (dollars in thousands): 2020 $ 275 2021 272 2022 239 2023 190 2024 90 $ 1,066 Employee Benefit Plans The Bank maintains a noncontributory, defined benefit pension plan for all employees who have met age and length of service requirements. The Bank also maintains a defined contribution Section 401(k) plan covering eligible employees. The Company created an ESOP for the benefit of employees who meet certain eligibility requirements. The Company makes cash contributions to the ESOP on an annual basis. The Company maintains an equity incentive plan to provide for issuance or granting of shares of common stock for stock options or restricted stock. The Company has recorded stock-based employee compensation cost using the fair value method as allowed under generally accepted accounting principles. Management estimated the fair values of all option grants using the Black-Scholes option-pricing model. Management estimated the expected life of the options using the simplified method as allowed under generally accepted accounting principles. The risk-free rate was determined utilizing the treasury yield for the expected life of the option contract. Advertising Costs In accordance with generally accepted accounting principles, the Company expenses all advertising expenditures incurred. Transfers of Financial Assets Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company; (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets; and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Income Taxes Deferred tax assets and liabilities are reflected based on the differences between the financial statement and the income tax basis of assets and liabilities using the enacted marginal tax rates. Deferred income tax expense and benefit are based on the changes in the deferred tax assets or liabilities from period to period. Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which such items are expected to be realized or settled. As changes in tax rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The Company files a consolidated federal income tax return and individual state income tax returns. The Company prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. Cash and Cash Equivalents The Company has defined cash and cash equivalents as cash and due from banks and interest-bearing deposits with other institutions with original maturities of less than 90 days. Earnings Per Share The Company provides dual presentation of basic and diluted earnings per share. Basic earnings per share are calculated utilizing net income as reported as the numerator and average shares outstanding as the denominator. The computation of diluted earnings per share differs in that the dilutive effects of any options are adjusted for in the denominator. Comprehensive Income (Loss) The Company is required to present comprehensive income (loss) and its components in a full set of general-purpose financial statements for all periods presented. Other comprehensive income (loss) is composed of net unrealized holding gains or losses on its available-for-sale investment and mortgage-backed securities portfolio and derivative instruments, and changes in unrecognized pension cost. Fair Value Measurements The Company groups assets and liabilities carried at fair value in three levels, based on the markets in which the assets are traded and the reliability of the assumptions used to determine fair value. These levels are: • Level I – Valuation is based upon quoted prices for identical instruments traded in active markets. • Level II – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. • Level III – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s own estimates of assumptions that market participants would use in pricing the asset. The Company determines fair value based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. It is our policy to maximize the use of observable inputs and minimize the use of unobservable inputs when developing fair value measurements, in accordance with the fair value hierarchy in generally accepted accounting principles. Fair value measurements for most of the Company’s assets are obtained from independent pricing services that we have engaged for this purpose. When available, the Company, or the Company’s independent pricing service, use quoted market prices to measure fair value. If market prices are not available, fair value measurement is based upon models that incorporate available trade, bid, and other market information. Subsequently, all of the Company’s financial instruments use either of the foregoing methodologies to determine fair value adjustments recorded to our financial statements. In certain cases, however, when market observable inputs for model-based valuation techniques may not be readily available, we are required to make judgments about assumptions market participants would use in estimating the fair value of financial instruments. The degree of management judgment involved in determining the fair value of a financial instrument is dependent upon the availability of quoted market prices or observable market parameters. For financial instruments that trade actively and have quoted market prices or observable market parameters, there is minimal subjectivity involved in measuring fair value. When observable market prices and parameters are not fully available, management judgment is necessary to estimate fair value. In addition, changes in the market conditions may reduce the availability of quoted prices or observable data. When market data is not available, we use valuation techniques requiring more management judgment to estimate the appropriate fair value measurement. Therefore, the results cannot be determined with precision and may not be realized in an actual sale or immediate settlement of the asset. Additionally, there may be inherent weaknesses in any calculation technique, and changes in the underlying assumptions used, including discount rates and estimates of future cash flows, that could significantly affect the results of current or future valuations. Reclassification of Comparative Amounts Certain items previously reported have been reclassified to conform to the current year’s reporting format. Such reclassifications did not affect consolidated net income or consolidated stockholders’ equity. Adoption of New Standards In May 2014, the FASB issued ASU No. 2014-09, “Revenue from contracts with customers.” In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. Recent Accounting Pronouncements In February 2016, the FASB issued Accounting Standards Update (ASU) 2016-02, Leases. The new leases standard requires a lessor to classify leases as either sales-type, direct financing or operating, similar to existing U.S. GAAP. Classification depends on the same five criteria used by lessees plus certain additional factors. The subsequent accounting treatment for all three lease types is substantially equivalent to existing U.S. GAAP for sales-type leases, direct financing leases, and operating leases. However, the new standard updates certain aspects of the lessor accounting model to align it with the new lessee accounting model, as well as with the new revenue standard under Topic 606. Lessees and lessors are required to provide certain qualitative and quantitative disclosures to enable users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The new leases standard addresses other considerations including identification of a lease, separating lease and non-lease components of a contract, sale and leaseback transactions, modifications, combining contracts, reassessment of the lease term, and re-measurement of lease payments. It also contains comprehensive implementation guidance with practical examples ASU 2016-02 will be effective for us on October 1, 2019 and initially required transition using a modified retrospective approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842) “Leases (Topic 842) - Targeted Improvements,” ASU 2018-20, “Leases (Topic 842) - Narrow-Scope Improvements for Lessors,” Leases (Topic 842): Codification Improvements, Upon adoption of ASU 2016-02, ASU 2018-01, ASU 2018-11, ASU 2018-20, and ASU 2019-01 on October 1, 2019, we expect to recognize right-of-use assets and related lease liabilities totaling $5.8 million and $5.8 million, respectively. We expect to elect to apply certain practical expedients provided under ASU 2016-02 whereby we will not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. We also do not expect to apply the recognition requirements of ASU 2016-02 to any short-term leases (as defined by related accounting guidance). We expect to utilize the modified-retrospective transition approach prescribed by ASU 2018-11. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480), and Derivative and Hedging (Topic 815) In June 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718) In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes the Disclosure Requirements for Fair Value Measurements. In August 2018, the FASB issued ASU 2018-14, Compensation – Retirement Benefits (Topic 715-20) In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815) In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments – Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments Derivatives and Hedging Financial Instruments In May 2019, the FASB issued ASU 2019-05, Financial Instruments – Credit Losses, Topic 326 Financial Instruments – Credit Losses In July 2019, the FASB issued ASU 2019-07, Codification Updates to SEC Sections, Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10532, Disclosure Update and Simplification, and Nos. 33-10231 and 33-10442, Investment Company Reporting Modernization, and Miscellaneous

Earnings per Share

Earnings per Share	12 Months Ended
	Sep. 30, 2019
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 years ended September 30, 2019 and 2018. 2019 2018 Weighted-average common shares outstanding 18,133,095 18,133,095 Average treasury stock shares (6,562,435 ) (6,420,854 ) Average unearned ESOP shares (792,073 ) (837,342 ) Average unearned nonvested shares (45,421 ) (41,055 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 10,733,166 10,833,844 Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share - - Additional common stock equivalents (stock options) used to calculate diluted earnings per share - - Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 10,733,166 10,833,844 At September 30, 2019, there were 34,122 shares of nonvested stock outstanding at prices ranging from $14.47 per share to $16.57 per share that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive. At September 30, 2018 there were 37,968 shares of nonvested stock outstanding at prices ranging from $13.52 per share to $16.56 that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive.

Investment Securities

Investment Securities	12 Months Ended
	Sep. 30, 2019
Investments Debt And Equity Securities [Abstract]
Investment Securities	3. INVESTMENT SECURITIES The amortized cost, gross unrealized gains and losses, and fair value of investment securities available for sale are summarized as follows (in thousands): 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale Fannie Mae $ 126,672 $ 987 $ (554 ) $ 127,105 Freddie Mac 80,639 453 (331 ) 80,761 Governmental National Mortgage Association securities 18,590 182 (198 ) 18,574 Total mortgage-backed securities 225,901 1,622 (1,083 ) 226,440 Obligations of states and political subdivisions 19,860 356 (4 ) 20,212 U.S. government agency securities 6,454 234 - 6,688 Corporate obligations 43,121 594 (581 ) 43,134 Other debt securities 17,036 84 (201 ) 16,919 Total debt securities $ 312,372 $ 2,890 $ (1,869 ) $ 313,393 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale Fannie Mae $ 147,433 $ 17 $ (5,827 ) $ 141,623 Freddie Mac 99,587 2 (4,415 ) 95,174 Governmental National Mortgage Association securities 22,164 - (838 ) 21,326 Total mortgage-backed securities 269,184 19 (11,080 ) 258,123 Obligations of states and political subdivisions 42,090 251 (1,392 ) 40,949 U.S. government agency securities 5,678 2 (122 ) 5,558 Corporate obligations 48,559 116 (1,260 ) 47,415 Other debt securities 20,295 - (922 ) 19,373 Total debt securities 385,806 388 (14,776 ) 371,418 Equity securities - financial services(a) 25 - (5 ) 20 Total $ 385,831 $ 388 $ (14,781 ) $ 371,438 (a)As of October 1, 2018, the Company adopted ASU 2016-01 resulting in reclassification of equity securities from available for-sale investment securities to other assets. At September 30, 2018, the Company’s investment in equity securities was comprised of common stock issued by an unrelated bank holding company. At September 30, 2019 and September 30, 2018, the Company had $25,000 and $20,000 respectively, in equity securities recorded at fair value. Prior to October 1, 2018, equity securities were stated at fair value with unrealized gains and losses reported as a separate component of Accumulated Other Comprehensive Income (“AOCI”), net of tax. At September 30, 2018, net unrealized loss net of tax of $4,000 had been recognized in AOCI. On October 1, 2018, these unrealized gains and losses were reclassified out of AOCI and into retained earnings with subsequent changes in fair value being recognized in net income. The following is a summary of unrealized and realized gains and losses recognized in net income on equity securities during the year ended September 30, 2019: (Dollars in thousands) 2019 Net gains recognized during the period on equity securities $ 5 Less: Net gains recognized during the period on equity securities sold during the period - Unrealized gains recognized during the reporting period on equity securities still held at the reporting date $ 5 The amortized cost and fair value of debt securities at September 30, 2019, 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 Amortized Cost Fair Value Due in one year or less $ - $ - Due after one year through five years 19,667 20,004 Due after five years through ten years 86,380 86,819 Due after ten years 206,325 206,570 Total $ 312,372 $ 313,393 For the years ended September 30, 2019 and 2018, the Company realized gross gains of $268,000 and $511,000 and gross losses of $224,000 and $349,000 respectively, and proceeds from the sale of investment securities of $45,721,000 and $37,889,000, respectively. Investment securities with carrying values of $192,530,000 and $256,317,000 at September 30, 2019 and 2018, respectively, were pledged to secure public deposits and other purposes as required by law. The following tables show the Company’s gross unrealized losses and fair value, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands): 2019 Less than Twelve Months Twelve Months or Greater Total Number of Securities Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fannie Mae 48 $ 5,568 $ (6 ) $ 45,867 $ (548 ) $ 51,435 $ (554 ) Freddie Mac 32 765 - 29,661 (331 ) 30,426 (331 ) Governmental National Mortgage Association securities 12 345 (1 ) 8,242 (197 ) 8,587 (198 ) Obligations of states and political subdivisions 2 2,159 (4 ) - - 2,159 (4 ) Corporate obligations 13 2,063 (5 ) 12,015 (576 ) 14,078 (581 ) Other debt securities 14 3,493 (16 ) 6,132 (185 ) 9,625 (201 ) Total 121 $ 14,393 $ (32 ) $ 101,917 $ (1,837 ) $ 116,310 $ (1,869 ) 2018 Less than Twelve Months Twelve Months or Greater Total Number of Securities Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fannie Mae 100 $ 63,997 $ (1,442 ) $ 74,783 $ (4,385 ) $ 138,780 $ (5,827 ) Freddie Mac 74 28,902 (830 ) 65,812 (3,585 ) 94,714 (4,415 ) Governmental National Mortgage Association securities 19 9,776 (142 ) 11,550 (696 ) 21,326 (838 ) Obligations of states and political subdivisions 25 7,651 (105 ) 21,004 (1,287 ) 28,655 (1,392 ) U.S. government agency securities 3 5,177 (122 ) - - 5,177 (122 ) Corporate obligations 34 20,172 (363 ) 13,206 (897 ) 33,378 (1,260 ) Other debt securities 20 2,399 (38 ) 16,974 (884 ) 19,373 (922 ) Equity Securities(a) 1 20 (5 ) - - 20 (5 ) Total 276 $ 138,094 $ (3,047 ) $ 203,329 $ (11,734 ) $ 341,423 $ (14,781 ) (a)As of October 1, 2018, the Company adopted ASU 2016-01 resulting in reclassification of equity securities from available for-sale investment securities to other assets. At September 30, 2018, the Company’s investment in equity securities was comprised of common stock issued by an unrelated bank holding company. The Company’s investment securities portfolio contains unrealized losses on securities, including mortgage-related instruments issued or backed by the full faith and credit of the United States government, or generally viewed as having the implied guarantee of the U.S. government agency securities, other mortgage-backed securities, corporate obligations, obligations of states and political subdivisions, equity securities and other debt securities. The Company reviews its position quarterly and has asserted that at September 30, 2019 and 2018, the declines outlined in the above table represent temporary declines and the Company would not be required to sell the security before its anticipated recovery in market value. The Company has concluded that any impairment of its investment securities portfolio at September 30, 2019 and 2018, is not other than temporary but is the result of interest rate changes that are not expected to result in the noncollection of principal and interest during the period.

Loans Receivable

Loans Receivable	12 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Loans Receivable	4. LOANS RECEIVABLE Loans receivable consist of the following (in thousands): 2019 2018 Real estate loans: Residential $ 597,514 $ 580,561 Construction 5,672 3,920 Commercial 480,647 416,573 Commercial 55,559 49,479 Obligations of states and political subdivisions 71,828 73,362 Home equity loans and lines of credit 45,156 43,962 Auto loans 81,983 146,220 Other 2,924 2,682 1,341,283 1,316,759 Less allowance for loan losses 12,630 11,688 Net loans $ 1,328,653 $ 1,305,071 Included in the September 30, 2019 balances are loans acquired from Eagle National Bank in 2015, First National Community Bank and Franklin Security Bank in 2014 and First Star Bank in 2012. Upon acquisition, the Company evaluated whether each acquired loan (regardless of size) was within the scope of ASC 310-30, Receivables-Loans and Debt Securities Acquired with Deteriorated Credit Quality Changes in the accretable yield for purchased credit-impaired loans were as follows, since acquisition, for the years ended September 30, 2019 and 2018 (in thousands): 2019 2018 Balance at beginning of period $ 107 $ 471 Reclassification and other - 681 Accretion (41 ) (1,045 ) Balance at end of period $ 66 $ 107 Included in reclassification and other for loans acquired without specific evidence of deterioration in credit quality were $0 and $681,000 of reclassifications from nonaccretable discounts to accretable discounts in 2019 and 2018 respectively. The following table presents additional information regarding loans acquired and accounted for in accordance with ASC 310-30 (in thousands): 2019 2018 Acquired Loans with Specific Evidence or Deterioration in Credit Quality (ASC 310-30) Acquired Loans with Specific Evidence or Deterioration in Credit Quality (ASC 310-30) Outstanding balance $ 1,392 $ 2,497 Carrying amount 1,299 1,802 There has been $77,000 in allowance for loan losses recorded for acquired loans with or without specific evidence of deterioration in credit quality as of September 30, 2019. There has been $68,000 in allowance for loan losses recorded for acquired loans with or without specific evidence of deterioration in credit quality as of September 30, 2018. In addition, no allowance for loan losses has been reversed. Loans serviced by the Company for others amounted to $85,743,000 and $72,043,000 at September 30, 2019 and 2018, respectively. The Company’s primary business activity is with customers located in counties where its branch offices are located and to a lesser extent, the contiguous counties in the Commonwealth of Pennsylvania. Commercial, residential, and consumer loans are granted. The Company also funds commercial and residential loans originated outside its immediate trade area provided such loans meet the Company’s credit policy guidelines. Although the Company has a diversified loan portfolio at September 30, 2019 and 2018, loans outstanding to individuals and businesses are dependent upon the local economic conditions in its immediate trade area. At September 30, 2019 and 2018, the Company had nonaccrual loans of $10,063,000 and $10,511,000, respectively. Additional interest income that would have been recorded under the original terms of the loan agreements amounted to $277,000, and $171,000 for the years ended September 30, 2019 and 2018, respectively. The following tables show the amount of loans in each category that was individually and collectively evaluated for impairment at the dates indicated (in thousands): Total Loans Individually Evaluated for Impairment Loans Acquired with Deteriorated Credit Quality Collectively Evaluated for Impairment September 30, 2019 Real estate loans: Residential $ 597,514 $ 4,281 $ - $ 593,233 Construction 5,672 - - 5,672 Commercial 480,647 2,633 1,299 476,715 Commercial 55,559 448 - 55,111 Obligations of states and political subdivisions 71,828 - - 71,828 Home equity loans and lines of credit 45,156 400 - 44,756 Auto Loans 81,983 583 - 81,400 Other 2,924 31 - 2,893 Total $ 1,341,283 $ 8,376 $ 1,299 $ 1,331,608 Total Loans Individually Evaluated for Loans Acquired with Deteriorated Credit Quality Collectively Evaluated for Impairment September 30, 2018 Real estate loans: Residential $ 580,561 $ 5,317 $ - $ 575,244 Construction 3,920 - - 3,920 Commercial 416,573 5,892 1,801 408,880 Commercial 49,479 85 1 49,393 Obligations of states and political subdivisions 73,362 - - 73,362 Home equity loans and lines of credit 43,962 114 - 43,848 Auto Loans 146,220 445 - 145,775 Other 2,682 17 - 2,665 Total $ 1,316,759 $ 11,870 $ 1,802 $ 1,303,087 The Company maintains a loan review system, which allows for a periodic review of our loan portfolio and the early identification of potential impaired 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 loan loss allowances are established for identified losses based on a review of such information. A loan evaluated for impairment is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. All loans identified as impaired are evaluated independently. The Company does not aggregate such loans for evaluation purposes. Impairment 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. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual consumer and residential mortgage loans for impairment disclosures, unless such loans are part of a larger relationship that is impaired or are classified as a troubled debt restructuring. A loan is considered to be a troubled debt restructuring (“TDR”) loan when the Company grants a concession to the borrower that it would not otherwise consider because of the borrower’s financial condition. Such concessions include the reduction of interest rates, forgiveness of principal or interest, or other modifications of interest rates that are less than the current market rate for new obligations with similar risk. TDR loans that are in compliance with their modified terms and that yield a market rate at the time of modification may be removed from TDR status after one year of performance. The following tables include the recorded investment and unpaid principal balances for impaired loans with the associated allowance amount, if applicable, excluding purchased impaired credit loans. Also presented are the average recorded investments in the impaired loans and the related amount of interest recognized during the time within the period that the impaired loans were impaired (in thousands). Recorded Investment Unpaid Principal Balance Associated Allowance Average Recorded Investment Interest Income Recognized September 30, 2019 With no specific allowance recorded: Real estate loans: Residential $ 3,935 $ 5,309 $ - $ 3,657 $ 5 Construction - - - - - Commercial 2,385 4,269 - 4,129 54 Commercial 354 475 - 285 1 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 400 465 - 224 - Auto loans 161 248 - 107 2 Other 15 22 - 13 - Subtotal 7,250 10,788 - 8,415 62 With an allowance recorded: Real estate loans: Residential 346 398 36 777 - Construction - - - - - Commercial 248 294 56 158 - Commercial 94 223 6 613 - Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit - - - 16 - Auto loans 422 426 144 220 - Other 16 17 6 1 - Subtotal 1,126 1,358 248 1,785 - Total: Real estate loans: Residential 4,281 5,707 36 4,434 5 Construction - - - - - Commercial 2,633 4,563 56 4,287 54 Commercial 448 698 6 898 1 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 400 465 - 240 - Auto loans 583 674 144 327 2 Other 31 39 6 14 - Total $ 8,376 $ 12,146 $ 248 $ 10,200 $ 62 Recorded Investment Unpaid Principal Balance Associated Allowance Average Recorded Investment Interest Income Recognized September 30, 2018 With no specific allowance recorded: Real estate loans: Residential $ 4,449 $ 6,176 $ - $ 4,192 $ 27 Construction - - - - - Commercial 5,892 6,790 - 6,432 279 Commercial 85 349 - 750 58 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 114 138 - 161 1 Auto loans 87 223 - 150 1 Other 17 25 - 27 - Subtotal 10,644 13,701 - 11,712 366 With an allowance recorded: Real estate loans: Residential 868 938 149 1,258 - Construction - - - - - Commercial - - - 13 - Commercial - - - - - Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit - - - 13 - Auto loans 358 375 164 201 - Other - - - - - Subtotal 1,226 1,313 313 1,485 - Total: Real estate loans: Residential 5,317 7,114 149 5,450 27 Construction - - - - - Commercial 5,892 6,790 - 6,445 279 Commercial 85 349 - 750 58 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 114 138 - 174 1 Auto loans 445 598 164 351 1 Other 17 25 - 27 - Total $ 11,870 $ 15,014 $ 313 $ 13,197 $ 366 The Company uses a ten-point internal risk-rating system to monitor the credit quality of the overall loan portfolio. The first six categories are considered not criticized and are aggregated as Pass-rated. 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 Commercial Loan Officers perform an annual review of all commercial relationships $1,000,000 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 Special Mention and Substandard categories that are evaluated for impairment are given separate consideration in the determination of the allowance. The following tables present the classes of the loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard, and Doubtful within the internal risk rating system as of September 30, 2019 and 2018 (in thousands): Pass Special Mention Substandard Doubtful Total September 30, 2019 Commercial real estate loans $ 461,701 $ 7,492 $ 11,454 $ - $ 480,647 Commercial 52,486 - 3,073 - 55,559 Obligations of states and political subdivisions 71,828 - - - 71,828 Total $ 586,015 $ 7,492 $ 14,527 $ - $ 608,034 Pass Special Mention Substandard Doubtful Total September 30, 2018 Commercial real estate loans $ 392,915 $ 8,960 $ 14,698 $ - $ 416,573 Commercial 48,137 8 1,334 - 49,479 Obligations of states and political subdivisions 73,362 - - - 73,362 Total $ 514,414 $ 8,968 $ 16,032 $ - $ 539,414 All other loans are underwritten and structured using standardized criteria and characteristics, primarily payment performance, and are normally risk rated and monitored collectively on a monthly basis. These are typically loans to individuals in the consumer categories and are delineated as either performing or nonperforming. For residential real estate loans, construction real estate loans, home equity loans and lines of credit, auto loans, and other loans, the Company evaluates credit quality based on the performance of the individual credits. The following tables present the recorded investment in the loan classes based on payment activity as of September 30, 2019 and 2018 (in thousands): Performing Nonperforming Purchased Credit Impaired Total September 30, 2019 Real estate loans: Residential $ 592,907 $ 4,607 $ - $ 597,514 Construction 5,672 - - 5,672 Home equity loans and lines of credit 44,534 622 - 45,156 Auto Loans 81,317 666 - 81,983 Other 2,883 41 - 2,924 Total $ 727,313 $ 5,936 $ - $ 733,249 Performing Nonperforming Purchased Credit Impaired Total September 30, 2018 Real estate loans: Residential $ 575,244 $ 5,317 $ - $ 580,561 Construction 3,920 - - 3,920 Home equity loans and lines of credit 43,746 216 43,962 Auto Loans 145,633 587 - 146,220 Other 2,664 18 - 2,682 Total $ 771,207 $ 6,138 $ - $ 777,345 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 table presents the classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans as of September 30, 2019 and 2018 (in thousands): 31-60 Days 61-90 Days Greater than 90 Days Past Due and Total Purchased Credit Total Current Past Due Past Due Accruing Non-accrual Past Due Accruing Non-accrual Loans September 30, 2019 Real estate loans: Residential $ 590,457 $ 2,187 $ 263 $ - $ 4,607 $ 7,057 $ - $ - $ 597,514 Construction 5,672 - - - - - - - 5,672 Commercial 476,644 236 - - 2,468 2,704 243 1,056 480,647 Commercial 54,899 20 37 - 603 660 - - 55,559 Obligations of states and political subdivisions 71,828 - - - - - - - 71,828 Home equity loans and lines of credit 44,319 47 168 - 622 837 - - 45,156 Auto loans 80,090 1,227 - - 666 1,893 - - 81,983 Other 2,883 - - - 41 41 - - 2,924 Total $ 1,326,792 $ 3,717 $ 468 $ - $ 9,007 $ 13,192 $ 243 $ 1,056 $ 1,341,283 31-60 Days 61-90 Days Greater than 90 Days Past Due and Total Purchased Credit Total Current Past Due Past Due Accruing Non-accrual Past Due Accruing Non-accrual Loans September 30, 2018 Real estate loans: Residential $ 572,236 $ 2,088 $ 920 $ - $ 5,317 $ 8,325 $ - $ - $ 580,561 Construction 3,920 - - - - - - - 3,920 Commercial 412,636 185 - - 1,951 2,136 255 1,546 416,573 Commercial 48,567 25 11 - 875 911 - 1 49,479 Obligations of states and political subdivisions 73,362 - - - - - - - 73,362 Home equity loans and lines of credit 43,716 30 - - 216 246 - - 43,962 Auto loans 144,140 1,473 20 - 587 2,080 - - 146,220 Other 2,647 17 - - 18 35 - - 2,682 Total $ 1,301,224 $ 3,818 $ 951 $ - $ 8,964 $ 13,733 $ 255 $ 1,547 $ 1,316,759 The allowance for loan losses (“ALL”) is maintained at a level necessary to absorb loan losses that are both probable and reasonably estimable. Management, in determining the allowance for loan losses, considers the losses inherent in its loan portfolio and changes in the nature and volume of loan activities, along with the general economic and real estate market conditions. The allowance for loan losses consists of three elements: (1) an allocated allowance, which comprises allowances established on specific loans and class allowances based on historical loss experience and current trends, (2) an allocated allowance based on general economic conditions and other risk factors in our markets and portfolios, and (3) an unallocated allowance not to exceed 10% of total reserves which acts as a contingency against unforeseen future events which may negatively impact the Company’s loan portfolio. We maintain a loan review system, which allows for a periodic review of our loan portfolio and the early identification of potential impaired 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. General loan loss allowances are based upon a combination of factors including, but not limited to, actual loan loss experience, composition of the loan portfolio, current economic conditions, management’s judgment and losses which are probable and reasonably estimable. The allowance is increased through provisions charged against current earnings and recoveries of previously charged-off loans. Loans that are determined to be uncollectible are charged against the allowance. While management uses available information to recognize probable and reasonably estimable loan losses, future loss provisions may be necessary, based on changing economic conditions. Payments received on impaired loans generally are either applied against principal or reported as interest income, according to management’s judgment as to the collectability of principal. The allowance for loan losses as of September 30, 2019, is maintained at a level that represents management’s best estimate of losses inherent in the loan portfolio, and such losses were both probable and reasonably estimable. In addition, the FDIC and the Pennsylvania Department of Banking, as an integral part of their examination process, have periodically reviewed the Company’s allowance for loan losses. The banking regulators may require that the Company recognize additions to the ALL based on their analysis and review of information available to it at the time of their 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 ALL. When information confirms all or part of specific loans to be uncollectible, these amounts are promptly charged-off against the ALL. The following table summarizes the primary segments of the ALL, segregated into the amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment as of September 30, 2019 and 2018 (in thousands): Real Estate Loans Obligations of States and Political Home Loans and Lines of Residential Construction Commercial Commercial Subdivisions Credit Auto Other Unallocated Total ALL balance at September 30, 2017 $ 3,878 $ 23 $ 1,758 $ 987 $ 248 $ 470 $ 1,836 $ 21 $ 144 $ 9,365 Charge-offs (335 ) - (54 ) (151 ) - (68 ) (1,833 ) (21 ) - (2,462 ) Recoveries 12 - 49 10 - 54 655 5 - 785 Provision 50 12 1,705 616 75 (160 ) 1,201 18 483 4,000 ALL balance at September 30, 2018 $ 3,605 $ 35 $ 3,458 $ 1,462 $ 323 $ 296 $ 1,859 $ 23 $ 627 $ 11,688 Individually evaluated for impairment $ 149 $ - $ - $ - $ - $ - $ 164 $ - $ - $ 313 Collectively evaluated for impairment 3,456 35 3,458 1,462 323 296 1,695 23 627 11,375 ALL balance at September 30, 2018 $ 3,605 $ 35 $ 3,458 $ 1,462 $ 323 $ 296 $ 1,859 $ 23 $ 627 $ 11,688 ALL balance at September 30, 2018 $ 3,605 $ 35 $ 3,458 $ 1,462 $ 323 $ 296 $ 1,859 $ 23 $ 627 $ 11,688 Charge-offs (330 ) - (185 ) (28 ) - (62 ) (1,233 ) (13 ) - (1,851 ) Recoveries 113 - 60 3 - 7 518 16 - 717 Provision 855 18 473 433 20 88 240 2 (53 ) 2,076 ALL balance at September 30, 2019 $ 4,243 $ 53 $ 3,806 $ 1,870 $ 343 $ 329 $ 1,384 $ 28 $ 574 $ 12,630 Individually evaluated for impairment $ 36 $ - $ 56 $ 6 $ - $ - $ 144 $ 6 $ - $ 248 Collectively evaluated for impairment 4,207 53 3,750 1,864 343 329 1,240 22 574 12,382 ALL balance at September 30, 2019 $ 4,243 $ 53 $ 3,806 $ 1,870 $ 343 $ 329 $ 1,384 $ 28 $ 574 $ 12,630 The allowance for loan losses is based on estimates, and actual losses will vary from current estimates. Management believes that the granularity of the homogeneous pools and the related historical loss ratios and other qualitative factors, as well as the consistency in the application of assumptions, result in an ALL that is representative of the risk found in the components of the portfolio at any given date. During the year ended September 30, 2019 the Company recorded provision for loan losses for the residential real estate, construction loan, commercial real estate, commercial, obligations of states and political subdivisions, home equity loans and lines of credit, auto loan and other 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 not recorded for any loan segments. The provision for auto loans declined from $1.2 million to $240,000 due to declining balances offsetting net (of recoveries) charge off activity. During the year ended September 30, 2018 the Company recorded provision expense for the residential real estate, construction loans, commercial real estate, commercial, obligations of states and political subdivisions, auto and other loan 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 for loan losses were recorded for loan loss for the home equity loans and lines of credit segment. The following is a summary of troubled debt restructurings granted during the periods indicated (dollars in thousands). For the Year Ended September 30, 2019 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings Real estate loans: Residential 3 $ 259 $ 264 Construction - - - Commercial 2 159 159 Commercial - - - Obligations of states and political subdivisions - - - Home equity loans and lines of credit - - - Auto loans 2 36 36 Other - - - Total 7 $ 454 $ 459 For the Year Ended September 30, 2018 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings Real estate loans: Residential 3 $ 446 $ 446 Construction - - - Commercial 2 123 123 Commercial - - - Obligations of states and political subdivisions - - - Home equity loans and lines of credit - - - Auto loans 4 35 35 Other - - - Total 9 $ 604 $ 604 Of the seven new troubled debt restructurings granted for the year ended September 30, 2019, four loans totaling $345,000 were granted term and rate concessions and two loans totaling $29,000 were granted term concessions and one loan totaling $80,000 was granted an interest rate concession. Of the nine new troubled debt restructurings granted for the year ended September 30, 2018, six loans totaling $278,000 were granted term and rate concessions, three loans totaling $326,000 were granted term concessions. For the year ended September 30, 2019 there was no loan modifications classified as troubled debt restructurings that subsequently defaulted within one year of modification. For the year ended September 30, 2018 there was one loan for $76,000 classified as troubled debt restructurings that subsequently defaulted within one year of modification. Foreclosed assets acquired in settlement of loans are carried at fair value, less estimated costs to sell. As of September 30, 2019, the Company has initiated formal foreclosure proceedings on $2.0 million of consumer residential mortgages which have not yet been transferred into foreclosed assets. As of September 30, 2019, included within the foreclosed assets is $225,000 of consumer residential mortgages that were foreclosed on or received via a deed in lieu of foreclosure transaction prior to the year end.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Sep. 30, 2019
Property Plant And Equipment [Abstract]
Premises and Equipment	5. PREMISES AND EQUIPMENT Premises and equipment consist of the following (in thousands): 2019 2018 Land and land improvements $ 6,075 $ 6,044 Buildings and leasehold improvements 16,381 16,207 Furniture, fixtures, and equipment 12,098 11,687 Construction in process 18 - 34,572 33,938 Less accumulated depreciation (20,237 ) (19,337 ) Total $ 14,335 $ 14,601 Depreciation expense amounted to $897,000 and $694,000 for the years ended September 30, 2019 and 2018 respectively.

Deposits

Deposits	12 Months Ended
	Sep. 30, 2019
Banking And Thrift [Abstract]
Deposits	6. DEPOSITS Deposits and their respective weighted-average interest rates consist of the following major classifications (dollars in thousands): 2019 2018 Weighted- Average Interest Rate Amount Weighted- Average Interest Rate Amount Noninterest-bearing demand accounts - % $ 175,932 - % $ 158,340 Interest bearing demand accounts 0.38 224,673 0.39 221,327 Money market accounts 1.28 364,635 0.89 296,078 Savings and club accounts 0.05 135,012 0.05 135,862 Certificates of deposit 1.90 442,578 1.76 525,248 Total 1.04 % $ 1,342,830 0.96 % $ 1,336,855 2019 2018 Weighted- Average Interest Rate Amount Weighted- Average Interest Rate Amount Certificates of deposit: 0.00 - 2.00% 1.64 % $ 283,988 1.59 % $ 395,583 2.01 - 4.00% 2.37 158,590 2.29 129,665 Total 1.90 % $ 442,578 1.76 % $ 525,248 At September 30, 2019 scheduled maturities of certificates of deposit are as follows (in thousands): 2020 $ 362,762 2021 33,758 2022 29,286 2023 7,895 2024 8,877 Total $ 442,578 Brokered deposits totaled $158,550,000 and $168,694,000 at September 30, 2019 and 2018, respectively. The aggregate amount of certificates of deposit with a minimum denomination of $250,000 were $38,629,000 and $66,279,000 at September 30, 2019 and 2018, respectively. The scheduled maturities of certificates of deposit in denominations of $250,000 or more as of September 30, 2019, are as follows (in thousands): Within three months $ 4,742 Three through six months 10,692 Six through twelve months 14,075 Over twelve months 9,120 Total $ 38,629

Short-Term Borrowings

Short-Term Borrowings	12 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Short-Term Borrowings	7. SHORT-TERM BORROWINGS As of September 30, 2019, and 2018, the Company had $107,701,000 and $179,773,000 of short-term borrowings, respectively, of which $17.7 million in 2019 and $64.8 million in 2018 were advances on a $150,000,000 line of credit with the FHLB. All borrowings from the FHLB are secured by a blanket lien on qualified collateral, defined principally as investment securities and mortgage loans that are owned by the Company free and clear of any liens or encumbrances. At September 30, 2019, the Company had a borrowing limit of approximately $659.7 million, with a variable rate of interest, based on the FHLB’s cost of funds. The following table sets forth information concerning short-term borrowings (in thousands): 2019 2018 Balance at year-end $ 107,701 $ 179,773 Maximum amount outstanding at any month-end 239,824 260,797 Average balance outstanding during the year 165,730 210,050 Weighted-average interest rate: As of year-end 2.35 % 2.31 % Paid during the year 2.10 % 1.86 % Average balances outstanding during the year represent daily average balances, and average interest rates represent interest expenses divided by the related average balance.

Other Borrowings

Other Borrowings	12 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Other Borrowings	8. OTHER BORROWINGS The following table presents contractual maturities of FHLB long-term advances (in thousands): Maturity Range Weighted- Average Stated Interest Rate Ranged Description From To Interest Rate From To 2019 2018 Fixed rate 10/22/2019 9/30/2024 1.79 1.33 2.85 $ 24,956 $ 74,827 Mid-term 11/29/2019 9/30/2022 2.48 1.66 2.87 115,625 43,896 Total $ 140,581 $ 118,723 Maturities of FHLB long-term advances are summarized as follows (in thousands): Year Ending September 30, Amount Weighted- Average Rate 2020 $ 60,846 2.38 % 2021 63,125 2.43 2022 9,500 2.20 2023 2,500 1.71 2024 4,610 1.77 Total 140,581 1.63 The FHLB long-term advances are secured by qualifying assets of the Bank, which include the FHLB stock, securities, and first-mortgage loans.

Income Taxes

Income Taxes	12 Months Ended
	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	9. INCOME TAXES The provision for income taxes consists of (in thousands): 2019 2018 Current: Federal $ 1,386 $ 1,086 State 3 6 Total current taxes 1,389 1,092 Deferred income tax benefit 1,026 890 Change in corporate tax rate — 3,682 Total income tax provision $ 2,415 $ 5,664 The tax effects of deductible and taxable temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows (in thousands): 2019 2018 Deferred tax assets: Allowance for loan losses $ 2,652 $ 2,455 Adjustment to record funded status of pension plan 406 127 Investment losses subject to Section 382 limitation 2,203 2,510 Net unrealized loss on securities — 3,022 Net unrealized loss on derivatives 149 — Deferred compensation 274 290 Other real estate owned 148 152 Nonaccrual interest 110 163 Employee stock ownership plan 526 491 Alternative minimum tax — 604 Other 1,063 1,308 Total gross deferred tax assets 7,531 11,122 Deferred tax liabilities: Pension plan 775 675 Mortgage servicing rights 38 44 Premises and equipment 97 45 Net unrealized gain on securities 214 — Net unrealized gain on derivatives — 515 Low income housing tax credits 837 684 Other 448 718 Total gross deferred tax liabilities 2,409 2,681 Net deferred tax assets $ 5,122 $ 8,441 The Company establishes a valuation allowance for deferred tax assets when management believes that the deferred tax assets are not likely to be realized either through a carryback to taxable income in prior years, future reversals of existing taxable temporary differences, and, to a lesser extent, future taxable income. Accounting principles prescribe a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. There is currently no liability for uncertain tax positions and no known unrecognized tax benefits. The Company recognizes, when applicable, interest and penalties related to unrecognized tax benefits in the provision for income taxes in the Consolidated Statement of Income. The Company’s federal and state income tax returns for taxable years through 2015 have been closed for purposes of examination by the Internal Revenue Service and the Pennsylvania Department of Revenue. The reconciliation of the federal statutory rate and the Company’s effective income tax rate is as follows (dollars in thousands): 2019 2018 Amount % of Pretax Income Amount % of Pretax Income Provision at statutory rate $ 3,158 21.0 % $ 2,961 24.3 % Income from bank-owned life insurance (204 ) (1.4 ) (243 ) (2.0 ) Tax-exempt income (406 ) (2.7 ) (421 ) (3.5 ) Low-income housing credits (196 ) (1.3 ) (167 ) (1.4 ) Tax rate change — — 3,682 30.2 Other, net 63 0.5 (148 ) (1.2 ) Actual tax expense and effective rate $ 2,415 16.1 % $ 5,664 46.4 % The Tax Cuts and Jobs Act, enacted on December 22, 2017, lowered the federal income tax rate from 35% to 21% effective January 1, 2018. As a result, the carrying value of net deferred tax assets was reduced, which increased income tax expense by $3,682,000. The Bank is subject to the Pennsylvania Mutual Thrift Institutions Tax that is calculated at 11.5 percent of earnings based on U.S. generally accepted accounting principles with certain adjustments.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	12 Months Ended
	Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	10. COMMITMENTS AND CONTINGENT LIABILITIES In the normal course of business, management makes various commitments that are not reflected in the consolidated financial statements. These commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Consolidated Balance Sheet. The Company’s exposure to credit loss in the event of nonperformance by the other parties to the financial instruments is represented by the contractual amounts as disclosed. Losses, if any, are charged to the allowance for loan losses. The Company minimizes its exposure to credit loss under these commitments by subjecting them to credit approval and review procedures and collateral requirements, as deemed necessary, in compliance with lending policy guidelines. The off-balance sheet commitments consist of the following (in thousands): 2019 2018 Commitments to extend credit $ 80,476 $ 112,037 Standby letters of credit 10,703 5,329 Unfunded lines of credit 106,704 96,618 The commitments outstanding at September 30, 2019, contractually mature in less than one year. The instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Consolidated Balance Sheet. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The amount of collateral obtained, as deemed necessary, is based upon management’s credit evaluation in compliance with the lending policy guidelines. Since many of the credit line commitments are expected to expire without being fully drawn upon, the total contractual amounts do not necessarily represent future funding requirements. Standby letters of credit and financial guarantees represent conditional commitments issued to guarantee performance of a customer to a third party. The coverage period for these instruments is typically a one-year period with renewal option subject to prior approval by management. Fees earned from the issuance of these letters are recognized over the coverage period. For secured letters of credit, the collateral is typically Company deposit instruments. The Company is required to maintain a reserve balance with certain third party providers. At September 30, 2019 the reserve balance was $1.2 million. 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 Bank was named as a defendant in an action commenced on December 8, 2016 by one plaintiff who will also seek to pursue this action as a class action on behalf of the entire class of people similarly situated. The plaintiff alleges that a bank previously acquired by ESSA Bancorp 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 Bank’s 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 Bank and remanded the case back to the district court in order to continue the litigation. The litigation is now proceeding before the district court. The Bank will continue to vigorously defend against such allegations. To the extent that pending or threatened litigation could result in exposure to the Bank, the amount of such exposure is not currently estimable.

Lease Commitments and Total Ren

Lease Commitments and Total Rental Expense	12 Months Ended
	Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Lease Commitments and Total Rental Expense	11. LEASE COMMITMENTS AND TOTAL RENTAL EXPENSE The Company leases various branch locations and other offices under long-term operating leases. Future minimum lease payments by year and in the aggregate, under noncancellable operating leases, and not including common area maintenance charges, with initial or remaining terms of one year or more, consisted of the following at September 30, 2019 (in thousands): 2020 $ 852 2021 757 2022 674 2023 594 2024 460 2025 and beyond 935 Total $ 4,272 The total rental expenses for the above leases for both years ended September 30, 2019 and 2018, was $1.3 million. The Company also operates four offices that currently do not have long-term operating leases.

Employee Benefits

Employee Benefits	12 Months Ended
	Sep. 30, 2019
Postemployment Benefits [Abstract]
Employee Benefits	12. EMPLOYEE BENEFITS Employee Stock Ownership Plan (“ESOP”) The Company created an ESOP for the benefit of employees who meet the eligibility requirements, which include having completed one year of service with the Company or its subsidiary and attained age 21. The ESOP trust acquired 1,358,472 shares of the Company’s stock from proceeds from a loan with the Company. The Company makes cash contributions to the ESOP on an annual basis sufficient to enable the ESOP to make the required loan payments. Cash dividends paid on allocated shares are distributed to participants and cash dividends paid on unallocated shares are used to repay the outstanding debt of the ESOP. The ESOP trust’s outstanding loan bears interest at prime, adjustable each January 1 st As the debt is repaid, shares are released from the collateral and allocated to qualified employees based on the proportion of payments made during the year to the remaining amount of payments due on the loan through maturity. Accordingly, the shares pledged as collateral are reported as unallocated common stock held by the ESOP shares in the Consolidated Balance Sheet. As shares are released from collateral, the Company reports compensation expense equal to the current market price of the shares, and the shares become outstanding for earnings-per-share computations. The Company recognized ESOP expense of $700,000 and $725,000, for the years ended September 30, 2019 and 2018, respectively. The following table presents the components of the ESOP shares: 2019 2018 Allocated shares 348,523 345,455 Shares committed to be released 33,962 33,962 Unreleased shares 781,120 826,403 Total ESOP shares 1,163,605 1,205,820 Fair value of unreleased shares (in thousands) $ 12,826 $ 13,437 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 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 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 March 3, 2016, 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”). 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, incentive stock options and non-qualified stock options. The Company classifies share-based compensation for employees and outside directors within “Compensation and employee benefits” in the Consolidated Statement of Income to correspond with the same line item as compensation paid. Restricted stock shares outstanding at September 30, 2019 vest over periods ranging from 1 year to 3 years. 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. During the years ended September 30, 2019 and 2018, the Company recorded $350,000 and $336,000 of share-based compensation expense consisting of restricted stock expense. Expected future compensation expense relating to the restricted shares outstanding, at September 30, 2019 is $561,000 over the remaining vesting period of 3.08 years. The following is a summary of the status of the Company’s nonvested restricted stock as of September 30, 2019, and changes therein during the year then ended: Number of Restricted Weighted- Average Grant Date Fair Value Nonvested at September 30, 2018 35,072 $ 15.37 Granted 37,236 16.23 Vested (32,225 ) 16.18 Forfeited (5,120 ) 15.87 Nonvested at September 30, 2019 34,963 $ 16.13 Defined Benefit Plan The Bank sponsors a trusteed, noncontributory defined benefit pension plan covering substantially all employees and officers. The plan calls for benefits to be paid to eligible employees at retirement based primarily upon years of service with the Bank and compensation rates near retirement. The Bank’s funding policy is to make annual contributions, if needed, based upon the funding formula developed by the plan’s actuary. In February 2017, the Bank amended the defined benefit pension plan to provide that no additional participants would enter the plan and no additional benefits would accrue beyond February 28, 2017. The following table sets forth the change in plan assets and benefit obligation at September 30 (in thousands): 2019 2018 Change in benefit projected obligation: Projected benefit obligation at beginning of year $ 17,111 $ 18,598 Service cost - - Interest cost 693 698 Actuarial (gains) losses 807 (204 ) Curtailments - - Benefits paid (974 ) (1,981 ) Projected benefit obligation at end of year 17,637 17,111 Change in plan assets: Fair value of plan assets at beginning of year 19,720 20,363 Actual return on plan assets 649 1,338 Contributions - - Benefits paid (974 ) (1,981 ) Fair value of plan assets at end of year 19,395 19,720 Funded status $ 1,758 $ 2,609 Amounts not yet recognized as a component of net periodic pension cost (in thousands): 2019 2018 Amounts recognized in accumulated other comprehensive loss consist of: Net loss $ 1,933 $ 604 The accumulated benefit obligation for the defined benefit pension plan was $17,637,000 and $17,111,000 at September 30, 2019 and 2018, respectively. The following table comprises the components of net periodic benefit cost for the years ended September 30 (in thousands): 2019 2018 Service cost $ - $ - Interest cost 693 698 Expected return on plan assets (1,171 ) (1,193 ) Amortization of unrecognized loss - - Net periodic (benefit) cost $ (478 ) $ (495 ) The estimated net loss for the defined benefit pension plan that will be amortized from accumulated other comprehensive loss into net periodic benefit cost over the next fiscal year is $0. Weighted-average assumptions used to determine benefit obligations: 2019 2018 Discount rate 3.00 % 4.10 % Rate of compensation increase N/A N/A Weighted-average assumptions used to determine net periodic benefit cost for the years ended: 2019 2018 Discount rate 4.10 % 3.85 % Expected long-term return on plan assets 6.00 % 6.00 Rate of compensation increase N/A N/A The expected long-term rate of return was estimated using market benchmarks by which the plan assets would outperform the market in the future, based on historical experience adjusted for changes in asset allocation and expectations for overall lower future returns on similar investments compared with past periods. Plan Assets The following tables set forth by level, within the fair value hierarchy, the plan’s financial assets at fair value as of September 30, 2019 and 2018 (in thousands): September 30, 2019 Level I Level II Level III Total Assets: Investment in collective trusts Fixed income $ - $ 7,736 $ - $ 7,736 Equity - 11,620 - 11,620 Investment in short-term investments - 39 - 39 Total assets at fair value $ - $ 19,395 $ - $ 19,395 September 30, 2018 Level I Level II Level III Total Assets: Investment in collective trusts Fixed income $ - $ 7,916 $ - $ 7,916 Equity - 11,789 - 11,789 Investment in short-term investments - 15 - 15 Total assets at fair value $ - $ 19,720 $ - $ 19,720 Investments in collective trusts and short-term investments are valued at the net asset value of shares held by the plan. The Bank’s defined benefit pension plan weighted-average asset allocations at September 30, 2019 and 2018 by asset category, are as follows: September 30, Asset Category 2019 2018 Fixed income securities 39.9 % 40.1 % Equity securities 59.9 59.8 Other 0.2 0.1 Total 100.0 % 100.0 % The Bank believes that the plan’s risk and liquidity position are, in large part, a function of the asset class mix. The Bank desires to utilize a portfolio mix that results in a balanced investment strategy. Three asset classes are outlined, as above. The target allocations of these classes are as follows: equity securities, 65 percent, and cash and fixed income securities, 35 percent. Cash Flows The Bank does not expect to make any contributions to its pension plan in 2020. Estimated future benefit payments, which reflect expected future service, as appropriate, are as follows (in thousands): 2020 $ 2,707 2021 2,162 2022 571 2023 742 2024 633 2025-2029 5,370 401(k) Plan The Bank also has a savings plan qualified under Section 401(k) of the Internal Revenue Code, which covers substantially all employees over 21 years of age. Employees can contribute to the plan, but are not required to. Employer contributions were reinstated in March 2017. Employer contributions are allocated based on employee contribution levels. The expense related to the plan for the year ended September 30, 2019 and 2018 was $449,000 and $464,000, respectively. Supplemental Executive Retirement Plan The Bank maintains a salary continuation agreement with certain executives of the Bank, which provides for benefits upon retirement to be paid to the executive for no less than 192 months, unless the executive elects to receive the present value of the payments as a lump sum. The Bank has recorded accruals of $2.2 million and $2.1 million at September 30, 2019 and 2018, respectively which represent the estimated present value (using a discount rate of 6.00 percent) of the benefits earned under this agreement. There was $114,000 and $477,000 in expense related to the supplemental executive retirement plan for the years ended September 30, 2019 and 2018, respectively.

Regulatory Restrictions

Regulatory Restrictions	12 Months Ended
	Sep. 30, 2019
Regulatory Capital Requirements [Abstract]
Regulatory Restrictions	13. REGULATORY RESTRICTIONS Reserve Requirements The Bank is required to maintain reserve funds in cash or in deposit with the Federal Reserve Bank. The required reserve at September 30, 2019 and 2018, was $21,390,000 and $17,348,000, respectively. Dividend Restrictions Federal banking laws, regulations, and policies limit the Bank’s ability to pay dividends to the Company. Dividends may be declared and paid by the Bank only out of net earnings for the then current year. A dividend may not be declared or paid if it would impair the general reserves of the Bank as required to be maintained under the Pennsylvania Banking.

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Sep. 30, 2019
Banking And Thrift [Abstract]
Regulatory Capital Requirements	14. REGULATORY CAPITAL REQUIREMENTS Federal regulations require the Bank and the Company to maintain certain minimum amounts of capital. Specifically, the Bank and the Company are required to maintain certain minimum dollar amounts and ratios of Total and Tier 1 capital to risk-weighted assets, of Tier 1 capital to average total assets, and common equity Tier 1 capital to risk-weighted assets. In addition to the capital requirements, the Federal Deposit Insurance Corporation Improvement Act (“FDICIA”) established five capital categories ranging from “well capitalized” to “critically undercapitalized.” Should any institution fail to meet the requirements to be considered “adequately capitalized,” it would become subject to a series of increasingly restrictive regulatory actions. Management believes that, as of September 30, 2019, the Bank met all capital adequacy requirements to which it is subject. In July of 2013 the respective U.S. federal banking agencies issued final rules implementing Basel III and the Dodd-Frank Act capital requirements to be fully-phased in on a global basis on January 1, 2019. The new regulations established a new tangible common equity capital requirement, increase the minimum requirement for the current Tier 1 risk-weighted asset (“RWA”) ratio, phase out certain kinds of tangibles treated as capital and certain types of instruments and change the risk weightings of certain assets used to determine requirement capital ratios. Provisions of the Dodd-Frank Act generally require these capital rules to apply to bank holding companies and their subsidiaries. The new common equity Tier 1 capital component requires capital of the highest quality-predominantly composed of retained earnings and common stock instruments. For community banks, such as ESSA Bank & Trust, a common equity Tier 1 capital ratio of 4.5% became effective on January 1, 2015. The new capital rules also increased the current minimum of Tier 1 capital ratio from 4.0% to 6.0% beginning on January 1, 2015. In addition, in order to make capital distributions and pay discretionary bonuses to executive officers without restriction, an institution must also maintain greater than 2.5% in common equity attributable to a capital conservation buffer to be phased in from January 1, 2016 until January 1, 2019. The new rules also increase the risk weights for several categories of assets, including an increase from 100% to 150% for certain acquisition, development and construction loans and more than 90-day past due exposures. The new capital rules maintain the general structure of the prompt corrective action rules, but incorporate the new common equity Tier 1 capital requirement and the increased Tier 1 RWA requirement into the prompt corrective action framework. Bank holding companies are generally subject to statutory capital requirements, which were implemented by certain of the new capital regulations described above that became effective on January 1, 2015. However, the Small Banking Holding Company Policy Statement exempts certain small bank holding companies like the Company from those requirements provided that they meet certain conditions. As of September 30, 2019, and 2018, the FDIC categorized the Bank and the Federal Reserve categorized the Company as well capitalized under the regulatory framework for prompt corrective action. To be classified as a well-capitalized financial institution, Total risk-based, Tier 1 risk-based, common equity Tier 1 capital and Tier 1 leverage capital must be at least 10 percent, 8 percent, 6.5 percent, and 5 percent, respectively. There have been no conditions or events since the notification that management believes have changed the Bank’s or the Company’s category. The Bank’s actual capital ratios are presented in the following table (dollars in thousands): 2019 2018 Amount Ratio Amount Ratio Total capital (to risk-weighted assets) Actual $ 184,214 14.0 % $ 180,203 13.6 % For capital adequacy purposes 105,281 8.0 105,926 8.0 To be well capitalized 131,602 10.0 132,407 10.0 Tier 1 capital (to risk-weighted assets) Actual $ 171,532 13.0 % $ 168,161 12.7 % For capital adequacy purposes 78,961 6.0 79,444 6.0 To be well capitalized 105,281 8.0 105,926 8.0 Common equity tier 1 capital (to risk-weighted assets) Actual $ 171,532 13.0 % $ 168,161 12.7 % For capital adequacy purposes 59,221 4.5 59,583 4.5 To be well capitalized 85,541 6.5 86,065 6.5 Tier 1 capital (to adjusted assets) Actual $ 171,532 9.7 % $ 168,161 9.2 % For capital adequacy purposes 70,979 4.0 72,456 4.0 To be well capitalized 88,724 5.0 90,570 5.0 The Company’s ratios do not differ significantly from the Bank’s ratios presented above.

Fair Value

Fair Value	12 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value	15. 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 to 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 required to be measured and reported at fair value on a recurring basis on the Consolidated Balance Sheet as of September 30, 2019 and September 30, 2018 by level within the fair value hierarchy (in thousands). Reoccurring Fair Value Measurements at Reporting Date September 30, 2019 Level I Level II Level III Total Assets: Investment securities available for sale: Mortgage-backed securities $ - $ 226,440 $ - $ 226,440 Obligations of states and political subdivisions - 20,212 - 20,212 U.S. government agency securities - 6,688 - 6,688 Corporate obligations - 35,342 7,792 43,134 Other debt securities - 16,919 - 16,919 Total debt securities - 305,601 7,792 313,393 Equity securities - financial services 25 - - 25 Derivatives and hedging activities - 303 - 303 Liabilities: Derivatives and hedging activities - 1,011 - 1,011 September 30, 2018 Level I Level II Level III Total Assets: Investment securities available for sale: Mortgage-backed securities $ - $ 258,123 $ - $ 258,123 Obligations of states and political subdivisions - 40,949 - 40,949 U.S. government agency securities - 5,558 - 5,558 Corporate obligations - 39,677 7,738 47,415 Other debt securities - 19,373 - 19,373 Equity securities - financial services 20 - - 20 Total securities 20 363,680 7,738 371,438 Derivatives and hedging activities - 2,452 - 2,452 The following tables present a summary of changes in the fair value of the Company’s Level III investments for years ended September 30, 2019 and 2018 (in thousands). Fair Value Measurement Using Significant Unobservable Inputs (Level III) September 30, 2019 September 30, 2018 Beginning balance $ 7,738 $ 7,224 Purchases, sales, issuances, settlements, net - 500 Total unrealized gain: Included in earnings - - Included in other comprehensive income 54 14 Transfers into Level III - - Transfers out of Level III - - $ 7,792 $ 7,738 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 September 30, 2019 and September 30, 2018 by level within the fair value hierarchy: 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 III Fair Value Measurements Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted September 30, 2019 Impaired loans $ 8,128 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 35% (20.3%) Foreclosed real estate owned 240 Appraisal of collateral (1) Appraisal adjustments (2) 20% to 35% (26.6%) September 30, 2018 Impaired loans $ 11,557 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 35% (25.3%) Foreclosed real estate owned 1,141 Appraisal of collateral (1) Appraisal adjustments (2) 20% to 46% (23.7%) (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. Impaired 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 loan losses is allocated to the loan. At September 30, 2019, 138 impaired loans with a carrying value of $8.4 million were reduced by specific valuation allowance totaling $248,000 resulting in a net fair value of $8.1 million based on Level 3 inputs. At September 30, 2018, 133 impaired loans with a carrying value of $11.9 million were reduced by a specific valuation totaling $313,000 resulting in a net fair value of $11.6 million based on Level 3 inputs. Investment Securities Available for Sale The fair value of securities available for sale are determined by obtaining quoted market prices on nationally recognized securities exchanges (Level 1), or matrix pricing (Level 2), which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted market prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted prices. For certain securities which are not traded in active markets or are subject to transfer restrictions, valuations are adjusted to reflect illiquidity and/or non-transferability, and such adjustments are generally based on available market evidence (Level 3). In the absence of such evidence, management’s best estimate is used. Management’s best estimate consists of both internal and external support on certain Level 3 investments. Internal cash flow models using a present value formula that includes assumptions market participants would use along with indicative exit pricing obtained from broker/dealers (where available) are used to support fair values of certain Level 3 investments, if applicable. Equity Securities The fair value of equity securities are determined by obtaining quoted market prices on nationally recognized securities exchanges (Level 1). Impaired Loans The Company has measured impairment on impaired loans generally based on the fair value of the loan’s collateral. Evaluating impaired loan collateral is based on Level II inputs utilizing outside appraisals. Those impaired loans for which management incorporates significant adjustments for sales costs and other discount assumptions regarding market conditions are considered Level III fair values. The fair value consists of the loan balances of $8.4 million less their valuation allowances of $248,000 at September 30, 2019. The fair value consists of the loan balances of $11.9 million less their valuation allowances of $313,000 at September 30, 2018. Foreclosed Real Estate Owned Foreclosed real estate owned 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 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. Derivatives 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. The fair value of the swap asset and liability is based on an external derivative model using data inputs as of the valuation date and are classified Level 2. Assets and Liabilities not Required to be Measured and Reported at Fair Value The methods and assumptions used by the Company in estimating fair values of financial instruments at September 30, 2019 is in accordance with ASC Topic 825, Financial Instruments September 30, 2019 Carrying Value Level I Level II Level III Total Fair Value Financial assets: Cash and cash equivalents $ 52,242 $ 52,242 $ - $ - $ 52,242 Loans receivable, net 1,328,653 - - 1,313,231 1,313,231 Accrued interest receivable 6,225 6,225 - - 6,225 Regulatory stock 11,579 11,579 - - 11,579 Mortgage servicing rights 177 - - 241 241 Bank-owned life insurance 39,601 39,601 - - 39,601 Financial liabilities: Deposits $ 1,342,830 $ 900,252 $ - $ 443,063 $ 1,343,315 Short-term borrowings 107,701 107,701 - - 107,701 Other borrowings 140,581 - - 141,427 141,427 Advances by borrowers for taxes and insurance 6,700 6,700 - - 6,700 Accrued interest payable 1,384 1,384 - - 1,384 September 30, 2018 Carrying Value Level I Level II Level III Total Fair Value Financial assets: Cash and cash equivalents $ 43,539 $ 43,539 $ - $ - $ 43,539 Certificates of deposit 500 - - 505 505 Loans receivable, net 1,305,071 - - 1,269,127 1,269,127 Accrued interest receivable 6,640 6,640 - - 6,640 Regulatory stock 12,973 12,973 - - 12,973 Mortgage servicing rights 206 - - 340 340 Bank-owned life insurance 38,630 38,630 - - 38,630 Financial liabilities: Deposits $ 1,336,855 $ 811,607 $ - $ 520,861 $ 1,332,468 Short-term borrowings 179,773 179,773 - - 179,773 Other borrowings 118,723 - - 117,920 117,920 Advances by borrowers for taxes and insurance 6,826 6,826 - - 6,826 Accrued interest payable 1,369 1,369 - - 1,369 Financial instruments are defined as cash, evidence of an ownership interest in an entity, or a contract which creates an obligation or right to receive or deliver cash or another financial instrument from/to a second entity on potentially favorable or unfavorable terms. Fair value is defined as the amount at which a financial instrument could be exchanged in a current transaction between willing parties other than in a forced or liquidation sale. If a quoted market price is available for a financial instrument, the fair value would be calculated based upon the market price per trading unit of the instrument. If no readily available market exists, the fair value for financial instruments should be based upon management’s judgment regarding current economic conditions, interest rate risk, expected cash flows, future estimated losses, and other factors as determined through various option pricing formulas or simulation modeling. As many of these assumptions result from judgments made by management based upon estimates which are inherently uncertain, the resulting values may not be indicative of the amount realizable in the sale of a particular financial instrument. In addition, changes in the assumptions on which the values are based may have a significant impact on the resulting estimated values. As certain assets and liabilities, such as deferred tax assets, premises and equipment, and many other operational elements of the Company, are not considered financial instruments but have value, this fair value of financial instruments would not represent the full market value of the Company. The Company employed simulation modeling in determining the fair value of financial instruments for which quoted market prices were not available based upon the following assumptions: Cash and Cash Equivalents, Accrued Interest Receivable, Short-Term Borrowings, Advances by Borrowers for Taxes and Insurance, and Accrued Interest Payable The fair value approximates the current book value. Bank-Owned Life Insurance The fair value is equal to the cash surrender value of the bank-owned life insurance. Certificates of Deposit, Loans Receivable, Deposits, Other Borrowings, and Mortgage Servicing Rights The fair values for loans and mortgage servicing rights are estimated by discounting contractual cash flows and adjusting for prepayment estimates. Discount rates are based upon rates generally charged for such loans with similar characteristics. Demand, savings, and money market deposit accounts are valued at the amount payable on demand as of year-end. Fair values for certificates of deposit, time deposits, and other borrowings are estimated using a discounted cash flow calculation that applies contractual costs currently being offered in the existing portfolio to current market rates being offered for deposits and borrowings of similar remaining maturities. Commitments to Extend Credit These financial instruments are generally not subject to sale, and fair values are not readily available. The carrying value, represented by the net deferred fee arising from the unrecognized commitment, and the fair value, determined by discounting the remaining contractual fee over the term of the commitment using fees currently charged to enter into similar agreements with similar credit risk, are not considered material for disclosure. The contractual amounts of unfunded commitments are presented in Note 10.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	1 6 . ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The activity in accumulated other comprehensive income (loss) for the years ended September 30, 2019 and 2018, is as follows (in thousands): Accumulated Other Comprehensive Income (Loss) (1) Defined Benefit Pension Plan Unrealized Gains (Losses) on Securities Available for Sale Derivatives Total Balance at September 30, 2018 $ (477 ) $ (11,369 ) $ 1,936 $ (9,910 ) Other comprehensive income (loss) before reclassifications (1,050 ) 12,207 (1,758 ) 9,399 Amounts reclassified from accumulated other comprehensive loss - (35 ) (738 ) (773 ) Reclassification of certain income tax effects from other comprehensive income - 4 - 4 Period change (1,050 ) 12,176 (2,496 ) 8,630 Balance at September 30, 2019 $ (1,527 ) $ 807 $ (560 ) $ (1,280 ) Balance at September 30, 2017 $ (628 ) $ (927 ) $ 801 $ (754 ) Other comprehensive income before reclassifications 275 (9,883 ) 1,269 (8,339 ) Pension plan curtailment - (123 ) (348 ) (471 ) Reclassification of certain income tax effects from other comprehensive income (124 ) (436 ) 214 (346 ) Period change 151 (10,442 ) 1,135 (9,156 ) Balance at September 30, 2018 $ (477 ) $ (11,369 ) $ 1,936 $ (9,910 ) (1) All amounts are net of tax. Related income tax expense or benefit is calculated using an income tax rate approximating 21.0 % in Fiscal 2019 and 24.3% in Fiscal 2018. Details About Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss For the Year Ended September 30, (3) Affected Line Item in the Consolidated (in thousands) 2019 2018 Statement of Income Securities available for sale (1) Net securities gains reclassified into earnings $ 44 $ 162 Gain on sale of investment securities, net Related income tax expense (9 ) (39 ) Income taxes Net effect on accumulated other comprehensive loss for the period 35 123 Net of tax Derivatives and Hedging Activities (2) Interest expense, effective portion 934 459 Interest expense Related income tax expense (196 ) (111 ) Income taxes Net effect on accumulated other comprehensive loss for the period 738 348 Total reclassifications for the period $ 773 $ 471 (1) For additional details related to unrealized gains on securities and related amounts reclassified from accumulated other comprehensive income (loss) see Note 3, “Investment Securities.” (2) Included in the computation of net periodic pension cost. See Note 12, “Employee Benefits” for additional detail. (3) For additional details related to derivative financial instruments see Note18, “Derivatives and Hedging Activities.” (4) Amounts in parenthesis indicate debits.

Derivative and Hedging Activiti

Derivative and Hedging Activities	12 Months Ended
	Sep. 30, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	1 7 . DERIVATIVES AND HEDGING ACTIVITIES Risk Management Objective of Using Derivatives The Company is exposed to certain risk 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 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. 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 well as their classification on the Consolidated Balance Sheet as of September 30, 2019 and 2018, (in thousands). Fair Values of Derivative Instruments Asset Derivatives As of September 30, 2019 As of September 30, 2018 Notional Amount Balance Sheet Location Fair Value Notional Amount Balance Sheet Location Fair Value Derivatives designated as hedging instruments Interest Rate Products $50,000 Other Assets $303 $100,000 Other Assets $2,452 Total derivatives designated as hedging instruments $303 $2,452 Fair Values of Derivative Instruments Liability Derivatives As of September 30, 2019 As of September 30, 2018 Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments Interest Rate Products $85,000 Other Liabilities $1,011 Other Liabilities $- Total derivatives designated as hedging instruments $1,011 $- 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 September 30, 2019, the Company had seven interest rate swaps with a notional of $135 million associated with the Company’s cash outflows associated with various FHLB advances and brokered deposits. As of September 30, 2018, the Company had six interest rate swaps with a notional of $100 million associated with the company’s cash outflows associated with various FHLB advances. 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 periods ended September 30, 2019 and 2018. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest income/expense as interest payments are made/received on the Company’s variable-rate assets/liabilities. During the 12 months ended September 30, 2019 and 2018, the Company had $934,000 and $459,000, respectively of gains classified to interest expense. During the next twelve months, the Company estimates that $111,000 thousand The table below presents the effect of the Company’s cash flow hedge accounting on Accumulated Other Comprehensive Income for the periods ended September 30, 2019 and 2018 (in thousands). The Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income Derivatives in Hedging Relationships Amount of Gain Recognized in OCI on Derivative Amount of Gain Reclassified from Accumulated OCI into Income Year Ended September 30, Year Ended September 30, Location of Gain Reclassified from Year Ended September 30, Year Ended September 30, 2019 2018 Accumulated OCI into Income 2019 2018 Derivatives in Cash Flow Hedging Relationships Interest Rate Products $ 3,160 $ 1,237 Interest Expense $ 934 $ 459 Total $ 3,160 $ 1,237 $ 934 $ 459 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 September 30, 2019, the Company had derivatives in a net liability position and was required to post $710,000 in collateral against its obligations under these agreements. As of September 30, 2018, the Company had no derivatives in a net liability position and was not required to post collateral against its obligations under these agreements. If the Company had breached any of these provisions at September 30, 2019 and 2018, it could have been required to settle its obligations under the agreements at the termination value.

Revenue Recognition

Revenue Recognition	12 Months Ended
	Sep. 30, 2019
Revenue From Contract With Customer [Abstract]
Revenue Recognition	1 8 . REVENUE RECOGNITION Effective October 1, 2018, the Company adopted ASU 2014-09 Revenue from Contracts with Customers- Topic 606 Management determined that since the guidance does not apply to revenue associated with financial instruments, including loans and securities that are accounted for under other GAAP, the new guidance did not have a material impact on revenue most closely associated with financial instruments including interest income and expense along with non interest revenue resulting from non interest security gains, loan servicing, commitment fees and fees from financial guarantees. As a result, no changes were made during the period related to these sources of revenue which cumulatively comprise 90.3% of the total revenue of the Company. The main types of non interest income within the scope of the standard are: 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.

Parent Company

Parent Company	12 Months Ended
	Sep. 30, 2019
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Parent Company	19 . PARENT COMPANY Condensed financial statements of ESSA Bancorp, Inc. are as follows (in thousands): CONDENSED BALANCE SHEET September 30, 2019 2018 ASSETS Cash and due from banks $ 2,354 $ 3,713 Equity securities 25 20 Investment in subsidiary 185,119 173,431 Premises and equipment, net 421 431 Other assets 1,702 1,705 TOTAL ASSETS $ 189,621 $ 179,300 LIABILITIES AND STOCKHOLDERS’ EQUITY Other liabilities $ 113 $ 114 Stockholders’ equity 189,508 179,186 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 189,621 $ 179,300 CONDENSED STATEMENT OF INCOME Year Ended September 30, 2019 2018 INCOME Interest income $ 614 $ 517 Unrealized gain on equity securities 5 - Dividends 10,000 - Total income 10,619 517 EXPENSES Professional fees 427 431 Other 29 388 Total expenses 456 819 Income (loss) before income tax expense 10,163 (302 ) Income tax expense benefit 58 (73 ) Income (loss) before equity in undistributed net earnings of subsidiary 10,105 (229 ) Equity in undistributed net earnings of subsidiary 2,518 6,760 NET INCOME $ 12,623 $ 6,531 COMPREHENSIVE INCOME(LOSS) $ 21,249 $ (2,279 ) CONDENSED STATEMENT OF CASH FLOWS Year Ended September 30, 2019 2018 OPERATING ACTIVITIES Net income $ 12,623 $ 6,531 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net earnings of subsidiary (2,518 ) (6,760 ) Provision for depreciation 10 23 (Increase) decrease in accrued income taxes (58 ) 73 Increase in accrued interest receivable (61 ) (56 ) Deferred federal income taxes 1 2 Loss on disposal of fixed assets - 340 Other, net 707 564 Net cash provided by operating activities 10,704 717 INVESTING ACTIVITIES Sale of premises, equipment and software - 299 Net cash provided by investing activities - 299 FINANCING ACTIVITIES Purchase of treasury stock shares (7,797 ) 1,575 Dividends on common stock (4,266 ) (3,912 ) Net cash used for financing activities (12,063 ) (2,337 ) Decrease in cash (1,359 ) (1,321 ) CASH AT BEGINNING OF YEAR 3,713 5,034 CASH AT END OF YEAR $ 2,354 $ 3,713

Selected Quarterly Data (Unaudi

Selected Quarterly Data (Unaudited)	12 Months Ended
	Sep. 30, 2019
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Data (Unaudited)	20. SELECTED QUARTERLY DATA (UNAUDITED) Three Months Ended December 31, 2018 March 31, 2019 June 30, 2019 September 30, 2019 Total interest income $ 16,869 $ 17,128 $ 17,000 $ 16,762 Total interest expense 4,984 5,396 5,285 5,084 Net interest income 11,885 11,732 11,715 11,678 Provision for loan losses 876 600 400 200 Net interest income after provision for loan losses 11,009 11,132 11,315 11,478 Total noninterest income 2,126 2,068 1,862 2,101 Total noninterest expense 9,652 9,711 9,518 9,172 Income before income taxes 3,483 3,489 3,659 4,407 Income taxes benefit 474 630 612 699 Net income $ 3,009 $ 2,859 $ 3,047 $ 3,708 Per share data: Net income Basic $ 0.27 $ 0.26 $ 0.29 $ 0.35 Diluted $ 0.27 $ 0.26 $ 0.29 $ 0.35 Average shares outstanding Basic 10,951,356 10,825,626 10,574,407 10,562,770 Diluted 10,951,356 10,825,626 10,574,407 10,562,771 Three Months Ended December 31, 2017 March 31, 2018 June 30, 2018 September 30, 2018 Total interest income $ 15,376 $ 15,847 $ 16,718 $ 16,562 Total interest expense 3,608 3,912 4,156 4,592 Net interest income 11,768 11,935 12,562 11,970 Provision for loan losses 1,000 1,100 975 925 Net interest income after provision for loan losses 10,768 10,835 11,587 11,045 Total noninterest income 1,969 1,945 1,897 2,002 Total noninterest expense 10,282 9,988 10,163 9,420 Income before income taxes 2,455 2,792 3,321 3,627 Income taxes expense 4,093 529 500 542 Net income $ (1,638 ) $ 2,263 $ 2,821 $ 3,085 Per share data: Net income Basic $ (0.15 ) $ 0.21 $ 0.26 $ 0.28 Diluted $ (0.15 ) $ 0.21 $ 0.26 $ 0.28 Average shares outstanding Basic 10,717,138 10,796,353 10,911,469 10,970,947 Diluted 10,717,138 10,822,109 10,922,860 10,970,947

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Nature of Operations and Basis of Presentation	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. On November 6, 2014, the Company converted its status from a savings and loan holding company to a bank holding company. In addition, the Bank converted from a Pennsylvania-chartered savings association to a Pennsylvania-chartered savings bank. The Bank’s primary business consists of the taking of deposits and granting of loans to customers generally in Monroe, Northampton, Lehigh, Lackawanna, Luzerne, Delaware, Chester, and Montgomery counties, Pennsylvania. The Bank is subject to regulation and supervision by the Pennsylvania Department of Banking and Securities and the Federal Deposit Insurance Corporation. The investment in subsidiary 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 and is currently inactive. 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 owned 100 percent 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.
Use of Estimates in the Preparation of Financial Statements	Use of Estimates in the Preparation of Financial Statements The accounting principles followed by the Company and its subsidiary and the methods of applying these principles conform to U.S. generally accepted accounting principles and to general practice within the banking industry. In preparing the consolidated financial statements, the Company 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.
Securities	Securities The Company determines the appropriate classification of debt securities at the time of purchase and reevaluates such designation as of each balance sheet date. Securities classified as available for sale are those securities that the Company intends to hold for an indefinite period of time but not necessarily to maturity. Any decision to sell a security classified as available for sale would be based on various factors, including significant movement in interest rates, changes in maturity mix of the Company’s assets and liabilities, liquidity needs, regulatory capital considerations, and other similar factors. Securities available for sale are carried at fair value. Unrealized gains and losses are reported in other comprehensive income (loss), net of the related deferred tax effects. Realized gains or losses, determined on the basis of the cost of the specific securities sold, are included in earnings. Premiums and discounts are recognized in interest income using the interest method over the period to maturity. Declines in the fair value of available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. In estimating other-than-temporary impairment losses, the Company considers: (1) the length of time and the extent to which the fair value has been less than cost; (2) the financial condition and near-term prospects of the issuer; and (3) the Company’s intent to sell the security or whether it’s more likely than not that the Company would be required to sell the security before its anticipated recovery in market value.
Loans Receivable	Loans Receivable Loans receivable that the Company has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at their outstanding unpaid principal balances, net of an allowance for loan losses and any deferred fees and costs. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the yield (interest income) of the related loans. The Company is generally amortizing these amounts over the contractual life of the loan. The accrual of interest is generally discontinued when the contractual payment of principal or interest has become 90 days past due or the Company has serious doubts about further collectability of principal or interest, even though the loan is currently performing. A loan may remain on accrual status if it is in the process of collection and is either guaranteed or well secured. When a loan is placed on nonaccrual status, unpaid interest credited to income is reversed. Interest received on nonaccrual loans generally is either applied against principal or reported as interest income, according to the Company’s judgment as to the collectability of principal. Generally, loans are restored to accrual status when the obligation is brought current and has performed in accordance with the contractual terms for a reasonable period of time and the ultimate collectability of the total contractual principal and interest is no longer in doubt.
Loans Acquired	Loans Acquired Loans acquired including loans that have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments receivable, are initially recorded at fair value (as determined by the present value of expected future cash flows) with no valuation allowance. Loans are evaluated individually to determine if there is evidence of deterioration of credit quality since origination. The difference between the undiscounted cash flows expected at acquisition and the investment in the loan, or the “accretable yield,” is recognized as interest income on a level-yield method over the life of the loan. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “non-accretable difference,” are not recognized as a yield adjustment or as a loss accrual or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loan over its remaining estimated life. Decreases in expected cash flows are recognized immediately as impairment. Any valuation allowances on these impaired loans reflect only losses incurred after acquisition. For purchased loans acquired that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Loans are aggregated and accounted for as a pool of loans if the loans being aggregated have common risk characteristics. Subsequent to the purchase date, the methods utilized to estimate the required allowance for credit losses for these loans is similar to originated loans; however, the Company records a provision for loan losses only when the required allowance exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loans.
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses is established through provisions for loan losses charged against income. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance for loan losses. The allowance for loan losses is maintained at a level by management which represents the evaluation of known and inherent risks in the loan portfolio at the Consolidated Balance Sheet date. Management’s periodic evaluation of the adequacy of the allowance is based on the Company’s past loan loss experience, known and inherent risks in the portfolio, adverse situations that may affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions, and other relevant factors. This evaluation is inherently subjective, since it requires material estimates that may be susceptible to significant change, including the amounts and timing of future cash flows expected to be received on impaired loans. The allowance for loan losses consists of specific and general components. The specific component relates to loans that are classified as impaired. For such loans an allowance for loan losses is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers nonclassified loans and is based on historical loss experience adjusted for qualitative factors. All loans are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and all loan types are considered impaired if the loan is restructured in a troubled debt restructuring. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment 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. Large groups of smaller-balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual consumer and residential mortgage loans for impairment disclosures unless such loans are part of a larger relationship that is impaired or classified as a troubled debt restructuring or is more than 180 days past due. A loan is considered to be a troubled debt restructuring (“TDR”) loan when the Company grants a concession to the borrower because of the borrower’s financial condition that it would not otherwise consider. Such concessions include the reduction of interest rates, forgiveness of principal or interest, or other modifications of interest rates that are less than the current market rate for new obligations with similar risk. TDR loans that are in compliance with their modified terms and that yield a market rate may be removed from the TDR status after one year of performance.
Regulatory Stock	Regulatory Stock Regulatory stock consists of Federal Home Loan Bank (“FHLB”) of Pittsburgh stock and Atlantic Community Bankers Bank stock. Regulatory stock is carried at cost. The Company is a member of the Federal Home Loan Bank System and holds stock in the Federal Home Loan Bank of Pittsburgh. As a member, the Company maintains an investment in the capital stock of the FHLB of Pittsburgh in an amount not less than 10 basis points of the outstanding member asset value plus 4.0 percent of its outstanding FHLB borrowings, as calculated throughout the year. The equity security is accounted for at cost and classified separately on the Consolidated Balance Sheet. The stock is bought from and sold to the FHLB based upon its $100 par value. The stock does not have a readily determinable fair value and as such is classified as restricted stock, carried at cost and evaluated by management. The stock’s value is determined by the ultimate recoverability of the par value rather than by recognizing temporary declines. The determination of whether the par value will ultimately be recovered is influenced by criteria such as the following: (a) The significance of the decline in net assets of the FHLB as compared to the capital stock amount and the length of time this situation has persisted; (b) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance; (c) the impact of legislative and regulatory changes on the customer base of the FHLB; and (d) the liquidity position of the FHLB. With consideration given to these factors, management concluded that the stock was not impaired at September 30, 2019.
Loan Servicing	Loan Servicing Servicing assets are recognized as separate assets when rights are acquired through purchase or through sale of financial assets. Capitalized servicing rights are reported in other assets and are amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying financial assets. Servicing assets are evaluated for impairment based upon a third-party appraisal. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. Impairment is recognized through a valuation allowance to the extent that fair value is less than the capitalized amount. The Company’s loan servicing assets at September 30, 2019 and 2018, were not impaired. Total servicing assets included in other assets as of September 30, 2019 and 2018, were $177,000 and $206,000, respectively.
Premises and Equipment	Premises and Equipment Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the useful lives of the related assets, which range from 10 to 40 years for buildings, land improvements, and leasehold improvements and 3 to 7 years for furniture, fixtures, and equipment. Expenditures for maintenance and repairs are charged to operations as incurred. Costs of major additions and improvements are capitalized.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. In accordance with the FASB’s fair value measurement guidance, the Company has elected to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.
Bank-Owned Life Insurance ("BOLI")	Bank-Owned Life Insurance (“BOLI”) The Company owns insurance on the lives of a certain group of key employees. The policies were purchased to help offset the increase in the costs of various fringe benefit plans, including healthcare. The cash surrender value of these policies is included as an asset on the Consolidated Balance Sheet, and any increase in cash surrender value is recorded as noninterest income on the Consolidated Statement of Income. In the event of the death of an insured individual under these policies, the Company would receive a death benefit which would be recorded as noninterest income.
Foreclosed Real Estate	Foreclosed Real Estate Real estate owned acquired in settlement of foreclosed loans is carried at fair value minus estimated costs to sell. At acquisition of real estate acquired in settlement of foreclosed loans, the excess of the remaining loan balance over the asset’s estimated fair value less cost to sell is charged off against the allowance for loan losses. Subsequent declines in the asset’s value are recognized as noninterest expense in the Consolidated Statement of Income. Operating expenses of such properties, net of related income, are expensed in the period incurred.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill is not amortized, but it is tested at least annually for impairment in the fourth quarter, or more frequently if indicators of impairment are present. If the estimated current fair value of a reporting unit exceeds its carrying value, no additional testing is required and an impairment loss is not recorded. The Company uses market capitalization and multiples of tangible book value methods to determine the estimated current fair value of its reporting unit. Based on this analysis, no impairment was recorded in 2019 or 2018. The other intangible assets are assigned useful lives, which are amortized on an accelerated basis over their weighted-average lives. The Company periodically reviews intangible assets for impairment as events or changes in circumstances indicate that the carrying amount of such asset may not be recoverable. Based on these reviews, no impairment was recorded in 2019 and 2018. The following tables provide information for the carrying amount of goodwill and intangible assets (in thousands). Goodwill 2019 2018 Balance at beginning of year $ 13,801 $ 13,801 Goodwill acquired - - Balance at end of year $ 13,801 $ 13,801 Intangible assets 2019 2018 Balance at beginning of year $ 1,375 $ 1,844 Intangible assets acquired - - Amortization (309 ) (469 ) Balance at end of year $ 1,066 $ 1,375 Amortizable intangible assets were composed of the following: September 30, 2019 2018 Gross Amount Accumulated Amortization (dollars in thousands) Core deposit intangible $ 4,787 $ 3,721 $ 3,412 2019 2018 Aggregate amortization expense: As of the years ended September 30 $ 309 $ 469 Estimated future amortization expense (dollars in thousands): 2020 $ 275 2021 272 2022 239 2023 190 2024 90 $ 1,066
Employee Benefit Plans	Employee Benefit Plans The Bank maintains a noncontributory, defined benefit pension plan for all employees who have met age and length of service requirements. The Bank also maintains a defined contribution Section 401(k) plan covering eligible employees. The Company created an ESOP for the benefit of employees who meet certain eligibility requirements. The Company makes cash contributions to the ESOP on an annual basis. The Company maintains an equity incentive plan to provide for issuance or granting of shares of common stock for stock options or restricted stock. The Company has recorded stock-based employee compensation cost using the fair value method as allowed under generally accepted accounting principles. Management estimated the fair values of all option grants using the Black-Scholes option-pricing model. Management estimated the expected life of the options using the simplified method as allowed under generally accepted accounting principles. The risk-free rate was determined utilizing the treasury yield for the expected life of the option contract.
Advertising Costs	Advertising Costs In accordance with generally accepted accounting principles, the Company expenses all advertising expenditures incurred.
Transfers of Financial Assets	Transfers of Financial Assets Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company; (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets; and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Income Taxes	Income Taxes Deferred tax assets and liabilities are reflected based on the differences between the financial statement and the income tax basis of assets and liabilities using the enacted marginal tax rates. Deferred income tax expense and benefit are based on the changes in the deferred tax assets or liabilities from period to period. Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which such items are expected to be realized or settled. As changes in tax rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The Company files a consolidated federal income tax return and individual state income tax returns. The Company prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company has defined cash and cash equivalents as cash and due from banks and interest-bearing deposits with other institutions with original maturities of less than 90 days.
Earnings Per Share	Earnings Per Share The Company provides dual presentation of basic and diluted earnings per share. Basic earnings per share are calculated utilizing net income as reported as the numerator and average shares outstanding as the denominator. The computation of diluted earnings per share differs in that the dilutive effects of any options are adjusted for in the denominator.
Comprehensive Income (Loss)	Comprehensive Income (Loss) The Company is required to present comprehensive income (loss) and its components in a full set of general-purpose financial statements for all periods presented. Other comprehensive income (loss) is composed of net unrealized holding gains or losses on its available-for-sale investment and mortgage-backed securities portfolio and derivative instruments, and changes in unrecognized pension cost.
Fair Value Measurements	Fair Value Measurements The Company groups assets and liabilities carried at fair value in three levels, based on the markets in which the assets are traded and the reliability of the assumptions used to determine fair value. These levels are: • Level I – Valuation is based upon quoted prices for identical instruments traded in active markets. • Level II – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. • Level III – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s own estimates of assumptions that market participants would use in pricing the asset. The Company determines fair value based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. It is our policy to maximize the use of observable inputs and minimize the use of unobservable inputs when developing fair value measurements, in accordance with the fair value hierarchy in generally accepted accounting principles. Fair value measurements for most of the Company’s assets are obtained from independent pricing services that we have engaged for this purpose. When available, the Company, or the Company’s independent pricing service, use quoted market prices to measure fair value. If market prices are not available, fair value measurement is based upon models that incorporate available trade, bid, and other market information. Subsequently, all of the Company’s financial instruments use either of the foregoing methodologies to determine fair value adjustments recorded to our financial statements. In certain cases, however, when market observable inputs for model-based valuation techniques may not be readily available, we are required to make judgments about assumptions market participants would use in estimating the fair value of financial instruments. The degree of management judgment involved in determining the fair value of a financial instrument is dependent upon the availability of quoted market prices or observable market parameters. For financial instruments that trade actively and have quoted market prices or observable market parameters, there is minimal subjectivity involved in measuring fair value. When observable market prices and parameters are not fully available, management judgment is necessary to estimate fair value. In addition, changes in the market conditions may reduce the availability of quoted prices or observable data. When market data is not available, we use valuation techniques requiring more management judgment to estimate the appropriate fair value measurement. Therefore, the results cannot be determined with precision and may not be realized in an actual sale or immediate settlement of the asset. Additionally, there may be inherent weaknesses in any calculation technique, and changes in the underlying assumptions used, including discount rates and estimates of future cash flows, that could significantly affect the results of current or future valuations.
Reclassification of Comparative Amounts	Reclassification of Comparative Amounts Certain items previously reported have been reclassified to conform to the current year’s reporting format. Such reclassifications did not affect consolidated net income or consolidated stockholders’ equity.
Adoption of New Standards	Adoption of New Standards In May 2014, the FASB issued ASU No. 2014-09, “Revenue from contracts with customers.” In January 2016, the FASB issued ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued Accounting Standards Update (ASU) 2016-02, Leases. The new leases standard requires a lessor to classify leases as either sales-type, direct financing or operating, similar to existing U.S. GAAP. Classification depends on the same five criteria used by lessees plus certain additional factors. The subsequent accounting treatment for all three lease types is substantially equivalent to existing U.S. GAAP for sales-type leases, direct financing leases, and operating leases. However, the new standard updates certain aspects of the lessor accounting model to align it with the new lessee accounting model, as well as with the new revenue standard under Topic 606. Lessees and lessors are required to provide certain qualitative and quantitative disclosures to enable users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The new leases standard addresses other considerations including identification of a lease, separating lease and non-lease components of a contract, sale and leaseback transactions, modifications, combining contracts, reassessment of the lease term, and re-measurement of lease payments. It also contains comprehensive implementation guidance with practical examples ASU 2016-02 will be effective for us on October 1, 2019 and initially required transition using a modified retrospective approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. In January 2018, the FASB issued ASU 2018-01, Leases (Topic 842) “Leases (Topic 842) - Targeted Improvements,” ASU 2018-20, “Leases (Topic 842) - Narrow-Scope Improvements for Lessors,” Leases (Topic 842): Codification Improvements, Upon adoption of ASU 2016-02, ASU 2018-01, ASU 2018-11, ASU 2018-20, and ASU 2019-01 on October 1, 2019, we expect to recognize right-of-use assets and related lease liabilities totaling $5.8 million and $5.8 million, respectively. We expect to elect to apply certain practical expedients provided under ASU 2016-02 whereby we will not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. We also do not expect to apply the recognition requirements of ASU 2016-02 to any short-term leases (as defined by related accounting guidance). We expect to utilize the modified-retrospective transition approach prescribed by ASU 2018-11. In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480), and Derivative and Hedging (Topic 815) In June 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718) In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes the Disclosure Requirements for Fair Value Measurements. In August 2018, the FASB issued ASU 2018-14, Compensation – Retirement Benefits (Topic 715-20) In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815) In April 2019, the FASB issued ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments – Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments Derivatives and Hedging Financial Instruments In May 2019, the FASB issued ASU 2019-05, Financial Instruments – Credit Losses, Topic 326 Financial Instruments – Credit Losses In July 2019, the FASB issued ASU 2019-07, Codification Updates to SEC Sections, Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10532, Disclosure Update and Simplification, and Nos. 33-10231 and 33-10442, Investment Company Reporting Modernization, and Miscellaneous Updates In November 2019, the FASB issued ASU 2019-09, Financial Services ‒ Insurance (Topic 944) Financial Services ‒ Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts In November 2019, the FASB issued ASU 2019-10, Financial Instruments ‒ Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842) Intangibles ‒ Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (Goodwill)

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Carrying Amount of Goodwill and Intangible Assets	The following tables provide information for the carrying amount of goodwill and intangible assets (in thousands). Goodwill 2019 2018 Balance at beginning of year $ 13,801 $ 13,801 Goodwill acquired - - Balance at end of year $ 13,801 $ 13,801 Intangible assets 2019 2018 Balance at beginning of year $ 1,375 $ 1,844 Intangible assets acquired - - Amortization (309 ) (469 ) Balance at end of year $ 1,066 $ 1,375
Amortizable Intangible Assets	Amortizable intangible assets were composed of the following: September 30, 2019 2018 Gross Amount Accumulated Amortization (dollars in thousands) Core deposit intangible $ 4,787 $ 3,721 $ 3,412 2019 2018 Aggregate amortization expense: As of the years ended September 30 $ 309 $ 469
Estimated Future Amortization Expense	Estimated future amortization expense (dollars in thousands): 2020 $ 275 2021 272 2022 239 2023 190 2024 90 $ 1,066

Earnings per Share (Tables)

Earnings per Share (Tables)	12 Months Ended
	Sep. 30, 2019
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 years ended September 30, 2019 and 2018. 2019 2018 Weighted-average common shares outstanding 18,133,095 18,133,095 Average treasury stock shares (6,562,435 ) (6,420,854 ) Average unearned ESOP shares (792,073 ) (837,342 ) Average unearned nonvested shares (45,421 ) (41,055 ) Weighted-average common shares and common stock equivalents used to calculate basic earnings per share 10,733,166 10,833,844 Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share - - Additional common stock equivalents (stock options) used to calculate diluted earnings per share - - Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share 10,733,166 10,833,844

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Sep. 30, 2019
Investments Debt And Equity Securities [Abstract]
Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Investment Securities Available for Sale	The amortized cost, gross unrealized gains and losses, and fair value of investment securities available for sale are summarized as follows (in thousands): 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale Fannie Mae $ 126,672 $ 987 $ (554 ) $ 127,105 Freddie Mac 80,639 453 (331 ) 80,761 Governmental National Mortgage Association securities 18,590 182 (198 ) 18,574 Total mortgage-backed securities 225,901 1,622 (1,083 ) 226,440 Obligations of states and political subdivisions 19,860 356 (4 ) 20,212 U.S. government agency securities 6,454 234 - 6,688 Corporate obligations 43,121 594 (581 ) 43,134 Other debt securities 17,036 84 (201 ) 16,919 Total debt securities $ 312,372 $ 2,890 $ (1,869 ) $ 313,393 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale Fannie Mae $ 147,433 $ 17 $ (5,827 ) $ 141,623 Freddie Mac 99,587 2 (4,415 ) 95,174 Governmental National Mortgage Association securities 22,164 - (838 ) 21,326 Total mortgage-backed securities 269,184 19 (11,080 ) 258,123 Obligations of states and political subdivisions 42,090 251 (1,392 ) 40,949 U.S. government agency securities 5,678 2 (122 ) 5,558 Corporate obligations 48,559 116 (1,260 ) 47,415 Other debt securities 20,295 - (922 ) 19,373 Total debt securities 385,806 388 (14,776 ) 371,418 Equity securities - financial services(a) 25 - (5 ) 20 Total $ 385,831 $ 388 $ (14,781 ) $ 371,438 (a)As of October 1, 2018, the Company adopted ASU 2016-01 resulting in reclassification of equity securities from available for-sale investment securities to other assets. At September 30, 2018, the Company’s investment in equity securities was comprised of common stock issued by an unrelated bank holding company.
Summary of Unrealized and Realized Gains Losses Recognized in Net Income on Equity Securities	(Dollars in thousands) 2019 Net gains recognized during the period on equity securities $ 5 Less: Net gains recognized during the period on equity securities sold during the period - Unrealized gains recognized during the reporting period on equity securities still held at the reporting date $ 5
Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity	The amortized cost and fair value of debt securities at September 30, 2019, 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 Amortized Cost Fair Value Due in one year or less $ - $ - Due after one year through five years 19,667 20,004 Due after five years through ten years 86,380 86,819 Due after ten years 206,325 206,570 Total $ 312,372 $ 313,393
Schedule of Gross Unrealized Losses and Fair Value	The following tables show the Company’s gross unrealized losses and fair value, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands): 2019 Less than Twelve Months Twelve Months or Greater Total Number of Securities Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fannie Mae 48 $ 5,568 $ (6 ) $ 45,867 $ (548 ) $ 51,435 $ (554 ) Freddie Mac 32 765 - 29,661 (331 ) 30,426 (331 ) Governmental National Mortgage Association securities 12 345 (1 ) 8,242 (197 ) 8,587 (198 ) Obligations of states and political subdivisions 2 2,159 (4 ) - - 2,159 (4 ) Corporate obligations 13 2,063 (5 ) 12,015 (576 ) 14,078 (581 ) Other debt securities 14 3,493 (16 ) 6,132 (185 ) 9,625 (201 ) Total 121 $ 14,393 $ (32 ) $ 101,917 $ (1,837 ) $ 116,310 $ (1,869 ) 2018 Less than Twelve Months Twelve Months or Greater Total Number of Securities Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fannie Mae 100 $ 63,997 $ (1,442 ) $ 74,783 $ (4,385 ) $ 138,780 $ (5,827 ) Freddie Mac 74 28,902 (830 ) 65,812 (3,585 ) 94,714 (4,415 ) Governmental National Mortgage Association securities 19 9,776 (142 ) 11,550 (696 ) 21,326 (838 ) Obligations of states and political subdivisions 25 7,651 (105 ) 21,004 (1,287 ) 28,655 (1,392 ) U.S. government agency securities 3 5,177 (122 ) - - 5,177 (122 ) Corporate obligations 34 20,172 (363 ) 13,206 (897 ) 33,378 (1,260 ) Other debt securities 20 2,399 (38 ) 16,974 (884 ) 19,373 (922 ) Equity Securities(a) 1 20 (5 ) - - 20 (5 ) Total 276 $ 138,094 $ (3,047 ) $ 203,329 $ (11,734 ) $ 341,423 $ (14,781 ) (a)As of October 1, 2018, the Company adopted ASU 2016-01 resulting in reclassification of equity securities from available for-sale investment securities to other assets. At September 30, 2018, the Company’s investment in equity securities was comprised of common stock issued by an unrelated bank holding company.

Loans Receivable (Tables)

Loans Receivable (Tables)	12 Months Ended
	Sep. 30, 2019
Receivables [Abstract]
Summary of Loans Receivable	Loans receivable consist of the following (in thousands): 2019 2018 Real estate loans: Residential $ 597,514 $ 580,561 Construction 5,672 3,920 Commercial 480,647 416,573 Commercial 55,559 49,479 Obligations of states and political subdivisions 71,828 73,362 Home equity loans and lines of credit 45,156 43,962 Auto loans 81,983 146,220 Other 2,924 2,682 1,341,283 1,316,759 Less allowance for loan losses 12,630 11,688 Net loans $ 1,328,653 $ 1,305,071
Changes in Accretable Yield for Purchased Credit-Impaired Loans	Changes in the accretable yield for purchased credit-impaired loans were as follows, since acquisition, for the years ended September 30, 2019 and 2018 (in thousands): 2019 2018 Balance at beginning of period $ 107 $ 471 Reclassification and other - 681 Accretion (41 ) (1,045 ) Balance at end of period $ 66 $ 107
Summary of Additional Information Regarding Loans Acquired and Accounted	The following table presents additional information regarding loans acquired and accounted for in accordance with ASC 310-30 (in thousands): 2019 2018 Acquired Loans with Specific Evidence or Deterioration in Credit Quality (ASC 310-30) Acquired Loans with Specific Evidence or Deterioration in Credit Quality (ASC 310-30) Outstanding balance $ 1,392 $ 2,497 Carrying amount 1,299 1,802
Schedule of Loans Evaluated for Impairment	The following tables show the amount of loans in each category that was individually and collectively evaluated for impairment at the dates indicated (in thousands): Total Loans Individually Evaluated for Impairment Loans Acquired with Deteriorated Credit Quality Collectively Evaluated for Impairment September 30, 2019 Real estate loans: Residential $ 597,514 $ 4,281 $ - $ 593,233 Construction 5,672 - - 5,672 Commercial 480,647 2,633 1,299 476,715 Commercial 55,559 448 - 55,111 Obligations of states and political subdivisions 71,828 - - 71,828 Home equity loans and lines of credit 45,156 400 - 44,756 Auto Loans 81,983 583 - 81,400 Other 2,924 31 - 2,893 Total $ 1,341,283 $ 8,376 $ 1,299 $ 1,331,608 Total Loans Individually Evaluated for Loans Acquired with Deteriorated Credit Quality Collectively Evaluated for Impairment September 30, 2018 Real estate loans: Residential $ 580,561 $ 5,317 $ - $ 575,244 Construction 3,920 - - 3,920 Commercial 416,573 5,892 1,801 408,880 Commercial 49,479 85 1 49,393 Obligations of states and political subdivisions 73,362 - - 73,362 Home equity loans and lines of credit 43,962 114 - 43,848 Auto Loans 146,220 445 - 145,775 Other 2,682 17 - 2,665 Total $ 1,316,759 $ 11,870 $ 1,802 $ 1,303,087
Schedule of Investment and Unpaid Principal Balances for Impaired Loans	The following tables include the recorded investment and unpaid principal balances for impaired loans with the associated allowance amount, if applicable, excluding purchased impaired credit loans. Also presented are the average recorded investments in the impaired loans and the related amount of interest recognized during the time within the period that the impaired loans were impaired (in thousands). Recorded Investment Unpaid Principal Balance Associated Allowance Average Recorded Investment Interest Income Recognized September 30, 2019 With no specific allowance recorded: Real estate loans: Residential $ 3,935 $ 5,309 $ - $ 3,657 $ 5 Construction - - - - - Commercial 2,385 4,269 - 4,129 54 Commercial 354 475 - 285 1 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 400 465 - 224 - Auto loans 161 248 - 107 2 Other 15 22 - 13 - Subtotal 7,250 10,788 - 8,415 62 With an allowance recorded: Real estate loans: Residential 346 398 36 777 - Construction - - - - - Commercial 248 294 56 158 - Commercial 94 223 6 613 - Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit - - - 16 - Auto loans 422 426 144 220 - Other 16 17 6 1 - Subtotal 1,126 1,358 248 1,785 - Total: Real estate loans: Residential 4,281 5,707 36 4,434 5 Construction - - - - - Commercial 2,633 4,563 56 4,287 54 Commercial 448 698 6 898 1 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 400 465 - 240 - Auto loans 583 674 144 327 2 Other 31 39 6 14 - Total $ 8,376 $ 12,146 $ 248 $ 10,200 $ 62 Recorded Investment Unpaid Principal Balance Associated Allowance Average Recorded Investment Interest Income Recognized September 30, 2018 With no specific allowance recorded: Real estate loans: Residential $ 4,449 $ 6,176 $ - $ 4,192 $ 27 Construction - - - - - Commercial 5,892 6,790 - 6,432 279 Commercial 85 349 - 750 58 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 114 138 - 161 1 Auto loans 87 223 - 150 1 Other 17 25 - 27 - Subtotal 10,644 13,701 - 11,712 366 With an allowance recorded: Real estate loans: Residential 868 938 149 1,258 - Construction - - - - - Commercial - - - 13 - Commercial - - - - - Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit - - - 13 - Auto loans 358 375 164 201 - Other - - - - - Subtotal 1,226 1,313 313 1,485 - Total: Real estate loans: Residential 5,317 7,114 149 5,450 27 Construction - - - - - Commercial 5,892 6,790 - 6,445 279 Commercial 85 349 - 750 58 Obligations of states and political subdivisions - - - - - Home equity loans and lines of credit 114 138 - 174 1 Auto loans 445 598 164 351 1 Other 17 25 - 27 - Total $ 11,870 $ 15,014 $ 313 $ 13,197 $ 366
Classes of the Loan Portfolio, Internal Risk Rating System	The following tables present the classes of the loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard, and Doubtful within the internal risk rating system as of September 30, 2019 and 2018 (in thousands): Pass Special Mention Substandard Doubtful Total September 30, 2019 Commercial real estate loans $ 461,701 $ 7,492 $ 11,454 $ - $ 480,647 Commercial 52,486 - 3,073 - 55,559 Obligations of states and political subdivisions 71,828 - - - 71,828 Total $ 586,015 $ 7,492 $ 14,527 $ - $ 608,034 Pass Special Mention Substandard Doubtful Total September 30, 2018 Commercial real estate loans $ 392,915 $ 8,960 $ 14,698 $ - $ 416,573 Commercial 48,137 8 1,334 - 49,479 Obligations of states and political subdivisions 73,362 - - - 73,362 Total $ 514,414 $ 8,968 $ 16,032 $ - $ 539,414
Schedule of Performing or Nonperforming Loans	The following tables present the recorded investment in the loan classes based on payment activity as of September 30, 2019 and 2018 (in thousands): Performing Nonperforming Purchased Credit Impaired Total September 30, 2019 Real estate loans: Residential $ 592,907 $ 4,607 $ - $ 597,514 Construction 5,672 - - 5,672 Home equity loans and lines of credit 44,534 622 - 45,156 Auto Loans 81,317 666 - 81,983 Other 2,883 41 - 2,924 Total $ 727,313 $ 5,936 $ - $ 733,249 Performing Nonperforming Purchased Credit Impaired Total September 30, 2018 Real estate loans: Residential $ 575,244 $ 5,317 $ - $ 580,561 Construction 3,920 - - 3,920 Home equity loans and lines of credit 43,746 216 43,962 Auto Loans 145,633 587 - 146,220 Other 2,664 18 - 2,682 Total $ 771,207 $ 6,138 $ - $ 777,345
Classes of the Loan Portfolio Summarized by the Aging Categories	The following table presents the classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans as of September 30, 2019 and 2018 (in thousands): 31-60 Days 61-90 Days Greater than 90 Days Past Due and Total Purchased Credit Total Current Past Due Past Due Accruing Non-accrual Past Due Accruing Non-accrual Loans September 30, 2019 Real estate loans: Residential $ 590,457 $ 2,187 $ 263 $ - $ 4,607 $ 7,057 $ - $ - $ 597,514 Construction 5,672 - - - - - - - 5,672 Commercial 476,644 236 - - 2,468 2,704 243 1,056 480,647 Commercial 54,899 20 37 - 603 660 - - 55,559 Obligations of states and political subdivisions 71,828 - - - - - - - 71,828 Home equity loans and lines of credit 44,319 47 168 - 622 837 - - 45,156 Auto loans 80,090 1,227 - - 666 1,893 - - 81,983 Other 2,883 - - - 41 41 - - 2,924 Total $ 1,326,792 $ 3,717 $ 468 $ - $ 9,007 $ 13,192 $ 243 $ 1,056 $ 1,341,283 31-60 Days 61-90 Days Greater than 90 Days Past Due and Total Purchased Credit Total Current Past Due Past Due Accruing Non-accrual Past Due Accruing Non-accrual Loans September 30, 2018 Real estate loans: Residential $ 572,236 $ 2,088 $ 920 $ - $ 5,317 $ 8,325 $ - $ - $ 580,561 Construction 3,920 - - - - - - - 3,920 Commercial 412,636 185 - - 1,951 2,136 255 1,546 416,573 Commercial 48,567 25 11 - 875 911 - 1 49,479 Obligations of states and political subdivisions 73,362 - - - - - - - 73,362 Home equity loans and lines of credit 43,716 30 - - 216 246 - - 43,962 Auto loans 144,140 1,473 20 - 587 2,080 - - 146,220 Other 2,647 17 - - 18 35 - - 2,682 Total $ 1,301,224 $ 3,818 $ 951 $ - $ 8,964 $ 13,733 $ 255 $ 1,547 $ 1,316,759
Summary of Primary Segments of ALL	The following table summarizes the primary segments of the ALL, segregated into the amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment as of September 30, 2019 and 2018 (in thousands): Real Estate Loans Obligations of States and Political Home Loans and Lines of Residential Construction Commercial Commercial Subdivisions Credit Auto Other Unallocated Total ALL balance at September 30, 2017 $ 3,878 $ 23 $ 1,758 $ 987 $ 248 $ 470 $ 1,836 $ 21 $ 144 $ 9,365 Charge-offs (335 ) - (54 ) (151 ) - (68 ) (1,833 ) (21 ) - (2,462 ) Recoveries 12 - 49 10 - 54 655 5 - 785 Provision 50 12 1,705 616 75 (160 ) 1,201 18 483 4,000 ALL balance at September 30, 2018 $ 3,605 $ 35 $ 3,458 $ 1,462 $ 323 $ 296 $ 1,859 $ 23 $ 627 $ 11,688 Individually evaluated for impairment $ 149 $ - $ - $ - $ - $ - $ 164 $ - $ - $ 313 Collectively evaluated for impairment 3,456 35 3,458 1,462 323 296 1,695 23 627 11,375 ALL balance at September 30, 2018 $ 3,605 $ 35 $ 3,458 $ 1,462 $ 323 $ 296 $ 1,859 $ 23 $ 627 $ 11,688 ALL balance at September 30, 2018 $ 3,605 $ 35 $ 3,458 $ 1,462 $ 323 $ 296 $ 1,859 $ 23 $ 627 $ 11,688 Charge-offs (330 ) - (185 ) (28 ) - (62 ) (1,233 ) (13 ) - (1,851 ) Recoveries 113 - 60 3 - 7 518 16 - 717 Provision 855 18 473 433 20 88 240 2 (53 ) 2,076 ALL balance at September 30, 2019 $ 4,243 $ 53 $ 3,806 $ 1,870 $ 343 $ 329 $ 1,384 $ 28 $ 574 $ 12,630 Individually evaluated for impairment $ 36 $ - $ 56 $ 6 $ - $ - $ 144 $ 6 $ - $ 248 Collectively evaluated for impairment 4,207 53 3,750 1,864 343 329 1,240 22 574 12,382 ALL balance at September 30, 2019 $ 4,243 $ 53 $ 3,806 $ 1,870 $ 343 $ 329 $ 1,384 $ 28 $ 574 $ 12,630
Summary of Troubled Debt Restructurings Granted	The following is a summary of troubled debt restructurings granted during the periods indicated (dollars in thousands). For the Year Ended September 30, 2019 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings Real estate loans: Residential 3 $ 259 $ 264 Construction - - - Commercial 2 159 159 Commercial - - - Obligations of states and political subdivisions - - - Home equity loans and lines of credit - - - Auto loans 2 36 36 Other - - - Total 7 $ 454 $ 459 For the Year Ended September 30, 2018 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Troubled debt restructurings Real estate loans: Residential 3 $ 446 $ 446 Construction - - - Commercial 2 123 123 Commercial - - - Obligations of states and political subdivisions - - - Home equity loans and lines of credit - - - Auto loans 4 35 35 Other - - - Total 9 $ 604 $ 604

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Sep. 30, 2019
Property Plant And Equipment [Abstract]
Composition of Premises and Equipment	Premises and equipment consist of the following (in thousands): 2019 2018 Land and land improvements $ 6,075 $ 6,044 Buildings and leasehold improvements 16,381 16,207 Furniture, fixtures, and equipment 12,098 11,687 Construction in process 18 - 34,572 33,938 Less accumulated depreciation (20,237 ) (19,337 ) Total $ 14,335 $ 14,601

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Sep. 30, 2019
Banking And Thrift [Abstract]
Schedule of Deposits and Respective Weighted-Average Interest Rates by Major Classifications	Deposits and their respective weighted-average interest rates consist of the following major classifications (dollars in thousands): 2019 2018 Weighted- Average Interest Rate Amount Weighted- Average Interest Rate Amount Noninterest-bearing demand accounts - % $ 175,932 - % $ 158,340 Interest bearing demand accounts 0.38 224,673 0.39 221,327 Money market accounts 1.28 364,635 0.89 296,078 Savings and club accounts 0.05 135,012 0.05 135,862 Certificates of deposit 1.90 442,578 1.76 525,248 Total 1.04 % $ 1,342,830 0.96 % $ 1,336,855 2019 2018 Weighted- Average Interest Rate Amount Weighted- Average Interest Rate Amount Certificates of deposit: 0.00 - 2.00% 1.64 % $ 283,988 1.59 % $ 395,583 2.01 - 4.00% 2.37 158,590 2.29 129,665 Total 1.90 % $ 442,578 1.76 % $ 525,248
Scheduled Maturities of Certificates of Deposit	At September 30, 2019 scheduled maturities of certificates of deposit are as follows (in thousands): 2020 $ 362,762 2021 33,758 2022 29,286 2023 7,895 2024 8,877 Total $ 442,578
Scheduled Maturities of Certificates of Deposit in Denominations	The scheduled maturities of certificates of deposit in denominations of $250,000 or more as of September 30, 2019, are as follows (in thousands): Within three months $ 4,742 Three through six months 10,692 Six through twelve months 14,075 Over twelve months 9,120 Total $ 38,629

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	12 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Schedule of Short-Term Borrowings	The following table sets forth information concerning short-term borrowings (in thousands): 2019 2018 Balance at year-end $ 107,701 $ 179,773 Maximum amount outstanding at any month-end 239,824 260,797 Average balance outstanding during the year 165,730 210,050 Weighted-average interest rate: As of year-end 2.35 % 2.31 % Paid during the year 2.10 % 1.86 %

Other Borrowings (Tables)

Other Borrowings (Tables)	12 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Contractual Maturities of FHLB Long-Term Advances	The following table presents contractual maturities of FHLB long-term advances (in thousands): Maturity Range Weighted- Average Stated Interest Rate Ranged Description From To Interest Rate From To 2019 2018 Fixed rate 10/22/2019 9/30/2024 1.79 1.33 2.85 $ 24,956 $ 74,827 Mid-term 11/29/2019 9/30/2022 2.48 1.66 2.87 115,625 43,896 Total $ 140,581 $ 118,723
Maturities of FHLB Long-Term Advances	Maturities of FHLB long-term advances are summarized as follows (in thousands): Year Ending September 30, Amount Weighted- Average Rate 2020 $ 60,846 2.38 % 2021 63,125 2.43 2022 9,500 2.20 2023 2,500 1.71 2024 4,610 1.77 Total 140,581 1.63

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Schedule of Provision for Income Taxes	The provision for income taxes consists of (in thousands): 2019 2018 Current: Federal $ 1,386 $ 1,086 State 3 6 Total current taxes 1,389 1,092 Deferred income tax benefit 1,026 890 Change in corporate tax rate — 3,682 Total income tax provision $ 2,415 $ 5,664
Schedule of Changes in Significant Portions of the Deferred Tax Assets and Deferred Tax Liabilities	The tax effects of deductible and taxable temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows (in thousands): 2019 2018 Deferred tax assets: Allowance for loan losses $ 2,652 $ 2,455 Adjustment to record funded status of pension plan 406 127 Investment losses subject to Section 382 limitation 2,203 2,510 Net unrealized loss on securities — 3,022 Net unrealized loss on derivatives 149 — Deferred compensation 274 290 Other real estate owned 148 152 Nonaccrual interest 110 163 Employee stock ownership plan 526 491 Alternative minimum tax — 604 Other 1,063 1,308 Total gross deferred tax assets 7,531 11,122 Deferred tax liabilities: Pension plan 775 675 Mortgage servicing rights 38 44 Premises and equipment 97 45 Net unrealized gain on securities 214 — Net unrealized gain on derivatives — 515 Low income housing tax credits 837 684 Other 448 718 Total gross deferred tax liabilities 2,409 2,681 Net deferred tax assets $ 5,122 $ 8,441
Schedule of Reconciliation of the Federal Statutory Rate and the Effective Income Tax Rate	The reconciliation of the federal statutory rate and the Company’s effective income tax rate is as follows (dollars in thousands): 2019 2018 Amount % of Pretax Income Amount % of Pretax Income Provision at statutory rate $ 3,158 21.0 % $ 2,961 24.3 % Income from bank-owned life insurance (204 ) (1.4 ) (243 ) (2.0 ) Tax-exempt income (406 ) (2.7 ) (421 ) (3.5 ) Low-income housing credits (196 ) (1.3 ) (167 ) (1.4 ) Tax rate change — — 3,682 30.2 Other, net 63 0.5 (148 ) (1.2 ) Actual tax expense and effective rate $ 2,415 16.1 % $ 5,664 46.4 %

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	12 Months Ended
	Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Components of Off Balance Sheet Commitments	The off-balance sheet commitments consist of the following (in thousands): 2019 2018 Commitments to extend credit $ 80,476 $ 112,037 Standby letters of credit 10,703 5,329 Unfunded lines of credit 106,704 96,618

Lease Commitments and Total R_2

Lease Commitments and Total Rental Expense (Tables)	12 Months Ended
	Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Future Minimum Lease Payments By Year and in the Aggregate	Future minimum lease payments by year and in the aggregate, under noncancellable operating leases, and not including common area maintenance charges, with initial or remaining terms of one year or more, consisted of the following at September 30, 2019 (in thousands): 2020 $ 852 2021 757 2022 674 2023 594 2024 460 2025 and beyond 935 Total $ 4,272

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
	Sep. 30, 2019
Postemployment Benefits [Abstract]
Components of the ESOP Shares	The following table presents the components of the ESOP shares: 2019 2018 Allocated shares 348,523 345,455 Shares committed to be released 33,962 33,962 Unreleased shares 781,120 826,403 Total ESOP shares 1,163,605 1,205,820 Fair value of unreleased shares (in thousands) $ 12,826 $ 13,437
Schedule of Nonvested Restricted Stock Option Activity	The following is a summary of the status of the Company’s nonvested restricted stock as of September 30, 2019, and changes therein during the year then ended: Number of Restricted Weighted- Average Grant Date Fair Value Nonvested at September 30, 2018 35,072 $ 15.37 Granted 37,236 16.23 Vested (32,225 ) 16.18 Forfeited (5,120 ) 15.87 Nonvested at September 30, 2019 34,963 $ 16.13
Summary of Change in Plan Assets and Benefit Obligation	The following table sets forth the change in plan assets and benefit obligation at September 30 (in thousands): 2019 2018 Change in benefit projected obligation: Projected benefit obligation at beginning of year $ 17,111 $ 18,598 Service cost - - Interest cost 693 698 Actuarial (gains) losses 807 (204 ) Curtailments - - Benefits paid (974 ) (1,981 ) Projected benefit obligation at end of year 17,637 17,111 Change in plan assets: Fair value of plan assets at beginning of year 19,720 20,363 Actual return on plan assets 649 1,338 Contributions - - Benefits paid (974 ) (1,981 ) Fair value of plan assets at end of year 19,395 19,720 Funded status $ 1,758 $ 2,609
Summary of the Components of Net Periodic Pension Cost	Amounts not yet recognized as a component of net periodic pension cost (in thousands): 2019 2018 Amounts recognized in accumulated other comprehensive loss consist of: Net loss $ 1,933 $ 604
Summary of the Components of Net Periodic Benefit Cost	The following table comprises the components of net periodic benefit cost for the years ended September 30 (in thousands): 2019 2018 Service cost $ - $ - Interest cost 693 698 Expected return on plan assets (1,171 ) (1,193 ) Amortization of unrecognized loss - - Net periodic (benefit) cost $ (478 ) $ (495 )
Schedule of Weighted-Average Assumptions	Weighted-average assumptions used to determine benefit obligations: 2019 2018 Discount rate 3.00 % 4.10 % Rate of compensation increase N/A N/A
Schedule of Assumptions Used to Determine Net Periodic Benefit Cost	Weighted-average assumptions used to determine net periodic benefit cost for the years ended: 2019 2018 Discount rate 4.10 % 3.85 % Expected long-term return on plan assets 6.00 % 6.00 Rate of compensation increase N/A N/A
Summary of the Plan's Financial Assets at Fair Value, within the Fair Value Hierarchy	The following tables set forth by level, within the fair value hierarchy, the plan’s financial assets at fair value as of September 30, 2019 and 2018 (in thousands): September 30, 2019 Level I Level II Level III Total Assets: Investment in collective trusts Fixed income $ - $ 7,736 $ - $ 7,736 Equity - 11,620 - 11,620 Investment in short-term investments - 39 - 39 Total assets at fair value $ - $ 19,395 $ - $ 19,395 September 30, 2018 Level I Level II Level III Total Assets: Investment in collective trusts Fixed income $ - $ 7,916 $ - $ 7,916 Equity - 11,789 - 11,789 Investment in short-term investments - 15 - 15 Total assets at fair value $ - $ 19,720 $ - $ 19,720
The Bank's Defined Benefit Pension Plan Weighted-Average Asset Allocations	The Bank’s defined benefit pension plan weighted-average asset allocations at September 30, 2019 and 2018 by asset category, are as follows: September 30, Asset Category 2019 2018 Fixed income securities 39.9 % 40.1 % Equity securities 59.9 59.8 Other 0.2 0.1 Total 100.0 % 100.0 %
Summary of Estimated Future Benefit Payments	Estimated future benefit payments, which reflect expected future service, as appropriate, are as follows (in thousands): 2020 $ 2,707 2021 2,162 2022 571 2023 742 2024 633 2025-2029 5,370

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	12 Months Ended
	Sep. 30, 2019
Banking And Thrift [Abstract]
The Bank's Actual Capital Ratios	The Bank’s actual capital ratios are presented in the following table (dollars in thousands): 2019 2018 Amount Ratio Amount Ratio Total capital (to risk-weighted assets) Actual $ 184,214 14.0 % $ 180,203 13.6 % For capital adequacy purposes 105,281 8.0 105,926 8.0 To be well capitalized 131,602 10.0 132,407 10.0 Tier 1 capital (to risk-weighted assets) Actual $ 171,532 13.0 % $ 168,161 12.7 % For capital adequacy purposes 78,961 6.0 79,444 6.0 To be well capitalized 105,281 8.0 105,926 8.0 Common equity tier 1 capital (to risk-weighted assets) Actual $ 171,532 13.0 % $ 168,161 12.7 % For capital adequacy purposes 59,221 4.5 59,583 4.5 To be well capitalized 85,541 6.5 86,065 6.5 Tier 1 capital (to adjusted assets) Actual $ 171,532 9.7 % $ 168,161 9.2 % For capital adequacy purposes 70,979 4.0 72,456 4.0 To be well capitalized 88,724 5.0 90,570 5.0

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Schedule of Fair Value For Assets Required to be Measured and Reported at Fair Value on a Recurring Basis	The following tables provide the fair value for assets required to be measured and reported at fair value on a recurring basis on the Consolidated Balance Sheet as of September 30, 2019 and September 30, 2018 by level within the fair value hierarchy (in thousands). Reoccurring Fair Value Measurements at Reporting Date September 30, 2019 Level I Level II Level III Total Assets: Investment securities available for sale: Mortgage-backed securities $ - $ 226,440 $ - $ 226,440 Obligations of states and political subdivisions - 20,212 - 20,212 U.S. government agency securities - 6,688 - 6,688 Corporate obligations - 35,342 7,792 43,134 Other debt securities - 16,919 - 16,919 Total debt securities - 305,601 7,792 313,393 Equity securities - financial services 25 - - 25 Derivatives and hedging activities - 303 - 303 Liabilities: Derivatives and hedging activities - 1,011 - 1,011 September 30, 2018 Level I Level II Level III Total Assets: Investment securities available for sale: Mortgage-backed securities $ - $ 258,123 $ - $ 258,123 Obligations of states and political subdivisions - 40,949 - 40,949 U.S. government agency securities - 5,558 - 5,558 Corporate obligations - 39,677 7,738 47,415 Other debt securities - 19,373 - 19,373 Equity securities - financial services 20 - - 20 Total securities 20 363,680 7,738 371,438 Derivatives and hedging activities - 2,452 - 2,452
Schedule of Changes in Fair Value of Level III Investments	The following tables present a summary of changes in the fair value of the Company’s Level III investments for years ended September 30, 2019 and 2018 (in thousands). Fair Value Measurement Using Significant Unobservable Inputs (Level III) September 30, 2019 September 30, 2018 Beginning balance $ 7,738 $ 7,224 Purchases, sales, issuances, settlements, net - 500 Total unrealized gain: Included in earnings - - Included in other comprehensive income 54 14 Transfers into Level III - - Transfers out of Level III - - $ 7,792 $ 7,738
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 III Fair Value Measurements Fair Value Estimate Valuation Techniques Unobservable Input Range (Weighted September 30, 2019 Impaired loans $ 8,128 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 35% (20.3%) Foreclosed real estate owned 240 Appraisal of collateral (1) Appraisal adjustments (2) 20% to 35% (26.6%) September 30, 2018 Impaired loans $ 11,557 Appraisal of collateral (1) Appraisal adjustments (2) 0% to 35% (25.3%) Foreclosed real estate owned 1,141 Appraisal of collateral (1) Appraisal adjustments (2) 20% to 46% (23.7%) (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 Assets and Liabilities not Required to be Measured and Reported at Fair Value	The methods and assumptions used by the Company in estimating fair values of financial instruments at September 30, 2019 is in accordance with ASC Topic 825, Financial Instruments September 30, 2019 Carrying Value Level I Level II Level III Total Fair Value Financial assets: Cash and cash equivalents $ 52,242 $ 52,242 $ - $ - $ 52,242 Loans receivable, net 1,328,653 - - 1,313,231 1,313,231 Accrued interest receivable 6,225 6,225 - - 6,225 Regulatory stock 11,579 11,579 - - 11,579 Mortgage servicing rights 177 - - 241 241 Bank-owned life insurance 39,601 39,601 - - 39,601 Financial liabilities: Deposits $ 1,342,830 $ 900,252 $ - $ 443,063 $ 1,343,315 Short-term borrowings 107,701 107,701 - - 107,701 Other borrowings 140,581 - - 141,427 141,427 Advances by borrowers for taxes and insurance 6,700 6,700 - - 6,700 Accrued interest payable 1,384 1,384 - - 1,384 September 30, 2018 Carrying Value Level I Level II Level III Total Fair Value Financial assets: Cash and cash equivalents $ 43,539 $ 43,539 $ - $ - $ 43,539 Certificates of deposit 500 - - 505 505 Loans receivable, net 1,305,071 - - 1,269,127 1,269,127 Accrued interest receivable 6,640 6,640 - - 6,640 Regulatory stock 12,973 12,973 - - 12,973 Mortgage servicing rights 206 - - 340 340 Bank-owned life insurance 38,630 38,630 - - 38,630 Financial liabilities: Deposits $ 1,336,855 $ 811,607 $ - $ 520,861 $ 1,332,468 Short-term borrowings 179,773 179,773 - - 179,773 Other borrowings 118,723 - - 117,920 117,920 Advances by borrowers for taxes and insurance 6,826 6,826 - - 6,826 Accrued interest payable 1,369 1,369 - - 1,369

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Summary of Activity in Accumulated Other Comprehensive Income (Loss)	The activity in accumulated other comprehensive income (loss) for the years ended September 30, 2019 and 2018, is as follows (in thousands): Accumulated Other Comprehensive Income (Loss) (1) Defined Benefit Pension Plan Unrealized Gains (Losses) on Securities Available for Sale Derivatives Total Balance at September 30, 2018 $ (477 ) $ (11,369 ) $ 1,936 $ (9,910 ) Other comprehensive income (loss) before reclassifications (1,050 ) 12,207 (1,758 ) 9,399 Amounts reclassified from accumulated other comprehensive loss - (35 ) (738 ) (773 ) Reclassification of certain income tax effects from other comprehensive income - 4 - 4 Period change (1,050 ) 12,176 (2,496 ) 8,630 Balance at September 30, 2019 $ (1,527 ) $ 807 $ (560 ) $ (1,280 ) Balance at September 30, 2017 $ (628 ) $ (927 ) $ 801 $ (754 ) Other comprehensive income before reclassifications 275 (9,883 ) 1,269 (8,339 ) Pension plan curtailment - (123 ) (348 ) (471 ) Reclassification of certain income tax effects from other comprehensive income (124 ) (436 ) 214 (346 ) Period change 151 (10,442 ) 1,135 (9,156 ) Balance at September 30, 2018 $ (477 ) $ (11,369 ) $ 1,936 $ (9,910 ) (1) All amounts are net of tax. Related income tax expense or benefit is calculated using an income tax rate approximating 21.0 % in Fiscal 2019 and 24.3% in Fiscal 2018.
Summary of Reclassification Out of Accumulated Other Comprehensive Income (Loss)	Details About Accumulated Other Comprehensive Loss Components Amount Reclassified from Accumulated Other Comprehensive Loss For the Year Ended September 30, (3) Affected Line Item in the Consolidated (in thousands) 2019 2018 Statement of Income Securities available for sale (1) Net securities gains reclassified into earnings $ 44 $ 162 Gain on sale of investment securities, net Related income tax expense (9 ) (39 ) Income taxes Net effect on accumulated other comprehensive loss for the period 35 123 Net of tax Derivatives and Hedging Activities (2) Interest expense, effective portion 934 459 Interest expense Related income tax expense (196 ) (111 ) Income taxes Net effect on accumulated other comprehensive loss for the period 738 348 Total reclassifications for the period $ 773 $ 471 (1) For additional details related to unrealized gains on securities and related amounts reclassified from accumulated other comprehensive income (loss) see Note 3, “Investment Securities.” (2) Included in the computation of net periodic pension cost. See Note 12, “Employee Benefits” for additional detail. (3) For additional details related to derivative financial instruments see Note18, “Derivatives and Hedging Activities.” (4) Amounts in parenthesis indicate debits.

Derivatives and Hedging Activit

Derivatives and Hedging Activities (Tables)	12 Months Ended
	Sep. 30, 2019
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 well as their classification on the Consolidated Balance Sheet as of September 30, 2019 and 2018, (in thousands). Fair Values of Derivative Instruments Asset Derivatives As of September 30, 2019 As of September 30, 2018 Notional Amount Balance Sheet Location Fair Value Notional Amount Balance Sheet Location Fair Value Derivatives designated as hedging instruments Interest Rate Products $50,000 Other Assets $303 $100,000 Other Assets $2,452 Total derivatives designated as hedging instruments $303 $2,452 Fair Values of Derivative Instruments Liability Derivatives As of September 30, 2019 As of September 30, 2018 Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments Interest Rate Products $85,000 Other Liabilities $1,011 Other Liabilities $- Total derivatives designated as hedging instruments $1,011 $-
Schedule of Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income	The table below presents the effect of the Company’s cash flow hedge accounting on Accumulated Other Comprehensive Income for the periods ended September 30, 2019 and 2018 (in thousands). The Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income Derivatives in Hedging Relationships Amount of Gain Recognized in OCI on Derivative Amount of Gain Reclassified from Accumulated OCI into Income Year Ended September 30, Year Ended September 30, Location of Gain Reclassified from Year Ended September 30, Year Ended September 30, 2019 2018 Accumulated OCI into Income 2019 2018 Derivatives in Cash Flow Hedging Relationships Interest Rate Products $ 3,160 $ 1,237 Interest Expense $ 934 $ 459 Total $ 3,160 $ 1,237 $ 934 $ 459

Parent Company (Tables)

Parent Company (Tables)	12 Months Ended
	Sep. 30, 2019
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Condensed Balance Sheet	Condensed financial statements of ESSA Bancorp, Inc. are as follows (in thousands): CONDENSED BALANCE SHEET September 30, 2019 2018 ASSETS Cash and due from banks $ 2,354 $ 3,713 Equity securities 25 20 Investment in subsidiary 185,119 173,431 Premises and equipment, net 421 431 Other assets 1,702 1,705 TOTAL ASSETS $ 189,621 $ 179,300 LIABILITIES AND STOCKHOLDERS’ EQUITY Other liabilities $ 113 $ 114 Stockholders’ equity 189,508 179,186 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 189,621 $ 179,300
Condensed Statement of Income	CONDENSED STATEMENT OF INCOME Year Ended September 30, 2019 2018 INCOME Interest income $ 614 $ 517 Unrealized gain on equity securities 5 - Dividends 10,000 - Total income 10,619 517 EXPENSES Professional fees 427 431 Other 29 388 Total expenses 456 819 Income (loss) before income tax expense 10,163 (302 ) Income tax expense benefit 58 (73 ) Income (loss) before equity in undistributed net earnings of subsidiary 10,105 (229 ) Equity in undistributed net earnings of subsidiary 2,518 6,760 NET INCOME $ 12,623 $ 6,531 COMPREHENSIVE INCOME(LOSS) $ 21,249 $ (2,279 )
Condensed Statement of Cash Flows	CONDENSED STATEMENT OF CASH FLOWS Year Ended September 30, 2019 2018 OPERATING ACTIVITIES Net income $ 12,623 $ 6,531 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net earnings of subsidiary (2,518 ) (6,760 ) Provision for depreciation 10 23 (Increase) decrease in accrued income taxes (58 ) 73 Increase in accrued interest receivable (61 ) (56 ) Deferred federal income taxes 1 2 Loss on disposal of fixed assets - 340 Other, net 707 564 Net cash provided by operating activities 10,704 717 INVESTING ACTIVITIES Sale of premises, equipment and software - 299 Net cash provided by investing activities - 299 FINANCING ACTIVITIES Purchase of treasury stock shares (7,797 ) 1,575 Dividends on common stock (4,266 ) (3,912 ) Net cash used for financing activities (12,063 ) (2,337 ) Decrease in cash (1,359 ) (1,321 ) CASH AT BEGINNING OF YEAR 3,713 5,034 CASH AT END OF YEAR $ 2,354 $ 3,713

Selected Quarterly Data (Unau_2

Selected Quarterly Data (Unaudited) (Tables)	12 Months Ended
	Sep. 30, 2019
Quarterly Financial Information Disclosure [Abstract]
Summary of Selected Quarterly Data	Three Months Ended December 31, 2018 March 31, 2019 June 30, 2019 September 30, 2019 Total interest income $ 16,869 $ 17,128 $ 17,000 $ 16,762 Total interest expense 4,984 5,396 5,285 5,084 Net interest income 11,885 11,732 11,715 11,678 Provision for loan losses 876 600 400 200 Net interest income after provision for loan losses 11,009 11,132 11,315 11,478 Total noninterest income 2,126 2,068 1,862 2,101 Total noninterest expense 9,652 9,711 9,518 9,172 Income before income taxes 3,483 3,489 3,659 4,407 Income taxes benefit 474 630 612 699 Net income $ 3,009 $ 2,859 $ 3,047 $ 3,708 Per share data: Net income Basic $ 0.27 $ 0.26 $ 0.29 $ 0.35 Diluted $ 0.27 $ 0.26 $ 0.29 $ 0.35 Average shares outstanding Basic 10,951,356 10,825,626 10,574,407 10,562,770 Diluted 10,951,356 10,825,626 10,574,407 10,562,771 Three Months Ended December 31, 2017 March 31, 2018 June 30, 2018 September 30, 2018 Total interest income $ 15,376 $ 15,847 $ 16,718 $ 16,562 Total interest expense 3,608 3,912 4,156 4,592 Net interest income 11,768 11,935 12,562 11,970 Provision for loan losses 1,000 1,100 975 925 Net interest income after provision for loan losses 10,768 10,835 11,587 11,045 Total noninterest income 1,969 1,945 1,897 2,002 Total noninterest expense 10,282 9,988 10,163 9,420 Income before income taxes 2,455 2,792 3,321 3,627 Income taxes expense 4,093 529 500 542 Net income $ (1,638 ) $ 2,263 $ 2,821 $ 3,085 Per share data: Net income Basic $ (0.15 ) $ 0.21 $ 0.26 $ 0.28 Diluted $ (0.15 ) $ 0.21 $ 0.26 $ 0.28 Average shares outstanding Basic 10,717,138 10,796,353 10,911,469 10,970,947 Diluted 10,717,138 10,822,109 10,922,860 10,970,947

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	Oct. 01, 2018	Sep. 30, 2019	Sep. 30, 2018
Summary Of Significant Accounting Policies [Line Items]
Days past due over which loans are considered as substandard		90 days
Total servicing assets included in other assets		$ 177,000	$ 206,000
Goodwill and Intangible Assets Impairment		$ 0	$ 0
Threshold percentage minimum for recognition upon settlement		Greater than 50%
Right-of-use assets	$ 5,800,000
Lease liabilities	5,800,000
ASU 2016-01 [Member]
Summary Of Significant Accounting Policies [Line Items]
Reclassification from accumulated other comprehensive income to retained earnings	$ 4,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation range for buildings, land improvements, and leasehold improvements		10 years
Depreciation range for furniture, fixtures, and equipment		3 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Depreciation range for buildings, land improvements, and leasehold improvements		40 years
Depreciation range for furniture, fixtures, and equipment		7 years
Cash equivalents interest bearing deposits with original maturities		90 days
Troubled Debt Restructuring [Member]
Summary Of Significant Accounting Policies [Line Items]
Days past due over which loans are considered as substandard		180 days
Federal Home Loan Bank System [Member]
Summary Of Significant Accounting Policies [Line Items]
Loan receivables contractual period for interest and principal accrual		90 days
Percentage Investment in capital stock		0.10%
Investment on outstanding Borrowings, percentage		4.00%
Stock bought and sold based upon par value		$ 100
ESSA Advisory Services, LLC [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage ownership of wholly owned subsidiary		100.00%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Carrying Amount of Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Goodwill
Balance at beginning of year	$ 13,801	$ 13,801
Balance at end of year	13,801	13,801
Intangible assets
Balance at beginning of year	1,375	1,844
Amortization	(309)	(469)
Balance at end of year	$ 1,066	$ 1,375

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 309	$ 469
Core Deposit Intangible [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,787
Accumulated Amortization	$ 3,721	$ 3,412

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Estimated Future Amortization Expense (Detail) $ in Thousands	Sep. 30, 2019USD ($)
Accounting Policies [Abstract]
2020	$ 275
2021	272
2022	239
2023	190
2024	90
Total estimated future amortization of expense	$ 1,066

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								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Weighted-average common shares outstanding									18,133,095	18,133,095
Average treasury stock shares									(6,562,435)	(6,420,854)
Average unearned ESOP shares									(792,073)	(837,342)
Average unearned nonvested shares									(45,421)	(41,055)
Weighted-average common shares and common stock equivalents used to calculate basic earnings per share	10,562,770	10,574,407	10,825,626	10,951,356	10,970,947	10,911,469	10,796,353	10,717,138	10,733,166	10,833,844
Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share	10,562,771	10,574,407	10,825,626	10,951,356	10,970,947	10,922,860	10,822,109	10,717,138	10,733,166	10,833,844

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - Stock Option [Member] - $ / shares	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	34,122	37,968
Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average weighted price per share of anti-dilutive shares	$ 14.47	$ 13.52
Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average weighted price per share of anti-dilutive shares	$ 16.57	$ 16.56

Investment Securities - Summary

Investment Securities - Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Investment Securities Available for Sale (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	$ 312,372
Available for sale, Fair Value	313,393	$ 371,438
Available for sale equity securities, Amortized Cost		25
Available for sale equity securities, Gross Unrealized Losses		(5)
Available for sale equity securities, Fair Value	25	20
Available for sale equity and debt securities, Amortized Cost		385,831
Available for sale equity and debt securities, Gross Unrealized Gains		388
Available for sale equity and debt securities, Gross Unrealized Losses		(14,781)
Available for sale equity and debt securities, Fair Value		371,438
Fannie Mae [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	126,672	147,433
Available for sale, Gross Unrealized Gains	987	17
Available for sale, Gross Unrealized Losses	(554)	(5,827)
Available for sale, Fair Value	127,105	141,623
Freddie Mac [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	80,639	99,587
Available for sale, Gross Unrealized Gains	453	2
Available for sale, Gross Unrealized Losses	(331)	(4,415)
Available for sale, Fair Value	80,761	95,174
Governmental National Mortgage Association Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	18,590	22,164
Available for sale, Gross Unrealized Gains	182
Available for sale, Gross Unrealized Losses	(198)	(838)
Available for sale, Fair Value	18,574	21,326
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	225,901	269,184
Available for sale, Gross Unrealized Gains	1,622	19
Available for sale, Gross Unrealized Losses	(1,083)	(11,080)
Available for sale, Fair Value	226,440	258,123
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	19,860	42,090
Available for sale, Gross Unrealized Gains	356	251
Available for sale, Gross Unrealized Losses	(4)	(1,392)
Available for sale, Fair Value	20,212	40,949
U.S. Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	6,454	5,678
Available for sale, Gross Unrealized Gains	234	2
Available for sale, Gross Unrealized Losses		(122)
Available for sale, Fair Value	6,688	5,558
Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	43,121	48,559
Available for sale, Gross Unrealized Gains	594	116
Available for sale, Gross Unrealized Losses	(581)	(1,260)
Available for sale, Fair Value	43,134	47,415
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	17,036	20,295
Available for sale, Gross Unrealized Gains	84
Available for sale, Gross Unrealized Losses	(201)	(922)
Available for sale, Fair Value	16,919	19,373
Total Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	312,372	385,806
Available for sale, Gross Unrealized Gains	2,890	388
Available for sale, Gross Unrealized Losses	(1,869)	(14,776)
Available for sale, Fair Value	$ 313,393	$ 371,418

Investment Securities - Additio

Investment Securities - Additional Information (Detail) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Amortized Cost And Fair Value Debt Securities [Abstract]
Equity Securities Fv Ni	$ 25,000	$ 20,000
Unrealized loss net of tax recognized inAOCI		4,000
Realized gross gains	268,000	511,000
Proceeds from the sale of investment securities	45,721,000	37,889,000
Realized gross losses	224,000	349,000
Investment securities with carrying values	$ 192,530,000	$ 256,317,000

Investment Securities - Summa_2

Investment Securities - Summary of Unrealized and Realized Gains Losses Recognized in Net Income on Equity Securities (Detail) $ in Thousands	12 Months Ended
	Sep. 30, 2019USD ($)
Investments Debt And Equity Securities [Abstract]
Net gains recognized during the period on equity securities	$ 5
Unrealized gains recognized during the reporting period on equity securities still held at the reporting date	$ 5

Investment Securities - Schedul

Investment Securities - Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due after one year through five years, Amortized Cost	$ 19,667
Due after five years through ten years, Amortized Cost	86,380
Due after ten years, Amortized Cost	206,325
Available for sale, Amortized Cost	312,372
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due after one year through five years, Fair Value	20,004
Due after five years through ten years, Fair Value	86,819
Due after ten years, Fair Value	206,570
Total, Fair Value	$ 313,393	$ 371,438

Investment Securities - Sched_2

Investment Securities - Schedule of Gross Unrealized Losses and Fair Value (Detail) $ in Thousands	Sep. 30, 2019USD ($)Security	Sep. 30, 2018USD ($)Security
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	121
Fair Value, Less than Twelve Months, Debt	$ 14,393
Gross Unrealized Losses, Less than Twelve Months, Debt	(32)
Fair Value, Twelve Months or Greater, Debt	101,917
Gross Unrealized Losses, Twelve Months or Greater, Debt	(1,837)
Fair Value Total, Debt	116,310
Gross Unrealized Losses Total, Debt	$ (1,869)
Number of Securities, Equity securities | Security		1
Fair Value, Less than Twelve Months, Equity securities		$ 20
Gross Unrealized Losses, Less than Twelve Months, Equity securities		(5)
Fair Value Total, Equity securities		20
Gross Unrealized Losses Total, Equity securities		$ (5)
Number of Securities, Equity securities and Debt securities | Security		276
Fair Value, Less than Twelve Months, Equity and Debt securities		$ 138,094
Gross Unrealized Losses, Less than Twelve Months, Equity and Debt securities		(3,047)
Fair Value, Twelve Months or Greater, Equity and Debt securities		203,329
Gross Unrealized Losses, Twelve Months or Greater, Equity and Debt securities		(11,734)
Fair Value Total, Equity and Debt securities		341,423
Gross Unrealized Losses Total, Equity and Debt securities		$ (14,781)
Fannie Mae [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	48	100
Fair Value, Less than Twelve Months, Debt	$ 5,568	$ 63,997
Gross Unrealized Losses, Less than Twelve Months, Debt	(6)	(1,442)
Fair Value, Twelve Months or Greater, Debt	45,867	74,783
Gross Unrealized Losses, Twelve Months or Greater, Debt	(548)	(4,385)
Fair Value Total, Debt	51,435	138,780
Gross Unrealized Losses Total, Debt	$ (554)	$ (5,827)
Freddie Mac [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	32	74
Fair Value, Less than Twelve Months, Debt	$ 765	$ 28,902
Gross Unrealized Losses, Less than Twelve Months, Debt		(830)
Fair Value, Twelve Months or Greater, Debt	29,661	65,812
Gross Unrealized Losses, Twelve Months or Greater, Debt	(331)	(3,585)
Fair Value Total, Debt	30,426	94,714
Gross Unrealized Losses Total, Debt	$ (331)	$ (4,415)
Governmental National Mortgage Association Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	12	19
Fair Value, Less than Twelve Months, Debt	$ 345	$ 9,776
Gross Unrealized Losses, Less than Twelve Months, Debt	(1)	(142)
Fair Value, Twelve Months or Greater, Debt	8,242	11,550
Gross Unrealized Losses, Twelve Months or Greater, Debt	(197)	(696)
Fair Value Total, Debt	8,587	21,326
Gross Unrealized Losses Total, Debt	$ (198)	$ (838)
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	2	25
Fair Value, Less than Twelve Months, Debt	$ 2,159	$ 7,651
Gross Unrealized Losses, Less than Twelve Months, Debt	(4)	(105)
Fair Value, Twelve Months or Greater, Debt		21,004
Gross Unrealized Losses, Twelve Months or Greater, Debt		(1,287)
Fair Value Total, Debt	2,159	28,655
Gross Unrealized Losses Total, Debt	$ (4)	$ (1,392)
Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	13	34
Fair Value, Less than Twelve Months, Debt	$ 2,063	$ 20,172
Gross Unrealized Losses, Less than Twelve Months, Debt	(5)	(363)
Fair Value, Twelve Months or Greater, Debt	12,015	13,206
Gross Unrealized Losses, Twelve Months or Greater, Debt	(576)	(897)
Fair Value Total, Debt	14,078	33,378
Gross Unrealized Losses Total, Debt	$ (581)	$ (1,260)
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security	14	20
Fair Value, Less than Twelve Months, Debt	$ 3,493	$ 2,399
Gross Unrealized Losses, Less than Twelve Months, Debt	(16)	(38)
Fair Value, Twelve Months or Greater, Debt	6,132	16,974
Gross Unrealized Losses, Twelve Months or Greater, Debt	(185)	(884)
Fair Value Total, Debt	9,625	19,373
Gross Unrealized Losses Total, Debt	$ (201)	$ (922)
U.S. Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Debt | Security		3
Fair Value, Less than Twelve Months, Debt		$ 5,177
Gross Unrealized Losses, Less than Twelve Months, Debt		(122)
Fair Value Total, Debt		5,177
Gross Unrealized Losses Total, Debt		$ (122)

Loans Receivable - Summary of L

Loans Receivable - Summary of Loans Receivable (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Real estate loans:
Total Loans	$ 1,341,283	$ 1,316,759
Less allowance for loan losses	12,630	11,688	$ 9,365
Net loans	1,328,653	1,305,071
Obligations of States and Political Subdivisions [Member]
Real estate loans:
Total Loans	71,828	73,362
Less allowance for loan losses	343	323	248
Home Equity Loans and Lines of Credit [Member]
Real estate loans:
Total Loans	45,156	43,962
Less allowance for loan losses	329	296	470
Auto Loans [Member]
Real estate loans:
Total Loans	81,983	146,220
Less allowance for loan losses	1,384	1,859	1,836
Other [Member]
Real estate loans:
Total Loans	2,924	2,682
Less allowance for loan losses	28	23	21
Residential [Member] | Real Estate Loans [Member]
Real estate loans:
Total Loans	597,514	580,561
Less allowance for loan losses	4,243	3,605	3,878
Construction [Member] | Real Estate Loans [Member]
Real estate loans:
Total Loans	5,672	3,920
Less allowance for loan losses	53	35	23
Commercial [Member] | Real Estate Loans [Member]
Real estate loans:
Total Loans	480,647	416,573
Less allowance for loan losses	3,806	3,458	1,758
Commercial Loans [Member]
Real estate loans:
Total Loans	55,559	49,479
Less allowance for loan losses	$ 1,870	$ 1,462	$ 987

Loans Receivable - Changes in A

Loans Receivable - Changes in Accretable Yield for Purchased Credit-Impaired Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Receivables [Abstract]
Balance at beginning of period	$ 107	$ 471
Reclassification and other	0	681
Accretion	(41)	(1,045)
Balance at end of period	$ 66	$ 107

Loans Receivable - Additional I

Loans Receivable - Additional Information (Detail)	3 Months Ended								12 Months Ended
	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 30, 2019USD ($)Contract	Sep. 30, 2018USD ($)Contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reclassifications of nonaccretable discounts									$ 0	$ 681,000
Allowance for loan losses recorded for acquired loans									77,000	68,000
Mortgage loans serviced for others									85,743,000	72,043,000
Purchased impaired loans and non accrual loans	$ 10,063,000				$ 10,511,000				10,063,000	10,511,000
Additional interest income under loan agreements									$ 277,000	171,000
Criteria in internal rating system									Ten-point
Categories considered as not criticized									six
Days past due over which loans are considered as substandard									90 days
Minimum internal review amount	1,000,000								$ 1,000,000
Minimum external review amount	1,000,000								1,000,000
Minimum external review criticized relationships amount	500,000								500,000
Provision for loan losses	200,000	$ 400,000	$ 600,000	$ 876,000	$ 925,000	$ 975,000	$ 1,100,000	$ 1,000,000	$ 2,076,000	$ 4,000,000
Number of Contracts | Contract									7	9
Number of troubled debt restructuring loans granted terms and rate concessions | Contract									4	6
Troubled debt restructurings granted terms and rate concession									$ 345,000	$ 278,000
Number of troubled debt restructuring loans granted terms concessions | Contract									2	3
Troubled debt restructurings granted terms concession									$ 29,000	$ 326,000
Number of troubled debt restructuring loans granted interest rate concession | Contract									1
Troubled debt restructurings loans granted interest rate concession									$ 80,000
Number of troubled debt restructurings, loan modified, defaulted within one year of modification | Contract									0	1
Troubled debt restructurings, loan modified, defaulted within one year of modification										$ 76,000
Consumer Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed assets	225,000								$ 225,000
Formal foreclosure proceeding assets	$ 2,000,000								2,000,000
Auto Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan losses									$ 1,200,000	$ 240,000
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of unallocated allowance	10.00%								10.00%

Loans Receivable - Summary of A

Loans Receivable - Summary of Additional Information Regarding Loans Acquired and Accounted (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount	$ 1,341,283	$ 1,316,759
Loans Acquired with Deteriorated Credit Quality [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	1,392	2,497
Carrying amount	$ 1,299	$ 1,802

Loans Receivable - Schedule of

Loans Receivable - Schedule of Loans Evaluated for Impairment (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 1,341,283	$ 1,316,759
Individually Evaluated for Impairment	8,376	11,870
Collectively Evaluated for Impairment	1,331,608	1,303,087
Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,299	1,802
Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	71,828	73,362
Collectively Evaluated for Impairment	71,828	73,362
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	45,156	43,962
Individually Evaluated for Impairment	400	114
Collectively Evaluated for Impairment	44,756	43,848
Auto Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	81,983	146,220
Individually Evaluated for Impairment	583	445
Collectively Evaluated for Impairment	81,400	145,775
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,924	2,682
Individually Evaluated for Impairment	31	17
Collectively Evaluated for Impairment	2,893	2,665
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	597,514	580,561
Individually Evaluated for Impairment	4,281	5,317
Collectively Evaluated for Impairment	593,233	575,244
Construction [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	5,672	3,920
Collectively Evaluated for Impairment	5,672	3,920
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	480,647	416,573
Individually Evaluated for Impairment	2,633	5,892
Collectively Evaluated for Impairment	476,715	408,880
Commercial [Member] | Real Estate Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,299	1,801
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	55,559	49,479
Individually Evaluated for Impairment	448	85
Collectively Evaluated for Impairment	$ 55,111	49,393
Commercial Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans		$ 1

Loans Receivable - Schedule o_2

Loans Receivable - Schedule of Investment and Unpaid Principal Balances for Impaired Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 8,376	$ 11,870
Unpaid Principal Balance	12,146	15,014
Associated Allowance	248	313
Average Recorded Investment	10,200	13,197
Interest Income Recognized	62	366
With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,250	10,644
Unpaid Principal Balance	10,788	13,701
Average Recorded Investment	8,415	11,712
Interest Income Recognized	62	366
With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,126	1,226
Unpaid Principal Balance	1,358	1,313
Associated Allowance	248	313
Average Recorded Investment	1,785	1,485
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	400	114
Unpaid Principal Balance	465	138
Average Recorded Investment	240	174
Interest Income Recognized		1
Home Equity Loans and Lines of Credit [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	400	114
Unpaid Principal Balance	465	138
Average Recorded Investment	224	161
Interest Income Recognized		1
Home Equity Loans and Lines of Credit [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	16	13
Auto Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	583	445
Unpaid Principal Balance	674	598
Associated Allowance	144	164
Average Recorded Investment	327	351
Interest Income Recognized	2	1
Auto Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	161	87
Unpaid Principal Balance	248	223
Average Recorded Investment	107	150
Interest Income Recognized	2	1
Auto Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	422	358
Unpaid Principal Balance	426	375
Associated Allowance	144	164
Average Recorded Investment	220	201
Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	31	17
Unpaid Principal Balance	39	25
Associated Allowance	6
Average Recorded Investment	14	27
Other [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	15	17
Unpaid Principal Balance	22	25
Average Recorded Investment	13	27
Other [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	16
Unpaid Principal Balance	17
Associated Allowance	6
Average Recorded Investment	1
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,281	5,317
Unpaid Principal Balance	5,707	7,114
Associated Allowance	36	149
Average Recorded Investment	4,434	5,450
Interest Income Recognized	5	27
Residential [Member] | Real Estate Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,935	4,449
Unpaid Principal Balance	5,309	6,176
Average Recorded Investment	3,657	4,192
Interest Income Recognized	5	27
Residential [Member] | Real Estate Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	346	868
Unpaid Principal Balance	398	938
Associated Allowance	36	149
Average Recorded Investment	777	1,258
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,633	5,892
Unpaid Principal Balance	4,563	6,790
Associated Allowance	56
Average Recorded Investment	4,287	6,445
Interest Income Recognized	54	279
Commercial [Member] | Real Estate Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,385	5,892
Unpaid Principal Balance	4,269	6,790
Average Recorded Investment	4,129	6,432
Interest Income Recognized	54	279
Commercial [Member] | Real Estate Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	248
Unpaid Principal Balance	294
Associated Allowance	56
Average Recorded Investment	158	13
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	448	85
Unpaid Principal Balance	698	349
Associated Allowance	6
Average Recorded Investment	898	750
Interest Income Recognized	1	58
Commercial Loans [Member] | With no Specific Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	354	85
Unpaid Principal Balance	475	349
Average Recorded Investment	285	750
Interest Income Recognized	1	$ 58
Commercial Loans [Member] | With an Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	94
Unpaid Principal Balance	223
Associated Allowance	6
Average Recorded Investment	$ 613

Loans Receivable - Classes of L

Loans Receivable - Classes of Loan Portfolio, Internal Risk Rating System (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	$ 1,328,653	$ 1,305,071
Commercial And Municipal Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	608,034	539,414
Commercial And Municipal Portfolio Segment | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	480,647	416,573
Commercial And Municipal Portfolio Segment | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	55,559	49,479
Commercial And Municipal Portfolio Segment | Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	71,828	73,362
Commercial And Municipal Portfolio Segment | Pass [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	586,015	514,414
Commercial And Municipal Portfolio Segment | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	461,701	392,915
Commercial And Municipal Portfolio Segment | Pass [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	52,486	48,137
Commercial And Municipal Portfolio Segment | Pass [Member] | Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	71,828	73,362
Commercial And Municipal Portfolio Segment | Special Mention [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	7,492	8,968
Commercial And Municipal Portfolio Segment | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	7,492	8,960
Commercial And Municipal Portfolio Segment | Special Mention [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total		8
Commercial And Municipal Portfolio Segment | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	14,527	16,032
Commercial And Municipal Portfolio Segment | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	11,454	14,698
Commercial And Municipal Portfolio Segment | Substandard [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan, total	$ 3,073	$ 1,334

Loans Receivable - Schedule o_3

Loans Receivable - Schedule of Performing or Nonperforming Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Recorded Investment [Line Items]
Total	$ 1,328,653	$ 1,305,071
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	733,249	777,345
Home Equity Loans and Lines of Credit [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	45,156	43,962
Auto Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	81,983	146,220
Other [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,924	2,682
Residential [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	597,514	580,561
Construction [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	5,672	3,920
Performing [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	727,313	771,207
Performing [Member] | Home Equity Loans and Lines of Credit [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	44,534	43,746
Performing [Member] | Auto Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	81,317	145,633
Performing [Member] | Other [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,883	2,664
Performing [Member] | Residential [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	592,907	575,244
Performing [Member] | Construction [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	5,672	3,920
Nonperforming [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	5,936	6,138
Nonperforming [Member] | Home Equity Loans and Lines of Credit [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	622	216
Nonperforming [Member] | Auto Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	666	587
Nonperforming [Member] | Other [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	41	18
Nonperforming [Member] | Residential [Member] | Real Estate Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	$ 4,607	$ 5,317

Loans Receivable - Classes of_2

Loans Receivable - Classes of Loan Portfolio Summarized by Aging Categories (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 1,326,792	$ 1,301,224
31-60 Days Past Due	3,717	3,818
61-90 Days Past Due	468	951
Non-accrual	9,007	8,964
Total Past Due	13,192	13,733
Purchased Credit Impaired, Accruing	243	255
Purchased Credit Impaired, Nonaccrual	1,056	1,547
Total Loans	1,341,283	1,316,759
Obligations of States and Political Subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	71,828	73,362
Total Loans	71,828	73,362
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	44,319	43,716
31-60 Days Past Due	47	30
61-90 Days Past Due	168
Non-accrual	622	216
Total Past Due	837	246
Total Loans	45,156	43,962
Auto Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	80,090	144,140
31-60 Days Past Due	1,227	1,473
61-90 Days Past Due		20
Non-accrual	666	587
Total Past Due	1,893	2,080
Total Loans	81,983	146,220
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,883	2,647
31-60 Days Past Due		17
Non-accrual	41	18
Total Past Due	41	35
Total Loans	2,924	2,682
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	590,457	572,236
31-60 Days Past Due	2,187	2,088
61-90 Days Past Due	263	920
Non-accrual	4,607	5,317
Total Past Due	7,057	8,325
Total Loans	597,514	580,561
Construction [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	5,672	3,920
Total Loans	5,672	3,920
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	476,644	412,636
31-60 Days Past Due	236	185
Non-accrual	2,468	1,951
Total Past Due	2,704	2,136
Purchased Credit Impaired, Accruing	243	255
Purchased Credit Impaired, Nonaccrual	1,056	1,546
Total Loans	480,647	416,573
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	54,899	48,567
31-60 Days Past Due	20	25
61-90 Days Past Due	37	11
Non-accrual	603	875
Total Past Due	660	911
Purchased Credit Impaired, Nonaccrual		1
Total Loans	$ 55,559	$ 49,479

Loans Receivable - Summary of P

Loans Receivable - Summary of Primary Segments of ALL (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				$ 11,688				$ 9,365	$ 11,688	$ 9,365
Charge-offs									(1,851)	(2,462)
Recoveries									717	785
Provision	$ 200	$ 400	$ 600	876	$ 925	$ 975	$ 1,100	1,000	2,076	4,000
Balance, End of period	12,630				11,688				12,630	11,688
Individually evaluated for impairment	248				313				248	313
Collectively evaluated for impairment	12,382				11,375				12,382	11,375
Obligations of States and Political Subdivisions [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				323				248	323	248
Provision									20	75
Balance, End of period	343				323				343	323
Collectively evaluated for impairment	343				323				343	323
Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				296				470	296	470
Charge-offs									(62)	(68)
Recoveries									7	54
Provision									88	(160)
Balance, End of period	329				296				329	296
Collectively evaluated for impairment	329				296				329	296
Auto Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				1,859				1,836	1,859	1,836
Charge-offs									(1,233)	(1,833)
Recoveries									518	655
Provision									240	1,201
Balance, End of period	1,384				1,859				1,384	1,859
Individually evaluated for impairment	144				164				144	164
Collectively evaluated for impairment	1,240				1,695				1,240	1,695
Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				23				21	23	21
Charge-offs									(13)	(21)
Recoveries									16	5
Provision									2	18
Balance, End of period	28				23				28	23
Individually evaluated for impairment	6								6
Collectively evaluated for impairment	22				23				22	23
Residential [Member] | Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				3,605				3,878	3,605	3,878
Charge-offs									(330)	(335)
Recoveries									113	12
Provision									855	50
Balance, End of period	4,243				3,605				4,243	3,605
Individually evaluated for impairment	36				149				36	149
Collectively evaluated for impairment	4,207				3,456				4,207	3,456
Construction [Member] | Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				35				23	35	23
Provision									18	12
Balance, End of period	53				35				53	35
Collectively evaluated for impairment	53				35				53	35
Commercial [Member] | Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				3,458				1,758	3,458	1,758
Charge-offs									(185)	(54)
Recoveries									60	49
Provision									473	1,705
Balance, End of period	3,806				3,458				3,806	3,458
Individually evaluated for impairment	56								56
Collectively evaluated for impairment	3,750				3,458				3,750	3,458
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				1,462				987	1,462	987
Charge-offs									(28)	(151)
Recoveries									3	10
Provision									433	616
Balance, End of period	1,870				1,462				1,870	1,462
Individually evaluated for impairment	6								6
Collectively evaluated for impairment	1,864				1,462				1,864	1,462
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Beginning of period				$ 627				$ 144	627	144
Provision									(53)	483
Balance, End of period	574				627				574	627
Collectively evaluated for impairment	$ 574				$ 627				$ 574	$ 627

Loans Receivable - Summary of T

Loans Receivable - Summary of Troubled Debt Restructurings Granted (Detail) $ in Thousands	12 Months Ended
	Sep. 30, 2019USD ($)Contract	Sep. 30, 2018USD ($)Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	7	9
Real Estate Loans [Member] | Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	3	3
Pre-Modification Outstanding Recorded Investment	$ 259	$ 446
Post-Modification Outstanding Recorded Investment	$ 264	$ 446
Real Estate Loans [Member] | Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	2	2
Pre-Modification Outstanding Recorded Investment	$ 159	$ 123
Post-Modification Outstanding Recorded Investment	$ 159	$ 123
Auto Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	2	4
Pre-Modification Outstanding Recorded Investment	$ 36	$ 35
Post-Modification Outstanding Recorded Investment	$ 36	$ 35
Troubled Debt Restructurings [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	7	9
Pre-Modification Outstanding Recorded Investment	$ 454	$ 604
Post-Modification Outstanding Recorded Investment	$ 459	$ 604

Premises and Equipment - Compos

Premises and Equipment - Composition of Premises and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Property Plant And Equipment Useful Life And Values [Abstract]
Land and land improvements	$ 6,075	$ 6,044
Buildings and leasehold improvements	16,381	16,207
Furniture, fixtures, and equipment	12,098	11,687
Construction in process	18
Premises and equipment Gross	34,572	33,938
Less accumulated depreciation	(20,237)	(19,337)
Total	$ 14,335	$ 14,601

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Detail) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Property Plant And Equipment Useful Life And Values [Abstract]
Depreciation Expense	$ 897,000	$ 694,000

Deposits - Schedule of Deposits

Deposits - Schedule of Deposits and Respective Weighted-Average Interest Rates by Major Classifications (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Deposits [Line Items]
Weighted Average Interest Rate, Noninterest-bearing demand accounts	0.00%	0.00%
Weighted Average Interest Rate, Interest bearing demand accounts	0.38%	0.39%
Weighted Average Interest Rate, Money market accounts	1.28%	0.89%
Weighted Average Interest Rate, Savings and club accounts	0.05%	0.05%
Weighted Average Interest Rate, Certificates of deposit	1.90%	1.76%
Weighted Average Interest Rate, Total	1.04%	0.96%
Noninterest-bearing demand accounts	$ 175,932	$ 158,340
Interest bearing demand accounts	224,673	221,327
Money market accounts	364,635	296,078
Savings and club accounts	135,012	135,862
Certificates of deposit	442,578	525,248
Total	$ 1,342,830	$ 1,336,855
0.00 - 2.00% [Member]
Deposits [Line Items]
Weighted Average Interest Rate, Certificates of deposit	1.64%	1.59%
Certificates of deposit	$ 283,988	$ 395,583
2.01 - 4.00% [Member]
Deposits [Line Items]
Weighted Average Interest Rate, Certificates of deposit	2.37%	2.29%
Certificates of deposit	$ 158,590	$ 129,665

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities of Certificates of Deposit (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Banking And Thrift [Abstract]
2020	$ 362,762
2021	33,758
2022	29,286
2023	7,895
2024	8,877
Total	$ 442,578	$ 525,248

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Banking And Thrift [Abstract]
Brokered deposits Total	$ 158,550,000	$ 168,694,000
Aggregate amount of time certificates of deposit	38,629,000	$ 66,279,000
Aggregate amount of time certificates of deposit with a minimum denomination	$ 250,000

Deposits - Scheduled Maturiti_2

Deposits - Scheduled Maturities of Certificates of Deposit in Denominations (Detail) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Banking And Thrift [Abstract]
Within three months	$ 4,742,000
Three through six months	10,692,000
Six through twelve months	14,075,000
Over twelve months	9,120,000
Total	$ 38,629,000	$ 66,279,000

Short-Term Borrowings - Additio

Short-Term Borrowings - Additional Information (Detail) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Debt Disclosure [Abstract]
Short-term borrowings	$ 107,701,000	$ 179,773,000
Advances on line of credit with the FHLB	17,700,000	$ 64,800,000
Line of credit with the FHLB	150,000,000
Borrowing limit	$ 659,700,000

Short-Term Borrowings - Schedul

Short-Term Borrowings - Schedule of Short-Term Borrowings (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Debt Disclosure [Abstract]
Balance at year-end	$ 107,701	$ 179,773
Maximum amount outstanding at any month-end	239,824	260,797
Average balance outstanding during the year	$ 165,730	$ 210,050
Weighted-average interest rate:
As of year-end	2.35%	2.31%
Paid during the year	2.10%	1.86%

Other Borrowings - Contractual

Other Borrowings - Contractual Maturities of FHLB Long-term Advances (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Federal Home Loan Bank Advances [Line Items]
Advances From Federal Home Loan Banks	$ 140,581	$ 118,723
Fixed Rate [Member]
Federal Home Loan Bank Advances [Line Items]
Maturity Range From	2019
Maturity Range To	2024
Advances From Federal Home Loan Banks	$ 24,956	74,827
Fixed Rate [Member] | Weighted-Average [Member]
Federal Home Loan Bank Advances [Line Items]
Interest Rate	1.79%
Fixed Rate [Member] | Minimum [Member]
Federal Home Loan Bank Advances [Line Items]
Interest Rate	1.33%
Fixed Rate [Member] | Maximum [Member]
Federal Home Loan Bank Advances [Line Items]
Interest Rate	2.85%
Mid-Term [Member]
Federal Home Loan Bank Advances [Line Items]
Maturity Range From	2019
Maturity Range To	2022
Advances From Federal Home Loan Banks	$ 115,625	$ 43,896
Mid-Term [Member] | Weighted-Average [Member]
Federal Home Loan Bank Advances [Line Items]
Interest Rate	2.48%
Mid-Term [Member] | Minimum [Member]
Federal Home Loan Bank Advances [Line Items]
Interest Rate	1.66%
Mid-Term [Member] | Maximum [Member]
Federal Home Loan Bank Advances [Line Items]
Interest Rate	2.87%

Other Borrowings - Maturities o

Other Borrowings - Maturities of FHLB Long-term Advances (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
2020, Amount	$ 60,846
2021, Amount	63,125
2022, Amount	9,500
2023, Amount	2,500
2024, Amount	4,610
Total, Amount	$ 140,581	$ 118,723
2020, Weighted-Average Rate	2.38%
2021, Weighted-Average Rate	2.43%
2022, Weighted-Average Rate	2.20%
2023, Weighted-Average Rate	1.71%
2024, Weighted-Average Rate	1.77%
Weighted-Average [Member]
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
Total, Weighted-Average Rate	1.63%

Income Taxes - Schedule of Prov

Income Taxes - Schedule of Provision for Income Taxes (Detail) - USD ($)	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Federal									$ 1,386,000	$ 1,086,000
State									3,000	6,000
Total current taxes									1,389,000	1,092,000
Deferred income tax benefit									1,026,000	890,000
Change in corporate tax rate										3,682,000
Actual tax expense and effective rate, Amount	$ 699,000	$ 612,000	$ 630,000	$ 474,000	$ 542,000	$ 500,000	$ 529,000	$ 4,093,000	$ 2,415,000	$ 5,664,000

Income Taxes - Schedule of Chan

Income Taxes - Schedule of Changes in Significant Portions of the Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Deferred tax assets:
Allowance for loan losses	$ 2,652	$ 2,455
Adjustment to record funded status of pension plan	406	127
Investment losses subject to Section 382 limitation	2,203	2,510
Net unrealized loss on securities		3,022
Net unrealized loss on derivatives	149
Deferred compensation	274	290
Other real estate owned	148	152
Nonaccrual interest	110	163
Employee stock ownership plan	526	491
Alternative minimum tax		604
Other	1,063	1,308
Total gross deferred tax assets	7,531	11,122
Deferred tax liabilities:
Pension plan	775	675
Mortgage servicing rights	38	44
Premises and equipment	97	45
Net unrealized gain on securities	214
Net unrealized gain on derivatives		515
Low income housing tax credits	837	684
Other	448	718
Total gross deferred tax liabilities	2,409	2,681
Net deferred tax assets	$ 5,122	$ 8,441

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits		$ 0
Uncertain tax position		$ 0
Income tax expense increased due to Tax Act			$ 3,682,000
Effective income tax rate		11.50%
US corporate federal tax rate	35.00%	21.00%	24.30%

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of the Federal Statutory Rate and the Effective Income Tax Rate (Detail) - USD ($)	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Provision at statutory rate, Amount									$ 3,158,000	$ 2,961,000
Income from bank-owned life insurance, Amount									(204,000)	(243,000)
Tax-exempt income, Amount									(406,000)	(421,000)
Low-income housing credits, Amount									(196,000)	(167,000)
Tax rate change, Amount										3,682,000
Other, net, Amount									63,000	(148,000)
Actual tax expense and effective rate, Amount	$ 699,000	$ 612,000	$ 630,000	$ 474,000	$ 542,000	$ 500,000	$ 529,000	$ 4,093,000	$ 2,415,000	$ 5,664,000
Provision at statutory rate, Percentage of pretax income								35.00%	21.00%	24.30%
Income from bank-owned life insurance, Percentage of pretax income									(1.40%)	(2.00%)
Tax-exempt income, Percentage of pretax income									(2.70%)	(3.50%)
Low-income housing credits, Percentage of pretax income									(1.30%)	(1.40%)
Tax rate change, Percentage of pretax income										30.20%
Other, net, Percentage of pretax income									0.50%	(1.20%)
Actual tax expense and effective rate, Percentage of pretax income									16.10%	46.40%

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Components of Off Balance Sheet Commitments (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off balance sheet commitments	$ 10,703	$ 5,329
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off balance sheet commitments	80,476	112,037
Unfunded Lines of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off balance sheet commitments	$ 106,704	$ 96,618

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Additional Information (Detail) $ in Millions	Dec. 08, 2016Plaintiff	Sep. 30, 2019USD ($)
Commitments And Contingencies Disclosure [Abstract]
Contract Maturity Period		Less than one year
Coverage Period for Instrument		1 year
Reserve balance | $		$ 1.2
Number of plaintiffs | Plaintiff	1

Lease Commitments and Total R_3

Lease Commitments and Total Rental Expense - Future Minimum Lease Payments By Year and in the Aggregate (Detail) $ in Thousands	Sep. 30, 2019USD ($)
Commitments And Contingencies Disclosure [Abstract]
2020	$ 852
2021	757
2022	674
2023	594
2024	460
2025 and beyond	935
Total	$ 4,272

Lease Commitments and Total R_4

Lease Commitments and Total Rental Expense - Additional Information (Detail) $ in Millions	12 Months Ended
	Sep. 30, 2019USD ($)Office	Sep. 30, 2018USD ($)
Commitments And Contingencies Disclosure [Abstract]
Total rental expenses | $	$ 1.3	$ 1.3
Number of offices | Office	4

Employee Benefits - Additional

Employee Benefits - Additional Information (Detail) - USD ($)	Mar. 02, 2016	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs Disclosure [Line Items]
Service Period		1 year
Age of Employee		21 years
Acquired Shares of the Company's Stock		1,358,472
Outstanding loan interest		5.50%
Recognized ESOP expense		$ 700,000	$ 725,000
Share-based compensation expense		544,000	350,000
Accumulated benefit obligation		17,637,000	17,111,000
Estimated net loss		0
Expected contribution of bank		0
Estimated present value of benefits under plan		$ 2,200,000	2,100,000
Supplemental executive retirement plan discounting rate for present value calculation		6.00%
Expense related to supplemental executive retirement plan		$ 114,000	477,000
Qualified Plan [Member]
Compensation Related Costs Disclosure [Line Items]
Allocated share based compensation expense		$ 449,000	464,000
Equity [Member]
Compensation Related Costs Disclosure [Line Items]
Target allocation of cash and fixed income		65.00%
Cash and Fixed Income [Member]
Compensation Related Costs Disclosure [Line Items]
Target allocation of cash and fixed income		35.00%
Minimum [Member]
Compensation Related Costs Disclosure [Line Items]
Supplemental executive retirement plan minimum period		192 months
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
Stock Option [Member]
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		$ 350,000	$ 336,000
Expected future expense		$ 561,000
Remaining vesting periods		3 years 29 days
Restricted Stock [Member] | Minimum [Member]
Compensation Related Costs Disclosure [Line Items]
Restricted shares vesting period		1 year
Restricted Stock [Member] | Maximum [Member]
Compensation Related Costs Disclosure [Line Items]
Restricted shares vesting period		3 years

Employee Benefits - Components

Employee Benefits - Components of the ESOP Shares (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs [Abstract]
Allocated shares	348,523	345,455
Shares committed to be released	33,962	33,962
Unreleased shares	781,120	826,403
Total ESOP shares	1,163,605	1,205,820
Fair value of unreleased shares	$ 12,826	$ 13,437

Employee Benefits - Schedule of

Employee Benefits - Schedule of Nonvested Restricted Stock Option Activity (Detail) - Restricted Stock [Member]	12 Months Ended
	Sep. 30, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Restricted Stock, Nonvested at September 30, 2018 | shares	35,072
Number of Restricted Stock, Granted | shares	37,236
Number of Restricted Stock, Vested | shares	(32,225)
Number of Restricted Stock, Forfeited | shares	(5,120)
Number of Restricted Stock, Nonvested at September 30, 2019 | shares	34,963
Weighted-average Grant Date Fair Value, Nonvested at September 30, 2018 | $ / shares	$ 15.37
Weighted-average Grant Date Fair Value, Granted | $ / shares	16.23
Weighted-average Grant Date Fair Value, Vested | $ / shares	16.18
Weighted-average Grant Date Fair Value, Forfeited | $ / shares	15.87
Weighted-average Grant Date Fair Value, Nonvested at September 30, 2019 | $ / shares	$ 16.13

Employee Benefits - Summary of

Employee Benefits - Summary of Change in Plan Assets and Benefit Obligation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs [Abstract]
Projected benefit obligation at beginning of year	$ 17,111	$ 18,598
Interest cost	693	698
Actuarial (gains) losses	807	(204)
Benefits paid	(974)	(1,981)
Projected benefit obligation at end of year	17,637	17,111
Fair value of plan assets at beginning of year	19,720	20,363
Actual return on plan assets	649	1,338
Benefits paid	(974)	(1,981)
Fair value of plan assets at end of year	19,395	19,720
Funded status	$ 1,758	$ 2,609

Employee Benefits - Summary o_2

Employee Benefits - Summary of the Components of Net Periodic Pension Cost (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs [Abstract]
Net loss	$ 1,933	$ 604

Employee Benefits - Summary o_3

Employee Benefits - Summary of the Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs [Abstract]
Interest cost	$ 693	$ 698
Expected return on plan assets	(1,171)	(1,193)
Net periodic (benefit) cost	$ (478)	$ (495)

Employee Benefits - Schedule _2

Employee Benefits - Schedule of Weighted-Average Assumptions (Detail)	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs [Abstract]
Discount rate	3.00%	4.10%

Employee Benefits - Schedule _3

Employee Benefits - Schedule of Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Compensation Related Costs [Abstract]
Discount rate	4.10%	3.85%
Expected long-term return on plan assets	6.00%	6.00%

Employee Benefits - Summary o_4

Employee Benefits - Summary of the Plan's Financial Assets at Fair Value, Within the Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	$ 19,395	$ 19,720	$ 20,363
Level II [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	19,395	19,720
Investment in Collective Trusts Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	7,736	7,916
Investment in Collective Trusts Fixed Income [Member] | Level II [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	7,736	7,916
Investment in Collective Trusts Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	11,620	11,789
Investment in Collective Trusts Equity [Member] | Level II [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	11,620	11,789
Investment in Short-Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	39	15
Investment in Short-Term Investments [Member] | Level II [Member]
Defined Benefit Plan Disclosure [Line Items]
Total assets at fair value	$ 39	$ 15

Employee Benefits - The Bank's

Employee Benefits - The Bank's Defined Benefit Pension Plan Weighted-Average Asset Allocations (Detail)	Sep. 30, 2019	Sep. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Total Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Defined Benefit Plan, Actual Plan Asset Allocations	39.90%	40.10%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Defined Benefit Plan, Actual Plan Asset Allocations	59.90%	59.80%
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Defined Benefit Plan, Actual Plan Asset Allocations	0.20%	0.10%

Employee Benefits - Summary o_5

Employee Benefits - Summary of Estimated Future Benefit Payments (Detail) $ in Thousands	Sep. 30, 2019USD ($)
Compensation Related Costs [Abstract]
2020	$ 2,707
2021	2,162
2022	571
2023	742
2024	633
2025-2029	$ 5,370

Regulatory Restrictions - Addit

Regulatory Restrictions - Additional Information (Detail) - USD ($)	Sep. 30, 2019	Sep. 30, 2018
Regulatory Capital Requirements [Abstract]
Reserve funds deposit	$ 21,390,000	$ 17,348,000

Regulatory Capital Requiremen_3

Regulatory Capital Requirements - Additional Information (Detail)	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2014
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity Tier 1 capital ratio	4.50%	4.50%
Tier 1 risk-based ratio	6.00%	6.00%	4.00%
Capital conservation buffer percentage	2.50%
Risk weight percentage	150.00%		100.00%
Total risk-based ratio	10.00%	10.00%
Common equity Tier 1 capital ratio	6.50%	6.50%
Minimum [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 risk-based ratio	8.00%	8.00%
Total risk-based ratio	10.00%	10.00%
Common equity Tier 1 capital ratio	6.50%	6.50%
Tier 1 leverage capital ratio	5.00%	5.00%

Regulatory Capital Requiremen_4

Regulatory Capital Requirements - Bank's Actual Capital Ratios (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2014
Banking And Thrift [Abstract]
Actual, Amount	$ 184,214	$ 180,203
For capital adequacy purposes, Amount	105,281	105,926
To be well capitalized, Amount	131,602	132,407
Actual, Amount	171,532	168,161
For capital adequacy purposes, Amount	78,961	79,444
To be well capitalized, Amount	105,281	105,926
Actual, Amount	171,532	168,161
For capital adequacy purposes, Amount	59,221	59,583
To be well capitalized, Amount	85,541	86,065
Actual, Amount	171,532	168,161
For capital adequacy purposes, Amount	70,979	72,456
To be well capitalized, Amount	$ 88,724	$ 90,570
Actual, Ratio	14.00%	13.60%
For capital adequacy purposes, Ratio	8.00%	8.00%
To be well capitalized, Ratio	10.00%	10.00%
Actual, Ratio	13.00%	12.70%
For capital adequacy purposes, Ratio	6.00%	6.00%	4.00%
To be well capitalized, Ratio	8.00%	8.00%
Actual, Ratio	13.00%	12.70%
For capital adequacy purposes, Ratio	4.50%	4.50%
To be well capitalized, Ratio	6.50%	6.50%
Actual, Ratio	9.70%	9.20%
For capital adequacy purposes, Ratio	4.00%	4.00%
To be well capitalized, Ratio	5.00%	5.00%

Fair Value - Schedule of Fair V

Fair Value - Schedule of Fair Value For Assets Required to be Measured and Reported at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Assets:
Total debt securities	$ 313,393	$ 371,438
Equity securities - financial services	25	20
Fair Value, Measurements, Recurring [Member]
Assets:
Total debt securities	313,393	371,438
Equity securities - financial services	25	20
Derivatives and hedging activities	303	2,452
Liabilities:
Derivatives and hedging activities	1,011
Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member]
Assets:
Total debt securities	226,440	258,123
Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Assets:
Total debt securities	20,212	40,949
Fair Value, Measurements, Recurring [Member] | U.S. Government Agency Securities [Member]
Assets:
Total debt securities	6,688	5,558
Fair Value, Measurements, Recurring [Member] | Corporate Obligations [Member]
Assets:
Total debt securities	43,134	47,415
Fair Value, Measurements, Recurring [Member] | Other Debt Securities [Member]
Assets:
Total debt securities	16,919	19,373
Fair Value, Measurements, Recurring [Member] | Level I [Member]
Assets:
Total debt securities		20
Equity securities - financial services	25	20
Fair Value, Measurements, Recurring [Member] | Level II [Member]
Assets:
Total debt securities	305,601	363,680
Derivatives and hedging activities	303	2,452
Liabilities:
Derivatives and hedging activities	1,011
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Mortgage-Backed Securities [Member]
Assets:
Total debt securities	226,440	258,123
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Obligations of States and Political Subdivisions [Member]
Assets:
Total debt securities	20,212	40,949
Fair Value, Measurements, Recurring [Member] | Level II [Member] | U.S. Government Agency Securities [Member]
Assets:
Total debt securities	6,688	5,558
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Corporate Obligations [Member]
Assets:
Total debt securities	35,342	39,677
Fair Value, Measurements, Recurring [Member] | Level II [Member] | Other Debt Securities [Member]
Assets:
Total debt securities	16,919	19,373
Fair Value, Measurements, Recurring [Member] | Level III [Member]
Assets:
Total debt securities	7,792	7,738
Fair Value, Measurements, Recurring [Member] | Level III [Member] | Corporate Obligations [Member]
Assets:
Total debt securities	$ 7,792	$ 7,738

Fair Value - Schedule of Change

Fair Value - Schedule of Changes in Fair Value of Level III Investments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Beginning balance	$ 7,738	$ 7,224
Purchases, sales, issuances, settlements, net		500
Total unrealized gain:
Included in other comprehensive income	54	14
Ending balance	$ 7,792	$ 7,738

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	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate	$ 8,128	$ 11,557
Servicing Asset Valuation Technique Extensible List	essa:AppraisalOfCollateralMember	essa:AppraisalOfCollateralMember
Servicing Asset, Measurement Input [Extensible List]	essa:AppraisalAdjustmentsMember	essa:AppraisalAdjustmentsMember
Fair value input appraisal adjustments	0.203	0.253
Foreclosed Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate	$ 240	$ 1,141
Servicing Asset Valuation Technique Extensible List	essa:AppraisalOfCollateralMember	essa:AppraisalOfCollateralMember
Servicing Asset, Measurement Input [Extensible List]	essa:AppraisalAdjustmentsMember	essa:AppraisalAdjustmentsMember
Fair value input appraisal adjustments	0.266	0.237
Minimum [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments	0	0
Minimum [Member] | Foreclosed Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments	0.20	0.20
Maximum [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments	0.35	0.35
Maximum [Member] | Foreclosed Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input appraisal adjustments	0.35	0.46

Fair Value - Additional Informa

Fair Value - Additional Information (Detail) $ in Thousands	Sep. 30, 2019USD ($)Loan	Sep. 30, 2018USD ($)Loan
Fair Value Disclosures [Abstract]
Number of impaired loans | Loan	138	133
Impaired loans, carrying value	$ 8,400	$ 11,900
Impaired loans, valuation allowance	248	313
Impaired loans, net fair value	8,100	11,600
Impaired loans, fair value	$ 8,400	$ 11,900

Fair Value - Schedule of Assets

Fair Value - Schedule of Assets and Liabilities not Required to be Measured and Reported at Fair Value (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Financial assets:
Loans receivable, net	$ 8,100	$ 11,600
Bank-owned life insurance	39,601	38,630
Financial liabilities:
Other borrowings	140,581	118,723
Advances by borrowers for taxes and insurance	6,700	6,826
Carrying Value [Member]
Financial assets:
Cash and cash equivalents	52,242	43,539
Certificates of deposit		500
Loans receivable, net	1,328,653	1,305,071
Accrued interest receivable	6,225	6,640
Regulatory stock	11,579	12,973
Mortgage servicing rights	177	206
Bank-owned life insurance	39,601	38,630
Financial liabilities:
Deposits	1,342,830	1,336,855
Short-term borrowings	107,701	179,773
Other borrowings	140,581	118,723
Advances by borrowers for taxes and insurance	6,700	6,826
Accrued interest payable	1,384	1,369
Estimated Fair Value [Member]
Financial assets:
Cash and cash equivalents	52,242	43,539
Certificates of deposit		505
Loans receivable, net	1,313,231	1,269,127
Accrued interest receivable	6,225	6,640
Regulatory stock	11,579	12,973
Mortgage servicing rights	241	340
Bank-owned life insurance	39,601	38,630
Financial liabilities:
Deposits	1,343,315	1,332,468
Short-term borrowings	107,701	179,773
Other borrowings	141,427	117,920
Advances by borrowers for taxes and insurance	6,700	6,826
Accrued interest payable	1,384	1,369
Estimated Fair Value [Member] | Level 1 [Member]
Financial assets:
Cash and cash equivalents	52,242	43,539
Accrued interest receivable	6,225	6,640
Regulatory stock	11,579	12,973
Bank-owned life insurance	39,601	38,630
Financial liabilities:
Deposits	900,252	811,607
Short-term borrowings	107,701	179,773
Advances by borrowers for taxes and insurance	6,700	6,826
Accrued interest payable	1,384	1,369
Estimated Fair Value [Member] | Level 3 [Member]
Financial assets:
Certificates of deposit		505
Loans receivable, net	1,313,231	1,269,127
Mortgage servicing rights	241	340
Financial liabilities:
Deposits	443,063	520,861
Other borrowings	$ 141,427	$ 117,920

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Summary of Activity in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 179,186	$ 182,727
Ending Balance	189,508	179,186
Defined Benefit Pension Plan [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(477)	(628)
Other comprehensive income (loss) before reclassifications	(1,050)	275
Reclassification of certain income tax effects from accumulated other comprehensive income		(124)
Total other comprehensive (loss) income	(1,050)	151
Ending Balance	(1,527)	(477)
Unrealized Gains (Losses) on Securities Available for Sale [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(11,369)	(927)
Other comprehensive income (loss) before reclassifications	12,207	(9,883)
Pension plan curtailment		(123)
Amounts reclassified from accumulated other comprehensive income (loss)	(35)
Reclassification of certain income tax effects from accumulated other comprehensive income	4	(436)
Total other comprehensive (loss) income	12,176	(10,442)
Ending Balance	807	(11,369)
Derivatives [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	1,936	801
Other comprehensive income (loss) before reclassifications	(1,758)	1,269
Pension plan curtailment		(348)
Amounts reclassified from accumulated other comprehensive income (loss)	(738)
Reclassification of certain income tax effects from accumulated other comprehensive income		214
Total other comprehensive (loss) income	(2,496)	1,135
Ending Balance	(560)	1,936
Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(9,910)	(754)
Other comprehensive income (loss) before reclassifications	9,399	(8,339)
Pension plan curtailment		(471)
Amounts reclassified from accumulated other comprehensive income (loss)	(773)
Reclassification of certain income tax effects from accumulated other comprehensive income	4	(346)
Total other comprehensive (loss) income	8,630	(9,156)
Ending Balance	$ (1,280)	$ (9,910)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Summary of Activity in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Equity [Abstract]
Related income tax expense or benefit	35.00%	21.00%	24.30%

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Income (Loss) - Summary of Reclassification Out of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Schedule of Available-for-sale Securities [Line Items]
Gain on sale of investment securities, net									$ 44	$ 162
Interest expense	$ (5,084)	$ (5,285)	$ (5,396)	$ (4,984)	$ (4,592)	$ (4,156)	$ (3,912)	$ (3,608)	(20,749)	(16,268)
Income taxes	$ (699)	$ (612)	$ (630)	$ (474)	$ (542)	$ (500)	$ (529)	$ (4,093)	(2,415)	(5,664)
Unrealized Gains (Losses) on Securities Available for Sale [Member]
Schedule of Available-for-sale Securities [Line Items]
Net of tax									35
Derivatives [Member]
Schedule of Available-for-sale Securities [Line Items]
Net of tax									738
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Schedule of Available-for-sale Securities [Line Items]
Net of tax									773	471
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized Gains (Losses) on Securities Available for Sale [Member]
Schedule of Available-for-sale Securities [Line Items]
Gain on sale of investment securities, net									44	162
Income taxes									(9)	(39)
Net of tax									35	123
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member] | Derivatives [Member]
Schedule of Available-for-sale Securities [Line Items]
Interest expense									934	459
Income taxes									(196)	(111)
Net of tax									$ 738	$ 348

Derivatives and Hedging Activ_2

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 ($)	Sep. 30, 2019	Sep. 30, 2018
Other Assets [Member]
Derivatives Fair Value [Line Items]
Fair Values of Derivative Instruments, Asset	$ 303,000	$ 2,452,000
Other Liabilities [Member]
Derivatives Fair Value [Line Items]
Derivatives and hedging activities	1,011,000
Interest Rate Products [Member] | Other Assets [Member]
Derivatives Fair Value [Line Items]
Derivatives, Notional Amount	50,000,000	100,000,000
Fair Values of Derivative Instruments, Asset	303,000	$ 2,452,000
Interest Rate Products [Member] | Other Liabilities [Member]
Derivatives Fair Value [Line Items]
Derivatives, Notional Amount	85,000,000
Derivatives and hedging activities	$ 1,011,000

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended								12 Months Ended
	Sep. 30, 2019USD ($)Contract	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)ContractDerivative	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)Contract	Sep. 30, 2018USD ($)ContractDerivative
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Interest income	$ 16,762,000	$ 17,000,000	$ 17,128,000	$ 16,869,000	$ 16,562,000	$ 16,718,000	$ 15,847,000	$ 15,376,000		$ 67,759,000	$ 64,503,000
Increase (decrease) in accrued interest payable										15,000	$ 326,000
Derivative liability, collateral against obligations	$ 710,000									710,000
Number of derivatives in a net liability position | Derivative					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										$ 934,000	$ 459,000
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member] | Scenario, Forecast [Member] | Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Increase (decrease) in accrued interest payable									$ (111,000,000)
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member] | Interest Rate Swaps [Member] | Variable Rate [Member] | FHLB Advances [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, number of instruments | Contract	7				6					7	6
Derivative, notional principal amount	$ 135,000,000				$ 100,000,000					$ 135,000,000	$ 100,000,000

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Schedule of Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments Gain Loss [Line Items]
Amount of Gain Recognized in OCI on Derivative	$ (2,226)	$ 1,696
Designated as Hedging Instrument [Member] | Cash Flow Hedges of Interest Rate Risk [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain Recognized in OCI on Derivative	3,160	1,237
Amount of Gain Reclassified from Accumulated OCI into Income	934	459
Designated as Hedging Instrument [Member] | Interest Rate Products [Member] | Cash Flow Hedges of Interest Rate Risk [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain Recognized in OCI on Derivative	3,160	1,237
Designated as Hedging Instrument [Member] | Interest Rate Products [Member] | Cash Flow Hedges of Interest Rate Risk [Member] | Interest Expense [Member]
Derivative Instruments Gain Loss [Line Items]
Amount of Gain Reclassified from Accumulated OCI into Income	$ 934	$ 459

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Detail)	Oct. 01, 2018
Revenue From Contract With Customer [Abstract]
Percentage of cumulative revenue out of scope to 2014-09	90.30%

Parent Company - Condensed Bala

Parent Company - Condensed Balance Sheet (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
ASSETS
Cash and due from banks	$ 48,426	$ 39,197
Equity securities	25	20
Premises and equipment, net	14,335	14,601
Other assets	19,395	22,280
TOTAL ASSETS	1,799,427	1,833,790
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other liabilities	12,107	12,427
Stockholders’ equity	189,508	179,186	$ 182,727
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	1,799,427	1,833,790
Parent Company [Member]
ASSETS
Cash and due from banks	2,354	3,713
Equity securities	25	20
Investment in subsidiary	185,119	173,431
Premises and equipment, net	421	431
Other assets	1,702	1,705
TOTAL ASSETS	189,621	179,300
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other liabilities	113	114
Stockholders’ equity	189,508	179,186
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 189,621	$ 179,300

Parent Company - Condensed Stat

Parent Company - Condensed Statement of Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
INCOME
Interest income	$ 11,678	$ 11,715	$ 11,732	$ 11,885	$ 11,970	$ 12,562	$ 11,935	$ 11,768	$ 47,010	$ 48,235
Unrealized gain on equity securities									5
EXPENSES
Professional fees									2,054	2,368
Other									2,789	3,937
Total noninterest expense	9,172	9,518	9,711	9,652	9,420	10,163	9,988	10,282	38,053	39,853
Income (loss) before income tax expense	4,407	3,659	3,489	3,483	3,627	3,321	2,792	2,455
Income tax expense benefit	699	612	630	474	542	500	529	4,093	2,415	5,664
NET INCOME	$ 3,708	$ 3,047	$ 2,859	$ 3,009	$ 3,085	$ 2,821	$ 2,263	$ (1,638)	12,623	6,531
COMPREHENSIVE INCOME(LOSS)									21,249	(2,279)
Parent Company [Member]
INCOME
Interest income									614	517
Unrealized gain on equity securities									5
Dividends									10,000
Total income									10,619	517
EXPENSES
Professional fees									427	431
Other									29	388
Total noninterest expense									456	819
Income (loss) before income tax expense									10,163	(302)
Income tax expense benefit									58	(73)
Income (loss) before equity in undistributed net earnings of subsidiary									10,105	(229)
Equity in undistributed net earnings of subsidiary									2,518	6,760
NET INCOME									12,623	6,531
COMPREHENSIVE INCOME(LOSS)									$ 21,249	$ (2,279)

Parent Company - Condensed St_2

Parent Company - Condensed Statement of Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
OPERATING ACTIVITIES
Net income	$ 12,623	$ 6,531
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for depreciation	1,084	1,177
Increase (decrease) in accrued interest receivable	415	(491)
Deferred federal income taxes	1,026	4,572
Loss on disposal of fixed assets		562
Other, net	(1,968)	2,592
Net cash provided by operating activities	18,190	23,386
INVESTING ACTIVITIES
Net cash provided by investing activities	46,941	(69,732)
FINANCING ACTIVITIES
Purchase of treasury stock shares	7,797
Dividends on common stock	(4,266)	(3,912)
Net cash provided by (used for) financing activities	(56,428)	48,202
Increase in cash and cash equivalents	8,703	1,856
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	43,539	41,683
CASH AND CASH EQUIVALENTS AT END OF YEAR	52,242	43,539
Parent Company [Member]
OPERATING ACTIVITIES
Net income	12,623	6,531
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net earnings of subsidiary	(2,518)	(6,760)
Provision for depreciation	10	23
(Increase) decrease in accrued income taxes	(58)	73
Increase (decrease) in accrued interest receivable	(61)	(56)
Deferred federal income taxes	1	2
Loss on disposal of fixed assets		340
Other, net	707	564
Net cash provided by operating activities	10,704	717
INVESTING ACTIVITIES
Sale of premises, equipment and software		299
Net cash provided by investing activities		299
FINANCING ACTIVITIES
Purchase of treasury stock shares	7,797	(1,575)
Dividends on common stock	(4,266)	(3,912)
Net cash provided by (used for) financing activities	(12,063)	(2,337)
Increase in cash and cash equivalents	(1,359)	(1,321)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	3,713	5,034
CASH AND CASH EQUIVALENTS AT END OF YEAR	$ 2,354	$ 3,713

Selected Quarterly Data (Unau_3

Selected Quarterly Data (Unaudited) - Summary of Selected Quarterly Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018
Quarterly Financial Information Disclosure [Abstract]
Total interest income	$ 16,762	$ 17,000	$ 17,128	$ 16,869	$ 16,562	$ 16,718	$ 15,847	$ 15,376	$ 67,759	$ 64,503
Total interest expense	5,084	5,285	5,396	4,984	4,592	4,156	3,912	3,608	20,749	16,268
NET INTEREST INCOME	11,678	11,715	11,732	11,885	11,970	12,562	11,935	11,768	47,010	48,235
Provision for loan losses	200	400	600	876	925	975	1,100	1,000	2,076	4,000
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	11,478	11,315	11,132	11,009	11,045	11,587	10,835	10,768	44,934	44,235
Total noninterest income	2,101	1,862	2,068	2,126	2,002	1,897	1,945	1,969	8,157	7,813
Total noninterest expense	9,172	9,518	9,711	9,652	9,420	10,163	9,988	10,282	38,053	39,853
Income (loss) before income tax expense	4,407	3,659	3,489	3,483	3,627	3,321	2,792	2,455
Income taxes (benefit) expense	699	612	630	474	542	500	529	4,093	2,415	5,664
NET INCOME	$ 3,708	$ 3,047	$ 2,859	$ 3,009	$ 3,085	$ 2,821	$ 2,263	$ (1,638)	$ 12,623	$ 6,531
Net income
Basic	$ 0.35	$ 0.29	$ 0.26	$ 0.27	$ 0.28	$ 0.26	$ 0.21	$ (0.15)	$ 1.18	$ 0.60
Diluted	$ 0.35	$ 0.29	$ 0.26	$ 0.27	$ 0.28	$ 0.26	$ 0.21	$ (0.15)	$ 1.18	$ 0.60
Average shares outstanding
Basic	10,562,770	10,574,407	10,825,626	10,951,356	10,970,947	10,911,469	10,796,353	10,717,138	10,733,166	10,833,844
Diluted	10,562,771	10,574,407	10,825,626	10,951,356	10,970,947	10,922,860	10,822,109	10,717,138	10,733,166	10,833,844