Prudential Bancorp (PBIP) 10-Q 14 Feb 22 2022 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Dec. 31, 2021	Jan. 31, 2022
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity Registrant Name	PRUDENTIAL BANCORP, INC.
Entity Central Index Key	0001578776
Entity File Number	000-55084
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	46-2935427
Entity Address, Address Line One	1834 West Oregon Avenue
Entity Address, City or Town	Philadelphia
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19145
City Area Code	215
Local Phone Number	755-1500
Title of 12(b) Security	Common Stock
Trading Symbol	PBIP
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock Shares Outstanding		7,769,387
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1

UNAUDITED CONSOLIDATED STATEMEN

UNAUDITED CONSOLIDATED STATEMENT OF FINANCIAL CONDITION - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
ASSETS
Cash and amounts due from depository institutions	$ 2,822	$ 2,233
Interest-bearing deposits	111,001	80,465
Total cash and cash equivalents	113,823	82,698
Certificates of deposit	1,106	1,106
Investment and mortgage-backed securities available for sale at fair value	297,524	305,947
Investment and mortgage-backed securities held to maturity (fair value-December 31, 2021, $18,777; September 30, 2021, $21,161)	17,834	20,074
Equity securities	22	22
Loans held for sale	406
Loans receivable-net of allowance for loan losses (December 31, 2021, $8,382; September 30, 2021, $8,517)	584,758	618,206
Accrued interest receivable	3,857	4,326
Real estate owned	4,109	4,109
Restricted bank stock-at cost	9,069	10,091
Office properties and equipment-net	6,807	6,850
Bank owned life insurance (BOLI)	33,260	33,116
Deferred income taxes, net	2,391	3,021
Goodwill	6,102	6,102
Core deposit intangible	224	246
Prepaid expenses and other assets	2,880	4,554
TOTAL ASSETS	1,084,172	1,100,468
Deposits:
Non-interest-bearing	35,594	37,409
Interest-bearing	685,090	674,106
Total deposits	720,684	711,515
Advances from Federal Home Loan Bank - Long Term	207,880	232,025
Accrued interest payable	1,398	2,558
Advances from borrowers for taxes and insurance	2,790	1,698
Interest rate swaps contracts	9,031	12,834
Accounts payable and accrued expenses	8,799	9,382
Total liabilities	950,582	970,012
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued
Common stock, $.01 par value, 40,000,000 shares authorized; 10,819,006 issued and 7,769,387 outstanding at December 31, 2021 and September 30, 2021	108	108
Additional paid-in capital	118,506	118,424
Treasury stock, at cost: 3,049,619 shares at December 31, 2021 and September 30, 2021	(44,351)	(44,351)
Retained earnings	59,744	58,450
Accumulated other comprehensive loss	(417)	(2,175)
Total stockholders' equity	133,590	130,456
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,084,172	$ 1,100,468

UNAUDITED CONSOLIDATED STATEM_2

UNAUDITED CONSOLIDATED STATEMENT OF FINANCIAL CONDITION (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
UNAUDITED CONSOLIDATED STATEMENT OF FINANCIAL CONDITION
Investment and mortgage-backed securities held to maturity, fair value (in dollars)	$ 18,777	$ 21,161
Allowance for loan losses on loans receivable (in dollars)	$ 8,382	$ 8,517
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	10,819,006	10,819,006
Common stock, shares outstanding	7,769,387	7,769,387
Number of treasury share purchased	3,049,619	3,049,619

UNAUDITED CONSOLIDATED STATEM_3

UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
INTEREST INCOME:
Interest and fees on loans	$ 6,287	$ 6,275
Interest on mortgage-backed securities	1,035	1,616
Interest and dividends on investments	1,763	1,714
Interest on interest-bearing deposits	154	84
Total interest income	9,239	9,689
INTEREST EXPENSE:
Interest on deposits	1,948	2,170
Interest on advances from FHLB - short term		25
Interest on advances from FHLB - long term	1,362	1,811
Total interest expense	3,310	4,006
NET INTEREST INCOME	5,929	5,683
PROVISION FOR LOAN LOSSES	0	0
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	5,929	5,683
NON-INTEREST INCOME:
Fees and other service charges	122	139
Gain on equity securities		11
Gain on sale of loans		40
Swap income	25	103
Earnings from BOLI	144	160
Other	79	84
Total non-interest income	370	537
NON-INTEREST EXPENSES:
Salaries and employee benefits	2,369	2,416
Data processing	226	195
Professional services	421	457
Office occupancy	228	229
Depreciation	109	111
Director compensation	58	53
Federal Deposit Insurance Corporation premiums	70	130
Advertising	23	32
Core deposit amortization	22	26
Other	681	448
Total non-interest expenses	4,207	4,097
INCOME BEFORE INCOME TAXES	2,092	2,123
INCOME TAXES:
Current	91	162
Deferred expense	163	124
Total	254	286
NET INCOME	$ 1,838	$ 1,837
BASIC EARNINGS PER SHARE	$ 0.24	$ 0.23
DILUTED EARNINGS PER SHARE	0.24	0.23
DIVIDENDS PER SHARE	$ 0.07	$ 0.07

UNAUDITED CONSOLIDATED STATEM_4

UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 1,838	$ 1,837
Unrealized holding gain (loss) on available-for-sale securities	(1,196)	2,082
Tax effect	251	(446)
Unrealized holding gain on interest rate swaps	3,421	1,395
Tax effect	(718)	(295)
Total other comprehensive income	1,758	2,736
Comprehensive income	$ 3,596	$ 4,573

UNAUDITED CONSOLIDATED STATEM_5

UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
BALANCE at Sep. 30, 2020	$ 108	$ 118,270	$ (39,207)	$ 52,889	$ (2,943)	$ 129,117
Increase (Decrease) in Stockholders' Equity
Net income				1,837		1,837
Other comprehensive income					2,736	2,736
Dividends paid				(571)		(571)
Purchase of treasury stock			(1,960)			(1,960)
Stock option expense		43				43
Restricted shares award expense		43				43
BALANCE at Dec. 31, 2020	108	118,356	(41,167)	54,155	(207)	131,245
BALANCE at Sep. 30, 2021	108	118,424	(44,351)	58,450	(2,175)	130,456
Increase (Decrease) in Stockholders' Equity
Net income				1,838		1,838
Other comprehensive income					1,758	1,758
Dividends paid				(544)		(544)
Stock option expense		41				41
Restricted shares award expense		41				41
BALANCE at Dec. 31, 2021	$ 108	$ 118,506	$ (44,351)	$ 59,744	$ (417)	$ 133,590

UNAUDITED CONSOLIDATED STATEM_6

UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parentheticals) - $ / shares	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
Dividends paid (in dollars per share)	$ 0.07	$ 0.07
Purchase of treasury stock		141,811

UNAUDITED CONSOLIDATED STATEM_7

UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES:
Net income	$ 1,838	$ 1,837
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	109	111
Net amortization of premiums and other amortization	(179)	(174)
Accretion of deferred loan fees and costs	(258)	(3)
Income from bank owned life insurance	(144)	(160)
Gain on sale of loans		(40)
Proceeds from the sale of loans held for sale	634	2,765
Originations of loans held for sale	(1,040)	(2,725)
Share-based compensation expense	82	86
Holding (gains) losses on equity securities	0	(11)
Deferred income tax expense	(162)	124
Changes in assets and liabilities which provided (used) cash:
Accrued interest receivable	469	324
Accrued interest payable	(1,160)	(1,814)
Other, net	1,415	(426)
Net cash provided by (used in) operating activities	1,604	(106)
INVESTING ACTIVITIES:
Purchase of investment and mortgage-backed securities available for sale	(11,887)	(14,196)
Loans originated or acquired	(49,051)	(73,715)
Principal collected on loans	82,847	56,310
Principal payments received on investment and mortgage-backed securities:
Held-to-maturity	2,194	247
Available-for-sale	18,887	35,502
Proceeds from redemption of FHLB stock	1,032	1,296
Purchase of FHLB stock	(10)	(960)
Purchases of equipment	(66)	(80)
Net cash provided by investing activities	43,946	4,404
FINANCING ACTIVITIES:
Net increase (decrease) in demand deposits, NOW accounts, and savings accounts	18,992	(32,831)
Net (decrease) increase in certificates of deposit	(9,820)	10,345
Repayment of FHLB advances - long term	(24,145)	(5,354)
Increase (decrease) in advances from borrowers for taxes and insurance	1,092	(49)
Cash dividends paid	(544)	(571)
Purchase of treasury stock		(1,960)
Net cash used in financing activities	(14,425)	(30,420)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	31,125	(26,122)
CASH AND CASH EQUIVALENTS-Beginning of period	82,698	117,081
CASH AND CASH EQUIVALENTS-End of period	113,823	90,959
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid on deposits and advances from FHLB	$ 4,470	$ 5,820

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	1. SIGNIFICANT ACCOUNTING POLICIES Prudential Bancorp, Inc. (the “Company”) is a Pennsylvania corporation and the parent holding company for Prudential Bank (the “Bank”). The Company is a registered bank holding company. The Bank is a community-oriented, Pennsylvania-chartered savings bank headquartered in South Philadelphia. The banking office network currently consists of the headquarters and main office (which includes a branch office), an administrative office, and nine additional full-service branch offices. Eight of the branch offices are located in Philadelphia (Philadelphia County), one is in Drexel Hill, Delaware County, and one is in Huntingdon Valley, Montgomery County (both Pennsylvania counties). The Bank maintains ATMs at all 10 of the banking offices. The Bank also provides on-line and mobile banking services. The Bank is subject to regulation by the Pennsylvania Department of Banking and Securities (the “Department”), as its chartering authority and primary regulator, and by the Federal Deposit Insurance Corporation (the “FDIC”), which insures the Bank’s deposits up to applicable limits. As a bank holding company, the Company is subject to the regulation of the Board of Governors of the Federal Reserve System. Basis of presentation – Use of Estimates in the Preparation of Financial Statements — Recent Accounting Pronouncements Not Yet Adopted In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments Update for SEC filers that are eligible to be smaller reporting companies, non-SEC filers, and all other companies to fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. We expect to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In May 2019, the FASB issued ASU 2019-05, Financial Instruments – Credit Losses, Topic 326, which allows entities to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost upon adoption of the new credit losses standard. To be eligible for the transition election, the existing financial asset must otherwise be both within the scope of the new credit losses standard and eligible for the applying the fair value option in ASC 825-10-3. The election must be applied on an instrument-by-instrument basis and is not available for either available-for-sale or held-to-maturity debt securities. For entities that elect the fair value option, the difference between the carrying amount and the fair value of the financial asset would be recognized through a cumulative-effect adjustment to opening retained earnings as of the date an entity adopted ASU 2016-13. Changes in fair value of that financial asset would subsequently be reported in current earnings. For entities that have not yet adopted ASU 2016-13, the effective dates and transition requirements are the same as those in ASU 2016-13. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position and/or results of operations. In November 2019, the FASB issued ASU 2019-10, Financial Instruments ‒ Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842) In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt – Modifications and Extinguishments (Subtopic 470-50), Compensation – Stock Compensation (Topic 718), and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40), ​ In October 2021, the FASB issued ASU 2021-07, Stock Compensation (Topic 718): Determining the Current Price of an Underlying Share for Equity-Classified Share-Based Awards ​ In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. For all other entities, the ASU is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. ​

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Dec. 31, 2021
EARNINGS PER SHARE
EARNINGS PER SHARE	2. EARNINGS PER SHARE Basic earnings per common share is computed by dividing net income available to common stockholders by the weighted average number of shares of common stock issued, net of any treasury shares and unearned restricted share awards, during the period. Diluted earnings per share is calculated by dividing net income available to common stockholders by the weighted average number of shares of common stock outstanding, net of any treasury shares, after consideration of the potential dilutive effect of common stock equivalents (CSEs), based upon the treasury stock method using an average market price for the period. The calculated basic and diluted earnings per share are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, ​ ​ ​ 2021 ​ 2020 ​ ​ ​ (Dollars in Thousands Except Per Share Data) ​ ​ Basic Diluted Basic Diluted ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income ​ $ 1,838 ​ $ 1,838 ​ $ 1,837 ​ $ 1,837 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ 7,769,095 ​ 7,765,095 ​ 8,104,713 ​ 8,104,713 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Effect of CSEs ​ — ​ 44,253 ​ — ​ 21,077 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Adjusted weighted average common shares used in earnings per share computation ​ 7,769,095 ​ 7,809,348 ​ 8,104,713 ​ 8,125,790 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share ​ $ 0.24 ​ $ 0.24 ​ $ 0.23 ​ $ 0.23 ​ ​ ​ As of December 31, 2021 and 2020, there were 299,728 and 282,728 shares of common stock, respectively, subject to options with exercise prices less than the then current market for the common stock and which were included in the computation of diluted earnings per share. At December 31, 2021 and 2020, there were 221,530 and 288,533 shares, respectively, that had exercise prices greater than the then current market value for the common stock and which were considered anti-dilutive at such dates.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	3 Months Ended
	Dec. 31, 2021
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS).
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	3. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following tables present the changes in accumulated other comprehensive income (loss) by component, net of tax, for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, ​ Three Months Ended December 31, ​ ​ ​ 2021 ​ 2021 ​ 2021 ​ 2020 ​ 2020 ​ 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Total ​ ​ ​ ​ ​ ​ ​ ​ ​ accumulated ​ ​ ​ ​ ​ ​ ​ accumulated ​ ​ ​ Unrealized gain ​ Unrealized gain (loss) ​ other ​ Unrealized gain ​ Unrealized gain (loss) ​ other ​ ​ ​ (loss) on AFS ​ on interest rate swaps ​ comprehensive ​ on AFS ​ on interest rate swaps ​ comprehensive ​ ​ securities (a) (a) loss securities (a) (a) loss ​ Beginning balance, October 1 ​ $ 6,098 ​ $ (8,273) ​ $ (2,175) ​ $ 10,585 ​ $ (13,528) ​ $ (2,943) ​ Other comprehensive (loss) income before reclassification ​ (945) ​ 2,703 ​ 1,758 ​ 1,636 ​ 1,100 ​ 2,736 ​ Total other comprehensive income (loss) ​ 5,153 ​ (5,570) ​ (417) ​ 12,221 ​ (12,428) ​ (207) ​ Ending balance, December 31 ​ $ 5,153 ​ $ (5,570) ​ $ (417) ​ $ 12,221 ​ $ (12,428) ​ $ (207) ​ (a) All amounts are net of tax. Amounts in parentheses indicate debits.

INVESTMENT AND MORTGAGE-BACKED

INVESTMENT AND MORTGAGE-BACKED SECURITIES	3 Months Ended
	Dec. 31, 2021
INVESTMENT AND MORTGAGE-BACKED SECURITIES
INVESTMENT AND MORTGAGE-BACKED SECURITIES	4. INVESTMENT AND MORTGAGE-BACKED SECURITIES The amortized cost and fair value of investment and mortgage-backed securities, with gross unrealized gains and losses, are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ Cost Gains Losses Value ​ ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. government and agency obligations ​ $ 2,951 ​ $ 71 ​ $ — ​ $ 3,022 State and political subdivisions ​ 73,562 ​ 2,592 ​ (18) ​ 76,136 Mortgage-backed securities - U.S. government agencies ​ ​ 114,351 ​ ​ 2,732 ​ ​ (836) ​ ​ 116,247 Corporate debt securities ​ 100,136 ​ 2,497 ​ (514) ​ 102,119 Total debt securities available for sale ​ $ 291,000 ​ $ 7,892 ​ $ (1,368) ​ $ 297,524 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ U.S. government and agency obligations ​ $ 1,000 ​ $ 150 ​ $ — ​ $ 1,150 State and political subdivisions ​ 12,939 ​ 659 ​ — ​ 13,598 Mortgage-backed securities - U.S. government agencies ​ 3,895 ​ 163 ​ (29) ​ 4,029 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ 17,834 ​ $ 972 ​ $ (29) ​ $ 18,777 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ Cost Gains Losses Value ​ ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. government and agency obligations ​ $ 3,117 ​ $ 77 ​ $ — ​ $ 3,194 State and political subdivisions ​ ​ 70,625 ​ 1,793 ​ (159) ​ 72,259 Mortgage-backed securities - U.S. government agencies ​ 131,842 ​ ​ 4,267 ​ ​ (756) ​ ​ 135,353 Corporate debt securities ​ 92,645 ​ 2,683 ​ (187) ​ 95,141 Total debt securities ​ $ 298,229 ​ $ 8,820 ​ $ (1,102) ​ $ 305,947 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ U.S. government and agency obligations ​ $ 1,000 ​ $ 173 ​ $ — ​ $ 1,173 State and political subdivisions ​ 14,983 ​ 727 ​ — ​ 15,710 Mortgage-backed securities - U.S. government agencies ​ 4,091 ​ 211 ​ (24) ​ 4,278 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ 20,074 ​ $ 1,111 ​ $ (24) ​ $ 21,161 ​ The Company recognized no holding gain on equity securities for the three months ended December 31, 2021 and a holding gain on equity securities of $11,000 during the three months ended December 31, 2020. ​ As of December 31, 2021, the Bank maintained $93.9 million of securities in a safekeeping account at the FHLB of Pittsburgh available to be used for collateral and convenience. As of December 31, 2021, the Bank was only required to hold $16.7 million as specific collateral for its borrowings from the FHLB of Pittsburgh; therefore the $77.2 million of excess securities as of such date were not restricted and could be sold or transferred if needed. The following table shows the gross unrealized losses and related fair values of the Company’s investment and mortgage-backed securities, aggregated by investment category and length of time that individual securities had been in a continuous loss position as of December 31, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Losses Value Losses Value Losses Value ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ State and political subdivisions ​ $ (18) ​ $ 2,100 ​ $ — ​ $ — ​ $ (18) ​ $ 2,100 Mortgage-backed securities -U.S. government agencies ​ (128) ​ 7,256 ​ (708) ​ 18,292 ​ (836) ​ 25,548 Corporate debt securities ​ (514) ​ 25,439 ​ — ​ — ​ (514) ​ 25,439 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities available for sale ​ $ (660) ​ $ 34,795 ​ $ (708) ​ $ 18,292 ​ $ (1,368) ​ $ 53,087 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ ​ ​ Mortgage-backed securities -U.S. government agencies ​ $ (29) ​ $ 1,257 ​ $ — ​ $ — ​ $ (29) ​ $ 1,257 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ (29) ​ $ 1,257 ​ $ — ​ $ — ​ $ (29) ​ $ 1,257 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ (689) ​ $ 36,052 ​ $ (708) ​ $ 18,292 ​ $ (1,397) ​ $ 54,344 ​ The following table shows the gross unrealized losses and related fair values of the Company’s investment securities, aggregated by investment category and length of time that individual securities had been in a continuous loss position as of September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Unrealized Fair Unrealized Fair Unrealized Fair ​ ​ Losses ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ State and political subdivisions ​ $ (93) ​ $ 14,383 ​ $ (66) ​ $ 4,417 ​ $ (159) ​ $ 18,800 Mortgage-backed securities - US government agencies ​ (487) ​ 18,493 ​ (269) ​ 7,849 ​ (756) ​ 26,342 Corporate debt securities ​ (187) ​ 24,816 ​ — ​ — ​ (187) ​ 24,816 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities available for sale ​ $ (767) ​ $ 57,692 ​ $ (335) ​ $ 12,266 ​ $ (1,102) ​ $ 69,958 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ ​ ​ Mortgage-backed securities - US government agencies ​ $ (24) ​ $ 1,269 ​ $ — ​ $ — ​ $ (24) ​ $ 1,269 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ (24) ​ $ 1,269 ​ $ — ​ $ — ​ $ (24) ​ $ 1,269 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ (791) ​ $ 58,961 ​ $ (335) ​ $ 12,266 ​ $ (1,126) ​ $ 71,227 ​ Management evaluates securities for other-than-temporary impairment (“OTTI”) at least once each quarter, and more frequently when economic or market concerns warrant such evaluation. The evaluation is based upon factors such as the creditworthiness of the issuers/guarantors, the underlying collateral, if applicable, and the continuing performance of the securities. Management also evaluates other facts and circumstances that may be indicative of an OTTI condition. This includes, but is not limited to, an evaluation of the type of security involved, the length of time and extent to which the fair value of the security has been less than cost, and the near-term prospects of the issuer. The Company assesses whether a credit loss exists with respect to a security by considering whether (1) the Company has the intent to sell the security, (2) it is more likely than not that it will be required to sell the security before recovery has occurred, or (3) it does not expect to recover the entire amortized cost basis of the security. The Company bifurcates the OTTI impact on impaired securities where impairment in value is deemed to be other than temporary between the component representing credit loss and the component representing loss related to other factors. The portion of the fair value decline attributable to credit loss must be recognized through a charge to earnings. The credit component is determined by comparing the present value of the cash flows expected to be collected, discounted at the rate in effect before recognizing any OTTI, with the amortized cost basis of the debt security. The Company uses the cash flows expected to be realized from the security, which includes assumptions about interest rates, timing and severity of defaults, estimates of potential recoveries, the cash flow distribution from the security and other factors, then applies a discount rate equal to the effective yield of the security. The difference between the present value of the expected cash flows and the amortized book value is considered a credit loss. The fair value of the security is determined using the same expected cash flows; the discount rate is a rate the Company determines from open market and other sources as appropriate for the particular security. The difference between the fair value and the security’s remaining amortized cost is recognized in other comprehensive income (loss). For the three months ended December 31, 2021 and 2020, the Company did not record any credit losses on investment securities through earnings. Mortgage-Backed Securities – U.S. Government sponsored agency or carry the full faith and credit of the United States through a government agency and all of them are currently rated AAA by at least one bond credit rating agency. As a result, the Company did not consider these investments to be other-than-temporarily impaired at December 31, 2021. Corporate Debt Securities State and political subdivisions The amortized cost and fair value of debt securities, 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. The maturity table below excludes mortgage-backed securities because the contractual maturities of such securities are not indicative of actual maturities due to significant prepayments. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ Held to Maturity ​ Available for Sale ​ Amortized Fair Amortized Fair ​ ​ Cost ​ Value ​ Cost ​ Value ​ ​ (Dollars in Thousands) Due within one year ​ $ 1,035 ​ $ 1,043 ​ $ — ​ $ — Due after one through five years ​ $ 5,421 ​ $ 5,889 ​ $ 45,130 ​ $ 46,181 Due after five through ten years ​ 3,448 ​ 3,515 ​ 58,152 ​ 59,184 Due after ten years ​ 4,035 ​ 4,301 ​ 73,367 ​ 75,912 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 13,939 ​ $ 14,748 ​ $ 176,649 ​ $ 181,277 ​ The Company sold no investment securities during the three month periods ended December 31, 2021 or 2020.

LOANS RECEIVABLE

LOANS RECEIVABLE	3 Months Ended
	Dec. 31, 2021
LOANS RECEIVABLE
LOANS RECEIVABLE	5. LOANS RECEIVABLE Loans receivable consist of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ September 30, ​ ​ 2021 2021 ​ ​ ​ (Dollars in Thousands) ​ One-to-four family residential ​ $ 190,269 ​ $ 202,330 ​ Multi-family residential ​ 73,069 ​ 76,122 ​ Commercial real estate ​ 164,508 ​ 165,992 ​ Construction and land development ​ 195,751 ​ 205,413 ​ Commercial business ​ 63,531 ​ 57,236 ​ Consumer ​ 516 ​ 530 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total loans ​ 687,644 ​ 707,623 ​ ​ ​ ​ ​ ​ ​ ​ ​ Undisbursed portion of loans-in-process ​ (94,524) ​ (80,620) ​ Deferred loan fees ​ 20 ​ (280) ​ Allowance for loan losses ​ (8,382) ​ (8,517) ​ ​ ​ ​ ​ ​ ​ ​ ​ Net loans ​ $ 584,758 ​ $ 618,206 ​ ​ The following table summarizes by loan segment the balance in the allowance for loan losses and the loans individually and collectively evaluated for impairment by loan segment at December 31, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One- to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four- ​ Multi-family ​ Commercial ​ Construction and ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ family residential ​ residential ​ real estate ​ land development ​ business ​ Consumer ​ Unallocated ​ Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for loan losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ ​ ​ $ — Collectively evaluated for impairment ​ ​ 1,656 ​ ​ 1,053 ​ ​ 2,300 ​ ​ 1,648 ​ ​ 925 ​ ​ 16 ​ ​ 784 ​ ​ 8,382 Total ending allowance balance ​ $ 1,656 ​ $ 1,053 ​ $ 2,300 ​ $ 1,648 ​ $ 925 ​ $ 16 ​ $ 784 ​ $ 8,382 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ 3,185 ​ $ — ​ $ 1,280 ​ $ 3,593 ​ $ — ​ $ — ​ ​ ​ ​ $ 8,058 Collectively evaluated for impairment ​ 187,084 ​ 73,069 ​ 163,228 ​ 192,158 ​ 63,531 ​ 516 ​ ​ ​ ​ 679,586 Total loans ​ $ 190,269 ​ $ 73,069 ​ $ 164,508 ​ $ 195,751 ​ $ 63,531 ​ $ 516 ​ ​ ​ ​ $ 687,644 ​ The following table summarizes by loan segment the balance in the allowance for loan losses and the loans individually and collectively evaluated for impairment by loan segment at September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One- to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four- ​ Multi-family ​ Commercial ​ Construction and ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ family residential residential real estate land development business Consumer ​ Unallocated Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for loan losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — Collectively evaluated for impairment ​ ​ 1,665 ​ ​ 1,051 ​ ​ 2,220 ​ ​ 1,968 ​ ​ 799 ​ ​ 15 ​ ​ 799 ​ ​ 8,517 Total ending allowance balance ​ $ 1,665 ​ $ 1,051 ​ $ 2,220 ​ $ 1,968 ​ $ 799 ​ $ 15 ​ $ 799 ​ $ 8,517 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ 3,006 ​ $ — ​ $ 1,280 ​ $ 4,093 ​ $ — ​ $ — ​ ​ ​ ​ $ 8,379 Collectively evaluated for impairment ​ 199,324 ​ 76,122 ​ 164,712 ​ 201,320 ​ 57,236 ​ 530 ​ ​ ​ ​ 699,244 Total loans ​ $ 202,330 ​ $ 76,122 ​ $ 165,992 ​ $ 205,413 ​ $ 57,236 ​ $ 530 ​ ​ ​ ​ $ 707,623 ​ The loan portfolio is segmented at a level that allows management to monitor both risk and performance. Management evaluates for potential impairment all construction loans, multi-family loans, commercial real estate loans, commercial business loans and all loans more than 90 days delinquent as to principal and/or interest. Loans are considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect in full the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Once the determination is made that a loan is impaired, the determination of whether a specific allocation of the allowance is necessary is generally measured by comparing the recorded investment in the loan to the fair value of the loan using one of the following three methods: (a) the present value of the expected future cash flows discounted at the loan’s effective interest rate; (b) the loan’s observable market price; or (c) the fair value of the collateral less selling costs. Management primarily utilizes the fair value of collateral method as a practically expedient alternative. On collateral method evaluations, any portion of the loan deemed uncollectible is charged-off against the loan loss allowance. The following table presents impaired loans by class as of December 31, 2021, segregated by those for which a specific allowance was required and those for which no specific allowance was required. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans with ​ ​ ​ ​ ​ ​ ​ ​ Impaired Loans with ​ No Specific ​ ​ ​ ​ ​ ​ Specific Allowance ​ Allowance ​ Total Impaired Loans ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unpaid ​ ​ Recorded ​ Related ​ Recorded ​ Recorded ​ Principal ​ Investment Allowance Investment Investment Balance One-to-four family residential ​ $ — ​ $ — ​ $ 3,185 ​ $ 3,185 ​ $ 3,483 Commercial real estate ​ — ​ — ​ 1,280 ​ 1,280 ​ 1,457 Construction and land development ​ — ​ — ​ 3,593 ​ 3,593 ​ 3,840 Total ​ $ — ​ $ — ​ $ 8,058 ​ $ 8,058 ​ $ 8,780 ​ The following table presents impaired loans by class as of September 30, 2021, segregated by those for which a specific allowance was required and those for which no specific allowance was required. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans with ​ ​ ​ ​ ​ ​ Impaired Loans with ​ No Specific ​ ​ ​ ​ ​ ​ ​ ​ Specific Allowance Allowance Total Impaired Loans ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unpaid ​ ​ Recorded Related Recorded Recorded Principal ​ Investment Allowance Investment Investment Balance One-to-four family residential ​ $ — ​ $ — ​ $ 3,006 ​ $ 3,006 ​ $ 3,304 Commercial real estate ​ — ​ — ​ 1,280 ​ 1,280 ​ 1,457 Construction and land development ​ — ​ — ​ 4,093 ​ 4,093 ​ 4,340 Total ​ $ — ​ $ — ​ $ 8,379 ​ $ 8,379 ​ $ 9,101 ​ The following tables present the average recorded investment in impaired loans and related interest income recognized for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2021 ​ ​ Average ​ ​ ​ ​ Income ​ ​ Recorded ​ Income Recognized ​ Recognized on ​ Investment on Accrual Basis Cash Basis ​ ​ (Dollars in Thousands) One-to-four family residential ​ $ 3,096 ​ $ 4 ​ $ 5 Commercial real estate ​ 1,280 ​ — ​ — Construction and land development ​ 3,843 ​ — ​ — Total impaired loans ​ $ 8,219 ​ $ 4 ​ $ 5 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2020 ​ ​ Average ​ ​ ​ ​ Income ​ ​ Recorded ​ Income Recognized ​ Recognized on ​ Investment on Accrual Basis Cash Basis ​ ​ (Dollars in Thousands) One-to-four family residential ​ $ 3,091 ​ $ 5 ​ $ — Commercial real estate ​ 1,373 ​ — ​ — Construction and land development ​ 8,475 ​ — ​ — Total impaired loans ​ $ 12,939 ​ $ 5 ​ $ — ​ ​ ​ Federal regulations and our loan policy require that the Company utilize an internal asset classification system as a means of reporting problem and potential problem assets. The Company has incorporated an internal asset classification system, consistent with Federal banking regulations, as a part of its credit monitoring system. Management currently classifies problem and potential problem assets as “special mention”, “substandard,” “doubtful” or “loss” assets. An asset is considered “substandard” if it is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. “Substandard” assets include those characterized by the “distinct possibility” that the insured institution will sustain “some loss” if the deficiencies are not corrected. Assets classified as “doubtful” have all of the weaknesses inherent in those classified “substandard” with the added characteristic that the weaknesses present make “collection or liquidation in full,” on the basis of currently existing facts, conditions, and values, “highly questionable and improbable.” Assets classified as “loss” are those considered “uncollectible” and of such little value that their continuance as assets without the establishment of a specific loss reserve is not warranted. Assets which do not currently expose the insured institution to sufficient risk to warrant classification in one of the three aforementioned categories but possess weaknesses are required to be designated “special mention.” The following tables present the classes of the loan portfolio in which a formal risk weighting system is utilized summarized by the aggregate “Pass” and the criticized category of “special mention”, and the classified categories of “substandard”, “doubtful” and “loss” within the Company’s risk rating system as applied to the loan portfolio. The Company had no loans classified as “doubtful” or “loss” at either of the dates presented. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ ​ ​ Special ​ ​ ​ ​ Total ​ Pass Mention Substandard Loans ​ ​ (Dollars in Thousands) One-to-four residential ​ $ 185,552 ​ $ 1,532 ​ $ 3,185 ​ $ 190,269 Multi-family residential ​ 73,069 ​ — ​ — ​ 73,069 Commercial real estate ​ 161,189 ​ 2,039 ​ 1,280 ​ 164,508 Construction and land development ​ 192,158 ​ — ​ 3,593 ​ 195,751 Commercial business ​ 63,531 ​ — ​ — ​ 63,531 Total ​ $ 675,499 ​ $ 3,571 ​ $ 8,058 ​ $ 687,128 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ Special ​ ​ ​ Total ​ Pass Mention Substandard Loans ​ ​ (Dollars in Thousands) One-to-four residential ​ $ 197,920 ​ $ 1,404 ​ $ 3,006 ​ $ 202,330 Multi-family residential ​ 71,497 ​ 4,625 ​ — ​ 76,122 Commercial real estate ​ 162,657 ​ 2,055 ​ 1,280 ​ 165,992 Construction and land development ​ 201,320 ​ — ​ 4,093 ​ 205,413 Commercial business ​ 57,236 ​ — ​ — ​ 57,236 Total ​ $ 690,630 ​ $ 8,084 ​ $ 8,379 ​ $ 707,093 ​ The Company evaluates the classification of consumer loans primarily on a pooled basis. If the Company becomes aware that adverse or distressed conditions exist that may affect a particular loan, the loan is downgraded following the above definitions of special mention, substandard, doubtful and loss. The following tables represent loans in which a formal risk rating system is not utilized, but loans are segregated between performing and non-performing based primarily on delinquency status. Non-performing loans that would be included in the table are those loans 90 days or more past due as to principal and/or interest that do not have a designated risk rating. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ Non- Total ​ ​ Performing ​ Performing ​ Loans ​ ​ (Dollars in Thousands) Consumer ​ $ 516 ​ $ — ​ $ 516 Total ​ $ 516 ​ $ — ​ $ 516 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ Non- Total ​ ​ Performing ​ Performing ​ Loans ​ ​ (Dollars in Thousands) Consumer ​ $ 530 ​ $ — ​ $ 530 Total ​ $ 530 ​ $ — ​ $ 530 ​ Management 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 due or overdue, as the case may be. The following tables present the loan categories of the loan portfolio summarized by the aging categories of performing loans, delinquent loans and nonaccrual loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 Days+ ​ ​ ​ ​ ​ 30 ‑ 89 Days ​ 90 Days + ​ Total ​ Total ​ Non- ​ Past Due ​ ​ Current ​ Past Due ​ Past Due ​ Past Due ​ Loans ​ Accrual ​ and Accruing ​ ​ (Dollars in Thousands) One-to-four family residential $ 186,910 ​ $ 1,532 ​ $ 1,827 ​ $ 3,359 ​ $ 190,269 ​ $ 3,185 ​ $ — Multi-family residential ​ 73,069 ​ — ​ — ​ — ​ 73,069 ​ — ​ — Commercial real estate ​ 162,579 ​ 649 ​ 1,280 ​ 1,929 ​ 164,508 ​ 1,280 ​ — Construction and land development ​ 192,158 ​ — ​ 3,593 ​ 3,593 ​ 195,751 ​ 3,593 ​ — Commercial business ​ 63,465 ​ 66 ​ — ​ 66 ​ 63,531 ​ — ​ — Consumer ​ 468 ​ 48 ​ — ​ 48 ​ 516 ​ — ​ — Total Loans ​ $ 678,649 ​ $ 2,295 ​ $ 6,700 ​ $ 8,995 ​ $ 687,644 ​ $ 8,058 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 Days+ ​ ​ ​ ​ ​ 30 ‑ 89 Days ​ 90 Days + ​ Total ​ Total ​ Non- ​ Past Due ​ ​ Current ​ Past Due ​ Past Due ​ Past Due ​ Loans ​ Accrual ​ and Accruing ​ ​ (Dollars in Thousands) One-to-four family residential ​ $ 199,799 ​ $ 487 ​ $ 2,044 ​ $ 2,531 ​ $ 202,330 ​ $ 3,006 ​ $ — Multi-family residential ​ 76,122 ​ — ​ — ​ — ​ 76,122 ​ — ​ — Commercial real estate ​ 164,712 ​ — ​ 1,280 ​ 1,280 ​ 165,992 ​ 1,280 ​ — Construction and land development ​ 201,320 ​ — ​ 4,093 ​ 4,093 ​ 205,413 ​ 4,093 ​ — Commercial business ​ 57,236 ​ — ​ — ​ — ​ 57,236 ​ — ​ — Consumer ​ 493 ​ 37 ​ — ​ 37 ​ 530 ​ — ​ — Total Loans ​ $ 699,682 ​ $ 524 ​ $ 7,417 ​ $ 7,941 ​ $ 707,623 ​ $ 8,379 ​ $ — ​ The allowance for loan losses is established through a provision for loan losses charged to expense. The Company maintains the allowance at a level believed to cover all known and inherent losses in the portfolio that are both probable and reasonable to estimate at each reporting date. Management reviews the allowance for loan losses no less than quarterly in order to identify these inherent losses and to assess the overall collection probability for the loan portfolio in view of these inherent losses. For each primary type of loan, a loss factor is established reflecting an estimate of the known and inherent losses in such loan type contained in the portfolio using both a quantitative analysis as well as consideration of qualitative factors. The evaluation process includes, among other things, an analysis of delinquency trends, non-performing loan trends, the level of charge-offs and recoveries, prior loss experience, total loans outstanding, the volume of loan originations, the type, size and geographic concentration of the Company’s loans, the value of collateral securing the loans, the borrowers’ ability to repay and repayment performance, the number of loans requiring heightened management oversight, local economic conditions and industry experience. For the three months ended December 31, 2021 and 2020, the analysis took into account the pandemic and its effects on the Company's business, especially with respect to commercial real estate, commercial business and construction and land development loans. Commercial real estate loans entail significant additional credit risks compared to owner-occupied one-to-four family residential mortgage loans, as they generally involve large loan balances concentrated with a single borrower or groups of related borrowers. In addition, the payment experience on loans secured by income-producing properties typically depends on the successful operation of the related real estate project and/or business operation of the borrower who is, in some cases, also the primary occupant, and thus may be subject to a greater extent to the effects of adverse conditions in the real estate market and in the economy in general. Commercial business loans typically involve a higher risk of default than residential loans of like duration since their repayment is generally dependent on the successful operation of the borrower’s business and the sufficiency of collateral, if any. Land acquisition, development and construction lending exposes the Company to greater credit risk than permanent mortgage financing. The repayment of land acquisition, development and construction loans depends upon the sale of the property to third parties and/or the availability of permanent financing upon completion of all improvements. These events may adversely affect the sale of the properties, potentially reducing both the borrowers’ ability to make required payments as well as reducing the value of the collateral property. Such lending is additionally subject to the risk that if the estimate of construction cost proves to be inaccurate, the Company potentially will be compelled to advance additional funds to allow completion of the project. In addition, if the estimate of value proves to be inaccurate, the Company may be confronted with a project, when completed, having less value than the loan amount. If the Company is forced to foreclose on a construction project prior to completion, there is no assurance that the Company would be able to recover the entire unpaid portion of the loan. The following tables summarize the primary segments of the allowance for loan losses. Activity in the allowance is presented for the three month periods ended December 31, 2021 and 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2021 ​ One- to Multi- ​ ​ Construction ​ ​ Loans to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four-family ​ family ​ Commercial ​ and land ​ Commercial ​ financial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ residential ​ residential ​ real estate ​ development ​ business ​ institutions ​ Leases ​ Consumer ​ Unallocated ​ Total ​ ​ (In Thousands) ALLL balance at September 30, 2021 ​ $ 1,665 ​ $ 1,051 ​ $ 2,220 ​ $ 1,968 ​ $ 799 ​ $ — ​ $ — ​ $ 15 ​ $ 799 ​ $ 8,517 Charge-offs ​ ​ — ​ ​ — ​ ​ (136) ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ (136) Recoveries ​ ​ 1 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1 Provision ​ ​ (10) ​ ​ 2 ​ ​ 216 ​ ​ (320) ​ ​ 126 ​ ​ ​ ​ ​ — ​ ​ 1 ​ ​ (15) ​ ​ — ALLL balance at December 31, 2021 ​ $ 1,656 ​ $ 1,053 ​ $ 2,300 ​ $ 1,648 ​ $ 925 ​ $ — ​ $ — ​ $ 16 ​ $ 784 ​ $ 8,382 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2020 ​ One- to Multi- ​ ​ Construction ​ ​ Loans to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four-family ​ family ​ Commercial ​ and land ​ Commercial ​ financial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ residential ​ residential ​ real estate ​ development ​ business ​ institutions ​ Leases ​ Consumer ​ Unallocated ​ Total ​ ​ (In Thousands) ​ ​ ​ ALLL balance at September 30, 2020 ​ $ 1,877 ​ $ 460 ​ $ 1,989 ​ $ 2,888 ​ $ 194 ​ $ 89 ​ $ 3 ​ $ 6 ​ $ 797 ​ $ 8,303 Charge-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Recoveries ​ ​ 1 ​ ​ — ​ ​ — ​ ​ — ​ ​ 14 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 15 Provision ​ ​ 133 ​ ​ (3) ​ ​ (54) ​ ​ (60) ​ ​ 111 ​ ​ (89) ​ ​ — ​ ​ — ​ ​ (38) ​ ​ — ALLL balance at December 31, 2020 ​ $ 2,011 ​ $ 457 ​ $ 1,935 ​ $ 2,828 ​ $ 319 ​ $ — ​ $ 3 ​ $ 6 ​ $ 759 ​ $ 8,318 ​ The Company recorded no provision for loan losses for the three months periods ended December 31, 2021 or 2020. During the quarter ended December 31, 2021, the Company recorded one charge off of $136,000 and recoveries of $1,000. During the quarter ended December 31, 2020, the Company recorded no charge offs and recoveries of $15,000. At December 31, 2021, the Company had three loans totaling $1.6 million that were classified as troubled debt restructurings (“TDRs”). All three TDRs are on non-accrual. Two of the TDRs consist of loans aggregating $898,000 secured by single-family residential properties and are performing in accordance with the restructured terms. The remaining TDR is a $705,000 commercial real estate loan classified as non-accrual and is part of a lending relationship totaling $5.5 million. The Company restructured one loan aggregating $516,000 as a TDR, during the three months ended December 31, 2021 The loan is on nonaccrual and will remain on nonaccrual until a sufficient payment history under the restructured terms is developed. The Company did not restructure any loans as a TDR during the three months ended December 31, 2020. No TDRs defaulted during the three month periods ending December 31, 2021 or 2020.

DEPOSITS

DEPOSITS	3 Months Ended
	Dec. 31, 2021
DEPOSITS.
DEPOSITS	6. DEPOSITS Deposits consist of the following major classifications: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ September 30, ​ ​ ​ 2021 ​ 2021 ​ ​ Amount Percent Amount Percent ​ ​ ​ (Dollars in Thousands) ​ Non-interest-bearing checking accounts ​ $ 35,594 4.9 % $ 37,409 5.3 % ​ Interest-bearing checking accounts ​ 107,451 14.9 % 87,752 12.3 % ​ Money market deposit accounts ​ 112,224 15.6 % 111,488 15.7 % ​ Passbook, club and statement savings ​ 230,357 32.0 % 229,989 32.3 % ​ Certificates maturing in six months or less ​ 127,557 17.7 % 143,767 20.2 % ​ Certificates maturing in more than six months ​ 107,501 14.9 % 101,110 14.2 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 720,684 100.0 % $ 711,515 100.0 % ​ ​ Certificates in the amount of $250,000 and over totaled $94.9 million as of December 31, 2021 and $95.3 million as of September 30, 2021.

ADVANCES FROM FEDERAL HOME LOAN

ADVANCES FROM FEDERAL HOME LOAN BANK - LONG TERM	3 Months Ended
	Dec. 31, 2021
ADVANCES FROM FEDERAL HOME LOAN BANK - LONG TERM
ADVANCES FROM FEDERAL HOME LOAN BANK - LONG TERM	7 Pursuant to collateral agreements with the FHLB of Pittsburgh, advances are secured by a blanket collateral of loans held by the Bank and qualifying fixed-income securities and FHLB stock. The long-term advances outstanding as of December 31, 2021 and September 30, 2021 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Lomg-term FHLB advances: ​ Maturity range ​ Weighted average ​ Stated interest rate range ​ December 31, ​ September 30, Description from to interest rate from to 2021 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in Thousands) Fixed Rate - Amortizing 1 ‑ Oct ‑ 21 30 ‑ Sep ‑ 22 ​ 2.99 % 2.94 % 3.05 % $ 1,519 ​ $ 2,227 Fixed Rate - Amortizing 1 ‑ Oct ‑ 22 30 ‑ Sep ‑ 23 ​ 2.52 % 1.94 % 3.11 % 3,115 ​ 3,551 Total ​ 2.76 % ​ ​ 4,634 ​ ​ 5,778 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fixed Rate - Advances 1 ‑ Oct ‑ 21 30 ‑ Sep ‑ 22 ​ 2.15 % 1.94 % 2.33 % 40,249 ​ 63,250 Fixed Rate - Advances 1 ‑ Oct ‑ 22 30 ‑ Sep ‑ 23 ​ 2.57 % 2.00 % 3.22 % 94,999 ​ 94,999 Fixed Rate - Advances 1 ‑ Oct ‑ 23 30 ‑ Sep ‑ 24 ​ 2.83 % 2.38 % 3.20 % 67,998 ​ 67,998 Total ​ 2.60 % ​ ​ 203,246 ​ ​ 226,247 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2.62 % ​ Total ​ $ 207,880 ​ $ 232,025 ​

DERIVATIVES

DERIVATIVES	3 Months Ended
	Dec. 31, 2021
DERIVATIVES
DERIVATIVES	8 The Bank has contracted with a third party to participate in interest rate swap contracts. There were thirteen cash flow hedges tied to wholesale funding at both December 31, 2021 and September 30, 2021. These interest rate swaps involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments. During the quarter ended December 31, 2021, no income was recognized as ineffectiveness through earnings, while $2,000 of income was recognized as ineffectiveness through earnings during the comparable period in fiscal 2021. There were nine interest rate swaps designated as fair value hedges involving the receipt of variable-rate payments from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements that were applicable to three loans and seven investment securities as of both December 31, 2021 and September 30, 2021. There was $10.1 million on deposit with the counterparty as collateral for the hedges at December 31, 2021. The fair value is recorded in the other liabilities section of the Consolidated Statement of Financial Condition. Below is a summary of the interest rate swap agreements and their terms as of December 31, 2021. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 Hedged ​ Notional ​ Pay Rate ​ Receive ​ Maturity Date ​ Unrealized Item Amount from to Rate from to ​ Gain (Loss) (Dollars in Thousands) State and political subdivisions ​ $ 21,570 ​ 3.06 % 3.07 % 3 Mth Libor ​ 1-Feb-27 ​ 1-May-28 ​ $ (1,983) Commercial loans ​ 23,656 4.10 % 5.74 % 1 Mth Libor +225 to 276 bp ​ 13-Jun-25 ​ 1-Aug-26 ​ — 30 day wholesale funding ​ ​ 90,000 ​ 1.36 % 2.70 % 1 Mth Libor ​ 15-Feb-24 ​ 12-Jun-26 ​ ​ (2,181) 90 day wholesale funding ​ ​ 135,000 ​ 2.51 % 2.78 % 3 Mth Libor ​ 11-Jan-24 ​ 27-Mar-24 ​ ​ (4,867) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ $ (9,031) ​ Below is a summary of the interest rate swap agreements and their terms as of September 30, 2021. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 Hedged ​ Notional ​ Pay Rate ​ Receive ​ Maturity Date ​ Unrealized Item Amount from to Rate from to Gain (Loss) (Dollars in T housands) State and political subdivisions ​ $ 21,570 ​ 3.06 % 3.07 % 3 Mth Libor ​ 1-Feb-27 ​ 1-May-28 ​ $ (2,365) Commercial loans ​ 23,656 4.10 % 5.74 % 1 Mth Libor +225 to 276 bp ​ 13-Jun-25 ​ 1-Aug-26 ​ — 30 day wholesale funding ​ ​ 90,000 ​ 1.36 % 2.70 % 1 Mth Libor ​ 15-Feb-24 ​ 12-Jun-26 ​ ​ (3,495) 90 day wholesale funding ​ ​ 135,000 ​ 2.51 % 2.78 % 3 Mth Libor ​ 11-Jan-24 ​ 27-Mar-24 ​ ​ (6,974) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ $ (12,834) ​ All interest swaps are carried at fair value in accordance with FASB ASC 815 “Derivatives and Hedging.” ​ In December 2021, the SEC issued, SEC Staff Statement on LIBOR Transition – Key Considerations for Market Participants ​

INCOME TAXES

INCOME TAXES	3 Months Ended
	Dec. 31, 2021
INCOME TAXES
INCOME TAXES	9 Items that gave rise to significant portions of deferred income taxes are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ September 30, ​ ​ 2021 2021 ​ ​ ​ (Dollars in Thousands) ​ Deferred tax assets: ​ ​ ​ Allowance for loan losses ​ $ 1,697 ​ $ 1,716 ​ Nonaccrual interest ​ 408 ​ 395 ​ Accrued vacation ​ 14 ​ 14 ​ Capital loss carryforward ​ 4 ​ 4 ​ Other real estate owned ​ 8 ​ — ​ Split dollar life insurance ​ 9 ​ 9 ​ Post-retirement benefits ​ 66 ​ 67 ​ Unrealized losses on interest rate swaps ​ ​ 1,481 ​ ​ 2,199 ​ Deferred compensation ​ 775 ​ 767 ​ Goodwill ​ 44 ​ 47 ​ Lease liability ​ ​ 266 ​ ​ 256 ​ Other ​ 25 ​ 79 ​ Employee benefit plans ​ 198 ​ 242 ​ Total deferred tax assets ​ 4,995 ​ 5,795 ​ Valuation allowance ​ (4) ​ (4) ​ Total deferred tax assets, net of valuation allowance ​ 4,991 ​ 5,791 ​ ​ ​ ​ ​ Deferred tax liabilities: ​ ​ ​ Property ​ 170 ​ 127 ​ Right of Use ​ ​ 242 ​ ​ 233 ​ Realized gain on equity securities ​ ​ 3 ​ ​ 3 ​ Unrealized gains on available for sale securities ​ ​ 1,370 ​ ​ 1,621 ​ Purchase accounting adjustments ​ 379 ​ 394 ​ Deferred loan fees ​ 436 ​ 392 ​ Total deferred tax liabilities ​ 2,600 ​ 2,770 ​ Net deferred tax assets ​ $ 2,391 ​ $ 3,021 ​ ​ The Company establishes a valuation allowance for deferred tax assets when management believes that the use of the deferred tax assets is not likely to be fully realized through future reversals of existing taxable temporary differences and/or, to a lesser extent, future taxable income. The tax deduction generated by the redemption of the shares of a mutual fund held by the Bank and the subsequent impairment charge on the assets acquired through the redemption in kind are considered capital losses and can only be utilized to the extent of capital gains recognized over a five year period, resulting in the establishment of a valuation allowance for the carryforward period. The valuation allowance totaled $4,000 at both December 31, 2021 and September 30, 2021. 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 Statements of Operations as a component of income tax expense. The Company’s federal and state income tax returns for taxable years through September 30, 2017 have been closed for purposes of examination by the Internal Revenue Service and the Pennsylvania Department of Revenue.

STOCK COMPENSATION PLANS

STOCK COMPENSATION PLANS	3 Months Ended
	Dec. 31, 2021
STOCK COMPENSATION PLANS
STOCK COMPENSATION PLANS	10. STOCK COMPENSATION PLANS The Company maintains the 2008 Recognition and Retention Plan (“RRP”) which is administered by a committee of the Board of Directors of the Company. The RRP provides for the grant of shares of common stock of the Company to officers, employees and directors of the Company. Grants can no longer be made pursuant to the 2008 RRP even if previously awarded grants are forfeited. During February 2015, shareholders approved the 2014 Stock Incentive Plan (the “2014 SIP”). As part of the 2014 SIP, a maximum of 285,655 shares of common stock can be awarded as restricted stock awards or units, of which 233,500 shares were awarded during February 2015. In March 2019, the Company granted 8,209 shares under the 2008 RRP and 18,291 shares under the 2014 SIP. There were no shares awarded during 2020 and 2021. Shares subject to awards under either plan generally vest at the rate of 20% per year over five years. Compensation expense related to the shares subject to restricted stock awards granted is recognized ratably over the five-year vesting period in an amount which totals the grant date fair value multiplied by the number of shares subject to the grant. During the three months ended December 31, 2021, an aggregate of $41,000 was recognized in compensation expense for the grants pursuant to the RRP and the 2014 SIP. During the three months ended December 31, 2020, $43,000 was recognized in compensation expense for the grants pursuant to the RRP and the 2014 SIP. At December 31, 2021, approximately $113,000 in additional compensation expense for unvested shares awarded related to the RRP and 2014 SIP remained unrecognized. A summary of the Company’s non-vested stock award activity for the three months ended December 31, 2021 is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ ​ December 31, 2021 ​ ​ Number of ​ Weighted Average ​ Shares Grant Date Fair Value Non-vested stock awards at October 1, 2021 23,056 ​ $ 17.78 Granted — ​ — Forfeited — ​ — Vested — ​ — Non-vested stock awards at December 31, 2021 23,056 ​ $ 17.78 ​ The Company maintains the 2008 Stock Option Plan (the “Option Plan”) which authorizes the grant of stock options to officers, employees and directors of the Company to acquire shares of common stock with an exercise price at least equal to the fair market value of the common stock on the grant date. Options generally become vested and exercisable at the rate of 20% per year over five years and are generally exercisable for a period of ten years after the grant date. A total of 533,808 shares of common stock were approved for future issuance pursuant to the Option Plan. As of September 30, 2019, all of the options had been awarded under the Option Plan and no grants can be made in the future by the Option Plan even if previously awarded grants are forfeited. The 2014 SIP reserved up to 714,145 shares for issuance pursuant to options. In July 2019, the Company granted 39,702 shares under the 2014 SIP. In September 2020, the Company granted 12,500 shares under the 2014 SIP. In June 2021, the Company granted 4,500 shares under the 2014 SIP. A summary of the status of the Company’s stock options under the Option Plan and the 2014 SIP for the three months ended December 31, 2021 is presented below: ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ ​ December 31, 2021 ​ Number of Weighted Average ​ ​ Shares ​ Exercise Price Options outstanding at October 1, 2021 521,258 ​ $ 14.23 Granted — ​ — Exercised — ​ — Forfeited — ​ — Outstanding at December 31, 2021 521,258 ​ $ 14.23 Exercisable at December 31, 2021 418,471 ​ $ 13.74 ​ The weighted average remaining contractual term was approximately 4.3 years for options outstanding as of December 31, 2021. The estimated fair value of options granted during fiscal 2020 was $2.31 per share and $3.91 for options granted in fiscal 2021. The fair value for grants made in fiscal 2020 was estimated on the date of grant using the Black-Scholes pricing model with the following assumptions: an exercise and fair value of $10.00, term of seven years, volatility rate of 33.22%, interest rate of 0.41% and a yield rate of 2.80%. The fair value for grants made in fiscal 2021 was estimated on the date of grant using the Black-Scholes pricing model with the following assumptions: an exercise and fair value of $13.86, term of seven years, volatility rate of 34.46%, interest rate of 1.19% and a yield rate of 2.02%. During the three months ended December 31, 2021 and 2020, $41,000 and $43,000, respectively, was recognized in compensation expense for options granted pursuant to the Option Plan and the 2014 SIP. At December 31, 2021, there was approximately $230,000 in additional compensation expense to be recognized for awarded options which remained outstanding and unvested at such date. The weighted average period over which this expense will be recognized is approximately 1.84 years.

COMMITMENTS AND CONTINGENT LIAB

COMMITMENTS AND CONTINGENT LIABILITIES	3 Months Ended
	Dec. 31, 2021
COMMITMENTS AND CONTINGENT LIABILITIES
COMMITMENTS AND CONTINGENT LIABILITIES	11. COMMITMENTS AND CONTINGENT LIABILITIES At December 31, 2021, the Company had $22.1 million in outstanding commitments to originate loans with market interest rates ranging from 4.25% to 5.00%. At September 30, 2021, the Company had $34.9 million in outstanding commitments to originate loans with market interest rates ranging from 2.99% to 5.00%. The aggregate undisbursed portion of loans-in-process amounted to $94.5 million at December 31, 2021 and $80.6 million at September 30, 2021. The Company also had commitments under unused lines of credit of $43.3 million as of December 31, 2021 and $68.1 million as of September 30, 2021 and letters of credit outstanding of $1.2 million as of December 31, 2021 and $1.2 million as of September 30, 2021. Among the Company’s contingent liabilities are exposures to limited recourse arrangements with respect to the Company’s sales of whole loans and participation interests. At December 31, 2021, the exposure, which represents a portion of credit risk associated with the interests sold, amounted to $1.0 million. This exposure is for the life of the related loans and payables, on our proportionate share, as actual losses are incurred. The Company is involved in various legal proceedings occurring in the ordinary course of business. There can be no assurance that any of the outstanding legal proceedings to which the Company is a party will not be decided adversely to the Company’s interests and not have a material adverse effect on the financial condition and operations of the Company.

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT	3 Months Ended
	Dec. 31, 2021
FAIR VALUE MEASUREMENT
FAIR VALUE MEASUREMENT	12. FAIR VALUE MEASUREMENT The fair value estimates presented herein are based on pertinent information available to management as of December 31, 2021 and September 30, 2021, respectively. Although management is not aware of any factors that would significantly affect the fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since that date and, therefore, current estimates of fair value may differ significantly from the amounts presented herein. Generally accepted accounting principles used in the United States establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value. The three broad levels of hierarchy are as follows: Level 1 Quoted prices in active markets for identical assets or liabilities. Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities; Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. Those assets and liabilities as of December 31, 2021 which are measured at fair value on a recurring basis are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Category Used for Fair Value Measurement ​ Level 1 Level 2 Level 3 Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ ​ ​ Securities available for sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government and agency obligations ​ $ — ​ $ 3,022 ​ $ — ​ $ 3,022 State and political subdivisions ​ — ​ 76,136 ​ — ​ 76,136 Mortgage-backed securities - U.S. Government agencies ​ — ​ 116,247 ​ — ​ 116,247 Corporate bonds ​ — ​ 102,119 ​ — ​ 102,119 Equity securities ​ 22 ​ — ​ — ​ 22 Loans held for sale ​ 406 ​ — ​ — ​ 406 Total ​ $ 428 ​ $ 297,524 ​ $ — ​ $ 297,952 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap contracts ​ $ — ​ $ 9,031 ​ $ — ​ $ 9,031 Total ​ $ — ​ $ 9,031 ​ $ — ​ $ 9,031 ​ Those assets and liabilities as of September 30, 2021 which are measured at fair value on a recurring basis are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Category Used for Fair Value Measurement ​ Level 1 Level 2 Level 3 Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ ​ ​ Securities available for sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government and agency obligations ​ $ — ​ $ 3,194 ​ $ — ​ $ 3,194 State and political subdivisions ​ ​ — ​ 72,259 ​ — ​ 72,259 Mortgage-backed securities - U.S. Government agencies ​ — ​ 135,353 ​ — ​ 135,353 Corporate bonds ​ — ​ 95,141 ​ — ​ 95,141 Equity securities ​ 22 ​ — ​ — ​ 22 Total ​ $ 22 ​ $ 305,947 ​ $ — ​ $ 305,969 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap contracts ​ $ — ​ $ 12,834 ​ $ — ​ $ 12,834 Total ​ $ — ​ $ 12,834 ​ $ — ​ $ 12,834 ​ Certain assets are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). The Company measures impaired loans and real estate owned at fair value on a non-recurring basis. ​ Investments and Mortgage-Backed Securities ​ The fair value of investment and mortgage-backed securities is based on quoted market prices, dealer quotes, and prices obtained from independent pricing services. ​ Impaired Loans Collateral dependent impaired loans are based on the fair value of the collateral which is based on appraisals and would be categorized as Level 2 measurement. In some cases, adjustments are made to the appraised values for various factors including the age of the appraisal, age of the comparable included in the appraisal, and known changes in the market and in the collateral. These adjustments are based upon unobservable inputs, and therefore, the fair value measurement of these assets has been categorized as a Level 3 measurement. These loans are reviewed for impairment and written down to their net realizable value by charges against the allowance for loan losses. There were no loans carried at fair value at December 31, 2021 or September 30, 2021. ​ Real Estate Owned ​ Once an asset is determined to be uncollectible, the underlying collateral is generally repossessed and reclassified to foreclosed real estate and repossessed assets. These repossessed assets are carried at the lower of cost or fair value of the collateral, based on independent appraisals, less cost to sell and would be categorized as Level 3 measurement. In some cases, adjustments are made to the appraised values for various factors including the age of the appraisal, the age of the comparables included in the appraisal, and known changes in the market and in the collateral. Thus the evaluations are based upon unobservable inputs, and therefore, the fair value measurement of these assets has been categorized as a Level 3 measurement. ​ Summary of Non-Recurring Fair Value Measurements ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2021 ​ ​ (Dollars in Thousands) ​ Level 1 Level 2 Level 3 Total Other real estate owned ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 Total ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At September 30, 2021 ​ ​ (Dollars in Thousands) ​ Level 1 Level 2 Level 3 Total Other real estate owned ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 Total ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 ​ ​ ​ The following table provides information describing the valuation process used to determine nonrecurring fair value measurements categorized within level 3 of the fair value hierarchy: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2021 ​ ​ ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ Valuation ​ ​ ​ Range/ ​ Fair Value Technique Unobservable Input Weighted Ave. Other real estate owned ​ $ 4,109 Property appraisals (1) (3) Management discount for selling costs, property type and market volatility (2) 2% discount ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At September 30, 2021 ​ ​ ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ Valuation ​ ​ ​ Range/ ​ Fair Value Technique Unobservable Input Weighted Ave. Other real estate owned ​ $ 4,109 Property appraisals (1) (3) Management discount for selling costs, property type and market volatility (2) 2% discount ​ (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally includes 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 and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal. (3) Includes qualitative adjustments by management and estimated liquidation expenses. ​ The fair value of financial instruments has been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is necessarily required to interpret market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts the Company could realize in a current market exchange. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. For cash and cash equivalents, certificates of deposit, accrued interest receivable, restricted bank stock, bank owned life insurance and accrued interest payable the carrying value is a reasonable estimate of fair value and are considered a level 1 measurement. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at ​ ​ Carrying ​ Fair ​ December 31, 2021 ​ Amount Value (Level 1) (Level 2) (Level 3) ​ ​ (Dollars in Thousands) ​ ​ ​ Assets: ​ ​ ​ ​ ​ Investment and mortgage-backed securities held to maturity ​ $ 17,834 ​ $ 18,777 ​ $ — ​ $ 18,777 ​ $ — Loans receivable, net ​ ​ 584,758 ​ ​ 582,718 ​ ​ — ​ ​ — ​ ​ 582,718 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Certificates of deposit ​ ​ 235,058 ​ ​ 241,342 ​ ​ — ​ ​ — ​ ​ 241,342 Advances from FHLB -long-term ​ ​ 207,880 ​ ​ 213,008 ​ ​ — ​ ​ — ​ ​ 213,008 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at ​ ​ Carrying ​ Fair ​ September 30, 2021 ​ Amount Value (Level 1) (Level 2) (Level 3) ​ ​ (Dollars in Thousands) ​ ​ ​ Assets: ​ ​ ​ ​ ​ Investment and mortgage-backed securities held to maturity ​ $ 20,074 ​ $ 21,161 ​ $ — ​ $ 21,161 ​ $ — Loans receivable, net ​ ​ 618,206 ​ ​ 620,017 ​ ​ ​ ​ ​ ​ ​ ​ 620,017 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Certificates of deposit ​ ​ 244,877 ​ ​ 252,510 ​ ​ — ​ ​ — ​ ​ 252,510 Advances from FHLB -long-term ​ ​ 232,025 ​ ​ 239,301 ​ ​ — ​ ​ — ​ ​ 239,301 ​

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	3 Months Ended
	Dec. 31, 2021
GOODWILL AND OTHER INTANGIBLE ASSETS
GOODWILL AND OTHER INTANGIBLE ASSETS	13. GOODWILL AND OTHER INTANGIBLE ASSETS The Company’s goodwill and intangible assets are related to the acquisition of Polonia Bancorp, Inc., which was completed as of January 1, 2017. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance ​ ​ ​ ​ ​ ​ ​ Balance ​ ​ ​ ​ October 1, ​ Additions/ ​ ​ ​ ​ December 31, ​ Amortization ​ 2021 Adjustments Amortization 2021 Period ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in Thousands) ​ ​ Goodwill ​ $ 6,102 ​ $ — ​ $ — ​ $ 6,102 Core deposit intangible ​ 246 ​ — ​ (22) ​ 224 10 years ​ ​ $ 6,348 ​ $ — ​ $ (22) ​ $ 6,326 ​ As of December 31, 2021, the current fiscal year and the future fiscal periods amortization expense for the core deposit intangible is: ​ ​ ​ ​ ​ (in Thousands) ​ ​ ​ ​ ​ ​ 2022 ​ $ 56 2023 ​ 64 2024 ​ 49 2025 ​ 34 2026 ​ 18 Thereafter ​ 3 ​ ​ $ 224 ​

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of presentation	Basis of presentation –
Use of Estimates in the Preparation of Financial Statements	Use of Estimates in the Preparation of Financial Statements —
Recent Accounting Pronouncements Not Yet Adopted	Recent Accounting Pronouncements Not Yet Adopted In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments Update for SEC filers that are eligible to be smaller reporting companies, non-SEC filers, and all other companies to fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. We expect to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In May 2019, the FASB issued ASU 2019-05, Financial Instruments – Credit Losses, Topic 326, which allows entities to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost upon adoption of the new credit losses standard. To be eligible for the transition election, the existing financial asset must otherwise be both within the scope of the new credit losses standard and eligible for the applying the fair value option in ASC 825-10-3. The election must be applied on an instrument-by-instrument basis and is not available for either available-for-sale or held-to-maturity debt securities. For entities that elect the fair value option, the difference between the carrying amount and the fair value of the financial asset would be recognized through a cumulative-effect adjustment to opening retained earnings as of the date an entity adopted ASU 2016-13. Changes in fair value of that financial asset would subsequently be reported in current earnings. For entities that have not yet adopted ASU 2016-13, the effective dates and transition requirements are the same as those in ASU 2016-13. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position and/or results of operations. In November 2019, the FASB issued ASU 2019-10, Financial Instruments ‒ Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842) In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt – Modifications and Extinguishments (Subtopic 470-50), Compensation – Stock Compensation (Topic 718), and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40), ​ In October 2021, the FASB issued ASU 2021-07, Stock Compensation (Topic 718): Determining the Current Price of an Underlying Share for Equity-Classified Share-Based Awards ​ In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. For all other entities, the ASU is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. ​

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	3 Months Ended
	Dec. 31, 2021
EARNINGS PER SHARE
Schedule of basic and diluted earnings per share	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, ​ ​ ​ 2021 ​ 2020 ​ ​ ​ (Dollars in Thousands Except Per Share Data) ​ ​ Basic Diluted Basic Diluted ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income ​ $ 1,838 ​ $ 1,838 ​ $ 1,837 ​ $ 1,837 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ 7,769,095 ​ 7,765,095 ​ 8,104,713 ​ 8,104,713 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Effect of CSEs ​ — ​ 44,253 ​ — ​ 21,077 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Adjusted weighted average common shares used in earnings per share computation ​ 7,769,095 ​ 7,809,348 ​ 8,104,713 ​ 8,125,790 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share ​ $ 0.24 ​ $ 0.24 ​ $ 0.23 ​ $ 0.23 ​

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	3 Months Ended
	Dec. 31, 2021
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS).
Schedule of changes in accumulated other comprehensive (loss) income	The following tables present the changes in accumulated other comprehensive income (loss) by component, net of tax, for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, ​ Three Months Ended December 31, ​ ​ ​ 2021 ​ 2021 ​ 2021 ​ 2020 ​ 2020 ​ 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Total ​ ​ ​ ​ ​ ​ ​ ​ ​ accumulated ​ ​ ​ ​ ​ ​ ​ accumulated ​ ​ ​ Unrealized gain ​ Unrealized gain (loss) ​ other ​ Unrealized gain ​ Unrealized gain (loss) ​ other ​ ​ ​ (loss) on AFS ​ on interest rate swaps ​ comprehensive ​ on AFS ​ on interest rate swaps ​ comprehensive ​ ​ securities (a) (a) loss securities (a) (a) loss ​ Beginning balance, October 1 ​ $ 6,098 ​ $ (8,273) ​ $ (2,175) ​ $ 10,585 ​ $ (13,528) ​ $ (2,943) ​ Other comprehensive (loss) income before reclassification ​ (945) ​ 2,703 ​ 1,758 ​ 1,636 ​ 1,100 ​ 2,736 ​ Total other comprehensive income (loss) ​ 5,153 ​ (5,570) ​ (417) ​ 12,221 ​ (12,428) ​ (207) ​ Ending balance, December 31 ​ $ 5,153 ​ $ (5,570) ​ $ (417) ​ $ 12,221 ​ $ (12,428) ​ $ (207) ​ (a) All amounts are net of tax. Amounts in parentheses indicate debits.

INVESTMENT AND MORTGAGE-BACKE_2

INVESTMENT AND MORTGAGE-BACKED SECURITIES (Tables)	3 Months Ended
	Dec. 31, 2021
INVESTMENT AND MORTGAGE-BACKED SECURITIES
Schedule of amortized cost and fair value of securities, with gross unrealized gains and losses	The amortized cost and fair value of investment and mortgage-backed securities, with gross unrealized gains and losses, are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ Cost Gains Losses Value ​ ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. government and agency obligations ​ $ 2,951 ​ $ 71 ​ $ — ​ $ 3,022 State and political subdivisions ​ 73,562 ​ 2,592 ​ (18) ​ 76,136 Mortgage-backed securities - U.S. government agencies ​ ​ 114,351 ​ ​ 2,732 ​ ​ (836) ​ ​ 116,247 Corporate debt securities ​ 100,136 ​ 2,497 ​ (514) ​ 102,119 Total debt securities available for sale ​ $ 291,000 ​ $ 7,892 ​ $ (1,368) ​ $ 297,524 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ U.S. government and agency obligations ​ $ 1,000 ​ $ 150 ​ $ — ​ $ 1,150 State and political subdivisions ​ 12,939 ​ 659 ​ — ​ 13,598 Mortgage-backed securities - U.S. government agencies ​ 3,895 ​ 163 ​ (29) ​ 4,029 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ 17,834 ​ $ 972 ​ $ (29) ​ $ 18,777 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ Cost Gains Losses Value ​ ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. government and agency obligations ​ $ 3,117 ​ $ 77 ​ $ — ​ $ 3,194 State and political subdivisions ​ ​ 70,625 ​ 1,793 ​ (159) ​ 72,259 Mortgage-backed securities - U.S. government agencies ​ 131,842 ​ ​ 4,267 ​ ​ (756) ​ ​ 135,353 Corporate debt securities ​ 92,645 ​ 2,683 ​ (187) ​ 95,141 Total debt securities ​ $ 298,229 ​ $ 8,820 ​ $ (1,102) ​ $ 305,947 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ U.S. government and agency obligations ​ $ 1,000 ​ $ 173 ​ $ — ​ $ 1,173 State and political subdivisions ​ 14,983 ​ 727 ​ — ​ 15,710 Mortgage-backed securities - U.S. government agencies ​ 4,091 ​ 211 ​ (24) ​ 4,278 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ 20,074 ​ $ 1,111 ​ $ (24) ​ $ 21,161 ​
Schedule of gross unrealized losses and related fair values of investment securities	The following table shows the gross unrealized losses and related fair values of the Company’s investment and mortgage-backed securities, aggregated by investment category and length of time that individual securities had been in a continuous loss position as of December 31, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Losses Value Losses Value Losses Value ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ State and political subdivisions ​ $ (18) ​ $ 2,100 ​ $ — ​ $ — ​ $ (18) ​ $ 2,100 Mortgage-backed securities -U.S. government agencies ​ (128) ​ 7,256 ​ (708) ​ 18,292 ​ (836) ​ 25,548 Corporate debt securities ​ (514) ​ 25,439 ​ — ​ — ​ (514) ​ 25,439 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities available for sale ​ $ (660) ​ $ 34,795 ​ $ (708) ​ $ 18,292 ​ $ (1,368) ​ $ 53,087 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ ​ ​ Mortgage-backed securities -U.S. government agencies ​ $ (29) ​ $ 1,257 ​ $ — ​ $ — ​ $ (29) ​ $ 1,257 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ (29) ​ $ 1,257 ​ $ — ​ $ — ​ $ (29) ​ $ 1,257 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ (689) ​ $ 36,052 ​ $ (708) ​ $ 18,292 ​ $ (1,397) ​ $ 54,344 ​ The following table shows the gross unrealized losses and related fair values of the Company’s investment securities, aggregated by investment category and length of time that individual securities had been in a continuous loss position as of September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less than 12 months ​ More than 12 months ​ Total ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Unrealized Fair Unrealized Fair Unrealized Fair ​ ​ Losses ​ Value ​ Losses ​ Value ​ Losses ​ Value ​ ​ (Dollars in Thousands) Securities Available for Sale: ​ ​ ​ ​ ​ ​ ​ ​ State and political subdivisions ​ $ (93) ​ $ 14,383 ​ $ (66) ​ $ 4,417 ​ $ (159) ​ $ 18,800 Mortgage-backed securities - US government agencies ​ (487) ​ 18,493 ​ (269) ​ 7,849 ​ (756) ​ 26,342 Corporate debt securities ​ (187) ​ 24,816 ​ — ​ — ​ (187) ​ 24,816 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities available for sale ​ $ (767) ​ $ 57,692 ​ $ (335) ​ $ 12,266 ​ $ (1,102) ​ $ 69,958 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities Held to Maturity: ​ ​ ​ ​ ​ ​ Mortgage-backed securities - US government agencies ​ $ (24) ​ $ 1,269 ​ $ — ​ $ — ​ $ (24) ​ $ 1,269 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total securities held to maturity ​ $ (24) ​ $ 1,269 ​ $ — ​ $ — ​ $ (24) ​ $ 1,269 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ (791) ​ $ 58,961 ​ $ (335) ​ $ 12,266 ​ $ (1,126) ​ $ 71,227
Schedule of amortized cost and fair value of debt securities by contractual maturity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ Held to Maturity ​ Available for Sale ​ Amortized Fair Amortized Fair ​ ​ Cost ​ Value ​ Cost ​ Value ​ ​ (Dollars in Thousands) Due within one year ​ $ 1,035 ​ $ 1,043 ​ $ — ​ $ — Due after one through five years ​ $ 5,421 ​ $ 5,889 ​ $ 45,130 ​ $ 46,181 Due after five through ten years ​ 3,448 ​ 3,515 ​ 58,152 ​ 59,184 Due after ten years ​ 4,035 ​ 4,301 ​ 73,367 ​ 75,912 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 13,939 ​ $ 14,748 ​ $ 176,649 ​ $ 181,277

LOANS RECEIVABLE (Tables)

LOANS RECEIVABLE (Tables)	3 Months Ended
	Dec. 31, 2021
LOANS RECEIVABLE
Schedule of loans receivable	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ September 30, ​ ​ 2021 2021 ​ ​ ​ (Dollars in Thousands) ​ One-to-four family residential ​ $ 190,269 ​ $ 202,330 ​ Multi-family residential ​ 73,069 ​ 76,122 ​ Commercial real estate ​ 164,508 ​ 165,992 ​ Construction and land development ​ 195,751 ​ 205,413 ​ Commercial business ​ 63,531 ​ 57,236 ​ Consumer ​ 516 ​ 530 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total loans ​ 687,644 ​ 707,623 ​ ​ ​ ​ ​ ​ ​ ​ ​ Undisbursed portion of loans-in-process ​ (94,524) ​ (80,620) ​ Deferred loan fees ​ 20 ​ (280) ​ Allowance for loan losses ​ (8,382) ​ (8,517) ​ ​ ​ ​ ​ ​ ​ ​ ​ Net loans ​ $ 584,758 ​ $ 618,206 ​
Schedule of loans individually and collectively evaluated for impairment by loan segment	The following table summarizes by loan segment the balance in the allowance for loan losses and the loans individually and collectively evaluated for impairment by loan segment at December 31, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One- to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four- ​ Multi-family ​ Commercial ​ Construction and ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ family residential ​ residential ​ real estate ​ land development ​ business ​ Consumer ​ Unallocated ​ Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for loan losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ ​ ​ $ — Collectively evaluated for impairment ​ ​ 1,656 ​ ​ 1,053 ​ ​ 2,300 ​ ​ 1,648 ​ ​ 925 ​ ​ 16 ​ ​ 784 ​ ​ 8,382 Total ending allowance balance ​ $ 1,656 ​ $ 1,053 ​ $ 2,300 ​ $ 1,648 ​ $ 925 ​ $ 16 ​ $ 784 ​ $ 8,382 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ 3,185 ​ $ — ​ $ 1,280 ​ $ 3,593 ​ $ — ​ $ — ​ ​ ​ ​ $ 8,058 Collectively evaluated for impairment ​ 187,084 ​ 73,069 ​ 163,228 ​ 192,158 ​ 63,531 ​ 516 ​ ​ ​ ​ 679,586 Total loans ​ $ 190,269 ​ $ 73,069 ​ $ 164,508 ​ $ 195,751 ​ $ 63,531 ​ $ 516 ​ ​ ​ ​ $ 687,644 ​ The following table summarizes by loan segment the balance in the allowance for loan losses and the loans individually and collectively evaluated for impairment by loan segment at September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One- to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four- ​ Multi-family ​ Commercial ​ Construction and ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ family residential residential real estate land development business Consumer ​ Unallocated Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for loan losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — Collectively evaluated for impairment ​ ​ 1,665 ​ ​ 1,051 ​ ​ 2,220 ​ ​ 1,968 ​ ​ 799 ​ ​ 15 ​ ​ 799 ​ ​ 8,517 Total ending allowance balance ​ $ 1,665 ​ $ 1,051 ​ $ 2,220 ​ $ 1,968 ​ $ 799 ​ $ 15 ​ $ 799 ​ $ 8,517 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated for impairment ​ $ 3,006 ​ $ — ​ $ 1,280 ​ $ 4,093 ​ $ — ​ $ — ​ ​ ​ ​ $ 8,379 Collectively evaluated for impairment ​ 199,324 ​ 76,122 ​ 164,712 ​ 201,320 ​ 57,236 ​ 530 ​ ​ ​ ​ 699,244 Total loans ​ $ 202,330 ​ $ 76,122 ​ $ 165,992 ​ $ 205,413 ​ $ 57,236 ​ $ 530 ​ ​ ​ ​ $ 707,623
Schedule of impaired loans by class, segregated by those for which a specific allowance was required and those for which a specific allowance was not necessary	The following table presents impaired loans by class as of December 31, 2021, segregated by those for which a specific allowance was required and those for which no specific allowance was required. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans with ​ ​ ​ ​ ​ ​ ​ ​ Impaired Loans with ​ No Specific ​ ​ ​ ​ ​ ​ Specific Allowance ​ Allowance ​ Total Impaired Loans ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unpaid ​ ​ Recorded ​ Related ​ Recorded ​ Recorded ​ Principal ​ Investment Allowance Investment Investment Balance One-to-four family residential ​ $ — ​ $ — ​ $ 3,185 ​ $ 3,185 ​ $ 3,483 Commercial real estate ​ — ​ — ​ 1,280 ​ 1,280 ​ 1,457 Construction and land development ​ — ​ — ​ 3,593 ​ 3,593 ​ 3,840 Total ​ $ — ​ $ — ​ $ 8,058 ​ $ 8,058 ​ $ 8,780 ​ The following table presents impaired loans by class as of September 30, 2021, segregated by those for which a specific allowance was required and those for which no specific allowance was required. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans with ​ ​ ​ ​ ​ ​ Impaired Loans with ​ No Specific ​ ​ ​ ​ ​ ​ ​ ​ Specific Allowance Allowance Total Impaired Loans ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unpaid ​ ​ Recorded Related Recorded Recorded Principal ​ Investment Allowance Investment Investment Balance One-to-four family residential ​ $ — ​ $ — ​ $ 3,006 ​ $ 3,006 ​ $ 3,304 Commercial real estate ​ — ​ — ​ 1,280 ​ 1,280 ​ 1,457 Construction and land development ​ — ​ — ​ 4,093 ​ 4,093 ​ 4,340 Total ​ $ — ​ $ — ​ $ 8,379 ​ $ 8,379 ​ $ 9,101
Schedule of average investment in impaired loans and related interest income recognized	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2021 ​ ​ Average ​ ​ ​ ​ Income ​ ​ Recorded ​ Income Recognized ​ Recognized on ​ Investment on Accrual Basis Cash Basis ​ ​ (Dollars in Thousands) One-to-four family residential ​ $ 3,096 ​ $ 4 ​ $ 5 Commercial real estate ​ 1,280 ​ — ​ — Construction and land development ​ 3,843 ​ — ​ — Total impaired loans ​ $ 8,219 ​ $ 4 ​ $ 5 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2020 ​ ​ Average ​ ​ ​ ​ Income ​ ​ Recorded ​ Income Recognized ​ Recognized on ​ Investment on Accrual Basis Cash Basis ​ ​ (Dollars in Thousands) One-to-four family residential ​ $ 3,091 ​ $ 5 ​ $ — Commercial real estate ​ 1,373 ​ — ​ — Construction and land development ​ 8,475 ​ — ​ — Total impaired loans ​ $ 12,939 ​ $ 5 ​ $ — ​ ​ ​
Schedule of classes of the loan portfolio in which a formal risk weighting system is utilized	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ ​ ​ Special ​ ​ ​ ​ Total ​ Pass Mention Substandard Loans ​ ​ (Dollars in Thousands) One-to-four residential ​ $ 185,552 ​ $ 1,532 ​ $ 3,185 ​ $ 190,269 Multi-family residential ​ 73,069 ​ — ​ — ​ 73,069 Commercial real estate ​ 161,189 ​ 2,039 ​ 1,280 ​ 164,508 Construction and land development ​ 192,158 ​ — ​ 3,593 ​ 195,751 Commercial business ​ 63,531 ​ — ​ — ​ 63,531 Total ​ $ 675,499 ​ $ 3,571 ​ $ 8,058 ​ $ 687,128 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ Special ​ ​ ​ Total ​ Pass Mention Substandard Loans ​ ​ (Dollars in Thousands) One-to-four residential ​ $ 197,920 ​ $ 1,404 ​ $ 3,006 ​ $ 202,330 Multi-family residential ​ 71,497 ​ 4,625 ​ — ​ 76,122 Commercial real estate ​ 162,657 ​ 2,055 ​ 1,280 ​ 165,992 Construction and land development ​ 201,320 ​ — ​ 4,093 ​ 205,413 Commercial business ​ 57,236 ​ — ​ — ​ 57,236 Total ​ $ 690,630 ​ $ 8,084 ​ $ 8,379 ​ $ 707,093 ​
Schedule of loans in which a formal risk rating system is not utilized, but loans are segregated between performing and non-performing based primarily on delinquency status	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ Non- Total ​ ​ Performing ​ Performing ​ Loans ​ ​ (Dollars in Thousands) Consumer ​ $ 516 ​ $ — ​ $ 516 Total ​ $ 516 ​ $ — ​ $ 516 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ Non- Total ​ ​ Performing ​ Performing ​ Loans ​ ​ (Dollars in Thousands) Consumer ​ $ 530 ​ $ — ​ $ 530 Total ​ $ 530 ​ $ — ​ $ 530
Schedule of loan categories of the loan portfolio summarized by the aging categories of performing and delinquent loans and nonaccrual loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 Days+ ​ ​ ​ ​ ​ 30 ‑ 89 Days ​ 90 Days + ​ Total ​ Total ​ Non- ​ Past Due ​ ​ Current ​ Past Due ​ Past Due ​ Past Due ​ Loans ​ Accrual ​ and Accruing ​ ​ (Dollars in Thousands) One-to-four family residential $ 186,910 ​ $ 1,532 ​ $ 1,827 ​ $ 3,359 ​ $ 190,269 ​ $ 3,185 ​ $ — Multi-family residential ​ 73,069 ​ — ​ — ​ — ​ 73,069 ​ — ​ — Commercial real estate ​ 162,579 ​ 649 ​ 1,280 ​ 1,929 ​ 164,508 ​ 1,280 ​ — Construction and land development ​ 192,158 ​ — ​ 3,593 ​ 3,593 ​ 195,751 ​ 3,593 ​ — Commercial business ​ 63,465 ​ 66 ​ — ​ 66 ​ 63,531 ​ — ​ — Consumer ​ 468 ​ 48 ​ — ​ 48 ​ 516 ​ — ​ — Total Loans ​ $ 678,649 ​ $ 2,295 ​ $ 6,700 ​ $ 8,995 ​ $ 687,644 ​ $ 8,058 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 90 Days+ ​ ​ ​ ​ ​ 30 ‑ 89 Days ​ 90 Days + ​ Total ​ Total ​ Non- ​ Past Due ​ ​ Current ​ Past Due ​ Past Due ​ Past Due ​ Loans ​ Accrual ​ and Accruing ​ ​ (Dollars in Thousands) One-to-four family residential ​ $ 199,799 ​ $ 487 ​ $ 2,044 ​ $ 2,531 ​ $ 202,330 ​ $ 3,006 ​ $ — Multi-family residential ​ 76,122 ​ — ​ — ​ — ​ 76,122 ​ — ​ — Commercial real estate ​ 164,712 ​ — ​ 1,280 ​ 1,280 ​ 165,992 ​ 1,280 ​ — Construction and land development ​ 201,320 ​ — ​ 4,093 ​ 4,093 ​ 205,413 ​ 4,093 ​ — Commercial business ​ 57,236 ​ — ​ — ​ — ​ 57,236 ​ — ​ — Consumer ​ 493 ​ 37 ​ — ​ 37 ​ 530 ​ — ​ — Total Loans ​ $ 699,682 ​ $ 524 ​ $ 7,417 ​ $ 7,941 ​ $ 707,623 ​ $ 8,379 ​ $ — ​
Schedule of primary segments of the allowance for loan losses, segmented into the amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment.	The following tables summarize the primary segments of the allowance for loan losses. Activity in the allowance is presented for the three month periods ended December 31, 2021 and 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2021 ​ One- to Multi- ​ ​ Construction ​ ​ Loans to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four-family ​ family ​ Commercial ​ and land ​ Commercial ​ financial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ residential ​ residential ​ real estate ​ development ​ business ​ institutions ​ Leases ​ Consumer ​ Unallocated ​ Total ​ ​ (In Thousands) ALLL balance at September 30, 2021 ​ $ 1,665 ​ $ 1,051 ​ $ 2,220 ​ $ 1,968 ​ $ 799 ​ $ — ​ $ — ​ $ 15 ​ $ 799 ​ $ 8,517 Charge-offs ​ ​ — ​ ​ — ​ ​ (136) ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ (136) Recoveries ​ ​ 1 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1 Provision ​ ​ (10) ​ ​ 2 ​ ​ 216 ​ ​ (320) ​ ​ 126 ​ ​ ​ ​ ​ — ​ ​ 1 ​ ​ (15) ​ ​ — ALLL balance at December 31, 2021 ​ $ 1,656 ​ $ 1,053 ​ $ 2,300 ​ $ 1,648 ​ $ 925 ​ $ — ​ $ — ​ $ 16 ​ $ 784 ​ $ 8,382 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended December 31, 2020 ​ One- to Multi- ​ ​ Construction ​ ​ Loans to ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ four-family ​ family ​ Commercial ​ and land ​ Commercial ​ financial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ residential ​ residential ​ real estate ​ development ​ business ​ institutions ​ Leases ​ Consumer ​ Unallocated ​ Total ​ ​ (In Thousands) ​ ​ ​ ALLL balance at September 30, 2020 ​ $ 1,877 ​ $ 460 ​ $ 1,989 ​ $ 2,888 ​ $ 194 ​ $ 89 ​ $ 3 ​ $ 6 ​ $ 797 ​ $ 8,303 Charge-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Recoveries ​ ​ 1 ​ ​ — ​ ​ — ​ ​ — ​ ​ 14 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 15 Provision ​ ​ 133 ​ ​ (3) ​ ​ (54) ​ ​ (60) ​ ​ 111 ​ ​ (89) ​ ​ — ​ ​ — ​ ​ (38) ​ ​ — ALLL balance at December 31, 2020 ​ $ 2,011 ​ $ 457 ​ $ 1,935 ​ $ 2,828 ​ $ 319 ​ $ — ​ $ 3 ​ $ 6 ​ $ 759 ​ $ 8,318

DEPOSITS (Tables)

DEPOSITS (Tables)	3 Months Ended
	Dec. 31, 2021
DEPOSITS.
Schedule of major classifications of deposits	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ September 30, ​ ​ ​ 2021 ​ 2021 ​ ​ Amount Percent Amount Percent ​ ​ ​ (Dollars in Thousands) ​ Non-interest-bearing checking accounts ​ $ 35,594 4.9 % $ 37,409 5.3 % ​ Interest-bearing checking accounts ​ 107,451 14.9 % 87,752 12.3 % ​ Money market deposit accounts ​ 112,224 15.6 % 111,488 15.7 % ​ Passbook, club and statement savings ​ 230,357 32.0 % 229,989 32.3 % ​ Certificates maturing in six months or less ​ 127,557 17.7 % 143,767 20.2 % ​ Certificates maturing in more than six months ​ 107,501 14.9 % 101,110 14.2 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 720,684 100.0 % $ 711,515 100.0 % ​

ADVANCES FROM FEDERAL HOME LO_2

ADVANCES FROM FEDERAL HOME LOAN BANK - LONG TERM (Tables)	3 Months Ended
	Dec. 31, 2021
ADVANCES FROM FEDERAL HOME LOAN BANK - LONG TERM
Schedule of collateral agreement with the FHLB	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Lomg-term FHLB advances: ​ Maturity range ​ Weighted average ​ Stated interest rate range ​ December 31, ​ September 30, Description from to interest rate from to 2021 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in Thousands) Fixed Rate - Amortizing 1 ‑ Oct ‑ 21 30 ‑ Sep ‑ 22 ​ 2.99 % 2.94 % 3.05 % $ 1,519 ​ $ 2,227 Fixed Rate - Amortizing 1 ‑ Oct ‑ 22 30 ‑ Sep ‑ 23 ​ 2.52 % 1.94 % 3.11 % 3,115 ​ 3,551 Total ​ 2.76 % ​ ​ 4,634 ​ ​ 5,778 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fixed Rate - Advances 1 ‑ Oct ‑ 21 30 ‑ Sep ‑ 22 ​ 2.15 % 1.94 % 2.33 % 40,249 ​ 63,250 Fixed Rate - Advances 1 ‑ Oct ‑ 22 30 ‑ Sep ‑ 23 ​ 2.57 % 2.00 % 3.22 % 94,999 ​ 94,999 Fixed Rate - Advances 1 ‑ Oct ‑ 23 30 ‑ Sep ‑ 24 ​ 2.83 % 2.38 % 3.20 % 67,998 ​ 67,998 Total ​ 2.60 % ​ ​ 203,246 ​ ​ 226,247 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2.62 % ​ Total ​ $ 207,880 ​ $ 232,025

DERIVATIVES (Tables)

DERIVATIVES (Tables)	3 Months Ended
	Dec. 31, 2021
DERIVATIVES
Schedule of interest rate swap agreements and the terms	Below is a summary of the interest rate swap agreements and their terms as of December 31, 2021. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 Hedged ​ Notional ​ Pay Rate ​ Receive ​ Maturity Date ​ Unrealized Item Amount from to Rate from to ​ Gain (Loss) (Dollars in Thousands) State and political subdivisions ​ $ 21,570 ​ 3.06 % 3.07 % 3 Mth Libor ​ 1-Feb-27 ​ 1-May-28 ​ $ (1,983) Commercial loans ​ 23,656 4.10 % 5.74 % 1 Mth Libor +225 to 276 bp ​ 13-Jun-25 ​ 1-Aug-26 ​ — 30 day wholesale funding ​ ​ 90,000 ​ 1.36 % 2.70 % 1 Mth Libor ​ 15-Feb-24 ​ 12-Jun-26 ​ ​ (2,181) 90 day wholesale funding ​ ​ 135,000 ​ 2.51 % 2.78 % 3 Mth Libor ​ 11-Jan-24 ​ 27-Mar-24 ​ ​ (4,867) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ $ (9,031) ​ Below is a summary of the interest rate swap agreements and their terms as of September 30, 2021. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 Hedged ​ Notional ​ Pay Rate ​ Receive ​ Maturity Date ​ Unrealized Item Amount from to Rate from to Gain (Loss) (Dollars in T housands) State and political subdivisions ​ $ 21,570 ​ 3.06 % 3.07 % 3 Mth Libor ​ 1-Feb-27 ​ 1-May-28 ​ $ (2,365) Commercial loans ​ 23,656 4.10 % 5.74 % 1 Mth Libor +225 to 276 bp ​ 13-Jun-25 ​ 1-Aug-26 ​ — 30 day wholesale funding ​ ​ 90,000 ​ 1.36 % 2.70 % 1 Mth Libor ​ 15-Feb-24 ​ 12-Jun-26 ​ ​ (3,495) 90 day wholesale funding ​ ​ 135,000 ​ 2.51 % 2.78 % 3 Mth Libor ​ 11-Jan-24 ​ 27-Mar-24 ​ ​ (6,974) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ $ (12,834)

INCOME TAXES (Tables)

INCOME TAXES (Tables)	3 Months Ended
	Dec. 31, 2021
INCOME TAXES
Schedule of deferred income taxes	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ September 30, ​ ​ 2021 2021 ​ ​ ​ (Dollars in Thousands) ​ Deferred tax assets: ​ ​ ​ Allowance for loan losses ​ $ 1,697 ​ $ 1,716 ​ Nonaccrual interest ​ 408 ​ 395 ​ Accrued vacation ​ 14 ​ 14 ​ Capital loss carryforward ​ 4 ​ 4 ​ Other real estate owned ​ 8 ​ — ​ Split dollar life insurance ​ 9 ​ 9 ​ Post-retirement benefits ​ 66 ​ 67 ​ Unrealized losses on interest rate swaps ​ ​ 1,481 ​ ​ 2,199 ​ Deferred compensation ​ 775 ​ 767 ​ Goodwill ​ 44 ​ 47 ​ Lease liability ​ ​ 266 ​ ​ 256 ​ Other ​ 25 ​ 79 ​ Employee benefit plans ​ 198 ​ 242 ​ Total deferred tax assets ​ 4,995 ​ 5,795 ​ Valuation allowance ​ (4) ​ (4) ​ Total deferred tax assets, net of valuation allowance ​ 4,991 ​ 5,791 ​ ​ ​ ​ ​ Deferred tax liabilities: ​ ​ ​ Property ​ 170 ​ 127 ​ Right of Use ​ ​ 242 ​ ​ 233 ​ Realized gain on equity securities ​ ​ 3 ​ ​ 3 ​ Unrealized gains on available for sale securities ​ ​ 1,370 ​ ​ 1,621 ​ Purchase accounting adjustments ​ 379 ​ 394 ​ Deferred loan fees ​ 436 ​ 392 ​ Total deferred tax liabilities ​ 2,600 ​ 2,770 ​ Net deferred tax assets ​ $ 2,391 ​ $ 3,021 ​

STOCK COMPENSATION PLANS (Table

STOCK COMPENSATION PLANS (Tables)	3 Months Ended
	Dec. 31, 2021
STOCK COMPENSATION PLANS
Schedule of summary of the non-vested stock award activity	​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ ​ December 31, 2021 ​ ​ Number of ​ Weighted Average ​ Shares Grant Date Fair Value Non-vested stock awards at October 1, 2021 23,056 ​ $ 17.78 Granted — ​ — Forfeited — ​ — Vested — ​ — Non-vested stock awards at December 31, 2021 23,056 ​ $ 17.78 ​
Schedule of summary of the status of the company' stock options under the stock option plan	​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ ​ December 31, 2021 ​ Number of Weighted Average ​ ​ Shares ​ Exercise Price Options outstanding at October 1, 2021 521,258 ​ $ 14.23 Granted — ​ — Exercised — ​ — Forfeited — ​ — Outstanding at December 31, 2021 521,258 ​ $ 14.23 Exercisable at December 31, 2021 418,471 ​ $ 13.74 ​

FAIR VALUE MEASUREMENT (Tables)

FAIR VALUE MEASUREMENT (Tables)	3 Months Ended
	Dec. 31, 2021
FAIR VALUE MEASUREMENT
Schedule of assets measured at fair value on recurring basis	Those assets and liabilities as of December 31, 2021 which are measured at fair value on a recurring basis are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Category Used for Fair Value Measurement ​ Level 1 Level 2 Level 3 Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ ​ ​ Securities available for sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government and agency obligations ​ $ — ​ $ 3,022 ​ $ — ​ $ 3,022 State and political subdivisions ​ — ​ 76,136 ​ — ​ 76,136 Mortgage-backed securities - U.S. Government agencies ​ — ​ 116,247 ​ — ​ 116,247 Corporate bonds ​ — ​ 102,119 ​ — ​ 102,119 Equity securities ​ 22 ​ — ​ — ​ 22 Loans held for sale ​ 406 ​ — ​ — ​ 406 Total ​ $ 428 ​ $ 297,524 ​ $ — ​ $ 297,952 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap contracts ​ $ — ​ $ 9,031 ​ $ — ​ $ 9,031 Total ​ $ — ​ $ 9,031 ​ $ — ​ $ 9,031 ​ Those assets and liabilities as of September 30, 2021 which are measured at fair value on a recurring basis are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Category Used for Fair Value Measurement ​ Level 1 Level 2 Level 3 Total ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ ​ ​ Securities available for sale: ​ ​ ​ ​ ​ ​ ​ ​ U.S. Government and agency obligations ​ $ — ​ $ 3,194 ​ $ — ​ $ 3,194 State and political subdivisions ​ ​ — ​ 72,259 ​ — ​ 72,259 Mortgage-backed securities - U.S. Government agencies ​ — ​ 135,353 ​ — ​ 135,353 Corporate bonds ​ — ​ 95,141 ​ — ​ 95,141 Equity securities ​ 22 ​ — ​ — ​ 22 Total ​ $ 22 ​ $ 305,947 ​ $ — ​ $ 305,969 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap contracts ​ $ — ​ $ 12,834 ​ $ — ​ $ 12,834 Total ​ $ — ​ $ 12,834 ​ $ — ​ $ 12,834 ​
Schedule of summary of non-recurring fair value measurements	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2021 ​ ​ (Dollars in Thousands) ​ Level 1 Level 2 Level 3 Total Other real estate owned ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 Total ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At September 30, 2021 ​ ​ (Dollars in Thousands) ​ Level 1 Level 2 Level 3 Total Other real estate owned ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109 Total ​ $ — ​ $ — ​ $ 4,109 ​ $ 4,109
Schedule of nonrecurring fair value measurements categorized within level 3 of the fair value hierarchy	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2021 ​ ​ ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ Valuation ​ ​ ​ Range/ ​ Fair Value Technique Unobservable Input Weighted Ave. Other real estate owned ​ $ 4,109 Property appraisals (1) (3) Management discount for selling costs, property type and market volatility (2) 2% discount ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At September 30, 2021 ​ ​ ​ ​ (Dollars in Thousands) ​ ​ ​ ​ ​ ​ ​ Valuation ​ ​ ​ Range/ ​ Fair Value Technique Unobservable Input Weighted Ave. Other real estate owned ​ $ 4,109 Property appraisals (1) (3) Management discount for selling costs, property type and market volatility (2) 2% discount ​ (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally includes 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 and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal. (3) Includes qualitative adjustments by management and estimated liquidation expenses.
Schedule of the estimated fair value amounts	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at ​ ​ Carrying ​ Fair ​ December 31, 2021 ​ Amount Value (Level 1) (Level 2) (Level 3) ​ ​ (Dollars in Thousands) ​ ​ ​ Assets: ​ ​ ​ ​ ​ Investment and mortgage-backed securities held to maturity ​ $ 17,834 ​ $ 18,777 ​ $ — ​ $ 18,777 ​ $ — Loans receivable, net ​ ​ 584,758 ​ ​ 582,718 ​ ​ — ​ ​ — ​ ​ 582,718 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Certificates of deposit ​ ​ 235,058 ​ ​ 241,342 ​ ​ — ​ ​ — ​ ​ 241,342 Advances from FHLB -long-term ​ ​ 207,880 ​ ​ 213,008 ​ ​ — ​ ​ — ​ ​ 213,008 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at ​ ​ Carrying ​ Fair ​ September 30, 2021 ​ Amount Value (Level 1) (Level 2) (Level 3) ​ ​ (Dollars in Thousands) ​ ​ ​ Assets: ​ ​ ​ ​ ​ Investment and mortgage-backed securities held to maturity ​ $ 20,074 ​ $ 21,161 ​ $ — ​ $ 21,161 ​ $ — Loans receivable, net ​ ​ 618,206 ​ ​ 620,017 ​ ​ ​ ​ ​ ​ ​ ​ 620,017 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Certificates of deposit ​ ​ 244,877 ​ ​ 252,510 ​ ​ — ​ ​ — ​ ​ 252,510 Advances from FHLB -long-term ​ ​ 232,025 ​ ​ 239,301 ​ ​ — ​ ​ — ​ ​ 239,301

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	3 Months Ended
	Dec. 31, 2021
GOODWILL AND OTHER INTANGIBLE ASSETS
Schedule of goodwill and intangible assets are related to the acquisition of Polonia Bancorp	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance ​ ​ ​ ​ ​ ​ ​ Balance ​ ​ ​ ​ October 1, ​ Additions/ ​ ​ ​ ​ December 31, ​ Amortization ​ 2021 Adjustments Amortization 2021 Period ​ ​ ​ ​ ​ ​ ​ ​ (Dollars in Thousands) ​ ​ Goodwill ​ $ 6,102 ​ $ — ​ $ — ​ $ 6,102 Core deposit intangible ​ 246 ​ — ​ (22) ​ 224 10 years ​ ​ $ 6,348 ​ $ — ​ $ (22) ​ $ 6,326
Schedule of future fiscal periods amortization expense for core deposit intangible	​ ​ ​ ​ ​ (in Thousands) ​ ​ ​ ​ ​ ​ 2022 ​ $ 56 2023 ​ 64 2024 ​ 49 2025 ​ 34 2026 ​ 18 Thereafter ​ 3 ​ ​ $ 224

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended
	Dec. 31, 2021item
Significant Accounting Policies [Line Items]
Number of full service branch offices	9
Number of banking offices	10
Philadelphia (Philadelphia County)
Significant Accounting Policies [Line Items]
Number of full service branch offices	8
PENNSYLVANIA
Significant Accounting Policies [Line Items]
Number of full service branch offices	1
Huntingdon Valley, Montgomery County
Significant Accounting Policies [Line Items]
Number of full service branch offices	1

EARNINGS PER SHARE - Calculated

EARNINGS PER SHARE - Calculated basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Earnings per share - basic
Net income	$ 1,838	$ 1,837
Weighted average common shares outstanding - basic	7,769,095	8,104,713
Effect of CSEs - basic	0	0
Adjusted weighted average common shares used in earnings per share computation - basic	7,769,095	8,104,713
Earnings per share - basic (in dollars per share)	$ 0.24	$ 0.23
Earnings per share - diluted
Net income	$ 1,838	$ 1,837
Weighted average shares outstanding - diluted	7,765,095	8,104,713
Effect of CSEs - diluted	44,253	21,077
Adjusted weighted average shares used in earnings per share computation - diluted	7,809,348	8,125,790
Earnings per share - diluted (in dollars per share)	$ 0.24	$ 0.23

EARNINGS PER SHARE - Additional

EARNINGS PER SHARE - Additional Information (Details) - shares	Dec. 31, 2021	Dec. 31, 2020
EARNINGS PER SHARE
Adjusted weighted average shares of common stock used in diluted earnings per share computation	299,728	282,728
Adjusted weighted average shares of common stock having exercise prices less than the current market value and are considered anti-dilutive	221,530	288,533

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in accumulated other comprehensive (loss) income by component net of tax (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ (2,175)
Total other comprehensive (loss) gain	1,758	$ 2,736
Ending Balance	(417)
Total accumulated other comprehensive income (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(2,175)	(2,943)
Other comprehensive (loss) income before reclassification	1,758	2,736
Total other comprehensive (loss) gain	(417)	(207)
Ending Balance	(417)	(207)
Unrealized gain (loss) on AFS securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	6,098	10,585
Other comprehensive (loss) income before reclassification	(945)	1,636
Total other comprehensive (loss) gain	5,153	12,221
Ending Balance	5,153	12,221
Unrealized gain (loss) on interest rate swaps
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(8,273)	(13,528)
Other comprehensive (loss) income before reclassification	2,703	1,100
Total other comprehensive (loss) gain	(5,570)	(12,428)
Ending Balance	$ (5,570)	$ (12,428)

INVESTMENT AND MORTGAGE-BACKE_3

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Amortized cost and fair value of investment and mortgage-backed securities, with gross unrealized gains and losses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Securities Available for Sale:
Amortized Cost	$ 291,000
Gross Unrealized Gains	7,892
Gross Unrealized Losses	(1,368)
Fair Value	297,524	$ 305,947
U.S. Government and agency obligations
Securities Available for Sale:
Amortized Cost	2,951	3,117
Gross Unrealized Gains	71	77
Gross Unrealized Losses	0
Fair Value	3,022	3,194
State and political subdivisions
Securities Available for Sale:
Amortized Cost	73,562	70,625
Gross Unrealized Gains	2,592	1,793
Gross Unrealized Losses	(18)	(159)
Fair Value	76,136	72,259
Mortgage-Backed Securities
Securities Available for Sale:
Amortized Cost	114,351	131,842
Gross Unrealized Gains	2,732	4,267
Gross Unrealized Losses	(836)	(756)
Fair Value	116,247	135,353
Corporate debt securities
Securities Available for Sale:
Amortized Cost	100,136	92,645
Gross Unrealized Gains	2,497	2,683
Gross Unrealized Losses	(514)	(187)
Fair Value	$ 102,119	95,141
Total debt securities available for sale
Securities Available for Sale:
Amortized Cost		298,229
Gross Unrealized Gains		8,820
Gross Unrealized Losses		(1,102)
Fair Value		$ 305,947

INVESTMENT AND MORTGAGE-BACKE_4

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Amortized cost and fair value of investment and mortgage-backed securities, with gross unrealized gains and losses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Securities Held to Maturity:
Amortized Cost	$ 17,834	$ 20,074
Gross Unrealized Gains	972	1,111
Gross unrealized losses	(29)	(24)
Fair value	18,777	21,161
U.S. Government and agency obligations
Securities Held to Maturity:
Amortized Cost	1,000	1,000
Gross Unrealized Gains	150	173
Gross unrealized losses	0
Fair value	1,150	1,173
Mortgage-Backed Securities
Securities Held to Maturity:
Amortized Cost	3,895	4,091
Gross Unrealized Gains	163	211
Gross unrealized losses	(29)	(24)
Fair value	4,029	4,278
State and political subdivisions
Securities Held to Maturity:
Amortized Cost	12,939	14,983
Gross Unrealized Gains	659	727
Gross unrealized losses	0
Fair value	$ 13,598	$ 15,710

INVESTMENT AND MORTGAGE-BACKE_5

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Gross unrealized losses and related fair values of investment securities, aggregated by investment category and length of time (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Securities Available for Sale:
Less than 12 months - Gross Unrealized Losses	$ (660)	$ (767)
Less than 12 months - Fair value	34,795	57,692
More than 12 months - Gross Unrealized Losses	(708)	(335)
More than 12 months - Fair value	18,292	12,266
Total - Gross Unrealized Losses	(1,368)	(1,102)
Total - Fair Value	53,087	69,958
State and political subdivisions
Securities Available for Sale:
Less than 12 months - Gross Unrealized Losses	(18)	(93)
Less than 12 months - Fair value	2,100	14,383
More than 12 months - Gross Unrealized Losses		(66)
More than 12 months - Fair value		4,417
Total - Gross Unrealized Losses	(18)	(159)
Total - Fair Value	2,100	18,800
Mortgage-Backed Securities
Securities Available for Sale:
Less than 12 months - Gross Unrealized Losses	(128)	(487)
Less than 12 months - Fair value	7,256	18,493
More than 12 months - Gross Unrealized Losses	(708)	(269)
More than 12 months - Fair value	18,292	7,849
Total - Gross Unrealized Losses	(836)	(756)
Total - Fair Value	25,548	26,342
Corporate debt securities
Securities Available for Sale:
Less than 12 months - Gross Unrealized Losses	(514)	(187)
Less than 12 months - Fair value	25,439	24,816
Total - Gross Unrealized Losses	(514)	(187)
Total - Fair Value	$ 25,439	$ 24,816

INVESTMENT AND MORTGAGE-BACKE_6

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Gross unrealized losses and related fair values of investment securities, aggregated by investment category and length of time (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Securities Held to Maturity:
Less than 12 months - Gross Unrealized Losses	$ (29)	$ (24)
Less than 12 Months, Fair Value	1,257	1,269
Total - Gross Unrealized Losses	(29)	(24)
Total - Fair Value	1,257	$ 1,269
Mortgage-Backed Securities
Securities Held to Maturity:
Less than 12 months - Gross Unrealized Losses	(29)
Less than 12 Months, Fair Value	1,257
Total - Gross Unrealized Losses	(29)
Total - Fair Value	$ 1,257

INVESTMENT AND MORTGAGE-BACKE_7

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Gross unrealized losses and related fair values of investment securities, aggregated by investment category and length of time (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
INVESTMENT AND MORTGAGE-BACKED SECURITIES
Less than 12 months - Gross Unrealized Losses	$ (689)	$ (791)
Less than 12 Months - Fair Value	36,052	58,961
More than 12 months - Gross Unrealized Losses	(708)	(335)
More than 12 Months - Fair Value	18,292	12,266
Total - Gross Unrealized Losses	(1,397)	(1,126)
Total - Fair Value	$ 54,344	$ 71,227

INVESTMENT AND MORTGAGE-BACKE_8

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Amortized cost and fair value of debt securities, by contractual maturity (Details) $ in Thousands	Dec. 31, 2021USD ($)
Available for Sale, Amortized Cost
Due after one through five years	$ 45,130
Due after five through ten years	58,152
Due after ten years	73,367
Total	176,649
Available for Sale, Fair Value
Due after one through five years	46,181
Due after five through ten years	59,184
Due after ten years	75,912
Total	$ 181,277

INVESTMENT AND MORTGAGE-BACKE_9

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Amortized cost and fair value of debt securities, by contractual maturity (Details) $ in Thousands	Dec. 31, 2021USD ($)
Held to Maturity - Amortized Cost
Due within one year	$ 1,035
Due after one through five years	5,421
Due after five through ten years	3,448
Due after ten years	4,035
Total	13,939
Held to Maturity - Fair Value
Due within one year	1,043
Due after one through five years	5,889
Due after five through ten years	3,515
Due after ten years	4,301
Total	$ 14,748

INVESTMENT AND MORTGAGE-BACK_10

INVESTMENT AND MORTGAGE-BACKED SECURITIES - Additional Information (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2021USD ($)security	Dec. 31, 2020USD ($)security	Sep. 30, 2021USD ($)
Marketable Securities [Line Items]
Securities with a fair value in safekeeping account at the FHLB	$ 93,900
Aggregate Amount	660		$ 767
Gain (loss) on equity securities	0	$ 11
Required to hold securities for its borrowings	16,700
Excess securities not restricted and could be sold or transferred	77,200
Gross unrealized loss	1,368		1,102
Credit losses on investment securities	$ 0	$ 0
Number of AFS securities sold | security	0	0
Mortgage-Backed Securities
Marketable Securities [Line Items]
Number of investment securities in debt obligations in the category of loss position less than 12 months held by company | security	8
Number of investment securities in debt obligations in the category of loss position more than 12 months held by company | security	6
Aggregate Amount	$ 128		487
Gross unrealized loss	$ 836		756
Corporate debt securities
Marketable Securities [Line Items]
Number of investment securities in debt obligations in the category of loss position less than 12 months held by company | security	6
Number of investment securities in debt obligations in the category of loss position more than 12 months held by company | security	0
Aggregate Amount	$ 514		187
Gross unrealized loss	$ 514		187
State and political subdivisions
Marketable Securities [Line Items]
Number of investment securities in debt obligations in the category of loss position less than 12 months held by company | security	1
Number of investment securities in debt obligations in the category of loss position more than 12 months held by company | security	0
Aggregate Amount	$ 18		93
Gross unrealized loss	$ 18		$ 159

LOANS RECEIVABLE (Details)

LOANS RECEIVABLE (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 687,644	$ 707,623
Undisbursed portion of loans-in-process	(94,524)	(80,620)
Deferred loan fees	20	(280)
Allowance for loan losses	(8,382)	(8,517)	$ (8,318)	$ (8,303)
Net loans	584,758	618,206
One-to-four family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	190,269	202,330
Allowance for loan losses	(1,656)	(1,665)	(2,011)	(1,877)
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	73,069	76,122
Allowance for loan losses	(1,053)	(1,051)	(457)	(460)
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	164,508	165,992
Allowance for loan losses	(2,300)	(2,220)	(1,935)	(1,989)
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	195,751	205,413
Allowance for loan losses	(1,648)	(1,968)	(2,828)	(2,888)
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	63,531	57,236
Allowance for loan losses	(925)	(799)	(319)	(194)
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	516	530
Allowance for loan losses	$ (16)	$ (15)	$ (6)	$ (6)

LOANS RECEIVABLE - Summary of l

LOANS RECEIVABLE - Summary of loans individually and collectively evaluated for impairment by loan segment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Loans:
Individually evaluated for impairment	$ 8,058	$ 8,379
Collectively evaluated for impairment	679,586	699,244
Total loans	687,644	707,623
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	8,382	8,517
Total ending allowance balance	8,382	8,517	$ 8,318	$ 8,303
One-to-four family residential
Loans:
Individually evaluated for impairment	3,185	3,006
Collectively evaluated for impairment	187,084	199,324
Total loans	190,269	202,330
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,656	1,665
Total ending allowance balance	1,656	1,665	2,011	1,877
Multi-family residential
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	73,069	76,122
Total loans	73,069	76,122
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,053	1,051
Total ending allowance balance	1,053	1,051	457	460
Commercial real estate
Loans:
Individually evaluated for impairment	1,280	1,280
Collectively evaluated for impairment	163,228	164,712
Total loans	164,508	165,992
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,300	2,220
Total ending allowance balance	2,300	2,220	1,935	1,989
Construction and land development
Loans:
Individually evaluated for impairment	3,593	4,093
Collectively evaluated for impairment	192,158	201,320
Total loans	195,751	205,413
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,648	1,968
Total ending allowance balance	1,648	1,968	2,828	2,888
Commercial business
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	63,531	57,236
Total loans	63,531	57,236
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	925	799
Total ending allowance balance	925	799	319	194
Consumer
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	516	530
Total loans	516	530
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	16	15
Total ending allowance balance	16	15	6	6
Unallocated
Loans:
Individually evaluated for impairment		0
Collectively evaluated for impairment	784	799
Total ending allowance balance	$ 784	$ 799	$ 759	$ 797

LOANS RECEIVABLE - Impaired loa

LOANS RECEIVABLE - Impaired loans by class, segregated by those for which specific allowance was required and those for which specific allowance was not necessary (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable, Impaired [Line Items]
Impaired Loans with Specific Allowance - Recorded Investment	$ 0	$ 0
Impaired Loans with Specific Allowance - Related Allowance	0	0
Impaired Loans with No Specific Allowance - Recorded Investment	8,058	8,379
Total Impaired Loans - Recorded Investment	8,058	8,379
Total impaired loans - Unpaid Principal Balance	8,780	9,101
One-to-four family residential
Financing Receivable, Impaired [Line Items]
Impaired Loans with Specific Allowance - Recorded Investment	0	0
Impaired Loans with Specific Allowance - Related Allowance	0	0
Impaired Loans with No Specific Allowance - Recorded Investment	3,185	3,006
Total Impaired Loans - Recorded Investment	3,185	3,006
Total impaired loans - Unpaid Principal Balance	3,483	3,304
Commercial real estate
Financing Receivable, Impaired [Line Items]
Impaired Loans with Specific Allowance - Recorded Investment	0	0
Impaired Loans with Specific Allowance - Related Allowance	0	0
Impaired Loans with No Specific Allowance - Recorded Investment	1,280	1,280
Total Impaired Loans - Recorded Investment	1,280	1,280
Total impaired loans - Unpaid Principal Balance	1,457	1,457
Construction and land development
Financing Receivable, Impaired [Line Items]
Impaired Loans with Specific Allowance - Recorded Investment	0	0
Impaired Loans with Specific Allowance - Related Allowance	0	0
Impaired Loans with No Specific Allowance - Recorded Investment	3,593	4,093
Total Impaired Loans - Recorded Investment	3,593	4,093
Total impaired loans - Unpaid Principal Balance	$ 3,840	$ 4,340

LOANS RECEIVABLE - Average reco

LOANS RECEIVABLE - Average recorded investment in impaired loans and related interest income recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 8,219	$ 12,939
Income Recognized on Accrual Basis	4	5
Income Recognized on Cash Basis	5	0
One-to-four family residential
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,096	3,091
Income Recognized on Accrual Basis	4	5
Income Recognized on Cash Basis	5	0
Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,280	1,373
Income Recognized on Accrual Basis	0	0
Income Recognized on Cash Basis	0	0
Construction and land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,843	8,475
Income Recognized on Accrual Basis	0	0
Income Recognized on Cash Basis	$ 0	$ 0

LOANS RECEIVABLE - Summary of c

LOANS RECEIVABLE - Summary of classes of loan portfolio in which formal risk weighting system is utilized (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 687,644	$ 707,623
One-to-four family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	190,269	202,330
Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	73,069	76,122
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	164,508	165,992
Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	195,751	205,413
Commercial business
Financing Receivable, Recorded Investment [Line Items]
Total Loans	63,531	57,236
Risk Rating System
Financing Receivable, Recorded Investment [Line Items]
Total Loans	687,128	707,093
Risk Rating System | One-to-four family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	190,269	202,330
Risk Rating System | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	73,069	76,122
Risk Rating System | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	164,508	165,992
Risk Rating System | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	195,751	205,413
Risk Rating System | Commercial business
Financing Receivable, Recorded Investment [Line Items]
Total Loans	63,531	57,236
Risk Rating System | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans	675,499	690,630
Risk Rating System | Pass | One-to-four family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	185,552	197,920
Risk Rating System | Pass | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	73,069	71,497
Risk Rating System | Pass | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	161,189	162,657
Risk Rating System | Pass | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	192,158	201,320
Risk Rating System | Pass | Commercial business
Financing Receivable, Recorded Investment [Line Items]
Total Loans	63,531	57,236
Risk Rating System | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,571	8,084
Risk Rating System | Special Mention | One-to-four family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,532	1,404
Risk Rating System | Special Mention | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans		4,625
Risk Rating System | Special Mention | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,039	2,055
Risk Rating System | Special Mention | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans		0
Risk Rating System | Special Mention | Commercial business
Financing Receivable, Recorded Investment [Line Items]
Total Loans		0
Risk Rating System | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8,058	8,379
Risk Rating System | Substandard | One-to-four family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,185	3,006
Risk Rating System | Substandard | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans		0
Risk Rating System | Substandard | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,280	1,280
Risk Rating System | Substandard | Construction and land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 3,593	4,093
Risk Rating System | Substandard | Commercial business
Financing Receivable, Recorded Investment [Line Items]
Total Loans		$ 0

LOANS RECEIVABLE - Loans in whi

LOANS RECEIVABLE - Loans in which formal risk rating system is not utilized, but loans are segregated between performing and non-performing based primarily on delinquency status (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 687,644	$ 707,623
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	516	530
Non Risk Rating System
Financing Receivable, Recorded Investment [Line Items]
Total Loans	516	530
Non Risk Rating System | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	516	530
Non Risk Rating System | Performing
Financing Receivable, Recorded Investment [Line Items]
Total Loans	516	530
Non Risk Rating System | Performing | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	516	$ 530
Non Risk Rating System | Non-performing assets
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0
Non Risk Rating System | Non-performing assets | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 0

LOANS RECEIVABLE - Loan categor

LOANS RECEIVABLE - Loan categories of loan portfolio summarized by aging categories of performing loans and nonaccrual loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 678,649	$ 699,682
Past Due	8,995	7,941
Total Loans	687,644	707,623
Non- Accrual	8,058	8,379
90 Days+ Past Due and Accruing	0	0
30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	2,295	524
Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	6,700	7,417
One-to-four family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	186,910	199,799
Past Due	3,359	2,531
Total Loans	190,269	202,330
Non- Accrual	3,185	3,006
90 Days+ Past Due and Accruing	0	0
One-to-four family residential | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,532	487
One-to-four family residential | Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,827	2,044
Multi-family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	73,069	76,122
Past Due	0	0
Total Loans	73,069	76,122
Non- Accrual	0	0
90 Days+ Past Due and Accruing	0	0
Multi-family residential | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Multi-family residential | Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	162,579	164,712
Past Due	1,929	1,280
Total Loans	164,508	165,992
Non- Accrual	1,280	1,280
90 Days+ Past Due and Accruing	0	0
Commercial real estate | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	649	0
Commercial real estate | Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,280	1,280
Construction and land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	192,158	201,320
Past Due	3,593	4,093
Total Loans	195,751	205,413
Non- Accrual	3,593	4,093
90 Days+ Past Due and Accruing	0	0
Construction and land development | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Construction and land development | Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	3,593	4,093
Commercial business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	63,465	57,236
Past Due	66	0
Total Loans	63,531	57,236
Non- Accrual	0	0
90 Days+ Past Due and Accruing	0	0
Commercial business | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	66	0
Commercial business | Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	468	493
Past Due	48	37
Total Loans	516	530
Non- Accrual	0	0
90 Days+ Past Due and Accruing	0	0
Consumer | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	48	37
Consumer | Over 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 0	$ 0

LOANS RECEIVABLE - Activity in

LOANS RECEIVABLE - Activity in allowance (Details) - USD ($)	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	$ 8,517,000	$ 8,303,000
Charge-offs	(136,000)	0
Recoveries	1,000	15,000
Provision	0	0
ALLL balance	8,382,000	8,318,000
One-to-four family residential
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	1,665,000	1,877,000
Recoveries	1,000	1,000
Provision	(10,000)	133,000
ALLL balance	1,656,000	2,011,000
Multi-family residential
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	1,051,000	460,000
Charge-offs	0	0
Recoveries	0	0
Provision	2,000	(3,000)
ALLL balance	1,053,000	457,000
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	2,220,000	1,989,000
Charge-offs	(136,000)	0
Recoveries	0	0
Provision	216,000	(54,000)
ALLL balance	2,300,000	1,935,000
Construction and land development
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	1,968,000	2,888,000
Charge-offs	0	0
Recoveries	0	0
Provision	(320,000)	(60,000)
ALLL balance	1,648,000	2,828,000
Commercial business
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	799,000	194,000
Charge-offs	0	0
Recoveries	0	14,000
Provision	126,000	111,000
ALLL balance	925,000	319,000
Loan to financial institutions
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	0	89,000
Charge-offs	0	0
Recoveries	0	0
Provision		(89,000)
ALLL balance	0	0
Leases
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	0	3,000
Charge-offs	0	0
Recoveries	0	0
Provision	0	0
ALLL balance	0	3,000
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	15,000	6,000
Charge-offs	0	0
Recoveries	0	0
Provision	1,000	0
ALLL balance	16,000	6,000
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
ALLL balance	799,000	797,000
Charge-offs	0	0
Recoveries	0	0
Provision	(15,000)	(38,000)
ALLL balance	$ 784,000	$ 759,000

LOANS RECEIVABLE - Additional I

LOANS RECEIVABLE - Additional Information (Details)	3 Months Ended
	Dec. 31, 2021USD ($)loan	Dec. 31, 2020USD ($)loan	Sep. 30, 2021USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan losses	$ 0	$ 0
Number of loans restructured | loan	1	0
Number of loans default | loan	0	0
Number of loans classified as troubled debt restructuring | loan	3
Amount of loans classified as troubled debt restructuring	$ 1,600,000
Number of non-accrual loans | loan	3
Loans receivable, net	$ 584,758,000		$ 618,206,000
Number of loans charge off | loan	1
Charge-offs	$ 136,000	$ 0
Recoveries	1,000	15,000
Carrying amount	687,644,000		707,623,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan losses	216,000	(54,000)
Charge-offs	136,000	0
Recoveries	0	$ 0
Carrying amount	$ 164,508,000		$ 165,992,000
Single family residential investment properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans classified as troubled debt restructuring | loan	2
Amount of loans classified as troubled debt restructuring	$ 898,000
Non-performing assets | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans classified as troubled debt restructuring	705,000
Carrying amount	5,500,000
Performing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans classified as troubled debt restructuring	$ 516,000

DEPOSITS (Details)

DEPOSITS (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Amount
Non interest-bearing checking accounts	$ 35,594	$ 37,409
Interest-bearing checking accounts	107,451	87,752
Money market deposit accounts	112,224	111,488
Passbook, club and statement savings	230,357	229,989
Certificates maturing in six months or less	127,557	143,767
Certificates maturing in more than six months	107,501	101,110
Total deposits	$ 720,684	$ 711,515
Percent
Non interest-bearing checking accounts	4.90%	5.30%
Interest-bearing checking accounts	14.90%	12.30%
Money market deposit accounts	15.60%	15.70%
Passbook, club and statement savings	32.00%	32.30%
Certificates maturing in six months or less	17.70%	20.20%
Certificates maturing in more than six months	14.90%	14.20%
Total	100.00%	100.00%

DEPOSITS - Additional Informati

DEPOSITS - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021
DEPOSITS.
Certificates of $250,000 and over	$ 94.9	$ 95.3

ADVANCES FROM FEDERAL HOME LO_3

ADVANCES FROM FEDERAL HOME LOAN BANK - LONG TERM (Details) - USD ($) $ in Thousands	15 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	2.62%
Amount	$ 207,880	$ 232,025
Fixed Rate - Amortizing
Federal Home Loan Bank, Advances [Line Items]
Amount	$ 4,634	5,778
Weighted average interest rate	2.76%
Fixed Rate - Advances
Federal Home Loan Bank, Advances [Line Items]
Amount	$ 203,246	226,247
Weighted average interest rate	2.60%
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 21 to 30 Sep 22
Federal Home Loan Bank, Advances [Line Items]
Date of maturity from	Oct. 1, 2021
Date of maturity to	Sep. 30, 2022
Amount	$ 1,519	2,227
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 21 to 30 Sep 22 | Minimum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	2.94%
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 21 to 30 Sep 22 | Maximum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	3.05%
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 21 to 30 Sep 22 | Weighted average
Federal Home Loan Bank, Advances [Line Items]
Weighted average interest rate	2.99%
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 22 to 30 Sep 23
Federal Home Loan Bank, Advances [Line Items]
Date of maturity from	Oct. 1, 2022
Date of maturity to	Sep. 30, 2023
Amount	$ 3,115	3,551
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 22 to 30 Sep 23 | Minimum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	1.94%
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 22 to 30 Sep 23 | Maximum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	3.11%
Long-term | Fixed Rate Amortizing Maturity from 1 Oct 22 to 30 Sep 23 | Weighted average
Federal Home Loan Bank, Advances [Line Items]
Weighted average interest rate	2.52%
Long-term | Fixed Rate Advances Maturity from 1 Oct 21 to 30 Sep 22
Federal Home Loan Bank, Advances [Line Items]
Date of maturity from	Oct. 1, 2021
Date of maturity to	Sep. 30, 2022
Amount	$ 40,249	63,250
Long-term | Fixed Rate Advances Maturity from 1 Oct 21 to 30 Sep 22 | Minimum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	1.94%
Long-term | Fixed Rate Advances Maturity from 1 Oct 21 to 30 Sep 22 | Maximum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	2.33%
Long-term | Fixed Rate Advances Maturity from 1 Oct 21 to 30 Sep 22 | Weighted average
Federal Home Loan Bank, Advances [Line Items]
Weighted average interest rate	2.15%
Long-term | Fixed Rate Advances Maturity from 1 Oct 22 to 30 Sep 23
Federal Home Loan Bank, Advances [Line Items]
Date of maturity from	Oct. 1, 2022
Date of maturity to	Sep. 30, 2023
Amount	$ 94,999	94,999
Long-term | Fixed Rate Advances Maturity from 1 Oct 22 to 30 Sep 23 | Minimum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	2.00%
Long-term | Fixed Rate Advances Maturity from 1 Oct 22 to 30 Sep 23 | Maximum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	3.22%
Long-term | Fixed Rate Advances Maturity from 1 Oct 22 to 30 Sep 23 | Weighted average
Federal Home Loan Bank, Advances [Line Items]
Weighted average interest rate	2.57%
Long-term | Fixed Rate Advances Maturity from 1 Oct 23 to 30 Sep 24
Federal Home Loan Bank, Advances [Line Items]
Date of maturity from	Oct. 1, 2023
Date of maturity to	Sep. 30, 2024
Amount	$ 67,998	$ 67,998
Long-term | Fixed Rate Advances Maturity from 1 Oct 23 to 30 Sep 24 | Minimum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	2.38%
Long-term | Fixed Rate Advances Maturity from 1 Oct 23 to 30 Sep 24 | Maximum
Federal Home Loan Bank, Advances [Line Items]
Stated interest rate range	3.20%
Long-term | Fixed Rate Advances Maturity from 1 Oct 23 to 30 Sep 24 | Weighted average
Federal Home Loan Bank, Advances [Line Items]
Weighted average interest rate	2.83%

DERIVATIVES (Details)

DERIVATIVES (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
Derivative [Line Items]
Unrealized Gain (Loss)	$ (9,031)	$ (12,834)
Interest rate swap contract maturing on 1 May 2028
Derivative [Line Items]
Hedge Item	State and political subdivisions	State and political subdivisions
Notional Amount	$ 21,570	$ 21,570
Receive Rate	3 Mth Libor	3 Mth Libor
Unrealized Gain (Loss)	$ (1,983)	$ (2,365)
Interest rate swap contract maturing on 1 Aug 2026
Derivative [Line Items]
Hedge Item	Commercial loans	Commercial loans
Notional Amount	$ 23,656	$ 23,656
Receive Rate	1 Mth Libor +225 to 276 bp	1 Mth Libor +225 to 276 bp
Unrealized Gain (Loss)	$ 0	$ 0
Interest rate swap contract maturing on 12 Jun 2026
Derivative [Line Items]
Hedge Item	30 day wholesale funding	30 day wholesale funding
Notional Amount	$ 90,000	$ 90,000
Receive Rate	1 Mth Libor	1 Mth Libor
Unrealized Gain (Loss)	$ (2,181)	$ (3,495)
Interest rate swap contract maturing on 27 Mar 24
Derivative [Line Items]
Hedge Item	90 day wholesale funding	90 day wholesale funding
Notional Amount	$ 135,000	$ 135,000
Receive Rate	3 Mth Libor	3 Mth Libor
Unrealized Gain (Loss)	$ (4,867)	$ (6,974)
Minimum | Interest rate swap contract maturing on 1 May 2028
Derivative [Line Items]
Pay rate	3.06%	3.06%
Maturity date	Feb. 1, 2027	Feb. 1, 2027
Minimum | Interest rate swap contract maturing on 1 Aug 2026
Derivative [Line Items]
Pay rate	4.10%	4.10%
Maturity date	Jun. 13, 2025	Jun. 13, 2025
Minimum | Interest rate swap contract maturing on 12 Jun 2026
Derivative [Line Items]
Pay rate	1.36%	1.36%
Maturity date	Feb. 15, 2024	Feb. 15, 2024
Minimum | Interest rate swap contract maturing on 27 Mar 24
Derivative [Line Items]
Pay rate	2.51%	2.51%
Maturity date	Jan. 11, 2024	Jan. 11, 2024
Maximum | Interest rate swap contract maturing on 1 May 2028
Derivative [Line Items]
Pay rate	3.07%	3.07%
Maturity date	May 1, 2028	May 1, 2028
Maximum | Interest rate swap contract maturing on 1 Aug 2026
Derivative [Line Items]
Pay rate	5.74%	5.74%
Maturity date	Aug. 1, 2026	Aug. 1, 2026
Maximum | Interest rate swap contract maturing on 12 Jun 2026
Derivative [Line Items]
Pay rate	2.70%	2.70%
Maturity date	Jun. 12, 2026	Jun. 12, 2026
Maximum | Interest rate swap contract maturing on 27 Mar 24
Derivative [Line Items]
Pay rate	2.78%	2.78%
Maturity date	Mar. 27, 2024	Mar. 27, 2024

DERIVATIVES - Additional Inform

DERIVATIVES - Additional Information (Details)	3 Months Ended
	Dec. 31, 2021USD ($)securitycontractitemloan	Dec. 31, 2020USD ($)	Sep. 30, 2021securityloan
DERIVATIVES
Number of hedges | contract	13
Income recognized as ineffectiveness	$ 0	$ 2,000
Number of interest rate swaps | item	9
Number of loans | loan	3		3
Number of investment securities | security	7		7
Deposits as collateral for hedges	$ 10,100,000

INCOME TAXES - Items that gave

INCOME TAXES - Items that gave rise to significant portions of deferred income taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Deferred tax assets:
Allowance for loan losses	$ 1,697	$ 1,716
Nonaccrual interest	408	395
Accrued vacation	14	14
Capital loss carryforward	4	4
Other real estate owned	8	0
Split dollar life insurance	9	9
Post-retirement benefits	66	67
Unrealized losses on interest rate swaps	1,481	2,199
Deferred compensation	775	767
Goodwill	44	47
Lease liability	266	256
Other	25	79
Employee benefit plans	198	242
Total deferred tax assets	4,995	5,795
Valuation allowance	4	4
Total deferred tax assets, net of valuation allowance	4,991	5,791
Deferred tax liabilities:
Property	170	127
Right of Use	242	233
Realized gain on equity securities	3	3
Unrealized gains on available for sale securities	1,370	1,621
Purchase accounting adjustments	379	394
Deferred loan fees	436	392
Total deferred tax liabilities	2,600	2,770
Net deferred tax assets	$ 2,391	$ 3,021

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
INCOME TAXES
Period of capital gains recognized	5 years
Valuation allowance	$ 4	$ 4

STOCK COMPENSATION PLANS - 2008

STOCK COMPENSATION PLANS - 2008 Recognition and Retention Plan (Details) - USD ($)	1 Months Ended		3 Months Ended		12 Months Ended
	Mar. 31, 2019	Feb. 28, 2015	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
2014 Stock Incentive Plan (the "2014 SIP")
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting per year			20.00%
Vesting period of awards granted			5 years
2008 RRP and 2014 SIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional compensation expense for shares awarded remained unrecognized			$ 113,000
Restricted stock awards or units | 2008 Recognition and Retention Plan ("2008 RRP")
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted	8,209
Restricted stock awards or units | 2014 Stock Incentive Plan (the "2014 SIP")
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock available for issuance			285,655
Number of shares granted	18,291	233,500			0	0
Restricted stock awards or units | 2008 RRP and 2014 SIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted			5 years
Allocated Share-Based Compensation Expense			$ 41,000	$ 43,000

STOCK COMPENSATION PLANS - Summ

STOCK COMPENSATION PLANS - Summary of non-vested stock award activity (Details) - 2008 Recognition and Retention Plan ("2008 RRP") - Non-vested stock awards	3 Months Ended
	Dec. 31, 2021$ / sharesshares
Number of Shares
Non-vested stock awards at beginning of period | shares	23,056
Issued | shares	0
Forfeited | shares	0
Vested | shares	0
Non-vested stock awards at the end of the period | shares	23,056
Weighted Average Grant Date Fair Value
Nonvested stock awards at beginning of period | $ / shares	$ 17.78
Issued | $ / shares	0
Forfeited | $ / shares	0
Vested | $ / shares	0
Non-vested stock awards at the end of the period | $ / shares	$ 17.78

STOCK COMPENSATION PLANS - Opti

STOCK COMPENSATION PLANS - Option Plan (Details) - USD ($)	1 Months Ended			3 Months Ended
	Jun. 30, 2021	Sep. 30, 2020	Jul. 31, 2019	Dec. 31, 2021	Dec. 31, 2020
2008 Stock Option Plan (the "2008 Option Plan") | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting and exercisable per year				20.00%
Vesting period of options				5 years
Exercisable period of options after grant date				10 years
Number of common stock available for issuance				533,808
Number of shares granted				0
2014 Stock Incentive Plan (the "2014 SIP")
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of options				5 years
2014 Stock Incentive Plan (the "2014 SIP") | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock available for issuance				714,145
Number of options awarded	4,500	12,500	39,702
2008 Option Plan and 2014 SIP | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options awarded				0
Recognized compensation expense				$ 41,000	$ 43,000
Additional compensation expense for shares awarded remained unrecognized				$ 230,000

STOCK COMPENSATION PLANS - Su_2

STOCK COMPENSATION PLANS - Summary of status of stock options under Stock Option Plan (Details) - 2008 Option Plan and 2014 SIP - Stock Options	3 Months Ended
	Dec. 31, 2021$ / sharesshares
Number of Shares
Options outstanding at beginning of period | shares	521,258
Granted | shares	0
Exercised | shares
Forfeited | shares	0
Outstanding at the end of the period | shares	521,258
Exercisable at end of period | shares	418,471
Weighted Average Exercise Price
Options outstanding at beginning of period | $ / shares	$ 14.23
Granted | $ / shares	0
Exercised | $ / shares
Forfeited | $ / shares	0
Outstanding at the end of the period | $ / shares	14.23
Exercisable at end of period | $ / shares	$ 13.74

STOCK COMPENSATION PLANS - Op_2

STOCK COMPENSATION PLANS - Option Granted (Details) - Stock Options - USD ($)	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Granted in fiscal 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value of options granted per share	$ 2.31
Granted in fiscal 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value, valuation method	Black-Scholes pricing model
Exercise price and fair value	$ 10
Expected term	7 years
Volatility rate	33.22%
Expected interest rate	0.41%
Expected yield	2.80%
Granted in fiscal 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value of options granted per share	$ 3.91
Fair value, valuation method	Black-Scholes pricing model
Exercise price and fair value	$ 13.86
Expected term	7 years
Volatility rate	34.46%
Expected interest rate	1.19%
Expected yield	2.02%
2008 Option Plan and 2014 SIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term for options outstanding	4 years 3 months 18 days
Recognized compensation expense	$ 41,000	$ 43,000
Additional compensation expense for shares awarded remained unrecognized	$ 230,000
Weighted average period for recognition of nonvested awards	1 year 10 months 2 days

COMMITMENTS AND CONTINGENT LI_2

COMMITMENTS AND CONTINGENT LIABILITIES (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
COMMITMENTS AND CONTINGENT LIABILITIES
Outstanding commitments	$ 1,000
Aggregate undisbursed portion of loans-in-process	94,524	$ 80,620
Loan Origination Commitments
COMMITMENTS AND CONTINGENT LIABILITIES
Outstanding commitments	22,100	34,900
Aggregate undisbursed portion of loans-in-process	$ 94,500	$ 80,600
Loan Origination Commitments | Minimum
COMMITMENTS AND CONTINGENT LIABILITIES
Market interest rate on fixed and variable rate loans	4.25%	2.99%
Loan Origination Commitments | Maximum
COMMITMENTS AND CONTINGENT LIABILITIES
Market interest rate on fixed and variable rate loans	5.00%	5.00%
Unused lines of Credit
COMMITMENTS AND CONTINGENT LIABILITIES
Outstanding commitments	$ 43,300	$ 68,100
Letters of Credit
COMMITMENTS AND CONTINGENT LIABILITIES
Outstanding commitments	$ 1,200	$ 1,200

FAIR VALUE MEASUREMENT - Assets

FAIR VALUE MEASUREMENT - Assets measured at fair value on recurring and non-recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Fair Value, Measurements, Recurring
Assets:
Assets, Total	$ 297,952	$ 305,969
Liabilities:
Liabilities, Total	9,031	12,834
Fair Value, Measurements, Recurring | Level 1
Assets:
Assets, Total	428	22
Fair Value, Measurements, Recurring | Level 2
Assets:
Assets, Total	297,524	305,947
Liabilities:
Liabilities, Total	9,031	12,834
Fair Value, Measurements, Recurring | U.S. Government and agency obligations
Assets:
Assets, Total	3,022	3,194
Fair Value, Measurements, Recurring | U.S. Government and agency obligations | Level 2
Assets:
Assets, Total	3,022	3,194
Fair Value, Measurements, Recurring | State and political subdivisions
Assets:
Assets, Total	76,136	72,259
Fair Value, Measurements, Recurring | State and political subdivisions | Level 2
Assets:
Assets, Total	76,136	72,259
Fair Value, Measurements, Recurring | Mortgage-Backed Securities
Assets:
Assets, Total	116,247	135,353
Fair Value, Measurements, Recurring | Mortgage-Backed Securities | Level 2
Assets:
Assets, Total	116,247	135,353
Fair Value, Measurements, Recurring | Corporate bonds
Assets:
Assets, Total	102,119	95,141
Fair Value, Measurements, Recurring | Corporate bonds | Level 2
Assets:
Assets, Total	102,119	95,141
Fair Value, Measurements, Recurring | Equity security - FHLMC preferred stock
Assets:
Assets, Total	22	22
Fair Value, Measurements, Recurring | Equity security - FHLMC preferred stock | Level 1
Assets:
Assets, Total	22	22
Fair Value, Measurements, Recurring | Loans held for sale [Member]
Assets:
Assets, Total	406
Fair Value, Measurements, Recurring | Loans held for sale [Member] | Level 1
Assets:
Assets, Total	406
Fair Value, Measurements, Recurring | Interest rate swap
Liabilities:
Liabilities, Total	9,031	12,834
Fair Value, Measurements, Recurring | Interest rate swap | Level 2
Liabilities:
Liabilities, Total	9,031	12,834
Fair value measurements on a nonrecurring basis
Assets:
Assets, Total	4,109	4,109
Fair value measurements on a nonrecurring basis | Level 3
Assets:
Assets, Total	4,109	4,109
Fair value measurements on a nonrecurring basis | Other Real Estate Owned [Member]
Assets:
Assets, Total	4,109	4,109
Fair value measurements on a nonrecurring basis | Other Real Estate Owned [Member] | Level 3
Assets:
Assets, Total	$ 4,109	$ 4,109

FAIR VALUE MEASUREMENT - Valuat

FAIR VALUE MEASUREMENT - Valuation processes used to determine nonrecurring fair value measurements categorized within level 3 (Details) - Real estate owned - Fair value measurements on a nonrecurring basis - Level 3 - Management discount for selling costs, property type and market volatility - Property appraisals $ in Thousands	Dec. 31, 2021USD ($)	Sep. 30, 2021USD ($)
FAIR VALUE MEASUREMENT
Other Real estate owned	$ 4,109	$ 4,109
Real estate owned measurement input (in percent)	0.02	0.02

FAIR VALUE MEASUREMENT - Asse_2

FAIR VALUE MEASUREMENT - Assets measured at fair value on a non-recurring basis and the adjustments to the carrying value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Assets:
Loans receivable, net	$ 584,758	$ 618,206
Liabilities:
Advances from FHLB long-term	207,880	232,025
Carrying Amount
Assets:
Investment and mortgage-backed securities held to maturity	17,834	20,074
Loans receivable, net	584,758	618,206
Liabilities:
Certificates of deposit	235,058	244,877
Advances from FHLB long-term	207,880	232,025
Fair Value
Assets:
Investment and mortgage-backed securities held to maturity	18,777	21,161
Loans receivable, net	582,718	620,017
Liabilities:
Certificates of deposit	241,342	252,510
Advances from FHLB long-term	213,008	239,301
Level 1 | Fair Value
Assets:
Investment and mortgage-backed securities held to maturity	0	0
Loans receivable, net	0
Liabilities:
Certificates of deposit	0	0
Advances from FHLB long-term	0	0
Level 2 | Fair Value
Assets:
Investment and mortgage-backed securities held to maturity	18,777	21,161
Loans receivable, net	0
Liabilities:
Certificates of deposit	0	0
Advances from FHLB long-term	0	0
Level 3 | Fair Value
Assets:
Investment and mortgage-backed securities held to maturity	0	0
Loans receivable, net	582,718	620,017
Liabilities:
Certificates of deposit	241,342	252,510
Advances from FHLB long-term	$ 213,008	$ 239,301

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS - Related to acquisition of Polonia Bancorp (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill
Balance, Goodwill	$ 6,102
Balance, Goodwill	6,102
Core deposit intangible
Balance	246
Balance	224
GOODWILL AND OTHER INTANGIBLE ASSETS, Total
Amortization	(22)	$ (26)
Polonia Bancorp
Goodwill
Balance, Goodwill	6,102
Additions/Adjustments	0
Balance, Goodwill	6,102
GOODWILL AND OTHER INTANGIBLE ASSETS, Total
Balance, Total	6,348
Additions/Adjustments	0
Amortization	(22)
Balance, Total	6,326
Polonia Bancorp | Core deposit intangible
Core deposit intangible
Balance	246
Additions/Adjustments	0
Amortization	(22)
Balance	$ 224
Amortization Period	10 years

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS - Future fiscal periods amortization expense (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
GOODWILL AND OTHER INTANGIBLE ASSETS
2022	$ 56
2023	64
2024	49
2025	34
2026	18
Thereafter	3
Total	$ 224	$ 246