Timberland Bancorp (TSBK) 10-Q 8 Feb 22 2022 Q1 Quarterly report Financial data

Cover

Cover - $ / shares	3 Months Ended
	Dec. 31, 2021	Feb. 03, 2022	Sep. 30, 2021
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	000-23333
Entity Incorporation, State or Country Code	WA
Entity Tax Identification Number	91-1863696
Entity Address, Address Line One	624 Simpson Avenue
Entity Address, City or Town	Hoquiam
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	98550
City Area Code	(360)
Local Phone Number	533-4747
Title of 12(b) Security	Common stock, $.01 par value
Trading Symbol	TSBK
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 (in shares)		8,349,996
Common stock par value (in dollars per share)	$ 0.01		$ 0.01
Entity Registrant Name	TIMBERLAND BANCORP, INC.
Entity Central Index Key	0001046050
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Amendment Flag	false

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Dec. 31, 2021
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS In June 2016, the FASB issued Accounting Standards Update ("ASU") 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments , as amended by ASU 2018-19, ASU 2019-04, ASU 2019-05, ASU 2019-10 and ASU 2019-11. ASU 2016-13 replaces the existing incurred losses methodology with a current expected losses methodology with respect to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, held to maturity investment securities and off-balance sheet commitments. In addition, ASU 2016-13 requires credit losses relating to available for sale debt securities to be recorded through an allowance for credit losses rather than as a reduction of the carrying amount. ASU 2016-13 also changes the accounting for purchased credit-impaired securities and loans. ASU 2016-13 retains many of the current disclosure requirements in GAAP and expands certain disclosure requirements. ASU 2016-13 is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Upon adoption, the Company expects a change in the processes and procedures to calculate the allowance for loan losses, including changes in the assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. In addition, the current policy for OTTI on investment securities available for sale will be replaced with an allowance approach. The Company is reviewing the requirements of ASU 2016-13 and has begun developing and implementing processes and procedures to help ensure that it is fully compliant with the amendments at the adoption date. At this time, the Company anticipates that the allowance for loan losses will increase as a result of the implementation of this ASU; however, until its evaluation is complete, the magnitude of the increase will be unknown. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment. This ASU simplifies the subsequent measurement of goodwill and eliminates Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value of its assets and liabilities (including unrecognized assets and liabilities) at the impairment testing date following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Under ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. ASU 2017-04 is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2022. The adoption ASU 2017-04 is not expected to a have a material impact on the Company's future consolidated financial statements. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740), Simplifying the accounting for Income Taxes. The amendments in this ASU simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidelines. ASU 2019-12 was effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company adopted ASU 2019-12 effective October 1, 2021, and it did not have a material impact on the Company's consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU applies to contracts, hedging relationships and other transactions that reference the London Interbank Offered Rate ("LIBOR") or other rate references expected to be discontinued because of reference rate reform. The ASU permits an entity to make necessary modifications to eligible contracts or transactions without requiring contract remeasurement or reassessment of a previous accounting determination. This ASU is effective for all entities as of March 12, 2020 through December 31, 2022. The Company has not adopted ASU 2020-04 as of December 31, 2021. The adoption of ASU 2020-04 is not expected to have a material impact on the Company's future consolidated financial statements.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Cash and cash equivalents:
Cash and due from financial institutions	$ 20,539	$ 26,316	[1]
Interest-bearing deposits in banks	537,789	553,880	[1]
Total cash and cash equivalents	558,328	580,196	[1]
Certificates of deposit (“CDs”) held for investment (at cost, which      approximates fair value)	24,648	28,482	[1]
Investment securities held to maturity, at amortized cost (estimated fair value of $115,199 and $70,109)	114,600	69,102	[1]
Investment securities available for sale, at fair value	56,552	63,176	[1]
Investments in equity securities	946	955
Federal Home Loan Bank of Des Moines (“FHLB”) stock, at cost	2,103	2,103	[1]
Other investments, at cost	3,000	3,000	[1]
Loans held for sale	3,700	3,217	[1]
Loans receivable, net of allowance for loan losses of $13,468 and $13,469	994,007	968,454	[1]
Premises and equipment, net	22,108	22,367	[1]
Other real estate owned (“OREO”) and other repossessed assets, net	157	157	[1]
Accrued interest receivable	3,938	3,745	[1]
Bank owned life insurance (“BOLI”)	22,347	22,193	[1]
Goodwill	15,131	15,131	[1]
Core deposit intangible (“CDI”), net	1,185	1,264
Loan servicing rights, net	3,524	3,482	[1]
Operating lease right-of-use ("ROU") assets	2,206	2,283	[1]
Other assets	2,795	2,873	[1]
Total assets	1,831,275	1,792,180	[1]
Deposits:
Non-interest-bearing demand	523,518	535,212	[1]
Interest-bearing	1,083,113	1,035,343	[1]
Total deposits	1,606,631	1,570,555	[1]
FHLB borrowings	5,000	5,000	[1]
Operating lease liabilities	2,285	2,359
Other liabilities and accrued expenses	6,984	7,367	[1]
Total liabilities	1,620,900	1,585,281	[1]
Shareholders’ equity
Preferred stock, $0.01 par value; 1,000,000 shares authorized; none issued	0	0	[2]
Common stock, $0.01 par value; 50,000,000 shares authorized; 8,348,821 shares issued and outstanding - December 31, 2021 8,355,469 shares issued and outstanding - September 30, 2021	42,436	42,673	[2]
Retained earnings	167,897	164,167	[2]
Accumulated other comprehensive income	42	59	[2]
Total shareholders’ equity	210,375	206,899	[2]
Total liabilities and shareholders’ equity	$ 1,831,275	$ 1,792,180	[2]
[1]	Derived from audited consolidated financial statements.
[2]	Derived from audited consolidated financial statements.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Statement of Financial Position [Abstract]
Investments securities held to maturity, estimated fair value	$ 115,199	$ 70,109
Allowance for loan losses	$ 13,468	$ 13,469
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (shares)	1,000,000	1,000,000
Preferred stock shares issued (shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (shares)	50,000,000	50,000,000
Common stock shares issued (shares)	8,348,821	8,355,469
Common stock shares outstanding (shares)	8,348,821	8,355,469

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Interest and dividend income
Loans receivable and loans held for sale	$ 12,622	$ 13,318
Investment securities	405	301
Dividends from mutual funds, FHLB stock and other investments	27	28
Interest-bearing deposits in banks and CDs	288	310
Total interest and dividend income	13,342	13,957
Interest expense
Deposits	631	904
FHLB borrowings	15	29
Total interest expense	646	933
Net interest income	12,696	13,024
Provision for loan losses	0	0
Net interest income after provision for loan losses	12,696	13,024
Non-interest income
Net recoveries on investment securities	8	5
BOLI net earnings	154	149
Gain on sales of loans, net	663	2,002
Valuation recovery (allowance) on loan servicing rights, net	119	(236)
Other, net	230	323
Total non-interest income, net	3,442	4,559
Non-interest expense
Salaries and employee benefits	5,171	4,613
Premises and equipment	928	957
Advertising	166	156
OREO and other repossessed assets, net	(18)	(26)
ATM and debit card interchange transaction fees	464	431
Postage and courier	136	138
State and local taxes	255	283
Professional fees	271	231
Federal Deposit Insurance Corporation ("FDIC") insurance	128	96
Loan administration and foreclosure	104	80
Data processing and telecommunications	613	606
Deposit operations	299	284
Amortization of CDI	79	90
Other	668	471
Total non-interest expense, net	9,264	8,410
Income before income taxes	6,874	9,173
Provision for income taxes	1,389	1,883
Net income	$ 5,485	$ 7,290
Net income per common share
Basic (in dollars per share)	$ 0.66	$ 0.88
Diluted (in dollars per share)	$ 0.65	$ 0.87
Weighted average common shares outstanding
Basic (in shares)	8,356,066	8,313,493
Diluted (in shares)	8,448,900	8,412,744
Deposit Account
Non-interest income
Revenue from contract with customer	$ 913	$ 1,055
Credit and Debit Card
Non-interest income
Revenue from contract with customer	1,277	1,156
Asset Management
Non-interest income
Revenue from contract with customer	$ 78	$ 105

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Comprehensive income
Net income	$ 5,485	$ 7,290
Unrealized holding loss on investment securities available for sale, net of income taxes of $(5) and $(3), respectively	(18)	(17)
Change in other than temporary impairment ("OTTI") on investment securities held to maturity, net of income taxes:
Accretion of OTTI on investment securities held to maturity, net of income taxes of $0 and $0, respectively	1	0
Total other comprehensive loss, net of income taxes	(17)	(17)
Total comprehensive income	$ 5,468	$ 7,273

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Unrealized holding loss on investment securities available for sale, tax	$ (5)	$ (3)
Accretion of OTTI on investment securities held to maturity, tax	$ 0	$ 0

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total		Stock Options	Common Stock	Common StockStock Options	Retained Earnings	Accumulated Other Compre-hensive Income (Loss)
Balance at beginning of period (in shares) at Sep. 30, 2020				8,310,793
Balance at beginning of period at Sep. 30, 2020	$ 187,630			$ 42,396		$ 145,173	$ 61	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,290					7,290
Other comprehensive loss	(17)						(17)
Repurchase of common stock (in shares)				(2,900)
Repurchase of common stock	$ (58)			$ (58)
Exercise of stock options (in shares)	9,900			9,900
Exercise of stock options	$ 96			$ 96
Common stock dividends	(1,662)					(1,662)
Stock option compensation expense			$ 46		$ 46
Balance at end of period (in shares) at Dec. 31, 2020				8,317,793
Balance at end of period at Dec. 31, 2020	193,325			$ 42,480		150,801	44	[1]
Balance at beginning of period (in shares) at Sep. 30, 2021				8,355,469
Balance at beginning of period at Sep. 30, 2021	206,899	[2]		$ 42,673		164,167	59	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,485					5,485
Other comprehensive loss	(17)						(17)
Repurchase of common stock (in shares)				(15,548)
Repurchase of common stock	$ (433)			$ (433)
Exercise of stock options (in shares)	8,900			8,900
Exercise of stock options	$ 130			$ 130
Common stock dividends	(1,755)					(1,755)
Stock option compensation expense			$ 66		$ 66
Balance at end of period (in shares) at Dec. 31, 2021				8,348,821
Balance at end of period at Dec. 31, 2021	$ 210,375			$ 42,436		$ 167,897	$ 42	[1]
[1]	All amounts are net of income taxes.
[2]	Derived from audited consolidated financial statements.

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Common Stock
Dividends paid per common share (in dollars per share)	$ 0.21	$ 0.20

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021		Dec. 31, 2020
Cash flows from operating activities
Net income	$ 5,485		$ 7,290
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	358		391
Deferred income taxes	266		51
Accretion of discount on purchased loans	(57)		(121)
Amortization of CDI	79		90
Stock option compensation expense	66		46
Net recoveries on investment securities	(8)		(5)
Change in fair value of investments in equity securities	9		3
Amortization (accretion) of discounts and premiums on securities	101		(27)
Gain on sales of OREO and other repossessed assets, net	0		(21)
Gain on sales of loans, net	(663)		(2,002)
Loans originated for sale	(22,379)		(48,199)
Proceeds from sales of loans	22,559		43,839
Amortization of loan servicing rights	299		257
Valuation recovery (allowance) on loan servicing rights, net	(119)		236
BOLI net earnings	(154)		(149)
Decrease in deferred loan origination fees	(604)		(987)
Net change in accrued interest receivable and other assets, and other liabilities and accrued expenses	(978)		162
Net cash provided by operating activities	4,260		854
Cash flows from investing activities
Net decrease in CDs held for investment	3,834		15,916
Purchase of investment securities held to maturity	(48,486)		0
Purchase of investment securities available for sale	0		(10,267)
Proceeds from maturities and prepayments of investment securities held to maturity	2,995		3,444
Proceeds from maturities and prepayments of investment securities available for sale	6,502		2,360
Decrease (increase) in loans receivable, net	(24,892)		7,674
Additions to premises and equipment	(99)		(109)
Proceeds from sales of OREO and other repossessed assets	0		803
Net cash (used in) provided by investing activities	(60,146)		19,821
Cash flows from financing activities
Net increase in deposits	36,076		16,710
Proceeds from exercise of stock options	130		96
Repurchase of common stock	(433)		(58)
Payment of dividends	(1,755)		(1,662)
Net cash provided by financing activities	34,018		15,086
Net increase (decrease) in cash and cash equivalents	(21,868)		35,761
Cash and cash equivalents, at beginning of period	580,196	[1]	314,452
Cash and cash equivalents, at end of period	558,328		350,213
Supplemental disclosure of cash flow information
Interest paid	656		980
Supplemental disclosure of non-cash investing activities
Other comprehensive loss related to investment securities	$ (17)		$ (17)
[1]	Derived from audited consolidated financial statements.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	3 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (a) Basis of Presentation: The accompanying unaudited consolidated financial statements of Timberland Bancorp, Inc. and its wholly-owned subsidiary, Timberland Bank (the "Bank") (collectively, "the Company") were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with instructions for Form 10-Q and, therefore, do not include all disclosures necessary for a complete presentation of consolidated financial condition, results of operations, and cash flows in conformity with GAAP. However, all adjustments which are, in the opinion of management, necessary for a fair presentation of the interim consolidated financial statements have been included. All such adjustments are of a normal recurring nature. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended September 30, 2021 (“2021 Form 10-K”). The unaudited consolidated results of operations for the three months ended December 31, 2021 are not necessarily indicative of the results that may be expected for the entire fiscal year ending September 30, 2022. (b) Principles of Consolidation: The unaudited consolidated financial statements include the accounts of the Company and the Bank’s wholly-owned subsidiary, Timberland Service Corporation. All significant inter-company transactions and balances have been eliminated in consolidation. (c) Operating Segment: The Company has one reportable operating segment which is defined as community banking in western Washington under the operating name, "Timberland Bank." (d) The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities, as of the date of the consolidated balance sheets, and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates. (e) Certain prior period amounts have been reclassified to conform to the December 31, 2021 presentation with no change to previously reported net income or total shareholders’ equity.

Investment Securities

Investment Securities	3 Months Ended
	Dec. 31, 2021
Investments [Abstract]
Investment Securities	INVESTMENT SECURITIES Held to maturity and available for sale investment securities have been classified according to management’s intent and were as follows as of December 31, 2021 and September 30, 2021 (dollars in thousands): Amortized Gross Gross Estimated December 31, 2021 Held to maturity U.S. Treasury and U.S. government agency securities $ 67,195 $ 95 $ (285) $ 67,005 Mortgage-backed securities ("MBS"): U.S. government agencies 23,550 781 (192) 24,139 Private label residential 23,355 292 (94) 23,553 Bank issued trust preferred securities 500 2 — 502 Total $ 114,600 $ 1,170 $ (571) $ 115,199 Available for sale MBS: U.S. government agencies $ 56,481 $ 180 $ (109) $ 56,552 Total $ 56,481 $ 180 $ (109) $ 56,552 September 30, 2021 Held to maturity U.S. Treasury and U.S. government agency securities $ 28,760 $ 8 $ (99) $ 28,669 MBS: U.S. government agencies 25,913 936 (122) 26,727 Private label residential 13,929 302 (23) 14,208 Bank issued trust preferred securities 500 5 — 505 Total $ 69,102 $ 1,251 $ (244) $ 70,109 Available for sale MBS: U.S. government agencies $ 63,080 $ 210 $ (114) $ 63,176 Total $ 63,080 $ 210 $ (114) $ 63,176 Held to maturity and available for sale investment securities with unrealized losses were as follows as of December 31, 2021 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Gross Quantity Estimated Gross Quantity Estimated Gross Held to maturity MBS: U.S. government agencies $ 40,171 $ (285) 10 $ — $ — — $ 40,171 $ (285) Private label residential 8,213 (192) 5 14 — 3 8,227 (192) U.S. Treasury and U.S. government agency securities 17,041 (94) 9 1 — 1 17,042 (94) Total $ 65,425 $ (571) 24 $ 15 $ — 4 $ 65,440 $ (571) Available for sale MBS: U.S. government agencies $ 9,941 $ (66) 10 $ 13,439 $ (43) 7 $ 23,380 $ (109) Total $ 9,941 $ (66) 10 $ 13,439 $ (43) 7 $ 23,380 $ (109) Held to maturity and available for sale investment securities with unrealized losses were as follows as of September 30, 2021 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Gross Quantity Estimated Gross Quantity Estimated Gross Held to maturity MBS: U.S. government agencies $ 8,091 $ (122) 5 $ 15 $ — 3 $ 8,106 $ (122) Private label residential 9,712 (23) 4 1 — 1 9,713 (23) U.S. Treasury and U.S. government agency securities 18,795 (99) 5 — — — 18,795 (99) Total $ 36,598 $ (244) 14 $ 16 $ — 4 $ 36,614 $ (244) Available for sale MBS: U.S. government agencies $ 20,146 $ (103) 13 $ 5,491 $ (11) 3 $ 25,637 $ (114) Total $ 20,146 $ (103) 13 $ 5,491 $ (11) 3 $ 25,637 $ (114) The Company has evaluated the investment securities in the above tables and has determined that the declines in their fair value are temporary. The unrealized losses are primarily due to changes in market interest rates and spreads in the market for mortgage-related products. The fair value of these securities is expected to recover as the securities approach their maturity dates and/or as the pricing spreads narrow on mortgage-related securities. The Company has the ability and the intent to hold the investments until the fair value recovers. Further, as of December 31, 2021, management does not have the intent to sell any of the securities classified as available for sale for which the estimated fair value is below the recorded value and believes that it is more likely than not that the Company will not have to sell such securities before a recovery of cost (or recorded value if previously written down). The Company bifurcates OTTI into (1) amounts related to credit losses which are recognized through earnings and (2) amounts related to all other factors which are recognized as a component of other comprehensive income (loss). To determine the component of the gross OTTI related to credit losses, the Company compared the amortized cost basis of the OTTI security to the present value of its revised expected cash flows, discounted using its pre-impairment yield. The revised expected cash flow estimates for individual securities are based primarily on an analysis of default rates, prepayment speeds and third-party analytic reports. Significant judgment by management is required in this analysis that includes, but is not limited to, assumptions regarding the collectability of principal and interest, net of related expenses, on the underlying loans. The following table presents a summary of the significant inputs utilized to measure management’s estimates of the credit loss component on OTTI securities as of December 31, 2021 and 2020: Range Weighted Minimum Maximum Average December 31, 2021 Constant prepayment rate 6.00 % 15.00 % 12.50 % Collateral default rate 1.56 % 22.67 % 12.14 % Loss severity rate — % 13.95 % 3.30 % December 31, 2020 Constant prepayment rate 6.00 % 15.00 % 9.23 % Collateral default rate 1.50 % 23.73 % 13.58 % Loss severity rate — % 10.07 % 3.44 % The following table presents the OTTI recoveries for the three months ended December 31, 2021 and 2020 (dollars in thousands): Three Months Ended Three Months Ended Held To Held To Total recoveries $ 8 $ 5 Net recoveries recognized in earnings (1) $ 8 $ 5 _________________ (1) Represents OTTI related to credit losses. The following table presents a roll forward of the credit loss component of held to maturity and available for sale debt securities that have been written down for OTTI with the credit loss component recognized in earnings for the three months ended December 31, 2021 and 2020 (dollars in thousands): Three Months Ended 2021 2020 Beginning balance of credit loss $ 853 $ 885 Subtractions: Net realized gain (losses) previously recorded as credit losses 1 (3) Recovery of prior credit loss (4) (5) Ending balance of credit loss $ 850 $ 877 During the three months ended December 31, 2021, the Company recorded a $3,000 net realized loss (as a result of investment securities being deemed worthless) on 15 held to maturity investment securities. During the three months ended December 31, 2020, the Company recorded a $3,000 net realized loss (as a result of investment securities being deemed worthless) on 15 held to maturity investment securities, all of which had been recognized previously as a credit loss. The recorded amount of investment securities pledged as collateral for public fund deposits, federal treasury tax and loan deposits, FHLB collateral and other non-profit organization deposits totaled $89.58 million and $97.60 million at December 31, 2021 and September 30, 2021, respectively. The contractual maturities of debt securities at December 31, 2021 were as follows (dollars in thousands). Expected maturities may differ from scheduled maturities due to the prepayment of principal or call provisions. Held to Maturity Available for Sale Amortized Estimated Amortized Estimated Due within one year $ — $ — $ 744 $ 743 Due after one year to five years 35,148 35,214 3,710 3,709 Due after five years to ten years 51,072 51,272 13,432 13,454 Due after ten years 28,380 28,713 38,595 38,646 Total $ 114,600 $ 115,199 $ 56,481 $ 56,552

Goodwill and CDI

Goodwill and CDI	3 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and CDI	GOODWILL AND CDI Goodwill is initially recorded when the purchase price paid in a business combination exceeds the estimated fair value of the net identified tangible and intangible assets acquired and liabilities assumed. Goodwill is presumed to have an indefinite useful life and is analyzed annually for impairment. The Company performs an annual review during the third quarter of each fiscal year, or more frequently if indicators of potential impairment exist, to determine if the recorded goodwill is impaired. For purposes of goodwill impairment testing, the services offered through the Bank and its subsidiary are managed as one strategic unit and represent the Company's only reporting unit. The annual goodwill impairment test begins with a qualitative assessment of whether it is "more likely than not" that the reporting unit's fair value is less than its carrying amount. If an entity concludes that it is not "more likely than not" that the fair value of a reporting unit is less than its carrying amount, it need not perform a two-step impairment test. If the Company's qualitative assessment concluded that it is "more likely than not" that the fair value of its reporting unit is less than its carrying amount, it must perform the two-step impairment test to identify potential goodwill impairment and measure the amount of goodwill impairment loss to be recognized, if any. The first step of the goodwill impairment test compares the estimated fair value of the reporting unit with its carrying amount, or the book value, including goodwill. If the estimated fair value of the reporting unit equals or exceeds its book value, goodwill is considered not impaired, and the second step of the impairment test is unnecessary. The second step, if necessary, measures the amount of goodwill impairment loss to be recognized. The reporting unit must determine fair value for all assets and liabilities, excluding goodwill. The net of the assigned fair value of assets and liabilities is then compared to the book value of the reporting unit, and any excess book value becomes the implied fair value of goodwill. If the carrying amount of the goodwill exceeds the newly calculated implied fair value of goodwill, an impairment loss is recognized in the amount required to write-down the goodwill to the implied fair value. Management's qualitative assessment takes into consideration macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price of the Company's common stock. The Company performed its fiscal year 2021 goodwill impairment test during the quarter ended June 30, 2021. Based on this assessment, the Company determined that it is not "more likely than not" that the Company's fair value is less than its carrying amount, and, therefore, goodwill was determined not to be impaired at May 31, 2021. A significant amount of judgment is involved in determining if an indicator of goodwill impairment has occurred. Such indicators may include, among others: a significant decline in expected future cash flows; a sustained, significant decline in the Company's stock price and market capitalization; a significant adverse change in legal factors or in the business climate; adverse assessment or action by a regulator; and unanticipated competition. Any change in these indicators could have a significant negative impact on the Company's financial condition, impact the goodwill impairment analysis or cause the Company to perform a goodwill impairment analysis more frequently than once per year. As of December 31, 2021, management believes that there have been no events or changes in the circumstances since May 31, 2021 that would indicate a potential impairment of goodwill. No assurances can be given, however, that the Company will not record an impairment loss on goodwill in the future. If adverse economic conditions or decreases in the Company's stock price and market capitalization as a result of the novel coronavirus of 2019 ("COVID-19") pandemic were to be deemed to be other than temporary, it may significantly affect the fair value of the Company's goodwill and may trigger impairment charges. Any impairment charge could have a material adverse effect on the Company's results of operations and financial condition. The recorded amount of goodwill at December 31, 2021 and September 30, 2021 remained unchanged at $15.13 million.

Loans Receivable And Allowance

Loans Receivable And Allowance For Loan Losses	3 Months Ended
	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans Receivable And Allowance For Loan Losses	LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES Loans receivable by portfolio segment consisted of the following at December 31, 2021 and September 30, 2021 (dollars in thousands): December 31, September 30, Amount Percent Amount Percent Mortgage loans: One- to four-family (1) $ 129,151 11.6 % $ 119,935 11.1 % Multi-family 84,180 7.5 87,563 8.1 Commercial 497,361 44.5 470,650 43.5 Construction - custom and owner/builder 116,267 10.4 109,152 10.1 Construction - speculative one- to four-family 18,255 1.6 17,813 1.6 Construction - commercial 42,611 3.8 43,365 4.0 Construction - multi-family 54,710 4.9 52,071 4.8 Construction - land development 13,680 1.2 10,804 1.0 Land 18,568 1.7 19,936 1.8 Total mortgage loans 974,783 87.2 931,289 86.0 Consumer loans: Home equity and second mortgage 34,375 3.1 32,988 3.1 Other 2,462 0.2 2,512 0.2 Total consumer loans 36,837 3.3 35,500 3.3 Commercial loans: Commercial business 85,006 7.6 74,579 6.9 U.S. Small Business Administration ("SBA") Paycheck Protection Program ("PPP") loans 21,397 1.9 40,922 3.8 Total commercial loans 106,403 9.5 % 115,501 10.7 Total loans receivable 1,118,023 100.0 % 1,082,290 100.0 % Less: Undisbursed portion of construction loans in process 106,009 95,224 Deferred loan origination fees, net 4,539 5,143 Allowance for loan losses 13,468 13,469 Subtotal 124,016 113,836 Loans receivable, net $ 994,007 $ 968,454 _____________________________ (1) Does not include one- to four-family loans held for sale totaling $3,700 and $3,217 at December 31, 2021 and September 30, 2021, respectively. Loans receivable at December 31, 2021 and September 30, 2021 are reported net of unamortized discounts totaling $392,000 and $449,000, respectively. Allowance for Loan Losses The following tables set forth information for the three months ended December 31, 2021 and 2020 regarding activity in the allowance for loan losses by portfolio segment (dollars in thousands): Three Months Ended December 31, 2021 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,154 $ 83 $ — $ — $ 1,237 Multi-family 765 (17) — — 748 Commercial 6,813 (6) — — 6,807 Construction – custom and owner/builder 644 27 — — 671 Construction – speculative one- to four-family 188 (35) — — 153 Construction – commercial 784 (191) — — 593 Construction – multi-family 436 24 — — 460 Construction – land development 124 33 — — 157 Land 470 (35) — — 435 Consumer loans: Home equity and second mortgage 528 4 — — 532 Other 50 (1) (1) — 48 Commercial business loans 1,513 114 — — 1,627 Total $ 13,469 $ — $ (1) $ — $ 13,468 Three Months Ended December 31, 2020 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,163 $ (28) $ — $ — $ 1,135 Multi-family 718 39 — — 757 Commercial 7,144 (8) — — 7,136 Construction – custom and owner/builder 832 (62) — — 770 Construction – speculative one- to four-family 158 24 — — 182 Construction – commercial 420 138 — — 558 Construction – multi-family 238 (52) — — 186 Construction – land development 133 (10) — — 123 Land 572 (103) — 5 474 Consumer loans: Home equity and second mortgage 593 12 — — 605 Other 71 (18) — 4 57 Commercial business loans 1,372 68 — 9 1,449 Total $ 13,414 $ — $ — $ 18 $ 13,432 The following tables present information on the loans evaluated individually and collectively for impairment in the allowance for loan losses by portfolio segment at December 31, 2021 and September 30, 2021 (dollars in thousands): Allowance for Loan Losses Recorded Investment in Loans Individually Collectively Total Individually Collectively Total December 31, 2021 Mortgage loans: One- to four-family $ — $ 1,237 $ 1,237 $ 582 $ 128,569 $ 129,151 Multi-family — 748 748 — 84,180 84,180 Commercial — 6,807 6,807 3,037 494,324 497,361 Construction – custom and owner/builder — 671 671 — 63,748 63,748 Construction – speculative one- to four-family — 153 153 — 8,760 8,760 Construction – commercial — 593 593 — 32,290 32,290 Construction – multi-family — 460 460 — 27,122 27,122 Construction – land development — 157 157 — 7,594 7,594 Land 78 357 435 675 17,893 18,568 Consumer loans: Home equity and second mortgage — 532 532 456 33,919 34,375 Other — 48 48 5 2,457 2,462 Commercial business loans 176 1,451 1,627 459 84,547 85,006 SBA PPP loans — — — — 21,397 21,397 Total $ 254 $ 13,214 $ 13,468 $ 5,214 $ 1,006,800 $ 1,012,014 September 30, 2021 Mortgage loans: One- to four-family $ — $ 1,154 $ 1,154 $ 407 $ 119,528 $ 119,935 Multi-family — 765 765 — 87,563 87,563 Commercial — 6,813 6,813 3,143 467,507 470,650 Construction – custom and owner/builder — 644 644 — 61,003 61,003 Construction – speculative one- to four-family — 188 188 — 9,657 9,657 Construction – commercial — 784 784 — 38,931 38,931 Construction – multi-family — 436 436 — 22,888 22,888 Construction – land development — 124 124 — 5,502 5,502 Land 76 394 470 683 19,253 19,936 Consumer loans: Home equity and second mortgage — 528 528 516 32,472 32,988 Other — 50 50 17 2,495 2,512 Commercial business loans 171 1,342 1,513 458 74,121 74,579 SBA PPP loans — — — — 40,922 40,922 Total $ 247 $ 13,222 $ 13,469 $ 5,224 $ 981,842 $ 987,066 The following tables present an analysis of loans by aging category and portfolio segment at December 31, 2021 and September 30, 2021 (dollars in thousands): 30–59 60-89 Non- Past Due Total Current Total December 31, 2021 Mortgage loans: One- to four-family $ 23 $ — $ 582 $ — $ 605 $ 128,546 $ 129,151 Multi-family — — — — — 84,180 84,180 Commercial 34 183 675 — 892 496,469 497,361 Construction – custom and owner/builder — 143 — — 143 63,605 63,748 Construction – speculative one- to four-family — — — — — 8,760 8,760 Construction – commercial — — — — — 32,290 32,290 Construction – multi-family — — — — — 27,122 27,122 Construction – land development — — — — — 7,594 7,594 Land — — 676 — 676 17,892 18,568 Consumer loans: Home equity and second mortgage — — 456 — 456 33,919 34,375 Other — — 5 — 5 2,457 2,462 Commercial business loans — — 459 — 459 84,547 85,006 SBA PPP loans — — — — — 21,397 21,397 Total $ 57 $ 326 $ 2,853 $ — $ 3,236 $ 1,008,778 $ 1,012,014 September 30, 2021 Mortgage loans: One- to four-family $ — $ 180 $ 407 $ — $ 587 $ 119,348 $ 119,935 Multi-family — — — — — 87,563 87,563 Commercial — — 773 — 773 469,877 470,650 Construction – custom and owner/builder — — — — — 61,003 61,003 Construction – speculative one- to four-family — — — — — 9,657 9,657 Construction – commercial — — — — — 38,931 38,931 Construction – multi-family — — — — — 22,888 22,888 Construction – land development — — — — — 5,502 5,502 Land — — 683 — 683 19,253 19,936 Consumer loans: Home equity and second mortgage — — 516 — 516 32,472 32,988 Other — — 17 — 17 2,495 2,512 Commercial business loans 5 458 463 74,116 74,579 SBA PPP loans — — — — — 40,922 40,922 Total $ 5 $ 180 $ 2,854 $ — $ 3,039 $ 984,027 $ 987,066 ______________________ (1) Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual. Credit Quality Indicators The Company uses credit risk grades which reflect the Company’s assessment of a loan’s risk or loss potential. The Company categorizes loans into risk grade categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors such as the estimated fair value of the collateral. The Company uses the following definitions for credit risk ratings as part of the on-going monitoring of the credit quality of its loan portfolio: Pass: Pass loans are defined as those loans that meet acceptable quality underwriting standards. Watch: Watch loans are defined as those loans that still exhibit acceptable quality, but have some concerns that justify greater attention. If these concerns are not corrected, a potential for further adverse categorization exists. These concerns could relate to a specific condition peculiar to the borrower, its industry segment or the general economic environment. Special Mention: Special mention loans are defined as those loans deemed by management to have some potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in the deterioration of the payment prospects of the loan. Substandard: Substandard loans are defined as those loans that are inadequately protected by the current net worth and paying capacity of the obligor, or of the collateral pledged. Loans classified as substandard have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. If the weakness or weaknesses are not corrected, there is the distinct possibility that some loss will be sustained. Doubtful: Loans in this classification have the weaknesses of substandard loans with the additional characteristic that the weaknesses make the collection or liquidation in full on the basis of currently existing facts, conditions and values questionable, and there is a high possibility of loss. At December 31, 2021 and September 30, 2021, there were no loans classified as doubtful. Loss: Loans in this classification are considered uncollectible and of such little value that continuance as bankable assets is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this loan even though partial recovery may be realized in the future. At December 31, 2021 and September 30, 2021, there were no loans classified as loss. The following tables present an analysis of loans by credit quality indicator and portfolio segment at December 31, 2021 and September 30, 2021 (dollars in thousands): Loan Grades December 31, 2021 Pass Watch Special Substandard Total Mortgage loans: One- to four-family $ 127,984 $ 47 $ 533 $ 587 $ 129,151 Multi-family 84,180 — — — 84,180 Commercial 483,057 5,326 2,919 6,059 497,361 Construction – custom and owner/builder 62,024 1,724 — — 63,748 Construction – speculative one- to four-family 8,760 — — — 8,760 Construction – commercial 30,773 — 1,517 — 32,290 Construction – multi-family 27,122 — — — 27,122 Construction – land development 7,562 — — 32 7,594 Land 17,288 549 — 731 18,568 Consumer loans: Home equity and second mortgage 33,635 145 — 595 34,375 Other 2,391 66 — 5 2,462 Commercial business loans 84,473 — 33 500 85,006 SBA PPP loans 21,397 — — — 21,397 Total $ 990,646 $ 7,857 $ 5,002 $ 8,509 $ 1,012,014 September 30, 2021 Mortgage loans: One- to four-family $ 118,857 $ 129 $ 537 $ 412 $ 119,935 Multi-family 87,563 — — — 87,563 Commercial 456,188 10,285 2,921 1,256 470,650 Construction – custom and owner/builder 59,699 1,304 — — 61,003 Construction – speculative one- to four-family 9,657 — — — 9,657 Construction – commercial 37,414 — 1,517 — 38,931 Construction – multi-family 22,888 — — — 22,888 Construction – land development 5,467 — — 35 5,502 Land 18,648 558 — 730 19,936 Consumer loans: Home equity and second mortgage 32,190 145 — 653 32,988 Other 2,465 30 — 17 2,512 Commercial business loans 73,992 49 37 501 74,579 SBA PPP loans 40,922 — — — 40,922 Total $ 965,950 $ 12,500 $ 5,012 $ 3,604 $ 987,066 Impaired Loans A loan is considered impaired when it is probable that the Company will be unable to collect all amounts (principal and interest) when due according to the contractual terms of the loan agreement. Smaller balance homogeneous loans, such as residential mortgage loans and consumer loans, may be collectively evaluated for impairment. When a loan has been identified as being impaired, the amount of the impairment is measured by using discounted cash flows, except when, as an alternative, the current estimated fair value of the collateral (reduced by estimated costs to sell, if applicable) or observable market price is used. The valuation of real estate collateral is subjective in nature and may be adjusted in future periods because of changes in economic conditions. Management considers third-party appraisals, as well as independent fair market value assessments from realtors or persons involved in selling real estate, in determining the estimated fair value of particular properties. In addition, as certain of these third-party appraisals and independent fair market value assessments are only updated periodically, changes in the values of specific properties may have occurred subsequent to the most recent appraisals. Accordingly, the amounts of any such potential changes and any related adjustments are generally recorded at the time that such information is received. When the estimated net realizable value of the impaired loan is less than the recorded investment in the loan (including accrued interest and net deferred loan origination fees or costs), impairment is recognized by creating or adjusting an allocation of the allowance for loan losses, and uncollected accrued interest is reversed against interest income. If ultimate collection of principal is in doubt, all cash receipts on impaired loans are applied to reduce the principal balance. The categories of non-accrual loans and impaired loans overlap, although they are not identical. The following table is a summary of information related to impaired loans by portfolio segment as of December 31, 2021 and for the three months then ended (dollars in thousands): Recorded Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Year to Date ("YTD") Average Recorded Investment (1) YTD Interest Income Recognized (1) YTD Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 582 $ 625 $ — $ 495 $ 8 $ 8 Commercial 3,037 3,037 — 3,090 40 31 Land 313 313 — 317 — — Consumer loans: Home equity and second mortgage 456 456 — 486 — — Other 5 5 — 11 — — Commercial business loans 160 163 — 163 — — Subtotal 4,553 4,599 — 4,562 48 39 With an allowance recorded: Mortgage loans: Land 362 362 78 362 — — Commercial business loans 299 299 176 297 — — Subtotal 661 661 254 659 — — Total: Mortgage loans: One- to four-family 582 625 — 495 8 8 Commercial 3,037 3,037 — 3,090 40 31 Land 675 675 78 679 — — Consumer loans: Home equity and second mortgage 456 456 — 486 — — Other 5 5 — 11 — — Commercial business loans 459 462 176 460 — — Total $ 5,214 $ 5,260 $ 254 $ 5,221 $ 48 $ 39 ______________________________________________ (1) For the three months ended December 31, 2021. Recorded Unpaid Principal Balance (Loan Balance Plus Charge Off) Related YTD YTD Interest YTD Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 407 $ 450 $ — $ 655 $ 58 $ 52 Commercial 3,143 3,143 — 3,039 159 127 Land 321 321 — 292 2 2 Consumer loans: Home equity and second mortgage 516 516 — 552 1 1 Other 17 17 — 12 — — Commercial business loans 164 168 — 200 — — Subtotal 4,568 4,615 — 4,750 220 182 With an allowance recorded: Mortgage loans: One- to four-family — — — 97 — — Land 362 362 76 72 — — Commercial business loans 294 294 171 285 — — Subtotal 656 656 247 454 — — Total Mortgage loans: One- to four-family 407 450 — 752 58 52 Commercial 3,143 3,143 — 3,039 159 127 Land 683 683 76 364 2 2 Consumer loans: Home equity and second mortgage 516 516 — 552 1 1 Other 17 17 — 12 — — Commercial business loans 458 462 171 485 — — Total $ 5,224 $ 5,271 $ 247 $ 5,204 $ 220 $ 182 _____________________________________________ (1) For the year ended September 30, 2021. A troubled debt restructured loan ("TDR") is a loan for which the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. Examples of such concessions include, but are not limited to: a reduction in the stated interest rate; an extension of the maturity at an interest rate below current market rates; a reduction in the face amount of the debt; a reduction in the accrued interest; or re-amortizations, extensions, deferrals and renewals. TDRs are considered impaired and are individually evaluated for impairment. TDRs are classified as non-accrual (and considered to be non-performing) unless they have been performing in accordance with modified terms for a period of at least six months. The Company had $2.54 million and $2.55 million in TDRs included in impaired loans at December 31, 2021 and September 30, 2021, respectively, and had no commitments at these dates to lend additional funds on these loans. There was no allowance for loan losses allocated to TDRs at December 31, 2021 and September 30, 2021. There were no TDRs for which there was a payment default within the first 12 months of the modification during the three months ended December 31, 2021. The Coronavirus Aid, Relief, and Economic Security Act of 2020 signed into law on March 27, 2020 ("CARES Act") provided guidance around the modification of loans as a result of the COVID-19 pandemic, which outlined, among other criteria, that short-term modifications made on a good faith basis to borrowers who were current as defined under the CARES Act prior to any relief, are not TDRs. This includes short-term (e.g., six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers are considered current under the CARES Act and related regulatory guidance if they are less than 30 days past due on their contractual payments at the time a modification program is implemented. On December 27, 2020, the Consolidated Appropriations Act, 2021 ("CAA 2021") was signed into law. Among other purposes, this act provided coronavirus emergency response and relief, including extending relief offered under the CARES Act related to restructured loans as a result of COVID-19, this provision ended on January 1, 2022. In response to requests from borrowers and in accordance with the CARES Act and related regulatory guidance, the Company made payment deferral COVID-19 related modifications (typically 90-day payment deferrals with interest continuing to accrue or scheduled to be paid monthly) on a number of loans. All of these borrowers had resumed making payments as of December 31, 2021. Loan modifications in accordance with the CARES Act and related regulatory guidance are still subject to an evaluation in regard to determining whether or not a loan is deemed to be impaired. See Note 10 - Recent Accounting Pronouncements. There were no loans with COVID-19 loan modifications on deferral status outstanding at December 31, 2021. The following table set forth information with respect to COVID-19 loan modifications on deferral status at September 30, 2021 (dollars in thousands): COVID-19 Loan Modifications September 30, 2021 Mortgage loans Number Balance Percent One- to four-family 1 $ 323 100.0 % Total COVID-19 Modifications 1 $ 323 100.0 % The following tables set forth information with respect to the Company’s TDRs by interest accrual status as of December 31, 2021 and September 30, 2021 (dollars in thousands): December 31, 2021 Accruing Non- Total Mortgage loans: Commercial $ 2,361 $ — $ 2,361 Land — 116 116 Consumer loans: Home equity and second mortgage — 62 62 Total $ 2,361 $ 178 $ 2,539 September 30, 2021 Accruing Non- Total Mortgage loans: Commercial $ 2,371 $ — $ 2,371 Land — 119 119 Consumer loans: Home equity and second mortgage — 63 63 Total $ 2,371 $ 182 $ 2,553 There were no new TDRs recognized during the three months ended December 31, 2021 or during the year ended September 30, 2021.

Leases

Leases	3 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	LEASES The Company adopted the Financial Accounting Standard Board's ("FASB's") Accounting Standards Codification ("ASC") 842, Leases ("ASC 842") on October 1, 2019 and began recording operating lease liabilities and operating lease ROU assets in the consolidated balance sheets. The Company has operating leases for three retail bank branch offices. The ROU assets totaled $2.89 million at October 1, 2019. The Company's leases have remaining lease terms of sixteen months to eleven years, some of which include options to extend the leases for up to five years. The components of lease cost (included in the premises and equipment expense category in the consolidated statements of income) are as follows for the three months ended December 31, 2021 and 2020 (dollars in thousands): Three Months Ended December 31, 2021 Three Months Ended December 31, 2020 Lease cost: Operating lease cost $ 94 $ 93 Short-term lease cost — — Total lease cost $ 94 $ 93 The following table provides supplemental information related to operating leases at or for the three months ended December 31, 2021 and the year ended September 30, 2021 (dollars in thousands): At or For Three Months Ended December 31, 2021 At or For the Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 87 $ 327 Weighted average remaining lease term-operating leases 8.2 years 8.4 years Weighted average discount rate-operating leases 2.24 % 2.24 % The Company's leases typically do not contain a discount rate implicit in the lease contracts. As an alternative, the weighted average discount rate used to estimate the present value of future lease payments in calculating the value of the ROU asset and liability was determined by utilizing the September 30, 2019 fixed-rate advances issued by the FHLB, for all leases entered into prior to the October 1, 2019 adoption date. Maturities of operating lease liabilities at December 31, 2021 for future fiscal years are as follows (dollars in thousands): Remainder of 2022 $ 255 2023 310 2024 313 2025 317 2026 284 Thereafter 1,038 Total lease payments 2,517 Less imputed interest 232 Total $ 2,285

Net Income Per Common Share

Net Income Per Common Share	3 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Net Income Per Common Share	NET INCOME PER COMMON SHARE Basic net income per common share is computed by dividing net income to common shareholders by the weighted average number of common shares outstanding during the period without considering any dilutive items. Diluted net income per common share is computed by dividing net income to common shareholders by the weighted average number of common shares and common stock equivalents for items that are dilutive, net of shares assumed to be repurchased using the treasury stock method at the average share price for the Company’s common stock during the period. Common stock equivalents arise from the assumed conversion of outstanding stock options to purchase common stock. Information regarding the calculation of basic and diluted net income per common share for the three months ended December 31, 2021 and 2020 is as follows (dollars in thousands, except per share amounts): Three Months Ended December 31, 2021 2020 Basic net income per common share computation Numerator – net income $ 5,485 $ 7,290 Denominator – weighted average common shares outstanding 8,356,066 8,313,493 Basic net income per common share $ 0.66 $ 0.88 Diluted net income per common share computation Numerator – net income $ 5,485 $ 7,290 Denominator – weighted average common shares outstanding 8,356,066 8,313,493 Effect of dilutive stock options (1) 92,834 99,251 Weighted average common shares outstanding - assuming dilution 8,448,900 8,412,744 Diluted net income per common share $ 0.65 $ 0.87 ____________________________________________

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The changes in accumulated other comprehensive income (loss) ("AOCI") by component during the three months ended December 31, 2021 and 2020 are as follows (dollars in thousands): Three Months Ended December 31, 2021 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ 75 $ (16) $ 59 Other comprehensive loss (18) 1 (17) Balance of AOCI at the end of period $ 57 $ (15) $ 42 Three Months Ended December 31, 2020 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ 87 $ (26) $ 61 Other comprehensive loss (17) — (17) Balance of AOCI at the end of period $ 70 $ (26) $ 44 __________________________ (1) All amounts are net of income taxes.

Stock Compensation Plans

Stock Compensation Plans	3 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
Stock Compensation Plans	STOCK COMPENSATION PLANS Under the Company’s 2003 Stock Option Plan, the Company was able to grant options for up to 300,000 shares of common stock to employees, officers, directors and directors emeriti. Under the Company's 2014 Equity Incentive Plan, the Company is able to grant options and awards of restricted stock (with or without performance measures) for up to 352,366 shares of common stock to employees, officers, directors and directors emeriti. Under the Company's 2019 Equity Incentive Plan, the Company is able to grant options and awards or restricted stock (with or without performance measures) for up to 350,000 shares of common stock, of which 300,000 shares are reserved to be awarded to employees, including officers, and 50,000 shares are reserved to be awarded to directors and directors emeriti. Shares issued may be purchased in the open market or may be issued from authorized and unissued shares. The exercise price of each option equals the fair market value of the Company’s common stock on the date of grant. Generally, options and restricted stock vest in 20% annual installments on each of the five At both December 31, 2021 and 2020, there were no unvested restricted stock awards. There were no restricted stock grants awarded during the three months ended December 31, 2021 and 2020. Stock option activity for the three months ended December 31, 2021 and 2020 is summarized as follows: Three Months Ended December 31, 2021 Three Months Ended December 31, 2020 Number of Shares Weighted Number of Shares Weighted Options outstanding, beginning of period 406,815 $ 21.62 395,349 $ 18.45 Exercised (8,900) 14.63 (9,900) 9.70 Granted 1,000 27.25 1,500 19.13 Forfeited (11,594) 25.28 (2,320) 26.69 Options outstanding, end of period 387,321 $ 21.70 384,629 $ 18.62 The fair value of stock options is determined using the Black-Scholes valuation model. The weighted average assumptions for options granted during the three months ended December 31, 2021 were as follows: Expected volatility 34 % Expected life (in years) 5 Expected dividend yield 3.49 % Risk free interest rate 1.22 % Grant date fair value per share $ 5.88 The aggregate intrinsic value of options exercised during the three months ended December 31, 2021 and 2020 was $123,000 and $120,000, respectively. At December 31, 2021, there were 176,670 unvested options with an aggregate grant date fair value of $844,000, all of which the Company assumes will vest. The aggregate intrinsic value of unvested options at December 31, 2021 was $568,000. There were 200 options vested during the three months ended December 31, 2021 with a total fair value of $1,000. At December 31, 2020, there were 158,572 unvested options with an aggregate grant date fair value of $567,000. There were 200 options that vested during the three months ended December 31, 2020. Additional information regarding options outstanding at December 31, 2021 is as follows: Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $5.86 - 6.00 4,000 $ 5.93 0.8 4,000 $ 5.93 0.8 9.00 26,000 9.00 1.8 26,000 9.00 1.8 10.26 - 10.71 57,875 10.57 3.2 57,875 10.57 3.2 15.67 - 19.13 92,300 16.52 7.5 40,980 16.04 5.9 26.50 - 27.25 43,016 27.13 7.8 17,596 27.13 7.8 28.23 - 29.69 125,050 28.81 8.2 40,200 29.69 5.8 31.80 39,080 31.80 6.8 24,000 31.80 6.8 387,321 $ 21.70 6.6 210,651 $ 18.80 4.8 The aggregate intrinsic value of options outstanding at December 31, 2021 and 2020 was $2.62 million and $2.88 million , respectively. As of December 31, 2021, unrecognized compensation cost related to unvested stock options was $844,000, which is expected to be recognized over a weighted average life of 2.42 years.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair value is defined under GAAP as the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. GAAP requires that valuation techniques maximize the use of observable inputs and minimize the use of unobservable inputs. GAAP also establishes a fair value hierarchy which prioritizes the valuation inputs into three broad levels. Based on the underlying inputs, each fair value measurement in its entirety is reported in one of three levels. These levels are: Level 1: Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2: Significant observable inputs other than quoted prices included within Level 1, such as quoted prices for similar (as opposed to identical) assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs other than quoted prices that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability based on the best information available in the circumstances. The Company's assets measured at fair value on a recurring basis consist of investment securities available for sale and investments in equity securities. The estimated fair values of MBS are based upon market prices of similar securities or observable inputs (Level 2). The estimated fair values of mutual funds are based upon quoted market prices (Level 1). The Company had no liabilities measured at fair value on a recurring basis at December 31, 2021 and September 30, 2021. The Company's assets measured at estimated fair value on a recurring basis at December 31, 2021 and September 30, 2021 were as follows (dollars in thousands): December 31, 2021 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 56,552 $ — $ 56,552 Investments in equity securities Mutual funds 946 — — 946 Total $ 946 $ 56,552 $ — $ 57,498 September 30, 2021 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 63,176 $ — $ 63,176 Investments in equity securities Mutual funds 955 — — 955 Total $ 955 $ 63,176 $ — $ 64,131 There were no transfers among Level 1, Level 2 and Level 3 during the three months ended December 31, 2021 and the year ended September 30, 2021. The Company may be required, from time to time, to measure certain assets and liabilities at fair value on a non-recurring basis in accordance with GAAP. These include assets that are measured at the lower of cost or market value that were recognized at fair value below cost at the end of the period. The Company uses the following methods and significant assumptions to estimate fair value on a non-recurring basis: Impaired Loans : The estimated fair value of impaired loans is calculated using the collateral value method or on a discounted cash flow basis. The specific reserve for collateral dependent impaired loans is based on the estimated fair value of the collateral less estimated costs to sell, if applicable. In some cases, adjustments are made to the appraised values due to various factors including age of the appraisal, age of the comparable collateral included in the appraisal and known changes in the market and in the underlying collateral. Such adjustments may be significant and typically result in a Level 3 classification of the inputs for determining fair value. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. Investment Securities Held to Maturity: The estimated fair value of investment securities held to maturity is based upon the assumptions market participants would use in pricing the investment security. Such assumptions include quoted market prices (Level 1), market prices of similar securities or observable inputs (Level 2) and unobservable inputs such as dealer quotes, discounted cash flows or similar techniques (Level 3). OREO and Other Repossessed Assets, net: OREO and other repossessed assets are recorded at estimated fair value less estimated costs to sell. Estimated fair value is generally determined by management based on a number of factors, including third-party appraisals of estimated fair value in an orderly sale. Estimated costs to sell are based on standard market factors. The valuation of OREO and other repossessed assets is subject to significant external and internal judgment (Level 3). The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at December 31, 2021 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 284 Commercial business loans — — 123 Total impaired loans — — 407 Investment securities – held to maturity: MBS - private label residential — 1 — OREO and other repossessed assets — — 157 Total $ — $ 1 $ 564 The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of December 31, 2021 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 407 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 157 Market approach Lower of appraised value or listing price less estimated selling costs NA The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at September 30, 2021 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 286 Commercial business loans — — 123 Total impaired loans — — 409 Investment securities – held to maturity: MBS - private label residential — 10 — OREO and other repossessed assets — — 157 Total $ — $ 10 $ 566 The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of September 30, 2021 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 409 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 157 Market approach Lower of appraised value or listing price less estimated selling costs NA GAAP requires disclosure of estimated fair values for certain financial instruments. Such estimates are subjective in nature, and significant judgment is required regarding the risk characteristics of various financial instruments at a discrete point in time. Therefore, such estimates could vary significantly if assumptions regarding uncertain factors were to change. In addition, as the Company normally intends to hold the majority of its financial instruments until maturity, it does not expect to realize many of the estimated amounts disclosed. The disclosures also do not include estimated fair value amounts for certain items which are not defined as financial instruments but for which may have significant value. The Company does not believe that it would be practicable to estimate a representative fair value for these types of items as of December 31, 2021 and September 30, 2021. Because GAAP excludes certain items from fair value disclosure requirements, any aggregation of the fair value amounts presented would not represent the underlying value of the Company. Additionally, in accordance with GAAP, the Company uses the exit price notion in calculating the fair values of financial instruments not measured at fair value on a recurring basis. The recorded amounts and estimated fair values of financial instruments were as follows as of December 31, 2021 and September 30, 2021 (dollars in thousands): December 31, 2021 Fair Value Measurements Using: Recorded Estimated Fair Value Financial assets Cash and cash equivalents $ 558,328 $ 558,328 $ 558,328 $ — $ — CDs held for investment 24,648 24,648 24,648 — — Investment securities 171,152 171,751 67,005 104,746 — Investments in equity securities 946 946 946 — — FHLB stock 2,103 2,103 2,103 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,700 3,790 3,790 — — Loans receivable, net 994,007 1,004,899 — — 1,004,899 Accrued interest receivable 3,938 3,938 3,938 — — Financial liabilities Certificates of deposit 132,155 133,005 — — 133,005 Accrued interest payable 124 124 124 — — September 30, 2021 Fair Value Measurements Using: Recorded Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 580,196 $ 580,196 $ 580,196 $ — $ — CDs held for investment 28,482 28,482 28,482 — — Investment securities 132,278 133,286 28,670 104,616 — Investments in equity securities 955 955 955 — — FHLB stock 2,103 2,103 2,103 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,217 3,290 3,290 — — Loans receivable, net 968,454 981,905 — — 981,905 Accrued interest receivable 3,745 3,745 3,745 — — Financial liabilities Certificates of deposit 134,129 135,178 — — 135,178 Accrued interest payable 134 134 134 — —

Revenue from Contracts with Cus

Revenue from Contracts with Customers Revenue from Contracts with Customers	3 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	REVENUE FROM CONTRACTS WITH CUSTOMERS ASC 606 applies to all contracts with customers to provide goods or services in the ordinary course of business, except for contracts that are specifically excluded from its scope. The majority of the Company's revenues are composed of interest income, deferred loan fee accretion, premium/discount accretion, gains on sales of loans and investments, BOLI net earnings, servicing income on loans sold and other loan fee income, which are not within the scope of ASC 606. Revenue reported as service charges on deposits, ATM and debit card interchange transaction fees, merchant services fees, non-deposit investment fees and escrow fees are within the scope of ASC 606. All of the Company's revenue from contracts with customers within the scope of ASC 60 6 is recognized in non-interest income with the exception of gains on sales of OREO and gains on sales/disposition of premises and equipment, which are included in non-interest expense. For the three months ended December 31, 2021, the Company recognized $913,000 in service charges on deposits, $1.3 million in ATM and debit card interchange fees, $78,000 in escrow fees, and $2,000 in fee income from non-deposit investment sales, all considered within the scope of ASC 606. For the three months ended December 31, 2020, the Company recognized $1.1 million in service charges on deposits, $1.2 million in ATM and debit card interchange fees, $105,000 in escrow fees, and $3,000 in fee income from non-deposit investment sales, all considered within the scope of ASC 606. If a contract is determined to be within the scope of ASC 606, the Company recognizes revenue when it satisfies its performance obligation. Descriptions of the Company's revenue-generating activities that are within the scope of ASC 606 are as follows: • Service Charges on Deposits: The Company earns fees from its deposit customers from a variety of deposit products and services. Non-transaction based fees such as account maintenance fees and monthly statement fees are considered to be provided to the customer under a day-to-day contract with ongoing renewals. Revenue for these non-transaction fees are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. Transaction-based fees such as non-sufficient fund charges, stop payment charges and wire fees are recognized at the time the transaction is executed, as the contract duration does not extend beyond the service performed. • ATM and Debit Card Interchange Transaction Fees: The Company earns fees from cardholder transactions conducted through third-party payment network providers which consist of interchange fees earned from the payment networks as a debit card issuer. These fees are recognized when the transaction occurs, but may settle on a daily or monthly basis. • Escrow Fees: The Company earns fees from real estate escrow contracts with customers. The Company receives and disburses money and/or property according to the customer's contract. Fees are recognized when the escrow contract closes. • Fee Income from Non-deposit Investment Sales: The Company earns fees from contracts with customers for investment activities. Revenues are generally recognized on a monthly basis and are generally based on a percentage of the customer's assets under management or based on investment solutions that are implemented for the customer.

Summary Of Significant Accoun_2

Summary Of Significant Accounting Policies (Policies)	3 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation:  The accompanying unaudited consolidated financial statements of Timberland Bancorp, Inc. and its wholly-owned subsidiary, Timberland Bank (the "Bank") (collectively, "the Company") were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with instructions for Form 10-Q and, therefore, do not include all disclosures necessary for a complete presentation of consolidated financial condition, results of operations, and cash flows in conformity with GAAP. However, all adjustments which are, in the opinion of management, necessary for a fair presentation of the interim consolidated financial statements have been included.  All such adjustments are of a normal recurring nature. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended September 30, 2021 (“2021 Form 10-K”).  The unaudited consolidated results of operations for the three months ended December 31, 2021 are not necessarily indicative of the results that may be expected for the entire fiscal year ending September 30, 2022.
Principles of Consolidation	Principles of Consolidation:  The unaudited consolidated financial statements include the accounts of the Company and the Bank’s wholly-owned subsidiary, Timberland Service Corporation.   All significant inter-company transactions and balances have been eliminated in consolidation.
Operating Segment	Operating Segment:  The Company has one reportable operating segment which is defined as community banking in western Washington under the operating name, "Timberland Bank."
Use of Estimates	The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities, as of the date of the consolidated balance sheets, and the reported amounts of income and expenses during the reporting period.  Actual results could differ from those estimates.
Reclassification	Certain prior period amounts have been reclassified to conform to the December 31, 2021 presentation with no change to previously reported net income or total shareholders’ equity.
Revenue from Contract with Customer	ASC 606 applies to all contracts with customers to provide goods or services in the ordinary course of business, except for contracts that are specifically excluded from its scope. The majority of the Company's revenues are composed of interest income, deferred loan fee accretion, premium/discount accretion, gains on sales of loans and investments, BOLI net earnings, servicing income on loans sold and other loan fee income, which are not within the scope of ASC 606. Revenue reported as service charges on deposits, ATM and debit card interchange transaction fees, merchant services fees, non-deposit investment fees and escrow fees are within the scope of ASC 606. All of the Company's revenue from contracts with customers within the scope of ASC 60 6 is recognized in non-interest income with the exception of gains on sales of OREO and gains on sales/disposition of premises and equipment, which are included in non-interest expense. For the three months ended December 31, 2021, the Company recognized $913,000 in service charges on deposits, $1.3 million in ATM and debit card interchange fees, $78,000 in escrow fees, and $2,000 in fee income from non-deposit investment sales, all considered within the scope of ASC 606. For the three months ended December 31, 2020, the Company recognized $1.1 million in service charges on deposits, $1.2 million in ATM and debit card interchange fees, $105,000 in escrow fees, and $3,000 in fee income from non-deposit investment sales, all considered within the scope of ASC 606. If a contract is determined to be within the scope of ASC 606, the Company recognizes revenue when it satisfies its performance obligation. Descriptions of the Company's revenue-generating activities that are within the scope of ASC 606 are as follows: • Service Charges on Deposits: The Company earns fees from its deposit customers from a variety of deposit products and services. Non-transaction based fees such as account maintenance fees and monthly statement fees are considered to be provided to the customer under a day-to-day contract with ongoing renewals. Revenue for these non-transaction fees are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. Transaction-based fees such as non-sufficient fund charges, stop payment charges and wire fees are recognized at the time the transaction is executed, as the contract duration does not extend beyond the service performed. • ATM and Debit Card Interchange Transaction Fees: The Company earns fees from cardholder transactions conducted through third-party payment network providers which consist of interchange fees earned from the payment networks as a debit card issuer. These fees are recognized when the transaction occurs, but may settle on a daily or monthly basis. • Escrow Fees: The Company earns fees from real estate escrow contracts with customers. The Company receives and disburses money and/or property according to the customer's contract. Fees are recognized when the escrow contract closes. • Fee Income from Non-deposit Investment Sales: The Company earns fees from contracts with customers for investment activities. Revenues are generally recognized on a monthly basis and are generally based on a percentage of the customer's assets under management or based on investment solutions that are implemented for the customer.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Dec. 31, 2021
Investments [Abstract]
Marketable Securities	Held to maturity and available for sale investment securities have been classified according to management’s intent and were as follows as of December 31, 2021 and September 30, 2021 (dollars in thousands): Amortized Gross Gross Estimated December 31, 2021 Held to maturity U.S. Treasury and U.S. government agency securities $ 67,195 $ 95 $ (285) $ 67,005 Mortgage-backed securities ("MBS"): U.S. government agencies 23,550 781 (192) 24,139 Private label residential 23,355 292 (94) 23,553 Bank issued trust preferred securities 500 2 — 502 Total $ 114,600 $ 1,170 $ (571) $ 115,199 Available for sale MBS: U.S. government agencies $ 56,481 $ 180 $ (109) $ 56,552 Total $ 56,481 $ 180 $ (109) $ 56,552 September 30, 2021 Held to maturity U.S. Treasury and U.S. government agency securities $ 28,760 $ 8 $ (99) $ 28,669 MBS: U.S. government agencies 25,913 936 (122) 26,727 Private label residential 13,929 302 (23) 14,208 Bank issued trust preferred securities 500 5 — 505 Total $ 69,102 $ 1,251 $ (244) $ 70,109 Available for sale MBS: U.S. government agencies $ 63,080 $ 210 $ (114) $ 63,176 Total $ 63,080 $ 210 $ (114) $ 63,176
Unrealized Gain (Loss) on Investments	Held to maturity and available for sale investment securities with unrealized losses were as follows as of December 31, 2021 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Gross Quantity Estimated Gross Quantity Estimated Gross Held to maturity MBS: U.S. government agencies $ 40,171 $ (285) 10 $ — $ — — $ 40,171 $ (285) Private label residential 8,213 (192) 5 14 — 3 8,227 (192) U.S. Treasury and U.S. government agency securities 17,041 (94) 9 1 — 1 17,042 (94) Total $ 65,425 $ (571) 24 $ 15 $ — 4 $ 65,440 $ (571) Available for sale MBS: U.S. government agencies $ 9,941 $ (66) 10 $ 13,439 $ (43) 7 $ 23,380 $ (109) Total $ 9,941 $ (66) 10 $ 13,439 $ (43) 7 $ 23,380 $ (109) Held to maturity and available for sale investment securities with unrealized losses were as follows as of September 30, 2021 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Gross Quantity Estimated Gross Quantity Estimated Gross Held to maturity MBS: U.S. government agencies $ 8,091 $ (122) 5 $ 15 $ — 3 $ 8,106 $ (122) Private label residential 9,712 (23) 4 1 — 1 9,713 (23) U.S. Treasury and U.S. government agency securities 18,795 (99) 5 — — — 18,795 (99) Total $ 36,598 $ (244) 14 $ 16 $ — 4 $ 36,614 $ (244) Available for sale MBS: U.S. government agencies $ 20,146 $ (103) 13 $ 5,491 $ (11) 3 $ 25,637 $ (114) Total $ 20,146 $ (103) 13 $ 5,491 $ (11) 3 $ 25,637 $ (114)
Schedule of Significant Inputs Utilized to Measure Estimate of Credit Loss Component on OTTI Securities	The following table presents a summary of the significant inputs utilized to measure management’s estimates of the credit loss component on OTTI securities as of December 31, 2021 and 2020: Range Weighted Minimum Maximum Average December 31, 2021 Constant prepayment rate 6.00 % 15.00 % 12.50 % Collateral default rate 1.56 % 22.67 % 12.14 % Loss severity rate — % 13.95 % 3.30 % December 31, 2020 Constant prepayment rate 6.00 % 15.00 % 9.23 % Collateral default rate 1.50 % 23.73 % 13.58 % Loss severity rate — % 10.07 % 3.44 %
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table presents the OTTI recoveries for the three months ended December 31, 2021 and 2020 (dollars in thousands): Three Months Ended Three Months Ended Held To Held To Total recoveries $ 8 $ 5 Net recoveries recognized in earnings (1) $ 8 $ 5 _________________ (1) Represents OTTI related to credit losses. The following table presents a roll forward of the credit loss component of held to maturity and available for sale debt securities that have been written down for OTTI with the credit loss component recognized in earnings for the three months ended December 31, 2021 and 2020 (dollars in thousands): Three Months Ended 2021 2020 Beginning balance of credit loss $ 853 $ 885 Subtractions: Net realized gain (losses) previously recorded as credit losses 1 (3) Recovery of prior credit loss (4) (5) Ending balance of credit loss $ 850 $ 877
Schedule of Contractual Maturities of Debt Securities	The contractual maturities of debt securities at December 31, 2021 were as follows (dollars in thousands). Expected maturities may differ from scheduled maturities due to the prepayment of principal or call provisions. Held to Maturity Available for Sale Amortized Estimated Amortized Estimated Due within one year $ — $ — $ 744 $ 743 Due after one year to five years 35,148 35,214 3,710 3,709 Due after five years to ten years 51,072 51,272 13,432 13,454 Due after ten years 28,380 28,713 38,595 38,646 Total $ 114,600 $ 115,199 $ 56,481 $ 56,552

Loans Receivable And Allowanc_2

Loans Receivable And Allowance For Loan Losses (Tables)	3 Months Ended
	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Schedule of Loans receivable and Loans held for sale	Loans receivable by portfolio segment consisted of the following at December 31, 2021 and September 30, 2021 (dollars in thousands): December 31, September 30, Amount Percent Amount Percent Mortgage loans: One- to four-family (1) $ 129,151 11.6 % $ 119,935 11.1 % Multi-family 84,180 7.5 87,563 8.1 Commercial 497,361 44.5 470,650 43.5 Construction - custom and owner/builder 116,267 10.4 109,152 10.1 Construction - speculative one- to four-family 18,255 1.6 17,813 1.6 Construction - commercial 42,611 3.8 43,365 4.0 Construction - multi-family 54,710 4.9 52,071 4.8 Construction - land development 13,680 1.2 10,804 1.0 Land 18,568 1.7 19,936 1.8 Total mortgage loans 974,783 87.2 931,289 86.0 Consumer loans: Home equity and second mortgage 34,375 3.1 32,988 3.1 Other 2,462 0.2 2,512 0.2 Total consumer loans 36,837 3.3 35,500 3.3 Commercial loans: Commercial business 85,006 7.6 74,579 6.9 U.S. Small Business Administration ("SBA") Paycheck Protection Program ("PPP") loans 21,397 1.9 40,922 3.8 Total commercial loans 106,403 9.5 % 115,501 10.7 Total loans receivable 1,118,023 100.0 % 1,082,290 100.0 % Less: Undisbursed portion of construction loans in process 106,009 95,224 Deferred loan origination fees, net 4,539 5,143 Allowance for loan losses 13,468 13,469 Subtotal 124,016 113,836 Loans receivable, net $ 994,007 $ 968,454 _____________________________ (1) Does not include one- to four-family loans held for sale totaling $3,700 and $3,217 at December 31, 2021 and September 30, 2021, respectively.
Schedule of Allowance for Loan Losses	The following tables set forth information for the three months ended December 31, 2021 and 2020 regarding activity in the allowance for loan losses by portfolio segment (dollars in thousands): Three Months Ended December 31, 2021 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,154 $ 83 $ — $ — $ 1,237 Multi-family 765 (17) — — 748 Commercial 6,813 (6) — — 6,807 Construction – custom and owner/builder 644 27 — — 671 Construction – speculative one- to four-family 188 (35) — — 153 Construction – commercial 784 (191) — — 593 Construction – multi-family 436 24 — — 460 Construction – land development 124 33 — — 157 Land 470 (35) — — 435 Consumer loans: Home equity and second mortgage 528 4 — — 532 Other 50 (1) (1) — 48 Commercial business loans 1,513 114 — — 1,627 Total $ 13,469 $ — $ (1) $ — $ 13,468 Three Months Ended December 31, 2020 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,163 $ (28) $ — $ — $ 1,135 Multi-family 718 39 — — 757 Commercial 7,144 (8) — — 7,136 Construction – custom and owner/builder 832 (62) — — 770 Construction – speculative one- to four-family 158 24 — — 182 Construction – commercial 420 138 — — 558 Construction – multi-family 238 (52) — — 186 Construction – land development 133 (10) — — 123 Land 572 (103) — 5 474 Consumer loans: Home equity and second mortgage 593 12 — — 605 Other 71 (18) — 4 57 Commercial business loans 1,372 68 — 9 1,449 Total $ 13,414 $ — $ — $ 18 $ 13,432
Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in the allowance for loan losses	The following tables present information on the loans evaluated individually and collectively for impairment in the allowance for loan losses by portfolio segment at December 31, 2021 and September 30, 2021 (dollars in thousands): Allowance for Loan Losses Recorded Investment in Loans Individually Collectively Total Individually Collectively Total December 31, 2021 Mortgage loans: One- to four-family $ — $ 1,237 $ 1,237 $ 582 $ 128,569 $ 129,151 Multi-family — 748 748 — 84,180 84,180 Commercial — 6,807 6,807 3,037 494,324 497,361 Construction – custom and owner/builder — 671 671 — 63,748 63,748 Construction – speculative one- to four-family — 153 153 — 8,760 8,760 Construction – commercial — 593 593 — 32,290 32,290 Construction – multi-family — 460 460 — 27,122 27,122 Construction – land development — 157 157 — 7,594 7,594 Land 78 357 435 675 17,893 18,568 Consumer loans: Home equity and second mortgage — 532 532 456 33,919 34,375 Other — 48 48 5 2,457 2,462 Commercial business loans 176 1,451 1,627 459 84,547 85,006 SBA PPP loans — — — — 21,397 21,397 Total $ 254 $ 13,214 $ 13,468 $ 5,214 $ 1,006,800 $ 1,012,014 September 30, 2021 Mortgage loans: One- to four-family $ — $ 1,154 $ 1,154 $ 407 $ 119,528 $ 119,935 Multi-family — 765 765 — 87,563 87,563 Commercial — 6,813 6,813 3,143 467,507 470,650 Construction – custom and owner/builder — 644 644 — 61,003 61,003 Construction – speculative one- to four-family — 188 188 — 9,657 9,657 Construction – commercial — 784 784 — 38,931 38,931 Construction – multi-family — 436 436 — 22,888 22,888 Construction – land development — 124 124 — 5,502 5,502 Land 76 394 470 683 19,253 19,936 Consumer loans: Home equity and second mortgage — 528 528 516 32,472 32,988 Other — 50 50 17 2,495 2,512 Commercial business loans 171 1,342 1,513 458 74,121 74,579 SBA PPP loans — — — — 40,922 40,922 Total $ 247 $ 13,222 $ 13,469 $ 5,224 $ 981,842 $ 987,066
Past Due Status of Loans Receivable	The following tables present an analysis of loans by aging category and portfolio segment at December 31, 2021 and September 30, 2021 (dollars in thousands): 30–59 60-89 Non- Past Due Total Current Total December 31, 2021 Mortgage loans: One- to four-family $ 23 $ — $ 582 $ — $ 605 $ 128,546 $ 129,151 Multi-family — — — — — 84,180 84,180 Commercial 34 183 675 — 892 496,469 497,361 Construction – custom and owner/builder — 143 — — 143 63,605 63,748 Construction – speculative one- to four-family — — — — — 8,760 8,760 Construction – commercial — — — — — 32,290 32,290 Construction – multi-family — — — — — 27,122 27,122 Construction – land development — — — — — 7,594 7,594 Land — — 676 — 676 17,892 18,568 Consumer loans: Home equity and second mortgage — — 456 — 456 33,919 34,375 Other — — 5 — 5 2,457 2,462 Commercial business loans — — 459 — 459 84,547 85,006 SBA PPP loans — — — — — 21,397 21,397 Total $ 57 $ 326 $ 2,853 $ — $ 3,236 $ 1,008,778 $ 1,012,014 September 30, 2021 Mortgage loans: One- to four-family $ — $ 180 $ 407 $ — $ 587 $ 119,348 $ 119,935 Multi-family — — — — — 87,563 87,563 Commercial — — 773 — 773 469,877 470,650 Construction – custom and owner/builder — — — — — 61,003 61,003 Construction – speculative one- to four-family — — — — — 9,657 9,657 Construction – commercial — — — — — 38,931 38,931 Construction – multi-family — — — — — 22,888 22,888 Construction – land development — — — — — 5,502 5,502 Land — — 683 — 683 19,253 19,936 Consumer loans: Home equity and second mortgage — — 516 — 516 32,472 32,988 Other — — 17 — 17 2,495 2,512 Commercial business loans 5 458 463 74,116 74,579 SBA PPP loans — — — — — 40,922 40,922 Total $ 5 $ 180 $ 2,854 $ — $ 3,039 $ 984,027 $ 987,066 ______________________ (1) Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual.
Financing Receivable Credit Quality Indicators	The following tables present an analysis of loans by credit quality indicator and portfolio segment at December 31, 2021 and September 30, 2021 (dollars in thousands): Loan Grades December 31, 2021 Pass Watch Special Substandard Total Mortgage loans: One- to four-family $ 127,984 $ 47 $ 533 $ 587 $ 129,151 Multi-family 84,180 — — — 84,180 Commercial 483,057 5,326 2,919 6,059 497,361 Construction – custom and owner/builder 62,024 1,724 — — 63,748 Construction – speculative one- to four-family 8,760 — — — 8,760 Construction – commercial 30,773 — 1,517 — 32,290 Construction – multi-family 27,122 — — — 27,122 Construction – land development 7,562 — — 32 7,594 Land 17,288 549 — 731 18,568 Consumer loans: Home equity and second mortgage 33,635 145 — 595 34,375 Other 2,391 66 — 5 2,462 Commercial business loans 84,473 — 33 500 85,006 SBA PPP loans 21,397 — — — 21,397 Total $ 990,646 $ 7,857 $ 5,002 $ 8,509 $ 1,012,014 September 30, 2021 Mortgage loans: One- to four-family $ 118,857 $ 129 $ 537 $ 412 $ 119,935 Multi-family 87,563 — — — 87,563 Commercial 456,188 10,285 2,921 1,256 470,650 Construction – custom and owner/builder 59,699 1,304 — — 61,003 Construction – speculative one- to four-family 9,657 — — — 9,657 Construction – commercial 37,414 — 1,517 — 38,931 Construction – multi-family 22,888 — — — 22,888 Construction – land development 5,467 — — 35 5,502 Land 18,648 558 — 730 19,936 Consumer loans: Home equity and second mortgage 32,190 145 — 653 32,988 Other 2,465 30 — 17 2,512 Commercial business loans 73,992 49 37 501 74,579 SBA PPP loans 40,922 — — — 40,922 Total $ 965,950 $ 12,500 $ 5,012 $ 3,604 $ 987,066
Impaired Loans Receivable	The following table is a summary of information related to impaired loans by portfolio segment as of December 31, 2021 and for the three months then ended (dollars in thousands): Recorded Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Year to Date ("YTD") Average Recorded Investment (1) YTD Interest Income Recognized (1) YTD Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 582 $ 625 $ — $ 495 $ 8 $ 8 Commercial 3,037 3,037 — 3,090 40 31 Land 313 313 — 317 — — Consumer loans: Home equity and second mortgage 456 456 — 486 — — Other 5 5 — 11 — — Commercial business loans 160 163 — 163 — — Subtotal 4,553 4,599 — 4,562 48 39 With an allowance recorded: Mortgage loans: Land 362 362 78 362 — — Commercial business loans 299 299 176 297 — — Subtotal 661 661 254 659 — — Total: Mortgage loans: One- to four-family 582 625 — 495 8 8 Commercial 3,037 3,037 — 3,090 40 31 Land 675 675 78 679 — — Consumer loans: Home equity and second mortgage 456 456 — 486 — — Other 5 5 — 11 — — Commercial business loans 459 462 176 460 — — Total $ 5,214 $ 5,260 $ 254 $ 5,221 $ 48 $ 39 ______________________________________________ (1) For the three months ended December 31, 2021. Recorded Unpaid Principal Balance (Loan Balance Plus Charge Off) Related YTD YTD Interest YTD Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 407 $ 450 $ — $ 655 $ 58 $ 52 Commercial 3,143 3,143 — 3,039 159 127 Land 321 321 — 292 2 2 Consumer loans: Home equity and second mortgage 516 516 — 552 1 1 Other 17 17 — 12 — — Commercial business loans 164 168 — 200 — — Subtotal 4,568 4,615 — 4,750 220 182 With an allowance recorded: Mortgage loans: One- to four-family — — — 97 — — Land 362 362 76 72 — — Commercial business loans 294 294 171 285 — — Subtotal 656 656 247 454 — — Total Mortgage loans: One- to four-family 407 450 — 752 58 52 Commercial 3,143 3,143 — 3,039 159 127 Land 683 683 76 364 2 2 Consumer loans: Home equity and second mortgage 516 516 — 552 1 1 Other 17 17 — 12 — — Commercial business loans 458 462 171 485 — — Total $ 5,224 $ 5,271 $ 247 $ 5,204 $ 220 $ 182 _____________________________________________ (1) For the year ended September 30, 2021.
Schedule Of COVID Loan Modifications	The following table set forth information with respect to COVID-19 loan modifications on deferral status at September 30, 2021 (dollars in thousands): COVID-19 Loan Modifications September 30, 2021 Mortgage loans Number Balance Percent One- to four-family 1 $ 323 100.0 % Total COVID-19 Modifications 1 $ 323 100.0 %
Schedule of Troubled Debt Restructured Loans by Interest Accrual Status	The following tables set forth information with respect to the Company’s TDRs by interest accrual status as of December 31, 2021 and September 30, 2021 (dollars in thousands): December 31, 2021 Accruing Non- Total Mortgage loans: Commercial $ 2,361 $ — $ 2,361 Land — 116 116 Consumer loans: Home equity and second mortgage — 62 62 Total $ 2,361 $ 178 $ 2,539 September 30, 2021 Accruing Non- Total Mortgage loans: Commercial $ 2,371 $ — $ 2,371 Land — 119 119 Consumer loans: Home equity and second mortgage — 63 63 Total $ 2,371 $ 182 $ 2,553

Leases (Tables)

Leases (Tables)	3 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Lease, Cost	The components of lease cost (included in the premises and equipment expense category in the consolidated statements of income) are as follows for the three months ended December 31, 2021 and 2020 (dollars in thousands): Three Months Ended December 31, 2021 Three Months Ended December 31, 2020 Lease cost: Operating lease cost $ 94 $ 93 Short-term lease cost — — Total lease cost $ 94 $ 93 The following table provides supplemental information related to operating leases at or for the three months ended December 31, 2021 and the year ended September 30, 2021 (dollars in thousands): At or For Three Months Ended December 31, 2021 At or For the Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 87 $ 327 Weighted average remaining lease term-operating leases 8.2 years 8.4 years Weighted average discount rate-operating leases 2.24 % 2.24 %
Lessee, Operating Lease, Liability, Maturity	Maturities of operating lease liabilities at December 31, 2021 for future fiscal years are as follows (dollars in thousands): Remainder of 2022 $ 255 2023 310 2024 313 2025 317 2026 284 Thereafter 1,038 Total lease payments 2,517 Less imputed interest 232 Total $ 2,285

Net Income Per Common Share (Ta

Net Income Per Common Share (Tables)	3 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Schedule of Earnings per Share	Information regarding the calculation of basic and diluted net income per common share for the three months ended December 31, 2021 and 2020 is as follows (dollars in thousands, except per share amounts): Three Months Ended December 31, 2021 2020 Basic net income per common share computation Numerator – net income $ 5,485 $ 7,290 Denominator – weighted average common shares outstanding 8,356,066 8,313,493 Basic net income per common share $ 0.66 $ 0.88 Diluted net income per common share computation Numerator – net income $ 5,485 $ 7,290 Denominator – weighted average common shares outstanding 8,356,066 8,313,493 Effect of dilutive stock options (1) 92,834 99,251 Weighted average common shares outstanding - assuming dilution 8,448,900 8,412,744 Diluted net income per common share $ 0.65 $ 0.87 ____________________________________________

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The changes in accumulated other comprehensive income (loss) ("AOCI") by component during the three months ended December 31, 2021 and 2020 are as follows (dollars in thousands): Three Months Ended December 31, 2021 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ 75 $ (16) $ 59 Other comprehensive loss (18) 1 (17) Balance of AOCI at the end of period $ 57 $ (15) $ 42 Three Months Ended December 31, 2020 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ 87 $ (26) $ 61 Other comprehensive loss (17) — (17) Balance of AOCI at the end of period $ 70 $ (26) $ 44 __________________________ (1) All amounts are net of income taxes.

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	3 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	Stock option activity for the three months ended December 31, 2021 and 2020 is summarized as follows: Three Months Ended December 31, 2021 Three Months Ended December 31, 2020 Number of Shares Weighted Number of Shares Weighted Options outstanding, beginning of period 406,815 $ 21.62 395,349 $ 18.45 Exercised (8,900) 14.63 (9,900) 9.70 Granted 1,000 27.25 1,500 19.13 Forfeited (11,594) 25.28 (2,320) 26.69 Options outstanding, end of period 387,321 $ 21.70 384,629 $ 18.62
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The weighted average assumptions for options granted during the three months ended December 31, 2021 were as follows: Expected volatility 34 % Expected life (in years) 5 Expected dividend yield 3.49 % Risk free interest rate 1.22 % Grant date fair value per share $ 5.88
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	Additional information regarding options outstanding at December 31, 2021 is as follows: Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $5.86 - 6.00 4,000 $ 5.93 0.8 4,000 $ 5.93 0.8 9.00 26,000 9.00 1.8 26,000 9.00 1.8 10.26 - 10.71 57,875 10.57 3.2 57,875 10.57 3.2 15.67 - 19.13 92,300 16.52 7.5 40,980 16.04 5.9 26.50 - 27.25 43,016 27.13 7.8 17,596 27.13 7.8 28.23 - 29.69 125,050 28.81 8.2 40,200 29.69 5.8 31.80 39,080 31.80 6.8 24,000 31.80 6.8 387,321 $ 21.70 6.6 210,651 $ 18.80 4.8

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis	The Company's assets measured at estimated fair value on a recurring basis at December 31, 2021 and September 30, 2021 were as follows (dollars in thousands): December 31, 2021 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 56,552 $ — $ 56,552 Investments in equity securities Mutual funds 946 — — 946 Total $ 946 $ 56,552 $ — $ 57,498 September 30, 2021 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 63,176 $ — $ 63,176 Investments in equity securities Mutual funds 955 — — 955 Total $ 955 $ 63,176 $ — $ 64,131
Balances of Assets Measured at Estimated Fair Value, Nonrecurring Basis	The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at December 31, 2021 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 284 Commercial business loans — — 123 Total impaired loans — — 407 Investment securities – held to maturity: MBS - private label residential — 1 — OREO and other repossessed assets — — 157 Total $ — $ 1 $ 564 The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at September 30, 2021 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 286 Commercial business loans — — 123 Total impaired loans — — 409 Investment securities – held to maturity: MBS - private label residential — 10 — OREO and other repossessed assets — — 157 Total $ — $ 10 $ 566
Level 3 Fair Value Measurements, Nonrecurring Basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of December 31, 2021 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 407 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 157 Market approach Lower of appraised value or listing price less estimated selling costs NA The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of September 30, 2021 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 409 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 157 Market approach Lower of appraised value or listing price less estimated selling costs NA
Balances of Assets and Liabilities Measured at Estimated Fair Value, Recurring Basis	The recorded amounts and estimated fair values of financial instruments were as follows as of December 31, 2021 and September 30, 2021 (dollars in thousands): December 31, 2021 Fair Value Measurements Using: Recorded Estimated Fair Value Financial assets Cash and cash equivalents $ 558,328 $ 558,328 $ 558,328 $ — $ — CDs held for investment 24,648 24,648 24,648 — — Investment securities 171,152 171,751 67,005 104,746 — Investments in equity securities 946 946 946 — — FHLB stock 2,103 2,103 2,103 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,700 3,790 3,790 — — Loans receivable, net 994,007 1,004,899 — — 1,004,899 Accrued interest receivable 3,938 3,938 3,938 — — Financial liabilities Certificates of deposit 132,155 133,005 — — 133,005 Accrued interest payable 124 124 124 — — September 30, 2021 Fair Value Measurements Using: Recorded Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 580,196 $ 580,196 $ 580,196 $ — $ — CDs held for investment 28,482 28,482 28,482 — — Investment securities 132,278 133,286 28,670 104,616 — Investments in equity securities 955 955 955 — — FHLB stock 2,103 2,103 2,103 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,217 3,290 3,290 — — Loans receivable, net 968,454 981,905 — — 981,905 Accrued interest receivable 3,745 3,745 3,745 — — Financial liabilities Certificates of deposit 134,129 135,178 — — 135,178 Accrued interest payable 134 134 134 — —

Summary Of Significant Accoun_3

Summary Of Significant Accounting Policies (Details)	3 Months Ended
	Dec. 31, 2021segment
Accounting Policies [Abstract]
Number of operating segments	1

Investment Securities_ Marketab

Investment Securities: Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Held to maturity
Amortized Cost	$ 114,600	$ 69,102
Gross Unrealized Gains	1,170	1,251
Gross Unrealized Losses	(571)	(244)
Estimated Fair Value	115,199	70,109
Available for sale
Total	56,481
Estimated Fair Value	57,498	64,131
Mortgage-backed Securities, U.S. government agencies
Held to maturity
Amortized Cost	23,550	25,913
Gross Unrealized Gains	781	936
Gross Unrealized Losses	(192)	(122)
Estimated Fair Value	24,139	26,727
Available for sale
Total	56,481	63,080
Gross Unrealized Gains	180	210
Gross Unrealized Losses	(109)	(114)
Estimated Fair Value	56,552	63,176
Mortgage-backed Securities, Private label residential
Held to maturity
Amortized Cost	23,355	13,929
Gross Unrealized Gains	292	302
Gross Unrealized Losses	(94)	(23)
Estimated Fair Value	23,553	14,208
Private label residential
Held to maturity
Amortized Cost	67,195	28,760
Gross Unrealized Gains	95	8
Gross Unrealized Losses	(285)	(99)
Estimated Fair Value	67,005	28,669
Bank issued trust preferred securities
Held to maturity
Amortized Cost	500	500
Gross Unrealized Gains	2	5
Gross Unrealized Losses	0	0
Estimated Fair Value	$ 502	$ 505

Investment Securities_ Unrealiz

Investment Securities: Unrealized Gain (Loss) on Investments (Details) $ in Thousands	Dec. 31, 2021USD ($)security	Sep. 30, 2021USD ($)security
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 65,425	$ 36,598
Held to maturity, 12 Months or Longer, Estimated Fair Value	15	16
Held to maturity, Total, Estimated Fair Value	65,440	36,614
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(571)	(244)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	0	0
Held to maturity, Total, Gross Unrealized Losses	$ (571)	$ (244)
Held to maturity, Less Than 12 Months, Quantity | security	24	14
Held to maturity, 12 Months or Longer, Quantity | security	4	4
Available-for-sale Securities, Fair Value:
Available for sale, Less Than 12 Months, Estimated Fair Value	$ 9,941	$ 20,146
Available for sale, 12 Months or Longer, Estimated Fair Value	13,439	5,491
Available for sale, Total, Estimated Fair Value	23,380	25,637
Available-for-sale Securities, Gross Unrealized Losses:
Available for sale, Less Than 12 Months, Gross Unrealized Losses	(66)	(103)
Available for sale, 12 Months or Longer, Gross Unrealized Losses	(43)	(11)
Available for sale, Total, Gross Unrealized Losses	$ (109)	$ (114)
Available-for-sale, Less than 12 Months, Quantity | security	10	13
Available-for-sale, 12 Months or Longer, Quantity | security	7	3
Mortgage-backed Securities, U.S. government agencies
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 40,171	$ 18,795
Held to maturity, 12 Months or Longer, Estimated Fair Value	0	0
Held to maturity, Total, Estimated Fair Value	40,171	18,795
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(285)	(99)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	0	0
Held to maturity, Total, Gross Unrealized Losses	$ (285)	$ (99)
Held to maturity, Less Than 12 Months, Quantity | security	10	5
Held to maturity, 12 Months or Longer, Quantity | security	0	0
Available-for-sale Securities, Fair Value:
Available for sale, Less Than 12 Months, Estimated Fair Value	$ 9,941	$ 20,146
Available for sale, 12 Months or Longer, Estimated Fair Value	13,439	5,491
Available for sale, Total, Estimated Fair Value	23,380	25,637
Available-for-sale Securities, Gross Unrealized Losses:
Available for sale, Less Than 12 Months, Gross Unrealized Losses	(66)	(103)
Available for sale, 12 Months or Longer, Gross Unrealized Losses	(43)	(11)
Available for sale, Total, Gross Unrealized Losses	$ (109)	$ (114)
Available-for-sale, Less than 12 Months, Quantity | security	10	13
Available-for-sale, 12 Months or Longer, Quantity | security	7	3
Mortgage-backed Securities, Private label residential
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 8,213	$ 8,091
Held to maturity, 12 Months or Longer, Estimated Fair Value	14	15
Held to maturity, Total, Estimated Fair Value	8,227	8,106
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(192)	(122)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	0	0
Held to maturity, Total, Gross Unrealized Losses	$ (192)	$ (122)
Held to maturity, Less Than 12 Months, Quantity | security	5	5
Held to maturity, 12 Months or Longer, Quantity | security	3	3
Private label residential
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 17,041
Held to maturity, 12 Months or Longer, Estimated Fair Value	1
Held to maturity, Total, Estimated Fair Value	17,042
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(94)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	0
Held to maturity, Total, Gross Unrealized Losses	$ (94)
Held to maturity, Less Than 12 Months, Quantity | security	9
Held to maturity, 12 Months or Longer, Quantity | security	1
Bank issued trust preferred securities
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value		$ 9,712
Held to maturity, 12 Months or Longer, Estimated Fair Value		1
Held to maturity, Total, Estimated Fair Value		9,713
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses		(23)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses		0
Held to maturity, Total, Gross Unrealized Losses		$ (23)
Held to maturity, Less Than 12 Months, Quantity | security		4
Held to maturity, 12 Months or Longer, Quantity | security		1

Investment Securities_ Schedule

Investment Securities: Schedule of significant inputs utilized to measure management's estimate of the credit loss component on OTTI securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Net recoveries on investment securities	$ (8)	$ (5)
Held-to-maturity Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Recoveries (other than temporary impairment OTTI) on investment securities	8	5
Net recoveries on investment securities	$ 8	$ 5
Minimum
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	6.00%	6.00%
OTTI significant inputs - Collateral default rate	1.56%	1.50%
OTTI significant inputs - Loss severity rate	0.00%	0.00%
Maximum
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	15.00%	15.00%
OTTI significant inputs - Collateral default rate	22.67%	23.73%
OTTI significant inputs - Loss severity rate	13.95%	10.07%
Weighted Average
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	12.50%	9.23%
OTTI significant inputs - Collateral default rate	12.14%	13.58%
OTTI significant inputs - Loss severity rate	3.30%	3.44%

Investment Securities_ Other th

Investment Securities: Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance of credit loss	$ 853	$ 885
Net realized gain (losses) previously recorded as credit losses	1	(3)
Recovery of prior credit loss	(4)	(5)
Ending balance of credit loss	$ 850	$ 877

Investment Securities_ Narrativ

Investment Securities: Narrative-Realized Gains (Losses) (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2021USD ($)security	Dec. 31, 2020USD ($)security	Sep. 30, 2021USD ($)
Investments [Abstract]
Loss on sale of securities	$ 3	$ 3
Held-to-maturity securities, realized loss, number of securities | security	15	15
Security owned and pledged as collateral	$ 89,580		$ 97,600

Investment Securities_ Schedu_2

Investment Securities: Schedule of Contractual maturities of debt securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Held-to-maturity Securities, Amortized Cost:
Due within one year	$ 0
Due after one year to five years	35,148
Due after five years to ten years	51,072
Due after ten years	28,380
Total	114,600	$ 69,102	[1]
Held-to-maturity Securities, Estimated Fair Value:
Due within one year	0
Due after one year to five years	35,214
Due after five years to ten years	51,272
Due after ten years	28,713
Total	115,199	$ 70,109
Available-for-sale Securities, Amortized Cost:
Due within one year	744
Due after one year to five years	3,710
Due after five years to ten years	13,432
Due after ten years	38,595
Total	56,481
Available-for-sale Securities, Estimated Fair Value:
Due within one year	743
Due after one year to five years	3,709
Due after five years to ten years	13,454
Due after ten years	38,646
Total	$ 56,552
[1]	Derived from audited consolidated financial statements.

Goodwill and CDI - Goodwill (De

Goodwill and CDI - Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 15,131	$ 15,131	[1]
[1]	Derived from audited consolidated financial statements.

Loans Receivable And Allowanc_3

Loans Receivable And Allowance For Loan Losses: Schedule of Loans receivable and Loans held for sale (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 1,118,023	$ 1,082,290
Undisbursed portion of construction loans in process	106,009	95,224
Deferred loan origination fees, net	4,539	5,143
Allowance for loan losses	13,468	13,469
Less: Loans in process, Deferred fees and Allowance for loan losses	124,016	113,836
Loans receivable, net	$ 994,007	$ 968,454	[1]
Ratio of loan category to total loans receivable (percent)	100.00%	100.00%
Mortgage loans excluded	$ 3,700	$ 3,217
Total mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 974,783	$ 931,289
Ratio of loan category to total loans receivable (percent)	87.20%	86.00%
Mortgage loans, one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 129,151	$ 119,935
Ratio of loan category to total loans receivable (percent)	11.60%	11.10%
Mortgage loans, multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 84,180	$ 87,563
Ratio of loan category to total loans receivable (percent)	7.50%	8.10%
Mortgage loans, commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 497,361	$ 470,650
Ratio of loan category to total loans receivable (percent)	44.50%	43.50%
Mortgage loans, construction - custom and owner/builder
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 116,267	$ 109,152
Ratio of loan category to total loans receivable (percent)	10.40%	10.10%
Mortgage loans, construction - speculative one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 18,255	$ 17,813
Ratio of loan category to total loans receivable (percent)	1.60%	1.60%
Mortgage loans, construction – commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 42,611	$ 43,365
Ratio of loan category to total loans receivable (percent)	3.80%	4.00%
Mortgage loans, construction - Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 54,710	$ 52,071
Ratio of loan category to total loans receivable (percent)	4.90%	4.80%
Mortgage loans, construction - Land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 13,680	$ 10,804
Ratio of loan category to total loans receivable (percent)	1.20%	1.00%
Mortgage loans, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 18,568	$ 19,936
Ratio of loan category to total loans receivable (percent)	1.70%	1.80%
Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 36,837	$ 35,500
Ratio of loan category to total loans receivable (percent)	3.30%	3.30%
Consumer loans, home equity and second mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 34,375	$ 32,988
Ratio of loan category to total loans receivable (percent)	3.10%	3.10%
Consumer loans, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 2,462	$ 2,512
Ratio of loan category to total loans receivable (percent)	0.20%	0.20%
Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans	$ 85,006	$ 74,579
Ratio of loan category to total loans receivable (percent)	7.60%	6.90%
SBA PPP Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans	$ 21,397	$ 40,922
Ratio of loan category to total loans receivable (percent)	1.90%	3.80%
Total Commercial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans	$ 106,403	$ 115,501
Ratio of loan category to total loans receivable (percent)	9.50%	10.70%
[1]	Derived from audited consolidated financial statements.

Loans Receivable And Allowanc_4

Loans Receivable And Allowance For Loan Losses - Narrative (Details) - USD ($)	Dec. 31, 2021	Sep. 30, 2021
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Unamortized loan commitment and origination fees and unamortized discounts or premiums	$ 392,000	$ 449,000
Troubled debt restructured loan	2,539,000	2,553,000
Loans and leases receivable, impaired, commitment to lend	0	$ 0
Allowance for loan losses allocated to TDR loans	$ 0

Loans Receivable And Allowanc_5

Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	$ 13,469	$ 13,414
Provision for (Recapture of) Loan Losses	0	0
Charge- offs	(1)	0
Recoveries	0	18
Allowance for loan losses, Ending Allowance	13,468	13,432
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,154	1,163
Provision for (Recapture of) Loan Losses	83	(28)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	1,237	1,135
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	765	718
Provision for (Recapture of) Loan Losses	(17)	39
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	748	757
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	6,813	7,144
Provision for (Recapture of) Loan Losses	(6)	(8)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	6,807	7,136
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	644	832
Provision for (Recapture of) Loan Losses	27	(62)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	671	770
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	188	158
Provision for (Recapture of) Loan Losses	(35)	24
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	153	182
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	784	420
Provision for (Recapture of) Loan Losses	(191)	138
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	593	558
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	436	238
Provision for (Recapture of) Loan Losses	24	(52)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	460	186
Mortgage loans, construction - Land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	124	133
Provision for (Recapture of) Loan Losses	33	(10)
Charge- offs	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	157	123
Mortgage loans, land
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	470	572
Provision for (Recapture of) Loan Losses	(35)	(103)
Charge- offs	0	0
Recoveries	0	5
Allowance for loan losses, Ending Allowance	435	474
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	528	593
Provision for (Recapture of) Loan Losses	4	12
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	532	605
Consumer loans, other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	50	71
Provision for (Recapture of) Loan Losses	(1)	(18)
Charge- offs	(1)	0
Recoveries	0	4
Allowance for loan losses, Ending Allowance	48	57
Commercial business loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,513	1,372
Provision for (Recapture of) Loan Losses	114	68
Charge- offs	0	0
Recoveries	0	9
Allowance for loan losses, Ending Allowance	1,627	$ 1,449
SBA PPP Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	0
Allowance for loan losses, Ending Allowance	$ 0

Loans Receivable And Allowanc_6

Loans Receivable And Allowance For Loan Losses: Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in the allowance for loan losses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 254	$ 247
Allowance for Loan Losses, Collectively Evaluated for Impairment	13,214	13,222
Allowance for Loan Losses, Total	13,468	13,469	$ 13,432	$ 13,414
Recorded Investment in Loans, Individually Evaluated for Impairment	5,214	5,224
Recorded Investment in Loans, Collectively Evaluated for Impairment	1,006,800	981,842
Loans receivable	1,012,014	987,066
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,237	1,154
Allowance for Loan Losses, Total	1,237	1,154	1,135	1,163
Recorded Investment in Loans, Individually Evaluated for Impairment	582	407
Recorded Investment in Loans, Collectively Evaluated for Impairment	128,569	119,528
Loans receivable	129,151	119,935
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	748	765
Allowance for Loan Losses, Total	748	765	757	718
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	84,180	87,563
Loans receivable	84,180	87,563
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	6,807	6,813
Allowance for Loan Losses, Total	6,807	6,813	7,136	7,144
Recorded Investment in Loans, Individually Evaluated for Impairment	3,037	3,143
Recorded Investment in Loans, Collectively Evaluated for Impairment	494,324	467,507
Loans receivable	497,361	470,650
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	671	644
Allowance for Loan Losses, Total	671	644	770	832
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	63,748	61,003
Loans receivable	63,748	61,003
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	153	188
Allowance for Loan Losses, Total	153	188	182	158
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	8,760	9,657
Loans receivable	8,760	9,657
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	593	784
Allowance for Loan Losses, Total	593	784	558	420
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	32,290	38,931
Loans receivable	32,290	38,931
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	460	436
Allowance for Loan Losses, Total	460	436	186	238
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	27,122	22,888
Loans receivable	27,122	22,888
Mortgage loans, construction - Land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	157	124
Allowance for Loan Losses, Total	157	124	123	133
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	7,594	5,502
Loans receivable	7,594	5,502
Mortgage loans, land
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	78	76
Allowance for Loan Losses, Collectively Evaluated for Impairment	357	394
Allowance for Loan Losses, Total	435	470	474	572
Recorded Investment in Loans, Individually Evaluated for Impairment	675	683
Recorded Investment in Loans, Collectively Evaluated for Impairment	17,893	19,253
Loans receivable	18,568	19,936
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	532	528
Allowance for Loan Losses, Total	532	528	605	593
Recorded Investment in Loans, Individually Evaluated for Impairment	456	516
Recorded Investment in Loans, Collectively Evaluated for Impairment	33,919	32,472
Loans receivable	34,375	32,988
Consumer loans, other
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	48	50
Allowance for Loan Losses, Total	48	50	57	71
Recorded Investment in Loans, Individually Evaluated for Impairment	5	17
Recorded Investment in Loans, Collectively Evaluated for Impairment	2,457	2,495
Loans receivable	2,462	2,512
Commercial business loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	176	171
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,451	1,342
Allowance for Loan Losses, Total	1,627	1,513	$ 1,449	$ 1,372
Recorded Investment in Loans, Individually Evaluated for Impairment	459	458
Recorded Investment in Loans, Collectively Evaluated for Impairment	84,547	74,121
Loans receivable	85,006	74,579
SBA PPP Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	0	0
Allowance for Loan Losses, Total	0	0
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	21,397	40,922
Loans receivable	$ 21,397	$ 40,922

Loans Receivable And Allowanc_7

Loans Receivable And Allowance For Loan Losses: Past Due Status of Loans (Details) - USD ($) $ in Thousands		Dec. 31, 2021		Sep. 30, 2021
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		$ 1,012,014		$ 987,066
Loans receivable, Non-Accrual	[1]	2,853		2,854
Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		129,151		119,935
Loans receivable, Non-Accrual	[1]	582		407
Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		84,180		87,563
Loans receivable, Non-Accrual	[1]	0		0
Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		497,361		470,650
Loans receivable, Non-Accrual	[1]	675		773
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		63,748		61,003
Loans receivable, Non-Accrual	[1]	0		0
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		8,760		9,657
Loans receivable, Non-Accrual	[1]	0		0
Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		32,290		38,931
Loans receivable, Non-Accrual	[1]	0		0
Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		27,122		22,888
Loans receivable, Non-Accrual	[1]	0		0
Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		7,594		5,502
Loans receivable, Non-Accrual	[1]	0		0
Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		18,568		19,936
Loans receivable, Non-Accrual	[1]	676		683
Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		34,375		32,988
Loans receivable, Non-Accrual	[1]	456		516
Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		2,462		2,512
Loans receivable, Non-Accrual	[1]	5		17
Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		85,006		74,579
Loans receivable, Non-Accrual		459	[1]	458
SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		21,397		40,922
Loans receivable, Non-Accrual		0		0	[1]
30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		57		5
30 to 59 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		23		0
30 to 59 Days Past Due | Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		34		0
30 to 59 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
30 to 59 Days Past Due | Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		5
30 to 59 Days Past Due | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		326		180
60 to 89 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		180
60 to 89 Days Past Due | Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		183		0
60 to 89 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		143		0
60 to 89 Days Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
60 to 89 Days Past Due | Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0
60 to 89 Days Past Due | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Past Due 90 Days or More and Still Accruing
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Consumer loans, other
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Past Due 90 Days or More and Still Accruing | Commercial business loans
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0
Past Due 90 Days or More and Still Accruing | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Past Due 90 Days or More and Still Accruing		0		0
Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		3,236		3,039
Financial Asset, Past Due | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		605		587
Financial Asset, Past Due | Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Financial Asset, Past Due | Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		892		773
Financial Asset, Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		143		0
Financial Asset, Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Financial Asset, Past Due | Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Financial Asset, Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Financial Asset, Past Due | Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Financial Asset, Past Due | Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		676		683
Financial Asset, Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		456		516
Financial Asset, Past Due | Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		5		17
Financial Asset, Past Due | Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		459		463
Financial Asset, Past Due | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0		0
Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		1,008,778		984,027
Financial Asset, Not Past Due | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		128,546		119,348
Financial Asset, Not Past Due | Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		84,180		87,563
Financial Asset, Not Past Due | Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		496,469		469,877
Financial Asset, Not Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		63,605		61,003
Financial Asset, Not Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		8,760		9,657
Financial Asset, Not Past Due | Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		32,290		38,931
Financial Asset, Not Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		27,122		22,888
Financial Asset, Not Past Due | Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		7,594		5,502
Financial Asset, Not Past Due | Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		17,892		19,253
Financial Asset, Not Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		33,919		32,472
Financial Asset, Not Past Due | Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		2,457		2,495
Financial Asset, Not Past Due | Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		84,547		74,116
Financial Asset, Not Past Due | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		$ 21,397		$ 40,922
[1]	Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual.

Loans Receivable And Allowanc_8

Loans Receivable And Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 1,012,014	$ 987,066
Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	129,151	119,935
Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	84,180	87,563
Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	497,361	470,650
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	63,748	61,003
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	8,760	9,657
Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	32,290	38,931
Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	27,122	22,888
Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	7,594	5,502
Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	18,568	19,936
Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	34,375	32,988
Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	2,462	2,512
Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	85,006	74,579
SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	21,397	40,922
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	990,646	965,950
Pass | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	127,984	118,857
Pass | Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	84,180	87,563
Pass | Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	483,057	456,188
Pass | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	62,024	59,699
Pass | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	8,760	9,657
Pass | Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	30,773	37,414
Pass | Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	27,122	22,888
Pass | Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	7,562	5,467
Pass | Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	17,288	18,648
Pass | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	33,635	32,190
Pass | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	2,391	2,465
Pass | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	84,473	73,992
Pass | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	21,397	40,922
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	7,857	12,500
Watch | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	47	129
Watch | Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	5,326	10,285
Watch | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	1,724	1,304
Watch | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	549	558
Watch | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	145	145
Watch | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	66	30
Watch | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	49
Watch | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	5,002	5,012
Special Mention | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	533	537
Special Mention | Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	2,919	2,921
Special Mention | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	1,517	1,517
Special Mention | Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Special Mention | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	33	37
Special Mention | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	8,509	3,604
Substandard | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	587	412
Substandard | Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	6,059	1,256
Substandard | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	32	35
Substandard | Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	731	730
Substandard | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	595	653
Substandard | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	5	17
Substandard | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	500	501
Substandard | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 0	$ 0

Loans Receivable And Allowanc_9

Loans Receivable And Allowance For Loan Losses: Impaired Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021
Recorded Investment
With no related allowance recorded	$ 4,553	$ 4,568
With an allowance recorded	661	656
Total:	5,214	5,224
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	4,599	4,615
With an allowance recorded	661	656
Total:	5,260	5,271
Related Allowance	254	247
Average Recorded Investment
With no related allowance recorded	4,562	4,750
With an allowance recorded	659	454
Total	5,221	5,204
Interest Income Recognized
With no related allowance recorded	48	220	[1]
With an allowance recorded	0	0
Total	48	220
Cash Basis Interest Income Recognized
With no related allowance recorded	39	182
With an allowance recorded	0	0
Total	39	182
Mortgage loans, one-to-four family
Recorded Investment
With no related allowance recorded	582	407
With an allowance recorded		0
Total:	582	407
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	625	450
With an allowance recorded		0
Total:	625	450
Related Allowance	0	0
Average Recorded Investment
With no related allowance recorded	495	655
With an allowance recorded		97
Total	495	752
Interest Income Recognized
With no related allowance recorded	8	58	[1]
With an allowance recorded		0
Total	8	58
Cash Basis Interest Income Recognized
With no related allowance recorded	8	52
With an allowance recorded		0
Total	8	52
Mortgage loans, commercial
Recorded Investment
With no related allowance recorded	3,037	3,143
Total:	3,037	3,143
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	3,037	3,143
Total:	3,037	3,143
Related Allowance	0	0
Average Recorded Investment
With no related allowance recorded	3,090	3,039
Total	3,090	3,039
Interest Income Recognized
With no related allowance recorded	40	159	[1]
Total	40	159
Cash Basis Interest Income Recognized
With no related allowance recorded	31	127
Total	31	127
Mortgage loans, land
Recorded Investment
With no related allowance recorded	313	321
With an allowance recorded	362	362
Total:	675	683
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	313	321
With an allowance recorded	362	362
Total:	675	683
Related Allowance	78	76
Average Recorded Investment
With no related allowance recorded	317	292
With an allowance recorded	362	72
Total	679	364
Interest Income Recognized
With no related allowance recorded	0	2	[1]
With an allowance recorded	0	0
Total	0	2
Cash Basis Interest Income Recognized
With no related allowance recorded	0	2
With an allowance recorded	0	0
Total	0	2
Consumer loans, home equity and second mortgage
Recorded Investment
With no related allowance recorded	456	516
Total:	456	516
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	456	516
Total:	456	516
Related Allowance	0	0
Average Recorded Investment
With no related allowance recorded	486	552
Total	486	552
Interest Income Recognized
With no related allowance recorded	0	1	[1]
Total	0	1
Cash Basis Interest Income Recognized
With no related allowance recorded	0	1
Total	0	1
Consumer loans, other
Recorded Investment
With no related allowance recorded	5	17
Total:	5	17
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	5	17
Total:	5	17
Related Allowance	0	0
Average Recorded Investment
With no related allowance recorded	11	12
Total	11	12
Interest Income Recognized
With no related allowance recorded	0	0
Total	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded	0
With an allowance recorded		0
Total	0	0
Commercial business loans
Recorded Investment
With no related allowance recorded	160	164
With an allowance recorded	299	294
Total:	459	458
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	163	168
With an allowance recorded	299	294
Total:	462	462
Related Allowance	176	171
Average Recorded Investment
With no related allowance recorded	163	200
With an allowance recorded	297	285
Total	460	485
Interest Income Recognized
With no related allowance recorded	0	0	[1]
With an allowance recorded	0	0
Total	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded	0	0
With an allowance recorded	0	0
Total	$ 0	$ 0
[1]	For the three months ended December 31, 2021

Loans Receivable And Allowan_10

Loans Receivable And Allowance For Loan Losses: COVID Modifications (Details) $ in Thousands	Sep. 30, 2021USD ($)loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ratio of loan category to total loans, modified for COVID	100.00%
Number of commercial loans modified | loan	1
Commercial loans modified for COVID | $	$ 323
Mortgage loans, one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of mortgage loans modified | loan	1
Mortgage loans modified for COVID | $	$ 323
Ratio of loan category to total loans, modified for COVID	100.00%

Loans Receivable And Allowan_11

Loans Receivable And Allowance For Loan Losses: Schedule 1 of Troubled debt restructured loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	$ 2,539	$ 2,553
Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	2,361	2,371
Non- Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	178	182
Mortgage loans, commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	2,361	2,371
Mortgage loans, commercial | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	2,361	2,371
Mortgage loans, commercial | Non- Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	0	0
Mortgage loans, land
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	116	119
Mortgage loans, land | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	0	0
Mortgage loans, land | Non- Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	116	119
Consumer loans, home equity and second mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	62	63
Consumer loans, home equity and second mortgage | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	0	0
Consumer loans, home equity and second mortgage | Non- Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	$ 62	$ 63

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2019	Sep. 30, 2021		Oct. 01, 2019
Leases [Abstract]
Operating lease right-of-use ("ROU") assets	$ 2,206			$ 2,283	[1]	$ 2,890
Operating lease cost	94	$ 93
Short-term lease cost	0	0
Total lease cost	94	$ 93
Operating cash flows from operating leases	$ 87		$ 327
Weighted average remaining lease term-operating leases	8 years 2 months 12 days			8 years 4 months 24 days
Weighted average discount rate-operating leases	2.24%			2.24%
[1]	Derived from audited consolidated financial statements.

Leases - Schedule Of Lease Matu

Leases - Schedule Of Lease Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Leases [Abstract]
Remainder of 2022	$ 255
2023	310
2024	313
2025	317
2026	284
Thereafter	1,038
Total lease payments	2,517
Less imputed interest	232
Total	$ 2,285	$ 2,359

Net Income Per Common Share_ Sc

Net Income Per Common Share: Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share, Basic [Abstract]
Numerator – net income		$ 5,485	$ 7,290
Denominator – weighted average common shares outstanding (in shares)		8,356,066	8,313,493
Basic net income per common share (in dollars per share)		$ 0.66	$ 0.88
Earnings Per Share, Diluted [Abstract]
Effect of dilutive stock options (in shares)	[1]	92,834	99,251
Weighted average common shares and common stock equivalents (in shares)		8,448,900	8,412,744
Diluted net income per common share (in dollars per share)		$ 0.65	$ 0.87
Stock Options
Earnings Per Share, Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)		210,052	137,650
[1]

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended
		Dec. 31, 2021		Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period		$ 206,899	[1]	$ 187,630
Balance at end of period		210,375		193,325
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	59		61
Other comprehensive loss	[2]	(17)		(17)
Balance at end of period	[2]	42		44
Accumulated Net Unrealized Investment Gain (Loss) | Available-for-sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	75		87
Other comprehensive loss	[2]	(18)		(17)
Balance at end of period	[2]	57		70
Accumulated Net Unrealized Investment Gain (Loss) | Held-to-maturity Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	(16)		(26)
Other comprehensive loss	[2]	1		0
Balance at end of period	[2]	$ (15)		$ (26)
[1]	Derived from audited consolidated financial statements.
[2]	All amounts are net of income taxes.

Stock Compensation Plans (Detai

Stock Compensation Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Jan. 28, 2020	Jan. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised during the period	$ 123	$ 120
Number of unvested stock options (shares)	176,670	158,572
Unvested stock options, aggregate grant date fair value	$ 844	$ 567
Unvested stock options, aggregate intrinsic value	568
Stock options vested during period, aggregate grant date fair value	$ 1
Stock options vested during period (shares)	200	200
Stock options, outstanding, aggregate intrinsic value	$ 2,620	$ 2,880
Unrecognized compensation expense, non-vested options	$ 844
Unrecognized compensation expense, non-vested options, amortization period (in years)	2 years 5 months 1 day
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	300,000
Award vesting percentage	20.00%
Award vesting period (years)	5 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term	10 years
Equity Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				352,366
Number of shares available for grant (in shares)	21,520
Equity Incentive Plan 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	238,000		350,000
Equity Incentive Plan 2019 | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)			300,000

Stock Compensation Plans_ Discl

Stock Compensation Plans: Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details) - $ / shares	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Shares:
Options outstanding, beginning of period (shares)	406,815	395,349
Exercised (shares)	(8,900)	(9,900)
Granted (shares)	1,000	1,500
Forfeited (shares)	(11,594)	(2,320)
Options outstanding, end of period (shares)	387,321	384,629
Weighted Average Exercise Price (in dollars per share):
Options outstanding, beginning of period (dollars per share)	$ 21.62	$ 18.45
Exercised (dollars per share)	14.63	9.70
Granted (dollars per share)	27.25	19.13
Forfeited (dollars per share)	25.28	26.69
Options outstanding, end of period (dollars per share)	$ 21.70	$ 18.62

Stock Compensation Plans And St

Stock Compensation Plans And Stock Based Compensation: Schedule of Fair Value Assumptions (Details)	3 Months Ended
	Dec. 31, 2021$ / shares
Share-based Payment Arrangement, Noncash Expense [Abstract]
Expected volatility (percent)	34.00%
Expected term (in years)	5 years
Expected dividend yield (percent)	3.49%
Risk free interest rate (percent)	1.22%
Grant date fair value per share (dollars per share)	$ 5.88

Stock Compensation Plans_ Stock

Stock Compensation Plans: Stock Options by Exercise Price (Details) - Stock Options shares in Thousands	3 Months Ended
	Dec. 31, 2021$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	387,321
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 21.70
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 7 months 6 days
Options Exercisable, Number (shares) | shares	210,651
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 18.80
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 18 days
$5.86 - $6.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 5.86
Weighted Average Exercise Price, maximum (dollars per share)	$ 6
Options Outstanding, Number (shares) | shares	4,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 5.93
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	9 months 18 days
Options Exercisable, Number (shares) | shares	4,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 5.93
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	9 months 18 days
$9.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 9
Options Outstanding, Number (shares) | shares	26,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 9
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	1 year 9 months 18 days
Options Exercisable, Number (shares) | shares	26,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 9
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	1 year 9 months 18 days
$10.26 - $10.71
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 10.26
Weighted Average Exercise Price, maximum (dollars per share)	$ 10.71
Options Outstanding, Number (shares) | shares	57,875
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 10.57
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	3 years 2 months 12 days
Options Exercisable, Number (shares) | shares	57,875
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 10.57
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	3 years 2 months 12 days
$15.67 - $19.13
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 15.67
Weighted Average Exercise Price, maximum (dollars per share)	$ 19.13
Options Outstanding, Number (shares) | shares	92,300
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 16.52
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years 6 months
Options Exercisable, Number (shares) | shares	40,980
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 16.04
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	5 years 10 months 24 days
$26.50 - $27.25
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 26.5
Weighted Average Exercise Price, maximum (dollars per share)	$ 27.25
Options Outstanding, Number (shares) | shares	43,016
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 27.13
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years 9 months 18 days
Options Exercisable, Number (shares) | shares	17,596
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 27.13
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	7 years 9 months 18 days
$28.23 - $29.69
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 28.23
Weighted Average Exercise Price, maximum (dollars per share)	$ 29.69
Options Outstanding, Number (shares) | shares	125,050
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 28.81
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	8 years 2 months 12 days
Options Exercisable, Number (shares) | shares	40,200
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 29.69
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	5 years 9 months 18 days
$31.80
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, minimum (dollars per share)	$ 31.8
Options Outstanding, Number (shares) | shares	39,080
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 31.80
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 9 months 18 days
Options Exercisable, Number (shares) | shares	24,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 31.80
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	6 years 9 months 18 days

Fair Value Measurements_ Balanc

Fair Value Measurements: Balances of assets and liabilities measured at estimated fair value on a recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	$ 57,498	$ 64,131
MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	56,552	63,176
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	946	955
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	56,552	63,176
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	56,552	63,176
Recurring | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	946	955
Recurring | Fair Value, Inputs, Level 1 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring | Fair Value, Inputs, Level 1 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	946	955
Recurring | Fair Value, Inputs, Level 2 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	56,552	63,176
Recurring | Fair Value, Inputs, Level 2 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring | Fair Value, Inputs, Level 3 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	0	0
Recurring | Fair Value, Inputs, Level 3 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated Fair Value	$ 0	$ 0

Fair Value Measurements_ Bala_2

Fair Value Measurements: Balances of assets measured at estimated fair value on a non-recurring basis, and total losses resulting from estimated fair value adjustments (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	$ 0	$ 0
Fair Value, Inputs, Level 1 | Mortgage loans, land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Commercial business loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Total impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Private label residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | OREO and other repossessed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	1	10
Fair Value, Inputs, Level 2 | Mortgage loans, land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Commercial business loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Total impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Private label residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	1	10
Fair Value, Inputs, Level 2 | OREO and other repossessed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	564	566
Fair Value, Inputs, Level 3 | Mortgage loans, land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	284	286
Fair Value, Inputs, Level 3 | Commercial business loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	123	123
Fair Value, Inputs, Level 3 | Total impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	407	409
Fair Value, Inputs, Level 3 | Private label residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 3 | OREO and other repossessed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	$ 157	$ 157

Fair Value Measurements_ Fair V

Fair Value Measurements: Fair Value Measurements, Nonrecurring, Valuation Techniques (Details) - Nonrecurring - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	$ 564	$ 566
Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	407	409
Impaired loans | Market Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	407	409
OREO and other repossessed assets | Market Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	$ 157	$ 157

Fair Value Measurements_ Schedu

Fair Value Measurements: Schedule of estimated fair values of financial instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities	$ 946	$ 955
Other investments, at cost	3,000	3,000	[1]
Recorded Amount
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	558,328	580,196
CDs held for investment	24,648	28,482
Investment securities	171,152	132,278
Investments in equity securities	946	955
FHLB stock	2,103	2,103
Other investments, at cost	3,000	3,000
Loans held for sale	3,700	3,217
Loans receivable, net	994,007	968,454
Accrued interest receivable	3,938	3,745
Certificates of deposit	132,155	134,129
Accrued interest payable	124	134
Fair Value
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	558,328	580,196
CDs held for investment	24,648	28,482
Investment securities	171,751	133,286
Investments in equity securities	946	955
FHLB stock	2,103	2,103
Other investments, at cost	3,000	3,000
Loans held for sale	3,790	3,290
Loans receivable, net	1,004,899	981,905
Accrued interest receivable	3,938	3,745
Certificates of deposit	133,005	135,178
Accrued interest payable	124	134
Fair Value | Fair Value, Inputs, Level 1
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	558,328	580,196
CDs held for investment	24,648	28,482
Investment securities	67,005	28,670
Investments in equity securities	946	955
FHLB stock	2,103	2,103
Other investments, at cost	3,000	3,000
Loans held for sale	3,790	3,290
Loans receivable, net	0	0
Accrued interest receivable	3,938	3,745
Certificates of deposit	0	0
Accrued interest payable	124	134
Fair Value | Fair Value, Inputs, Level 2
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
CDs held for investment	0	0
Investment securities	104,746	104,616
Investments in equity securities	0	0
FHLB stock	0	0
Other investments, at cost	0	0
Loans held for sale	0	0
Loans receivable, net	0	0
Accrued interest receivable	0	0
Certificates of deposit	0	0
Accrued interest payable	0	0
Fair Value | Fair Value, Inputs, Level 3
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
CDs held for investment	0	0
Investment securities	0	0
Investments in equity securities	0	0
FHLB stock	0	0
Other investments, at cost	0	0
Loans held for sale	0	0
Loans receivable, net	1,004,899	981,905
Accrued interest receivable	0	0
Certificates of deposit	133,005	135,178
Accrued interest payable	$ 0	$ 0
[1]	Derived from audited consolidated financial statements.

Revenue from Contract with Cust

Revenue from Contract with Customer (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Deposit Account
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 913	$ 1,055
Credit and Debit Card
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	1,277	1,156
Asset Management
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	78	105
Investment Advice
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 2	$ 3