Timberland Bancorp (TSBK) 10-Q 5 Aug 20 2020 Q3 Quarterly report Financial data

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Jun. 30, 2020
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS In January 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . ASU 2016-01 generally requires equity investments - except those accounted for under the valuation method of accounting or those that result in consolidation of the investee - to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. ASU 2016-01 is intended to simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. ASU 2016-01 also eliminates certain disclosures related to the fair value of financial instruments and requires entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. ASU 2016-01 was effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company adopted ASU 2016-01 effective October 1, 2018. As required by ASU 2016-01, on October 1, 2018 the Company recorded a one-time cumulative effect adjustment of $63,000 representing net unrealized losses on equity securities (mutual funds) between accumulated other comprehensive loss and retained earnings on the accompanying consolidated balance sheet. Additionally, the fair values of financial instruments for disclosure purposes were computed using an exit price notion and deposits with no stated maturity are no longer included in the fair value disclosures in Note 10. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which created FASB Accounting Standards Codification ("ASC") Topic 842 ("ASC 842") and is intended to increase transparency and comparability among organizations by requiring the recognition of lease assets and lease liabilities on the balance sheet and disclosure of key information about leasing arrangements. The principal change required by ASC 842 relates to lessee accounting, and is that for operating leases, a lessee is required to (1) recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position, (2) recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term generally on a straight-line basis, and (3) classify all cash payments within operating activities in the statement of cash flows. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. ASC 842 also changes disclosure requirements related to leasing activities and requires certain qualitative disclosures along with specific quantitative disclosures. ASC 842 also provides an optional transition method for adoption, under which an entity initially applies ASC 842 at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in which it adopts ASC 842 will continue to be in accordance with current GAAP. ASC 842 was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. The Company adopted the provisions of ASC 842 effective October 1, 2019 utilizing the optional transition method and will not restate comparative periods. The Company also elected the package of practical expedients permitted under ASC 842's transition guidance, which allows the Company to carryforward its historical lease classifications and its assessment as to whether a contract is or contains a lease. The Company also elected to not recognize lease assets and lease liabilities for leases with an initial term of 12 months or less. As a result of adopting ASC 842, total other assets and other liabilities increased by $2.89 million on October 1, 2019. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses , as amended by ASU 2018-19, ASU 2019-04 and ASU 2019-05. This ASU 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, this ASU 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 debt securities and loans. ASU 2016-13 retains many of the current disclosure requirements in GAAP and expands certain disclosure requirements. As a smaller reporting company, ASU 2016-13 is effective for the Company 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 other-than-temporary impairment 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 ensure it is fully compliant with the amendments at the adoption date. At this time, the Company anticipates 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 will be effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early application of this ASU is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of ASU 2017-04 is not expected to have a material impact on the Company's future consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. This ASU shortens the amortization period for certain callable debt securities held at a premium to the earliest call date. ASU 2017-08 was effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2018. The Company adopted ASU 2017-08 effective October 1, 2019 and it did not have a material impact on the Company's consolidated financial statements. In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. This ASU was issued to expand the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. Previously, these awards were recorded at the fair value of consideration received or the fair value of the equity instruments issued and were measured at the earlier of the commitment date or the date performance was completed. The amendments in this ASU require nonemployee share-based payment awards to be measured at the grant-date fair value of the equity instrument. ASU 2018-07 was effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2018. The Company adopted ASU 2018-07 effective October 1, 2019 and it did not have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement . This ASU modifies the disclosure requirements for fair value measurements. The following disclosure requirements were removed from ASC Topic 820, Fair Value Measurement : (1) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy; (2) the policy for timing of transfers between levels; and (3) the valuation process for Level 3 fair value measurements. This ASU clarifies that the measurement uncertainty disclosure is to communicate information about the uncertainty in measurement as of the reporting date. This ASU adds the following disclosure requirements for Level 3 measurements: (1) changes in unrealized gains and losses for the period included in other comprehensive income for the recurring Level 3 fair value measurements held at the end of the reporting period, and (2) the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for any removed or modified disclosures. The adoption of ASU 2018-13 is not expected to have a material impact on the Company's future consolidated financial statements. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The amendments in this ASU broaden the scope of ASC Subtopic 350-40 to include costs incurred to implement a hosting arrangement that is a service contract. The amendments align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The costs are capitalized or expensed depending on the nature of the costs and the project stage during which they are incurred, consistent with the accounting for internal-use software costs. The amendments in this ASU result in consistent capitalization of implementation costs of a hosting arrangement that is a service contract and implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments in this ASU. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The adoption of ASU 2018-15 is not expected to 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 guidance. ASU 2019-12 is effective for fiscal years beginning after December 15, 2021, including interim periods within fiscal years. The adoption of ASU 2019-12 is not expected to have a material impact on the Company's future consolidated financial statements. In March 2020, the FASB issued ASU No. 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 adoption of ASU 2020-04 is not expected to have a material impact on the Company's future consolidated financial statements.

Cover

Cover - $ / shares	Jun. 30, 2020	Jun. 30, 2020	Jul. 31, 2020
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date		Jun. 30, 2020
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	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)			8,310,793
Common stock par value (in dollars per share)	$ 0.01	$ 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		2020
Document Fiscal Period Focus		Q3
Amendment Flag		false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Cash and cash equivalents:
Cash and due from financial institutions	$ 24,691	$ 25,179	[1]
Interest-bearing deposits in banks	246,953	117,836	[1]
Total cash and cash equivalents	271,644	143,015	[1]
Certificates of deposit (“CDs”) held for investment (at cost, which      approximates fair value)	72,014	78,346	[1]
Investment securities held to maturity, at amortized cost (estimated fair value $32,606 and $32,580)	30,660	31,102	[1]
Investment securities available for sale, at fair value	41,914	22,532	[1]
Investments in equity securities, at fair value	977	958
Federal Home Loan Bank of Des Moines (“FHLB”) stock	1,922	1,437	[1]
Other investments, at cost	3,000	3,000	[1]
Loans held for sale	9,837	6,071	[1]
Loans receivable, net of allowance for loan losses of $12,894 and $9,690	1,012,759	886,662	[1]
Premises and equipment, net	23,119	22,830	[1]
Other real estate owned (“OREO”) and other repossessed assets, net	1,466	1,683	[1]
Accrued interest receivable	4,614	3,598	[1]
Bank owned life insurance (“BOLI”)	21,447	21,005	[1]
Goodwill	15,131	15,131	[1]
Core deposit intangible (“CDI”), net	1,727	2,031
Servicing rights, net	3,073	2,408	[1]
Operating lease right-of-use ("ROU") assets	2,662	0	[1]
Other assets	3,676	5,323	[1]
Total assets	1,521,642	1,247,132	[1]
Deposits:
Non-interest-bearing demand	427,102	296,472	[1]
Interest-bearing	891,438	771,755	[1]
Total deposits	1,318,540	1,068,227	[1]
FHLB borrowings	10,000	0	[1]
Operating lease liabilities	2,695	0
Other liabilities and accrued expenses	7,601	7,838	[1]
Total liabilities	1,338,836	1,076,065	[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; 8,310,793 shares issued and outstanding - June 30, 2020 8,329,419 shares issued and outstanding - September 30, 2019	42,352	43,030	[2]
Retained earnings	140,478	127,987	[2]
Accumulated other comprehensive income (loss)	(24)	50	[2]
Total shareholders’ equity	182,806	171,067	[2]
Total liabilities and shareholders’ equity	1,521,642	1,247,132	[2]
Estimated Fair Value	$ 32,606	$ 32,580
[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	Jun. 30, 2020	Sep. 30, 2019
Statement of Financial Position [Abstract]
Investments securities held to maturity, estimated fair value	$ 32,606	$ 32,580
Allowance for loan losses	$ 12,894	$ 9,690
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)	8,310,793	8,329,419
Common stock shares outstanding (shares)	8,310,793	8,329,419

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest and dividend income
Loans receivable and loans held for sale	$ 12,871	$ 12,459	$ 38,457	$ 36,457
Investment securities	345	339	1,274	915
Dividends from mutual funds, FHLB stock and other investments	23	43	95	121
Interest-bearing deposits in banks and CDs	429	1,344	2,164	3,849
Total interest and dividend income	13,668	14,185	41,990	41,342
Interest expense
Deposits	1,159	1,248	3,591	3,332
FHLB borrowings	29	0	37	0
Total interest expense	1,188	1,248	3,628	3,332
Net interest income	12,480	12,937	38,362	38,010
Provision for loan losses	1,000	0	3,200	0
Net interest income after provision for loan losses	11,480	12,937	35,162	38,010
Non-interest income
Recoveries on investment securities	6	14	113	46
Adjustment for portion of other than temporary impairment ("OTTI") transferred from other comprehensive income (loss) (before income taxes)	0	0	0	(12)
Net recoveries on investment securities	6	14	113	34
Gain on sale of investment securities held to maturity, net	0	47	0	47
BOLI net earnings	148	188	442	1,502
Gain on sales of loans, net	2,141	520	3,829	1,194
Servicing income on loans sold	35	110	148	375
Other, net	517	334	1,403	922
Total non-interest income, net	4,855	3,538	12,473	10,744
Non-interest expense
Salaries and employee benefits	4,570	4,501	13,913	13,974
Premises and equipment	1,077	998	2,914	2,946
Loss (gain) on sales/dispositions of premises and equipment, net	4	0	(98)	8
Advertising	150	177	493	543
OREO and other repossessed assets, net	11	145	60	247
ATM and debit card interchange transaction fees	405	364	1,203	1,174
Postage and courier	137	131	416	379
State and local taxes	255	237	705	642
Professional fees	286	267	766	687
Federal Deposit Insurance Corporation ("FDIC") insurance	143	72	116	243
Loan administration and foreclosure	191	73	358	244
Data processing and telecommunications	603	987	1,702	2,667
Deposit operations	245	391	836	1,049
Amortization of CDI	101	120	304	339
Other	483	504	1,631	1,665
Total non-interest expense, net	8,661	8,967	25,319	26,807
Income before income taxes	7,674	7,508	22,316	21,947
Provision for income taxes	1,463	1,552	4,404	4,262
Net income	$ 6,211	$ 5,956	$ 17,912	$ 17,685
Net income per common share
Basic (in dollars per share)	$ 0.75	$ 0.71	$ 2.15	$ 2.13
Diluted (in dollars per share)	$ 0.74	$ 0.70	$ 2.12	$ 2.09
Weighted average common shares outstanding
Basic (in shares)	8,309,947	8,338,637	8,331,908	8,313,913
Diluted (in shares)	8,378,983	8,482,360	8,437,030	8,468,212
Dividends paid per common share (in dollars per share)	$ 0.20	$ 0.25	$ 0.65	$ 0.63
Deposit Account
Non-interest income
Revenue from contract with customer	$ 858	$ 1,175	$ 3,136	$ 3,581
Credit and Debit Card
Non-interest income
Revenue from contract with customer	1,069	1,090	3,178	2,896
Asset Management
Non-interest income
Revenue from contract with customer	81	54	211	150
Investment Advice
Non-interest income
Revenue from contract with customer	$ 0	$ 6	$ 13	$ 43

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Comprehensive income
Net income	$ 6,211	$ 5,956	$ 17,912	$ 17,685
Unrealized holding gain (loss) on investment securities available for sale, net of income taxes of ($41), $3, ($23) and $2 respectively	154	9	(87)	7
Change in OTTI on investment securities held to maturity, net of income taxes:
Adjustments related to other factors for which OTTI was previously recognized, net of income taxes of $0, ($1), ($1) and ($1), respectively	0	(4)	0	(4)
Amount reclassified to credit loss for previously recorded market loss, net of income taxes of $0, $0, $0 and $3, respectively	0	0	0	9
Accretion of OTTI on investment securities held to maturity, net of income taxes of $0, $2, $3 and $6, respectively	1	7	13	21
Total other comprehensive income (loss), net of income taxes	155	12	(74)	33
Total comprehensive income	$ 6,366	$ 5,968	$ 17,838	$ 17,718

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Unrealized holding loss on investment securities available for sale, tax	$ (41)	$ 3	$ (23)	$ 2
Adjustments related to other factors for which OTTI was previously recognized, tax	0	1	(1)	(1)
Amount reclassified to credit loss for previously recorded market loss, net of income taxes of $0, $0, $0 and $3, respectively	0	0	0	3
Accretion of OTTI on investment securities held to maturity, tax	$ 0	$ 2	$ 4	$ 6

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total		Stock Options	Number of Shares	Number of SharesStock Options	Unearned  Shares Issued to ESOP	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at beginning of period (in shares) at Sep. 30, 2018				7,401,177
Balance at beginning of period at Sep. 30, 2018	$ 124,657			$ 14,394		$ (133)	$ 110,525	$ (129)	[1]
Balance at beginning of period (in shares) at Sep. 30, 2018				7,401,177
Balance at beginning of period at Sep. 30, 2018	124,657			$ 14,394		(133)	110,525	(129)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,685						17,685
Other comprehensive income (loss)	33							33
Repurchase of common stock (in shares)				(2,831)
Repurchase of common stock	$ (70)			$ (70)
Exercise of stock options (in shares)	37,756			37,756
Exercise of stock options	$ 340			$ 340
Common stock dividends	(5,243)						(5,243)
Earned ESOP shares, net of income taxes	441			$ 308		133
Stock option compensation expense			$ 159		$ 159
Common stock issued for business combination (in shares)				904,826
Common stock issued for business combination	28,267			$ 28,267
Balance at end of period (in shares) at Jun. 30, 2019				8,340,928
Balance at end of period at Jun. 30, 2019	166,269			$ 43,398		0	122,904	(33)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of Accounting Standards Update ("ASU") 2016-01							(63)	63
Adoption of Accounting Standards Update ("ASU") 2016-01 | Accounting Standards Update 2016-01							(63)
Balance at beginning of period (in shares) at Mar. 31, 2019				8,336,419
Balance at beginning of period at Mar. 31, 2019	162,338			$ 43,351			119,032	(45)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,956						5,956
Other comprehensive income (loss)	12							12
Repurchase of common stock (in shares)				(2,831)
Repurchase of common stock	(70)			$ (70)
Exercise of stock options (in shares)				7,340
Exercise of stock options	57			$ 57
Common stock dividends	(2,084)						(2,084)
Earned ESOP shares, net of income taxes	7			$ 7
Stock option compensation expense			53		53
Balance at end of period (in shares) at Jun. 30, 2019				8,340,928
Balance at end of period at Jun. 30, 2019	166,269			$ 43,398		0	122,904	(33)	[1]
Balance at beginning of period (in shares) at Sep. 30, 2019				8,329,419
Balance at beginning of period at Sep. 30, 2019	171,067	[2]		$ 43,030		0	127,987	50	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,912						17,912
Other comprehensive income (loss)	(74)							(74)
Repurchase of common stock (in shares)				(56,601)
Repurchase of common stock	$ (1,238)			$ (1,238)
Exercise of stock options (in shares)	37,975			37,975
Exercise of stock options	$ 391			$ 391
Common stock dividends	(5,421)						(5,421)
Earned ESOP shares, net of income taxes	31			$ 31
Stock option compensation expense			138		138
Balance at end of period (in shares) at Jun. 30, 2020				8,310,793
Balance at end of period at Jun. 30, 2020	182,806			$ 42,352		0	140,478	(24)	[1]
Balance at beginning of period (in shares) at Mar. 31, 2020				8,309,193
Balance at beginning of period at Mar. 31, 2020	178,008			$ 42,258			135,929	(179)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,211						6,211
Other comprehensive income (loss)	155							155
Exercise of stock options (in shares)				1,600
Exercise of stock options	17			$ 17
Common stock dividends	(1,662)						(1,662)
Earned ESOP shares, net of income taxes	31			$ 31
Stock option compensation expense			$ 46		$ 46
Balance at end of period (in shares) at Jun. 30, 2020				8,310,793
Balance at end of period at Jun. 30, 2020	$ 182,806			$ 42,352		$ 0	$ 140,478	$ (24)	[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		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Number of Shares
Common stock dividends (in dollars per share)	$ 0.2	$ 0.25	$ 0.65	$ 0.63

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Thousands	9 Months Ended
	Jun. 30, 2020USD ($)		Jun. 30, 2019USD ($)
Cash flows from operating activities
Net income	$ 17,912		$ 17,685
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	3,200		0
Depreciation	1,163		1,232
Accretion of discount on purchased loans	(423)		(457)
Amortization of CDI	304		339
Earned ESOP shares	31		441
Stock option compensation expense	138		159
Net recoveries on investment securities	(113)		(34)
Change in fair value of investments in equity securities	(19)		(34)
Gain on sale of investment securities held to maturity	0		(47)
Gain on sales of OREO and other repossessed assets, net	(33)		(31)
Provision for OREO losses	25		23
Gain on sales of loans, net	(3,829)		(1,194)
(Gain) loss on sales/disposition of premises and equipment, net	98		(8)
Loans originated for sale	(114,073)		(48,542)
Proceeds from sales of loans	114,136		48,183
Amortization of servicing rights	599		476
Valuation adjustment on servicing rights	23		0
BOLI net earnings	(442)		(474)
BOLI death benefit in excess of cash surrender value	0		1,028
Increase in deferred loan origination fees	3,925		201
Net change in accrued interest receivable and other assets, and other liabilities and accrued expenses	(977)		659
Net cash provided by operating activities	21,449		17,565
Cash flows from investing activities
Net decrease (increase) in CDs held for investment	6,332		(14,921)
Proceeds from sale of investment securities available for sale	0		2,332
Proceeds from sale of investment securities held to maturity	0		2,937
Purchase of investment securities held to maturity	(9,754)		(13,229)
Purchase of investment securities available for sale	(23,366)		0
Proceeds from maturities and prepayments of investment securities held to maturity	10,480		5,266
Proceeds from maturities and prepayments of investment securities available for sale	3,856		906
Purchase of FHLB stock	(485)		(42)
Increase in loans receivable, net	(132,799)		(26,882)
Additions to premises and equipment	(1,661)		(2,040)
Proceeds from sales of premises and equipment	307		0
Cash acquired, net of cash consideration paid in business combination	0		14,284
Escrow deposit for business combination	0		6,900
Proceeds from death benefit on BOLI	0		2,059
Proceeds from sales of OREO and other repossessed assets	225		318
Net cash used in investing activities	(146,865)		(22,112)
Cash flows from financing activities
Net increase in deposits	250,313		31,491
FHLB borrowings	10,000		0
Proceeds from exercise of stock options	391		340
Repurchase of common stock	1,238		70
Payment of dividends	(5,421)		(5,243)
Net cash provided by financing activities	254,045		26,518
Net increase in cash and cash equivalents	128,629		21,971
Cash and cash equivalents, at beginning of period	143,015	[1]	148,864
Cash and cash equivalents, at end of period	271,644
Supplemental disclosure of cash flow information
Income taxes paid	5,165		3,845
Interest paid	3,648		3,247
Supplemental disclosure of non-cash investing activities
Loans transferred to OREO and other repossessed assets	0		91
Other comprehensive (loss) income related to investment securities	(74)		33
Operating lease liabilities arising from recording of ROU assets	2,889		$ 0	[1]
Business Combination (see Note 2)
Fair value of assets acquired	0
Fair value of liabilities assumed	$ 0
[1]	Derived from audited consolidated financial statements.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	9 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (a) Basis of Presentation: The accompanying unaudited consolidated financial statements for Timberland Bancorp, Inc. (the "Company") and its wholly-owned subsidiary, Timberland Bank (the "Bank") 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, 2019 (“2019 Form 10-K”). The unaudited consolidated results of operations for the nine months ended June 30, 2020 are not necessarily indicative of the results that may be expected for the entire fiscal year ending September 30, 2020. On October 1, 2018, the Company completed the acquisition of South Sound Bank, a Washington-state chartered bank, headquartered in Olympia, Washington ("South Sound Acquisition"). The Company acquired 100% of the outstanding common stock of South Sound Bank, and South Sound Bank was merged into the Bank. See Note 2 for additional information on the South Sound Acquisition. (b) Principles of Consolidation: The unaudited consolidated financial statements include the accounts of the Company and the Bank, 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. (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 June 30, 2020 presentation with no change to previously reported net income or total shareholders’ equity.

Business Combinations Business

Business Combinations Business Combinations	9 Months Ended
	Jun. 30, 2020
Business Combinations [Abstract]
Business Combinations	BUSINESS COMBINATION On October 1, 2018, the Company completed the South Sound Acquisition. The primary reason for the acquisition was to expand the Company's presence along Washington State's economically important I-5 corridor. Pursuant to the terms of the merger agreement, South Sound Bank shareholders received 0.746 of a share the Company's common stock and $5.68825 in cash per share of South Sound Bank common stock. The Company issued 904,826 shares of its common stock (valued at $28.27 million based on the Company's closing stock price on September 30, 2018 of $31.24 per share) and paid $6.90 million in cash in the transaction for total consideration paid of $35.17 million. The South Sound Acquisition constitutes a business combination as defined by GAAP, which establishes principles and requirements for how the acquirer in a business combination recognizes and measures in its financial statements the identifiable assets acquired and liabilities assumed. The Company was considered the acquirer in this transaction. Accordingly, the estimates of fair values of the acquired assets, including the identifiable intangible assets, and the assumed liabilities in the South Sound Acquisition were measured and recorded as of October 1, 2018. The excess of the total consideration paid over the fair value of the net assets acquired was allocated to goodwill. The South Sound Acquisition resulted in $9.48 million of goodwill. The goodwill arising from the transaction consists largely of the synergies and expected economies of scale from combining the operations of the Company and South Sound Bank. This goodwill is not deductible for tax purposes. In most instances, determining the estimated fair values of the acquired assets and assumed liabilities requires the Company to estimate cash flows expected to result from those assets and liabilities and to discount those cash flows at the appropriate rate of interest. Differences may arise between contractually required payments and the expected cash flows at the acquisition date due to items such as estimated credit losses, prepayments or early withdrawal, and other factors. One of the most significant of those determinations relates to the valuation of acquired loans. For such loans, the excess of cash flows expected at acquisition over the estimated fair value is recognized as interest income over the remaining lives of the loans. In accordance with GAAP, there was no carry-over of South Sound Bank's previously established allowance for loan losses. The following table summarizes the fair value of consideration paid, the estimated fair values of assets acquired and liabilities assumed as of the acquisition date, and the resulting goodwill relating to the transaction: At October 1, 2018 Book Value Fair Value Adjustment Estimated Fair Value (Dollars in thousands) Total acquisition consideration $ 35,170 Recognized amounts of identifiable assets acquired and liabilities assumed Identifiable assets acquired: Cash and cash equivalents $ 21,187 $ — 21,187 CDs held for investment 2,973 — 2,973 FHLB stock 205 — 205 Investment securities held to maturity 19,891 (189) 19,702 Investment securities available for sale 5,022 — 5,022 Loans receivable 123,627 (2,083) 121,544 Premises and equipment 3,225 112 3,337 OREO 25 — 25 Accrued interest receivable 554 — 554 BOLI 2,629 — 2,629 CDI — 2,483 2,483 Servicing rights 285 (4) 281 Other assets 1,087 (511) 576 Total assets 180,710 (192) 180,518 Liabilities assumed: Deposits 151,378 160 151,538 Other liabilities and accrued expenses 3,291 — 3,291 Total liabilities assumed 154,669 160 154,829 Total identifiable net assets acquired $ 26,041 $ (352) 25,689 Goodwill recognized $ 9,481 The acquired loan portfolio was valued using Level 3 inputs (see Note 10) and included the use of present value techniques, including cash flow estimates and incorporated assumptions that the Company believes marketplace participants would use in estimating fair values. Credit discounts were included in the determination of the fair value of the loans acquired; therefore, an allowance for loan losses was not recorded at the acquisition date. Acquired loans are evaluated upon acquisition and classified as either purchased credit-impaired ("PCI") or purchased non-credit-impaired. PCI loans reflect credit deterioration since origination such that it is probable at acquisition that the Company will be unable to collect all contractually required payments. The Company determined that PCI loans acquired in the South Sound Acquisition were insignificant. For purchased non-credit-impaired loans, the difference between the fair value and unpaid principal balance of the loan at the acquisition date is amortized or accreted to interest income over the life of the loans. Any subsequent deterioration in credit quality is recognized by recording an allowance for loan losses. CDI represents the future economic benefit of the potential cost savings from acquiring core deposits as part of a business combination compared to the cost of alternative funding sources. CDI is amortized to non-interest expense using an accelerated method based on an estimated runoff of related deposits over a period of ten years. CDI is evaluated for impairment whenever events or changes in circumstances indicate that its carrying amount may not be recoverable, with any changes in estimated useful life accounted for prospectively over the revised remaining life. The operating results of the Company for the three and nine months ended June 30, 2020 and 2019 include the operating results produced by the net assets acquired in the South Sound Acquisition since the October 1, 2018 acquisition date. The Company determined that the disclosure requirements related to the amounts of revenues and earnings from the net assets acquired in the South Sound Acquisition since the October 1, 2018 acquisition date is impracticable. The financial activity and operating results of the net assets acquired in the South Sound Acquisition were commingled with the Company's financial activity and operating results as of the acquisition date. During the nine months ended June 30, 2020, the Company incurred acquisition-related expenses of $69,000 related to the South Sound Acquisition, of which $67,000 is included in the data processing and telecommunications expense category and $2,000 is included in the professional fees expense category in the accompanying consolidated statement of income. During the nine months ended June 30, 2019, the Company incurred acquisition-related expenses of $447,000 related to the South Sound Acquisition, which are included in the professional fees expense category in the accompanying consolidated statement of income.

Investment Securities

Investment Securities	9 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and September 30, 2019 (dollars in thousands): Amortized Gross Gross Estimated June 30, 2020 Held to maturity Mortgage-backed securities ("MBS"): U.S. government agencies $ 30,413 $ 1,657 $ (12) $ 32,058 Private label residential 247 302 (1) 548 Total $ 30,660 $ 1,959 $ (13) $ 32,606 Available for sale MBS: U.S. government agencies $ 41,910 $ 33 $ (29) $ 41,914 Total $ 41,910 $ 33 $ (29) $ 41,914 September 30, 2019 Held to maturity MBS: U.S. government agencies $ 27,786 $ 999 $ (2) $ 28,783 Private label residential 317 490 (1) 806 U.S. Treasury and U.S. government agency securities 2,999 — (8) 2,991 Total $ 31,102 $ 1,489 $ (11) $ 32,580 Available for sale MBS: U.S. government agencies $ 22,418 $ 114 $ — $ 22,532 Total $ 22,418 $ 114 $ — $ 22,532 Held to maturity and available for sale investment securities with unrealized losses were as follows as of June 30, 2020 (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 $ 7,014 $ (11) 5 $ 41 $ (1) 4 $ 7,055 $ (12) Private label residential 7 — 1 11 (1) 2 18 (1) Total $ 7,021 $ (11) 6 $ 52 $ (2) 6 $ 7,073 $ (13) Available for sale MBS: U.S. government agencies $ 35,709 $ (29) 9 $ — $ — — $ 35,709 $ (29) Total $ 35,709 $ (29) 9 $ — $ — — $ 35,709 $ (29) Held to maturity investment securities with unrealized losses were as follows as of September 30, 2019 (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 $ 291 $ (1) 2 $ 76 $ (1) 6 $ 367 $ (2) Private label residential — — — 23 (1) 5 23 (1) U.S. Treasury and U.S. government agency securities — — — 2,991 (8) 1 2,991 (8) Total $ 291 $ (1) 2 $ 3,090 $ (10) 12 $ 3,381 $ (11) The Company has evaluated the investment securities in the above tables and has determined that the decline in their fair value is 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. Furthermore, as of June 30, 2020, management does not have the intent to sell any of the securities classified as available for sale where 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 June 30, 2020 and 2019: Range Weighted Minimum Maximum Average June 30, 2020 Constant prepayment rate 6.00 % 15.00 % 9.21 % Collateral default rate 2.00 % 19.96 % 10.21 % Loss severity rate — % 12.41 % 2.48 % June 30, 2019 Constant prepayment rate 6.00 % 15.00 % 11.52 % Collateral default rate — % 11.28 % 5.28 % Loss severity rate — % 78.00 % 37.73 % The following table presents the OTTI recoveries for the three and nine months ended June 30, 2020 and 2019 (dollars in thousands): Three Months Ended Three Months Ended Held To Available Held To Available Total recoveries $ 6 $ — $ 14 $ — Adjustment for portion of OTTI transferred from other comprehensive income (loss) before income taxes (1) — — — — Net recoveries recognized in earnings (2) $ 6 $ — $ 14 $ — Nine Months Ended Nine Months Ended Held To Available Held To Available Total recoveries $ 113 $ — $ 46 $ — Adjustment for portion of OTTI transferred from other comprehensive income (loss) before income taxes (1) — — (12) — Net recoveries recognized in earnings (2) $ 113 $ — $ 34 $ — _________________ (1) Represents OTTI related to all other factors. (2) 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 nine months ended June 30, 2020 and 2019 (dollars in thousands): Nine Months Ended June 30, 2020 2019 Beginning balance of credit loss $ 1,071 $ 1,153 Additions: Additional increases to the amount related to credit loss for which OTTI was previously recognized 2 13 Subtractions: Realized losses previously recorded as credit losses (65) (16) Recovery of prior credit loss (112) (47) Ending balance of credit loss $ 896 $ 1,103 During the nine months ended June 30, 2020, the Company recorded a $65,000 net realized loss (as a result of investment securities being deemed worthless) on nine held to maturity investment securities, all of which had been recognized previously as a credit loss. During the nine months ended June 30, 2019, the Company recorded a $16,000 net realized loss (as a result of investment securities being deemed worthless) on 17 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 $67.35 million and $18.59 million at June 30, 2020 and September 30, 2019, respectively. The contractual maturities of debt securities at June 30, 2020 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 $ — $ — $ 836 $ 834 Due after one year to five years 144 151 1,118 1,108 Due after five years to ten years 6,708 7,444 6,150 6,160 Due after ten years 23,808 25,011 33,806 33,812 Total $ 30,660 $ 32,606 $ 41,910 $ 41,914

Goodwill and CDI

Goodwill and CDI	9 Months Ended
	Jun. 30, 2020
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. 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, 2020. 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. The Company performed its fiscal year 2020 goodwill impairment test during the quarter ended June 30, 2020 with the assistance of an independent third-party firm specializing in goodwill impairment valuations for financial institutions. The third-party analysis was conducted as of May 31, 2020 and the step one test concluded that the reporting unit's fair value was more than its recorded value and, therefore, step two of the analysis was not necessary. Accordingly, the recorded value of goodwill as of May 31, 2020 was not impaired. As of June 30, 2020, management believes that there have been no events or changes in the circumstances since May 31, 2020 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 the recent decrease 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 sustained rather then 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 June 30, 2020 and September 30, 2019 remained unchanged at $15.13 million.

Loans Receivable And Allowance

Loans Receivable And Allowance For Loan Losses	9 Months Ended
	Jun. 30, 2020
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 at June 30, 2020 are reported net of unamortized discounts totaling $963,000. Loans receivable by portfolio segment consisted of the following at June 30, 2020 and September 30, 2019 (dollars in thousands): June 30, September 30, Amount Percent Amount Percent Mortgage loans: One- to four-family (1) $ 120,514 10.7 % $ 132,661 13.4 % Multi-family 79,468 7.0 76,036 7.7 Commercial 455,454 40.5 419,117 42.3 Construction - custom and owner/builder 134,709 11.9 128,848 13.0 Construction - speculative one- to four-family 12,136 1.2 16,445 1.7 Construction - commercial 33,166 2.9 39,566 4.0 Construction - multi-family 27,449 2.4 36,263 3.6 Construction - land development 6,132 0.5 2,404 0.2 Land 27,009 2.4 30,770 3.1 Total mortgage loans 896,037 79.5 882,110 89.0 Consumer loans: Home equity and second mortgage 34,405 3.0 40,190 4.1 Other 3,552 0.3 4,312 0.4 Total consumer loans 37,957 3.3 44,502 4.5 Commercial loans Commercial business 71,586 6.3 64,764 6.5 U.S. Small Business Administration ("SBA") Paycheck Protection Program ("PPP") loans 122,581 10.9 — — Total commercial business and SBA PPP loans 194,167 17.2 % 64,764 6.5 % Total loans receivable 1,128,161 100.0 % 991,376 100.0 % Less: Undisbursed portion of construction 95,785 92,226 Deferred loan origination fees, net 6,723 2,798 Allowance for loan losses 12,894 9,690 115,402 104,714 Loans receivable, net $ 1,012,759 $ 886,662 _____________________________ (1) Does not include one- to four-family loans held for sale totaling $9,837 and $6,071 at June 30, 2020 and September 30, 2019, respectively. Allowance for Loan Losses The following tables set forth information for the three and nine months ended June 30, 2020 and 2019 regarding activity in the allowance for loan losses by portfolio segment (dollars in thousands): Three Months Ended June 30, 2020 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,149 $ 14 $ — $ — $ 1,163 Multi-family 595 70 — — 665 Commercial 5,762 957 — — 6,719 Construction – custom and owner/builder 697 110 — — 807 Construction – speculative one- to four-family 204 (40) — — 164 Construction – commercial 423 (119) — — 304 Construction – multi-family 394 (76) — — 318 Construction – land development 80 27 — — 107 Land 678 (41) — 5 642 Consumer loans: Home equity and second mortgage 656 (24) — — 632 Other 78 (4) (1) — 73 Commercial business loans 1,174 126 — — 1,300 SBA PPP loans — — — — — Total $ 11,890 $ 1,000 $ (1) $ 5 $ 12,894 Nine Months Ended June 30, 2020 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One-to four-family $ 1,167 $ (7) $ — $ 3 $ 1,163 Multi-family 481 184 — — 665 Commercial 4,154 2,560 — 5 6,719 Construction – custom and owner/builder 755 47 — 5 807 Construction – speculative one- to four-family 212 (48) — — 164 Construction – commercial 338 (34) — — 304 Construction – multi-family 375 (57) — — 318 Construction – land development 67 40 — — 107 Land 697 (70) — 15 642 Consumer loans: Home equity and second mortgage 623 9 — — 632 Other 99 (17) (12) 3 73 Commercial business loans 722 593 (15) — 1,300 SBA PPP loans — — — — — Total $ 9,690 $ 3,200 $ (27) $ 31 $ 12,894 Three Months Ended June 30, 2019 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,154 $ (36) $ — $ — $ 1,118 Multi-family 470 (32) — — 438 Commercial 4,122 (70) — — 4,052 Construction – custom and owner/builder 666 36 — — 702 Construction – speculative one- to four-family 249 (28) — — 221 Construction – commercial 384 — — — 384 Construction – multi-family 272 95 — — 367 Construction – land development 244 (118) — — 126 Land 649 48 (46) 5 656 Consumer loans: Home equity and second mortgage 667 (21) (1) — 645 Other 112 (25) (1) 1 87 Commercial business loans 752 151 (93) 25 835 Total $ 9,741 $ — $ (141) $ 31 $ 9,631 Nine Months Ended June 30, 2019 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One-to four-family $ 1,086 $ (35) $ — $ 67 $ 1,118 Multi-family 433 5 — — 438 Commercial 4,248 (346) — 150 4,052 Construction – custom and owner/builder 671 31 — — 702 Construction – speculative one- to four-family 178 43 — — 221 Construction – commercial 563 (179) — — 384 Construction – multi-family 135 232 — — 367 Construction – land development 49 77 — — 126 Land 844 (155) (46) 13 656 Consumer loans: Home equity and second mortgage 649 1 (5) — 645 Other 117 (29) (4) 3 87 Commercial business loans 557 355 (102) 25 835 Total $ 9,530 $ — $ (157) $ 258 $ 9,631 The following tables present information on the loans evaluated individually and collectively for impairment in the allowance for loan losses by portfolio segment at June 30, 2020 and September 30, 2019 (dollars in thousands): Allowance for Loan Losses Recorded Investment in Loans Individually Collectively Total Individually Collectively Total June 30, 2020 Mortgage loans: One- to four-family $ — $ 1,163 $ 1,163 $ 1,410 $ 119,104 $ 120,514 Multi-family — 665 665 — 79,468 79,468 Commercial — 6,719 6,719 3,267 452,187 455,454 Construction – custom and owner/builder — 807 807 — 73,011 73,011 Construction – speculative one- to four-family — 164 164 — 7,412 7,412 Construction – commercial — 304 304 — 19,793 19,793 Construction – multi-family — 318 318 — 14,430 14,430 Construction – land development — 107 107 — 3,161 3,161 Land 25 617 642 186 26,823 27,009 Consumer loans: Home equity and second mortgage — 632 632 586 33,819 34,405 Other — 73 73 10 3,542 3,552 Commercial business loans 38 1,262 1,300 432 71,154 71,586 SBA PPP loans — — — — 122,581 122,581 Total $ 63 $ 12,831 $ 12,894 $ 5,891 $ 1,026,485 $ 1,032,376 September 30, 2019 Mortgage loans: One- to four-family $ — $ 1,167 $ 1,167 $ 1,192 $ 131,469 $ 132,661 Multi-family — 481 481 — 76,036 76,036 Commercial — 4,154 4,154 3,190 415,927 419,117 Construction – custom and owner/builder — 755 755 — 75,411 75,411 Construction – speculative one- to four-family — 212 212 — 10,779 10,779 Construction – commercial — 338 338 — 24,051 24,051 Construction – multi-family — 375 375 — 19,256 19,256 Construction – land development — 67 67 — 1,803 1,803 Land 27 670 697 204 30,566 30,770 Consumer loans: Home equity and second mortgage — 623 623 603 39,587 40,190 Other 17 82 99 23 4,289 4,312 Commercial business loans 128 594 722 725 64,039 64,764 Total $ 172 $ 9,518 $ 9,690 $ 5,937 $ 893,213 $ 899,150 The following tables present an analysis of loans by aging category and portfolio segment at June 30, 2020 and September 30, 2019 (dollars in thousands): 30–59 60-89 Non- Past Due Total Current Total June 30, 2020 Mortgage loans: One- to four-family $ — $ — $ 927 $ — $ 927 $ 119,587 $ 120,514 Multi-family — — — — — 79,468 79,468 Commercial — 537 875 — 1,412 454,042 455,454 Construction – custom and owner/builder — — — — — 73,011 73,011 Construction – speculative one- to four- family — — — — — 7,412 7,412 Construction – commercial — — — — — 19,793 19,793 Construction – multi-family — — — — — 14,430 14,430 Construction – land development — — — — — 3,161 3,161 Land — — 185 — 185 26,824 27,009 Consumer loans: Home equity and second mortgage — — 586 — 586 33,819 34,405 Other — — 10 — 10 3,542 3,552 Commercial business loans — — 432 — 432 71,154 71,586 SBA PPP loans — — — — — 122,581 122,581 Total $ — $ 537 $ 3,015 $ — $ 3,552 $ 1,028,824 $ 1,032,376 September 30, 2019 Mortgage loans: One- to four-family $ — $ 286 $ 699 $ — $ 985 $ 131,676 $ 132,661 Multi-family — — — — — 76,036 76,036 Commercial 94 218 779 — 1,091 418,026 419,117 Construction – custom and owner/ — — — — — 75,411 75,411 Construction – speculative one- to four- family — — — — — 10,779 10,779 Construction – commercial — — — — — 24,051 24,051 Construction – multi-family — — — — — 19,256 19,256 Construction – land development — — — — — 1,803 1,803 Land 5 193 204 — 402 30,368 30,770 Consumer loans: Home equity and second mortgage 94 — 603 — 697 39,493 40,190 Other — — 23 — 23 4,289 4,312 Commercial business loans — 2 725 — 727 64,037 64,764 Total $ 193 $ 699 $ 3,033 $ — $ 3,925 $ 895,225 $ 899,150 ______________________ (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. 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 June 30, 2020 and September 30, 2019, there were no loans classified as loss. The following tables present an analysis of loans by credit quality indicator and portfolio segment at June 30, 2020 and September 30, 2019 (dollars in thousands): Loan Grades June 30, 2020 Pass Watch Special Substandard Total Mortgage loans: One- to four-family $ 117,647 $ 1,377 $ 553 $ 937 $ 120,514 Multi-family 79,468 — — — 79,468 Commercial 445,544 7,936 572 1,402 455,454 Construction – custom and owner/builder 72,208 803 — — 73,011 Construction – speculative one- to four-family 7,412 — — — 7,412 Construction – commercial 19,793 — — — 19,793 Construction – multi-family 14,430 — — — 14,430 Construction – land development 3,035 — — 126 3,161 Land 24,713 1,527 584 185 27,009 Consumer loans: Home equity and second mortgage 33,867 54 — 484 34,405 Other 3,510 32 — 10 3,552 Commercial business loans 70,797 225 76 488 71,586 SBA PPP loans 122,581 — — — 122,581 Total $ 1,015,005 $ 11,954 $ 1,785 $ 3,632 $ 1,032,376 September 30, 2019 Mortgage loans: One- to four-family $ 129,748 $ 296 $ 562 $ 2,055 $ 132,661 Multi-family 76,036 — — — 76,036 Commercial 405,165 11,944 683 1,325 419,117 Construction – custom and owner/builder 75,178 233 — — 75,411 Construction – speculative one- to four-family 10,779 — — — 10,779 Construction – commercial 24,051 — — — 24,051 Construction – multi-family 19,256 — — — 19,256 Construction – land development 1,659 — — 144 1,803 Land 28,390 952 1,217 211 30,770 Consumer loans: Home equity and second mortgage 39,364 41 — 785 40,190 Other 4,257 33 — 22 4,312 Commercial business loans 63,669 232 85 778 64,764 Total $ 877,552 $ 13,731 $ 2,547 $ 5,320 $ 899,150 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 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 June 30, 2020 and for the three and nine months then ended (dollars in thousands): Recorded Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Quarter to Date ("QTD") Average Recorded Investment (1) Year to Date ("YTD") Average Recorded Investment (2) QTD Interest Income Recognized (1) YTD Interest Income Recognized (2) QTD Cash Basis Interest Income Recognized (1) YTD Cash Basis Interest Income Recognized (2) With no related allowance recorded: Mortgage loans: One- to four-family $ 1,411 $ 1,454 $ — $ 1,176 $ 1,244 $ 15 $ 36 $ 7 $ 25 Commercial 3,267 3,267 — 3,303 3,234 41 92 32 74 Land 53 103 — 55 58 — — — — Consumer loans: Home equity and second mortgage 586 586 — 584 588 — — — — Other 10 10 — 11 5 — — — — Commercial business loans 184 184 — 164 175 — — — — Subtotal 5,511 5,604 — 5,293 5,304 56 128 39 99 With an allowance recorded: Mortgage loans: One- to four-family — — — 243 121 — — — — Land 132 132 25 134 137 — — — — Consumer loans: Other — — — — 9 — — — — Commercial business loans 248 248 38 324 400 — — — — Subtotal 380 380 63 701 667 — — — — Total: Mortgage loans: One- to four-family 1,411 1,454 — 1,419 1,365 15 36 7 25 Commercial 3,267 3,267 — 3,303 3,234 41 92 32 74 Land 185 235 25 189 195 — — — — Consumer loans: Home equity and second mortgage 586 586 — 584 588 — — — — Other 10 10 — 11 14 — — — — Commercial business loans 432 432 38 488 575 — — — — Total $ 5,891 $ 5,984 $ 63 $ 5,994 $ 5,971 $ 56 $ 128 $ 39 $ 99 ______________________________________________ (1) For the three months ended June 30, 2020. (2) For the nine months ended June 30, 2020. 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 $ 1,192 $ 1,236 $ — $ 1,110 $ 71 $ 62 Commercial 3,190 3,190 — 2,920 227 192 Land 63 126 — 100 3 3 Consumer loans: Home equity and second mortgage 603 603 — 459 — — Commercial business loans 189 291 — 142 30 30 Subtotal 5,237 5,446 — 4,731 331 287 With an allowance recorded: Mortgage loans: Land 141 141 27 246 — — Consumer loans: Other 23 23 17 10 — — Commercial business loans 536 536 128 350 30 30 Subtotal 700 700 172 606 30 30 Total Mortgage loans: One- to four-family 1,192 1,236 — 1,110 71 62 Commercial 3,190 3,190 — 2,920 227 192 Land 204 267 27 346 3 3 Consumer loans: Home equity and second mortgage 603 603 — 459 — — Other 23 23 17 10 — — Commercial business loans 725 827 128 492 60 60 Total $ 5,937 $ 6,146 $ 172 $ 5,337 $ 361 $ 317 _____________________________________________ (1) For the year ended September 30, 2019. 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 $3.08 million and $3.27 million in TDRs included in impaired loans at June 30, 2020 and September 30, 2019, respectively, and had no commitments at these dates to lend additional funds on these loans. The allowance for loan losses allocated to TDRs at June 30, 2020 and September 30, 2019 was $25,000 and $56,000, respectively. There were no TDRs for which there was a payment default within the first 12 months of the modification during the three months ended June 30, 2020. 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. As of June 30, 2020, the Company had approved COVID-19 pandemic related loan modifications for 209 loans aggregating to $135.83 million, or 13.2% of loans receivable. 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 11 - Recent Accounting Pronouncements. The following table sets forth information with respect to total COVID-19 loan modifications as of June 30, 2020 (dollars in thousands): COVID-19 Loan Modifications Mortgage loans Count Balance Percent One- to four-family 15 $ 6,760 5.0 % Multi-family 3 2,900 2.1 Commercial 114 105,680 77.8 Construction 2 2,924 2.2 Land 7 2,996 2.2 Total mortgage loans 141 121,260 89.3 Consumer loans Home equity and second mortgage 6 307 0.2 Other 4 75 0.1 Total consumer loans 10 382 0.3 Commercial loans 58 14,191 10.4 Total COVID-19 Modifications 209 $ 135,833 100.0 % The following tables set forth information with respect to the Company’s TDRs by interest accrual status as of June 30, 2020 and September 30, 2019 (dollars in thousands): June 30, 2020 Accruing Non- Total Mortgage loans: One- to four-family $ 484 $ — $ 484 Commercial 2,392 — 2,392 Land — 132 132 Consumer loans: Home equity and second mortgage — 75 75 Total $ 2,876 $ 207 $ 3,083 September 30, 2019 Accruing Non- Total Mortgage loans: One- to four-family $ 493 $ 141 $ 634 Commercial 2,410 — 2,410 Consumer loans: Home equity and second mortgage — 82 82 Commercial business loans — 143 143 Total $ 2,903 $ 366 $ 3,269 There were no new TDRs during the nine months ended June 30, 2020. There was one new TDR during the year ended September 30, 2019. The following table sets forth information with respect to the Company's TDRs, by portfolio segment, during the year ended September 30, 2019 (dollars in thousands): 2019 Number of Pre-Modification Post- Modification End of Home equity and second mortgage loan (1) 1 $ 85 $ 85 $ 82 Total 1 $ 85 $ 85 $ 82 (1) Modification was a result of a reduction in interest rate and monthly payment.

Leases

Leases	9 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	LEASES The Company adopted Accounting Standards Codification ("ASC") 842 ("ASC 842") on October 1, 2019 and began recording operating lease liabilities and operating lease ROU assets on 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 twelve 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 and nine months ended June 30, 2020 (dollars in thousands): Three Months Ended June 30, 2020 Nine Months Ended June 30, 2020 Lease cost: Operating lease cost $ 118 $ 284 Short-term lease cost — — Total lease cost $ 118 284 The following table provides supplemental information to operating leases at or for the three and nine months ended June 30, 2020 (dollars in thousands): At or For the Three Months Ended June 30, 2020 At or For the Nine Months Ended June 30, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 80 $ 239 Weighted average remaining lease term-operating leases 9.5 years 9.5 years Weighted average discount rate-operating leases 2.22 % 2.22 % The Company's leases typically do not contain a discount rate implicit in the lease contract. As an alternative, the weighted average discount rate used to value the future value of lease payments due in calculating the value of the ROU asset and lease 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 June 30, 2020 for future fiscal years are as follows (dollars in thousands): Remainder of 2020 $ 80 2021 327 2022 342 2023 310 2024 313 Thereafter 1,639 Total lease payments 3,011 Less imputed interest 316 Total $ 2,695

Net Income Per Common Share

Net Income Per Common Share	9 Months Ended
	Jun. 30, 2020
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. Shares owned by the Bank’s ESOP that had not been allocated were not considered to be outstanding for the purpose of computing basic and diluted net income per common share. At June 30, 2020 and June 30, 2019, all shares had been allocated under the Bank's ESOP. Information regarding the calculation of basic and diluted net income per common share for the three and nine months ended June 30, 2020 and 2019 is as follows (dollars in thousands, except per share amounts): Three Months Ended June 30, Nine Months Ended June 30, 2020 2019 2020 2019 Numerator – net income $ 6,211 $ 5,956 $ 17,912 $ 17,685 Denominator – weighted average common shares outstanding 8,309,947 8,338,637 8,331,908 8,313,913 Basic net income per common share $ 0.75 $ 0.71 $ 2.15 $ 2.13 Diluted net income per common share computation Numerator – net income $ 6,211 $ 5,956 $ 17,912 $ 17,685 Denominator – weighted average common shares outstanding 8,309,947 8,338,637 8,331,908 8,313,913 Effect of dilutive stock options (1) 69,036 143,723 105,122 154,299 Weighted average common shares outstanding - assuming dilution 8,378,983 8,482,360 8,437,030 8,468,212 Diluted net income per common share $ 0.74 $ 0.70 $ 2.12 $ 2.09 ____________________________________________ (1) For the three and nine months ended June 30, 2020, average options to purchase 135,212 and 126,052 shares of common stock were outstanding but not included in the computation of diluted net income per share because their effect would have been anti-dilutive. For the three and nine months ended June 30, 2019, average options to purchase 102,050 and 102,353 shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per share because their effect would have been anti-dilutive.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Accumulated Other Comprehensive Loss	ACCUMULATED OTHER COMPREHENSIVE LOSS The changes in accumulated other comprehensive loss ("AOCI") by component during the three and nine months ended June 30, 2020 and 2019 are as follows (dollars in thousands): Three Months Ended June 30, 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 $ (151) $ (28) $ (179) Other comprehensive (loss) income 154 1 155 Balance of AOCI at the end of period $ 3 $ (27) $ (24) Nine Months Ended June 30, 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 $ 90 $ (40) $ 50 Other comprehensive (loss) income (87) 13 (74) Balance of AOCI at the end of period $ 3 $ (27) $ (24) Three Months Ended June 30, 2019 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 $ 3 $ (48) $ (45) Other comprehensive (loss) income 9 3 12 Balance of AOCI at the end of period $ 12 $ (45) $ (33) Nine Months Ended June 30, 2019 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 $ (58) $ (71) $ (129) Other comprehensive (loss) income 7 26 33 Adoption of ASU 2016-01 63 $ — 63 Balance of AOCI at the end of period $ 12 $ (45) $ (33) __________________________ (1) All amounts are net of income taxes.

Stock Compensation Plans

Stock Compensation Plans	9 Months Ended
	Jun. 30, 2020
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, which was approved by shareholders on January 28, 2020, 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 to employees, officers, 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 ten At both June 30, 2020 and 2019, there were no unvested restricted stock awards. There were no restricted stock grants awarded during the nine months ended June 30 , 2020 and 2019. Stock option activity for the nine months ended June 30, 2020 and 2019 is summarized as follows: Nine Months Ended June 30, 2020 Nine Months Ended June 30, 2019 Number of Shares Weighted Number of Shares Weighted Options outstanding, beginning of period 378,304 $ 18.15 380,820 $ 16.03 Exercised (37,975) 10.31 (37,756) 9.00 Granted 1,000 26.50 — — Forfeited (9,050) 25.10 (3,900) 18.63 Options outstanding, end of period 332,279 $ 18.88 339,164 $ 16.79 The weighted average assumptions for options granted during the nine months ended June 30, 2020 were as follows: Expected volatility 29 % Expected life (in years) 5 Expected dividend yield 3.36 % Risk free interest rate 1.61 % Grant date fair value per share $ 4.98 The aggregate intrinsic value of options exercised during the nine months ended June 30, 2020 and 2019 was $640,000 and $751,000, respectively. At June 30, 2020, there were 141,570 unvested options with an aggregate grant date fair value of $559,000, all of which the Company assumes will vest. The aggregate intrinsic value of unvested options at June 30, 2020 was $118,000. There were 13,100 options vested during the nine months ended June 30, 2020. At June 30, 2019, there were 155,750 unvested options with an aggregate grant date fair value of $485,000. There were 37,300 options with an aggregate grant date fair value of $88,000 that vested during the nine months ended June 30, 2019. Additional information regarding options outstanding at June 30, 2020 is as follows: Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $ 4.01 - 4.55 1,000 $ 4.01 1.4 1,000 $ 4.01 1.4 5.86 - 6.00 19,100 5.97 2.3 19,100 5.97 2.3 9.00 37,425 9.00 3.3 37,425 9.00 3.3 10.26 - 10.71 89,464 10.59 4.8 80,414 10.58 4.8 15.67 42,800 15.67 6.3 23,000 15.67 6.3 26.50 - 27.14 46,640 27.13 9.3 — N/A N/A 29.69 53,000 29.69 7.3 21,200 29.69 7.3 31.80 42,850 31.80 8.3 8,570 31.80 8.3 332,279 $ 18.88 6.1 190,709 $ 13.46 4.8 The aggregate intrinsic value of options outstanding at June 30, 2020 and 2019 was $1.38 million and $4.53 million , respectively. As of June 30, 2020, unrecognized compensation cost related to unvested stock options was $466,000, which is expected to be recognized over a weighted average life of 2.15 years.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Jun. 30, 2020
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 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 June 30, 2020 and September 30, 2019. The Company's assets measured at estimated fair value on a recurring basis at June 30, 2020 and September 30, 2019 were as follows (dollars in thousands): June 30, 2020 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 41,914 $ — $ 41,914 Investments in equity securities Mutual funds 977 — — 977 Total $ 977 $ 41,914 $ — $ 42,891 September 30, 2019 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 22,532 $ — $ 22,532 Investments in equity securities Mutual funds 958 — — 958 Total $ 958 $ 22,532 $ — $ 23,490 There were no transfers among Level 1, Level 2 and Level 3 during the nine months ended June 30, 2020 and the year ended September 30, 2019. 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 comparables included in the appraisal and known changes in the market and in the 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 June 30, 2020 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 107 Consumer loans: Commercial business loans — — 210 Total impaired loans — — 317 OREO and other repossessed assets — — 1,466 Total $ — $ — $ 1,783 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 June 30, 2020 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 317 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 1,466 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, 2019 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 114 Consumer loans: Other — — 6 Commercial business loans — — 408 Total impaired loans — — 528 Investment securities – held to maturity: MBS - private label residential — 2 — OREO and other repossessed assets — — 1,683 Total $ — $ 2 $ 2,211 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, 2019 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 528 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 1,683 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 represented fair value for these types of items as of June 30, 2020 and September 30, 2019. 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 ASU No. 2016-01, which the Company adopted on October 1, 2018 on a prospective basis, 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 June 30, 2020 and September 30, 2019 (dollars in thousands): June 30, 2020 Fair Value Measurements Using: Recorded Estimated Fair Value Financial assets Cash and cash equivalents $ 271,644 $ 271,644 $ 271,644 $ — $ — CDs held for investment 72,014 72,014 72,014 — — Investment securities 72,574 74,520 — 74,520 — Investments in equity securities 977 977 977 — — FHLB stock 1,922 1,922 1,922 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 9,837 10,246 10,246 — — Loans receivable, net 1,012,759 1,034,204 — — 1,034,204 Accrued interest receivable 4,614 4,614 4,614 — — Financial liabilities Certificates of deposit 163,926 166,585 — — 166,585 FHLB borrowings 10,000 10,125 — — 10,125 Accrued interest payable 313 313 313 — — September 30, 2019 Fair Value Measurements Using: Recorded Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 143,015 $ 143,015 $ 143,015 $ — $ — CDs held for investment 78,346 78,346 78,346 — — Investment securities 53,634 55,112 3,949 51,163 — Investments in equity securities 958 958 958 — — FHLB stock 1,437 1,437 1,437 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 6,071 6,260 6,260 — — Loans receivable, net 886,662 892,495 — — 892,495 Accrued interest receivable 3,598 3,598 3,598 — — Financial liabilities Certificates of deposit 165,655 166,852 — — 166,852 Accrued interest payable 333 333 333 — —

Revenue from Contracts with Cus

Revenue from Contracts with Customers Revenue from Contracts with Customers	9 Months Ended
	Jun. 30, 2020
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 in 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 in the scope of ASC 606 is recognized in non-interest income with the exception of gains on sale of OREO and gains on sales/disposition of premises and equipment, which are included in non-interest expense. 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 per 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)	9 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation:  The accompanying unaudited consolidated financial statements for Timberland Bancorp, Inc. (the "Company") and its wholly-owned subsidiary, Timberland Bank (the "Bank") 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, 2019 (“2019 Form 10-K”).  The unaudited consolidated results of operations for the nine months ended June 30, 2020 are not necessarily indicative of the results that may be expected for the entire fiscal year ending September 30, 2020.
Principles of Consolidation	Principles of Consolidation:  The unaudited consolidated financial statements include the accounts of the Company and the Bank, 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.
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 June 30, 2020 presentation with no change to previously reported net income or total shareholders’ equity.
Recent Accounting Pronouncements	In January 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . ASU 2016-01 generally requires equity investments - except those accounted for under the valuation method of accounting or those that result in consolidation of the investee - to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. ASU 2016-01 is intended to simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. ASU 2016-01 also eliminates certain disclosures related to the fair value of financial instruments and requires entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. ASU 2016-01 was effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company adopted ASU 2016-01 effective October 1, 2018. As required by ASU 2016-01, on October 1, 2018 the Company recorded a one-time cumulative effect adjustment of $63,000 representing net unrealized losses on equity securities (mutual funds) between accumulated other comprehensive loss and retained earnings on the accompanying consolidated balance sheet. Additionally, the fair values of financial instruments for disclosure purposes were computed using an exit price notion and deposits with no stated maturity are no longer included in the fair value disclosures in Note 10. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which created FASB Accounting Standards Codification ("ASC") Topic 842 ("ASC 842") and is intended to increase transparency and comparability among organizations by requiring the recognition of lease assets and lease liabilities on the balance sheet and disclosure of key information about leasing arrangements. The principal change required by ASC 842 relates to lessee accounting, and is that for operating leases, a lessee is required to (1) recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position, (2) recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term generally on a straight-line basis, and (3) classify all cash payments within operating activities in the statement of cash flows. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. ASC 842 also changes disclosure requirements related to leasing activities and requires certain qualitative disclosures along with specific quantitative disclosures. ASC 842 also provides an optional transition method for adoption, under which an entity initially applies ASC 842 at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in which it adopts ASC 842 will continue to be in accordance with current GAAP. ASC 842 was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. The Company adopted the provisions of ASC 842 effective October 1, 2019 utilizing the optional transition method and will not restate comparative periods. The Company also elected the package of practical expedients permitted under ASC 842's transition guidance, which allows the Company to carryforward its historical lease classifications and its assessment as to whether a contract is or contains a lease. The Company also elected to not recognize lease assets and lease liabilities for leases with an initial term of 12 months or less. As a result of adopting ASC 842, total other assets and other liabilities increased by $2.89 million on October 1, 2019. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses , as amended by ASU 2018-19, ASU 2019-04 and ASU 2019-05. This ASU 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, this ASU 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 debt securities and loans. ASU 2016-13 retains many of the current disclosure requirements in GAAP and expands certain disclosure requirements. As a smaller reporting company, ASU 2016-13 is effective for the Company 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 other-than-temporary impairment 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 ensure it is fully compliant with the amendments at the adoption date. At this time, the Company anticipates 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 will be effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early application of this ASU is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of ASU 2017-04 is not expected to have a material impact on the Company's future consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. This ASU shortens the amortization period for certain callable debt securities held at a premium to the earliest call date. ASU 2017-08 was effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2018. The Company adopted ASU 2017-08 effective October 1, 2019 and it did not have a material impact on the Company's consolidated financial statements.
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 in 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 in the scope of ASC 606 is recognized in non-interest income with the exception of gains on sale of OREO and gains on sales/disposition of premises and equipment, which are included in non-interest expense. 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 per 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.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Jun. 30, 2020
Business Combinations [Abstract]
Schedule of Business Acquisitions	The following table summarizes the fair value of consideration paid, the estimated fair values of assets acquired and liabilities assumed as of the acquisition date, and the resulting goodwill relating to the transaction: At October 1, 2018 Book Value Fair Value Adjustment Estimated Fair Value (Dollars in thousands) Total acquisition consideration $ 35,170 Recognized amounts of identifiable assets acquired and liabilities assumed Identifiable assets acquired: Cash and cash equivalents $ 21,187 $ — 21,187 CDs held for investment 2,973 — 2,973 FHLB stock 205 — 205 Investment securities held to maturity 19,891 (189) 19,702 Investment securities available for sale 5,022 — 5,022 Loans receivable 123,627 (2,083) 121,544 Premises and equipment 3,225 112 3,337 OREO 25 — 25 Accrued interest receivable 554 — 554 BOLI 2,629 — 2,629 CDI — 2,483 2,483 Servicing rights 285 (4) 281 Other assets 1,087 (511) 576 Total assets 180,710 (192) 180,518 Liabilities assumed: Deposits 151,378 160 151,538 Other liabilities and accrued expenses 3,291 — 3,291 Total liabilities assumed 154,669 160 154,829 Total identifiable net assets acquired $ 26,041 $ (352) 25,689 Goodwill recognized $ 9,481

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and September 30, 2019 (dollars in thousands): Amortized Gross Gross Estimated June 30, 2020 Held to maturity Mortgage-backed securities ("MBS"): U.S. government agencies $ 30,413 $ 1,657 $ (12) $ 32,058 Private label residential 247 302 (1) 548 Total $ 30,660 $ 1,959 $ (13) $ 32,606 Available for sale MBS: U.S. government agencies $ 41,910 $ 33 $ (29) $ 41,914 Total $ 41,910 $ 33 $ (29) $ 41,914 September 30, 2019 Held to maturity MBS: U.S. government agencies $ 27,786 $ 999 $ (2) $ 28,783 Private label residential 317 490 (1) 806 U.S. Treasury and U.S. government agency securities 2,999 — (8) 2,991 Total $ 31,102 $ 1,489 $ (11) $ 32,580 Available for sale MBS: U.S. government agencies $ 22,418 $ 114 $ — $ 22,532 Total $ 22,418 $ 114 $ — $ 22,532
Unrealized Gain (Loss) on Investments	Held to maturity and available for sale investment securities with unrealized losses were as follows as of June 30, 2020 (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 $ 7,014 $ (11) 5 $ 41 $ (1) 4 $ 7,055 $ (12) Private label residential 7 — 1 11 (1) 2 18 (1) Total $ 7,021 $ (11) 6 $ 52 $ (2) 6 $ 7,073 $ (13) Available for sale MBS: U.S. government agencies $ 35,709 $ (29) 9 $ — $ — — $ 35,709 $ (29) Total $ 35,709 $ (29) 9 $ — $ — — $ 35,709 $ (29) Held to maturity investment securities with unrealized losses were as follows as of September 30, 2019 (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 $ 291 $ (1) 2 $ 76 $ (1) 6 $ 367 $ (2) Private label residential — — — 23 (1) 5 23 (1) U.S. Treasury and U.S. government agency securities — — — 2,991 (8) 1 2,991 (8) Total $ 291 $ (1) 2 $ 3,090 $ (10) 12 $ 3,381 $ (11)
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 June 30, 2020 and 2019: Range Weighted Minimum Maximum Average June 30, 2020 Constant prepayment rate 6.00 % 15.00 % 9.21 % Collateral default rate 2.00 % 19.96 % 10.21 % Loss severity rate — % 12.41 % 2.48 % June 30, 2019 Constant prepayment rate 6.00 % 15.00 % 11.52 % Collateral default rate — % 11.28 % 5.28 % Loss severity rate — % 78.00 % 37.73 %
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table presents the OTTI recoveries for the three and nine months ended June 30, 2020 and 2019 (dollars in thousands): Three Months Ended Three Months Ended Held To Available Held To Available Total recoveries $ 6 $ — $ 14 $ — Adjustment for portion of OTTI transferred from other comprehensive income (loss) before income taxes (1) — — — — Net recoveries recognized in earnings (2) $ 6 $ — $ 14 $ — Nine Months Ended Nine Months Ended Held To Available Held To Available Total recoveries $ 113 $ — $ 46 $ — Adjustment for portion of OTTI transferred from other comprehensive income (loss) before income taxes (1) — — (12) — Net recoveries recognized in earnings (2) $ 113 $ — $ 34 $ — _________________ (1) Represents OTTI related to all other factors. (2) 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 nine months ended June 30, 2020 and 2019 (dollars in thousands): Nine Months Ended June 30, 2020 2019 Beginning balance of credit loss $ 1,071 $ 1,153 Additions: Additional increases to the amount related to credit loss for which OTTI was previously recognized 2 13 Subtractions: Realized losses previously recorded as credit losses (65) (16) Recovery of prior credit loss (112) (47) Ending balance of credit loss $ 896 $ 1,103
Schedule of Contractual Maturities of Debt Securities	The contractual maturities of debt securities at June 30, 2020 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 $ — $ — $ 836 $ 834 Due after one year to five years 144 151 1,118 1,108 Due after five years to ten years 6,708 7,444 6,150 6,160 Due after ten years 23,808 25,011 33,806 33,812 Total $ 30,660 $ 32,606 $ 41,910 $ 41,914

Loans Receivable And Allowanc_2

Loans Receivable And Allowance For Loan Losses (Tables)	9 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and September 30, 2019 (dollars in thousands): June 30, September 30, Amount Percent Amount Percent Mortgage loans: One- to four-family (1) $ 120,514 10.7 % $ 132,661 13.4 % Multi-family 79,468 7.0 76,036 7.7 Commercial 455,454 40.5 419,117 42.3 Construction - custom and owner/builder 134,709 11.9 128,848 13.0 Construction - speculative one- to four-family 12,136 1.2 16,445 1.7 Construction - commercial 33,166 2.9 39,566 4.0 Construction - multi-family 27,449 2.4 36,263 3.6 Construction - land development 6,132 0.5 2,404 0.2 Land 27,009 2.4 30,770 3.1 Total mortgage loans 896,037 79.5 882,110 89.0 Consumer loans: Home equity and second mortgage 34,405 3.0 40,190 4.1 Other 3,552 0.3 4,312 0.4 Total consumer loans 37,957 3.3 44,502 4.5 Commercial loans Commercial business 71,586 6.3 64,764 6.5 U.S. Small Business Administration ("SBA") Paycheck Protection Program ("PPP") loans 122,581 10.9 — — Total commercial business and SBA PPP loans 194,167 17.2 % 64,764 6.5 % Total loans receivable 1,128,161 100.0 % 991,376 100.0 % Less: Undisbursed portion of construction 95,785 92,226 Deferred loan origination fees, net 6,723 2,798 Allowance for loan losses 12,894 9,690 115,402 104,714 Loans receivable, net $ 1,012,759 $ 886,662 _____________________________ (1) Does not include one- to four-family loans held for sale totaling $9,837 and $6,071 at June 30, 2020 and September 30, 2019, respectively.
Schedule of Allowance for Loan Losses	The following tables set forth information for the three and nine months ended June 30, 2020 and 2019 regarding activity in the allowance for loan losses by portfolio segment (dollars in thousands): Three Months Ended June 30, 2020 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,149 $ 14 $ — $ — $ 1,163 Multi-family 595 70 — — 665 Commercial 5,762 957 — — 6,719 Construction – custom and owner/builder 697 110 — — 807 Construction – speculative one- to four-family 204 (40) — — 164 Construction – commercial 423 (119) — — 304 Construction – multi-family 394 (76) — — 318 Construction – land development 80 27 — — 107 Land 678 (41) — 5 642 Consumer loans: Home equity and second mortgage 656 (24) — — 632 Other 78 (4) (1) — 73 Commercial business loans 1,174 126 — — 1,300 SBA PPP loans — — — — — Total $ 11,890 $ 1,000 $ (1) $ 5 $ 12,894 Nine Months Ended June 30, 2020 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One-to four-family $ 1,167 $ (7) $ — $ 3 $ 1,163 Multi-family 481 184 — — 665 Commercial 4,154 2,560 — 5 6,719 Construction – custom and owner/builder 755 47 — 5 807 Construction – speculative one- to four-family 212 (48) — — 164 Construction – commercial 338 (34) — — 304 Construction – multi-family 375 (57) — — 318 Construction – land development 67 40 — — 107 Land 697 (70) — 15 642 Consumer loans: Home equity and second mortgage 623 9 — — 632 Other 99 (17) (12) 3 73 Commercial business loans 722 593 (15) — 1,300 SBA PPP loans — — — — — Total $ 9,690 $ 3,200 $ (27) $ 31 $ 12,894 Three Months Ended June 30, 2019 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One- to four-family $ 1,154 $ (36) $ — $ — $ 1,118 Multi-family 470 (32) — — 438 Commercial 4,122 (70) — — 4,052 Construction – custom and owner/builder 666 36 — — 702 Construction – speculative one- to four-family 249 (28) — — 221 Construction – commercial 384 — — — 384 Construction – multi-family 272 95 — — 367 Construction – land development 244 (118) — — 126 Land 649 48 (46) 5 656 Consumer loans: Home equity and second mortgage 667 (21) (1) — 645 Other 112 (25) (1) 1 87 Commercial business loans 752 151 (93) 25 835 Total $ 9,741 $ — $ (141) $ 31 $ 9,631 Nine Months Ended June 30, 2019 Beginning Provision for Charge- Recoveries Ending Mortgage loans: One-to four-family $ 1,086 $ (35) $ — $ 67 $ 1,118 Multi-family 433 5 — — 438 Commercial 4,248 (346) — 150 4,052 Construction – custom and owner/builder 671 31 — — 702 Construction – speculative one- to four-family 178 43 — — 221 Construction – commercial 563 (179) — — 384 Construction – multi-family 135 232 — — 367 Construction – land development 49 77 — — 126 Land 844 (155) (46) 13 656 Consumer loans: Home equity and second mortgage 649 1 (5) — 645 Other 117 (29) (4) 3 87 Commercial business loans 557 355 (102) 25 835 Total $ 9,530 $ — $ (157) $ 258 $ 9,631
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 June 30, 2020 and September 30, 2019 (dollars in thousands): Allowance for Loan Losses Recorded Investment in Loans Individually Collectively Total Individually Collectively Total June 30, 2020 Mortgage loans: One- to four-family $ — $ 1,163 $ 1,163 $ 1,410 $ 119,104 $ 120,514 Multi-family — 665 665 — 79,468 79,468 Commercial — 6,719 6,719 3,267 452,187 455,454 Construction – custom and owner/builder — 807 807 — 73,011 73,011 Construction – speculative one- to four-family — 164 164 — 7,412 7,412 Construction – commercial — 304 304 — 19,793 19,793 Construction – multi-family — 318 318 — 14,430 14,430 Construction – land development — 107 107 — 3,161 3,161 Land 25 617 642 186 26,823 27,009 Consumer loans: Home equity and second mortgage — 632 632 586 33,819 34,405 Other — 73 73 10 3,542 3,552 Commercial business loans 38 1,262 1,300 432 71,154 71,586 SBA PPP loans — — — — 122,581 122,581 Total $ 63 $ 12,831 $ 12,894 $ 5,891 $ 1,026,485 $ 1,032,376 September 30, 2019 Mortgage loans: One- to four-family $ — $ 1,167 $ 1,167 $ 1,192 $ 131,469 $ 132,661 Multi-family — 481 481 — 76,036 76,036 Commercial — 4,154 4,154 3,190 415,927 419,117 Construction – custom and owner/builder — 755 755 — 75,411 75,411 Construction – speculative one- to four-family — 212 212 — 10,779 10,779 Construction – commercial — 338 338 — 24,051 24,051 Construction – multi-family — 375 375 — 19,256 19,256 Construction – land development — 67 67 — 1,803 1,803 Land 27 670 697 204 30,566 30,770 Consumer loans: Home equity and second mortgage — 623 623 603 39,587 40,190 Other 17 82 99 23 4,289 4,312 Commercial business loans 128 594 722 725 64,039 64,764 Total $ 172 $ 9,518 $ 9,690 $ 5,937 $ 893,213 $ 899,150
Past Due Status of Loans Receivable	The following tables present an analysis of loans by aging category and portfolio segment at June 30, 2020 and September 30, 2019 (dollars in thousands): 30–59 60-89 Non- Past Due Total Current Total June 30, 2020 Mortgage loans: One- to four-family $ — $ — $ 927 $ — $ 927 $ 119,587 $ 120,514 Multi-family — — — — — 79,468 79,468 Commercial — 537 875 — 1,412 454,042 455,454 Construction – custom and owner/builder — — — — — 73,011 73,011 Construction – speculative one- to four- family — — — — — 7,412 7,412 Construction – commercial — — — — — 19,793 19,793 Construction – multi-family — — — — — 14,430 14,430 Construction – land development — — — — — 3,161 3,161 Land — — 185 — 185 26,824 27,009 Consumer loans: Home equity and second mortgage — — 586 — 586 33,819 34,405 Other — — 10 — 10 3,542 3,552 Commercial business loans — — 432 — 432 71,154 71,586 SBA PPP loans — — — — — 122,581 122,581 Total $ — $ 537 $ 3,015 $ — $ 3,552 $ 1,028,824 $ 1,032,376 September 30, 2019 Mortgage loans: One- to four-family $ — $ 286 $ 699 $ — $ 985 $ 131,676 $ 132,661 Multi-family — — — — — 76,036 76,036 Commercial 94 218 779 — 1,091 418,026 419,117 Construction – custom and owner/ — — — — — 75,411 75,411 Construction – speculative one- to four- family — — — — — 10,779 10,779 Construction – commercial — — — — — 24,051 24,051 Construction – multi-family — — — — — 19,256 19,256 Construction – land development — — — — — 1,803 1,803 Land 5 193 204 — 402 30,368 30,770 Consumer loans: Home equity and second mortgage 94 — 603 — 697 39,493 40,190 Other — — 23 — 23 4,289 4,312 Commercial business loans — 2 725 — 727 64,037 64,764 Total $ 193 $ 699 $ 3,033 $ — $ 3,925 $ 895,225 $ 899,150 ______________________ (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 June 30, 2020 and September 30, 2019 (dollars in thousands): Loan Grades June 30, 2020 Pass Watch Special Substandard Total Mortgage loans: One- to four-family $ 117,647 $ 1,377 $ 553 $ 937 $ 120,514 Multi-family 79,468 — — — 79,468 Commercial 445,544 7,936 572 1,402 455,454 Construction – custom and owner/builder 72,208 803 — — 73,011 Construction – speculative one- to four-family 7,412 — — — 7,412 Construction – commercial 19,793 — — — 19,793 Construction – multi-family 14,430 — — — 14,430 Construction – land development 3,035 — — 126 3,161 Land 24,713 1,527 584 185 27,009 Consumer loans: Home equity and second mortgage 33,867 54 — 484 34,405 Other 3,510 32 — 10 3,552 Commercial business loans 70,797 225 76 488 71,586 SBA PPP loans 122,581 — — — 122,581 Total $ 1,015,005 $ 11,954 $ 1,785 $ 3,632 $ 1,032,376 September 30, 2019 Mortgage loans: One- to four-family $ 129,748 $ 296 $ 562 $ 2,055 $ 132,661 Multi-family 76,036 — — — 76,036 Commercial 405,165 11,944 683 1,325 419,117 Construction – custom and owner/builder 75,178 233 — — 75,411 Construction – speculative one- to four-family 10,779 — — — 10,779 Construction – commercial 24,051 — — — 24,051 Construction – multi-family 19,256 — — — 19,256 Construction – land development 1,659 — — 144 1,803 Land 28,390 952 1,217 211 30,770 Consumer loans: Home equity and second mortgage 39,364 41 — 785 40,190 Other 4,257 33 — 22 4,312 Commercial business loans 63,669 232 85 778 64,764 Total $ 877,552 $ 13,731 $ 2,547 $ 5,320 $ 899,150
Impaired Loans Receivable	The following table is a summary of information related to impaired loans by portfolio segment as of June 30, 2020 and for the three and nine months then ended (dollars in thousands): Recorded Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Quarter to Date ("QTD") Average Recorded Investment (1) Year to Date ("YTD") Average Recorded Investment (2) QTD Interest Income Recognized (1) YTD Interest Income Recognized (2) QTD Cash Basis Interest Income Recognized (1) YTD Cash Basis Interest Income Recognized (2) With no related allowance recorded: Mortgage loans: One- to four-family $ 1,411 $ 1,454 $ — $ 1,176 $ 1,244 $ 15 $ 36 $ 7 $ 25 Commercial 3,267 3,267 — 3,303 3,234 41 92 32 74 Land 53 103 — 55 58 — — — — Consumer loans: Home equity and second mortgage 586 586 — 584 588 — — — — Other 10 10 — 11 5 — — — — Commercial business loans 184 184 — 164 175 — — — — Subtotal 5,511 5,604 — 5,293 5,304 56 128 39 99 With an allowance recorded: Mortgage loans: One- to four-family — — — 243 121 — — — — Land 132 132 25 134 137 — — — — Consumer loans: Other — — — — 9 — — — — Commercial business loans 248 248 38 324 400 — — — — Subtotal 380 380 63 701 667 — — — — Total: Mortgage loans: One- to four-family 1,411 1,454 — 1,419 1,365 15 36 7 25 Commercial 3,267 3,267 — 3,303 3,234 41 92 32 74 Land 185 235 25 189 195 — — — — Consumer loans: Home equity and second mortgage 586 586 — 584 588 — — — — Other 10 10 — 11 14 — — — — Commercial business loans 432 432 38 488 575 — — — — Total $ 5,891 $ 5,984 $ 63 $ 5,994 $ 5,971 $ 56 $ 128 $ 39 $ 99 ______________________________________________ (1) For the three months ended June 30, 2020. (2) For the nine months ended June 30, 2020. 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 $ 1,192 $ 1,236 $ — $ 1,110 $ 71 $ 62 Commercial 3,190 3,190 — 2,920 227 192 Land 63 126 — 100 3 3 Consumer loans: Home equity and second mortgage 603 603 — 459 — — Commercial business loans 189 291 — 142 30 30 Subtotal 5,237 5,446 — 4,731 331 287 With an allowance recorded: Mortgage loans: Land 141 141 27 246 — — Consumer loans: Other 23 23 17 10 — — Commercial business loans 536 536 128 350 30 30 Subtotal 700 700 172 606 30 30 Total Mortgage loans: One- to four-family 1,192 1,236 — 1,110 71 62 Commercial 3,190 3,190 — 2,920 227 192 Land 204 267 27 346 3 3 Consumer loans: Home equity and second mortgage 603 603 — 459 — — Other 23 23 17 10 — — Commercial business loans 725 827 128 492 60 60 Total $ 5,937 $ 6,146 $ 172 $ 5,337 $ 361 $ 317 _____________________________________________ (1) For the year ended September 30, 2019.
Schedule Of COVID Loan Modifications	The following table sets forth information with respect to total COVID-19 loan modifications as of June 30, 2020 (dollars in thousands): COVID-19 Loan Modifications Mortgage loans Count Balance Percent One- to four-family 15 $ 6,760 5.0 % Multi-family 3 2,900 2.1 Commercial 114 105,680 77.8 Construction 2 2,924 2.2 Land 7 2,996 2.2 Total mortgage loans 141 121,260 89.3 Consumer loans Home equity and second mortgage 6 307 0.2 Other 4 75 0.1 Total consumer loans 10 382 0.3 Commercial loans 58 14,191 10.4 Total COVID-19 Modifications 209 $ 135,833 100.0 %
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 June 30, 2020 and September 30, 2019 (dollars in thousands): June 30, 2020 Accruing Non- Total Mortgage loans: One- to four-family $ 484 $ — $ 484 Commercial 2,392 — 2,392 Land — 132 132 Consumer loans: Home equity and second mortgage — 75 75 Total $ 2,876 $ 207 $ 3,083 September 30, 2019 Accruing Non- Total Mortgage loans: One- to four-family $ 493 $ 141 $ 634 Commercial 2,410 — 2,410 Consumer loans: Home equity and second mortgage — 82 82 Commercial business loans — 143 143 Total $ 2,903 $ 366 $ 3,269 There was one new TDR during the year ended September 30, 2019. The following table sets forth information with respect to the Company's TDRs, by portfolio segment, during the year ended September 30, 2019 (dollars in thousands): 2019 Number of Pre-Modification Post- Modification End of Home equity and second mortgage loan (1) 1 $ 85 $ 85 $ 82 Total 1 $ 85 $ 85 $ 82 (1) Modification was a result of a reduction in interest rate and monthly payment.

Leases (Tables)

Leases (Tables)	9 Months Ended
	Jun. 30, 2020
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 and nine months ended June 30, 2020 (dollars in thousands): Three Months Ended June 30, 2020 Nine Months Ended June 30, 2020 Lease cost: Operating lease cost $ 118 $ 284 Short-term lease cost — — Total lease cost $ 118 284 The following table provides supplemental information to operating leases at or for the three and nine months ended June 30, 2020 (dollars in thousands): At or For the Three Months Ended June 30, 2020 At or For the Nine Months Ended June 30, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 80 $ 239 Weighted average remaining lease term-operating leases 9.5 years 9.5 years Weighted average discount rate-operating leases 2.22 % 2.22 %
Lessee, Operating Lease, Liability, Maturity	Maturities of operating lease liabilities at June 30, 2020 for future fiscal years are as follows (dollars in thousands): Remainder of 2020 $ 80 2021 327 2022 342 2023 310 2024 313 Thereafter 1,639 Total lease payments 3,011 Less imputed interest 316 Total $ 2,695

Net Income Per Common Share (Ta

Net Income Per Common Share (Tables)	9 Months Ended
	Jun. 30, 2020
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 and nine months ended June 30, 2020 and 2019 is as follows (dollars in thousands, except per share amounts): Three Months Ended June 30, Nine Months Ended June 30, 2020 2019 2020 2019 Numerator – net income $ 6,211 $ 5,956 $ 17,912 $ 17,685 Denominator – weighted average common shares outstanding 8,309,947 8,338,637 8,331,908 8,313,913 Basic net income per common share $ 0.75 $ 0.71 $ 2.15 $ 2.13 Diluted net income per common share computation Numerator – net income $ 6,211 $ 5,956 $ 17,912 $ 17,685 Denominator – weighted average common shares outstanding 8,309,947 8,338,637 8,331,908 8,313,913 Effect of dilutive stock options (1) 69,036 143,723 105,122 154,299 Weighted average common shares outstanding - assuming dilution 8,378,983 8,482,360 8,437,030 8,468,212 Diluted net income per common share $ 0.74 $ 0.70 $ 2.12 $ 2.09 ____________________________________________ (1) For the three and nine months ended June 30, 2020, average options to purchase 135,212 and 126,052 shares of common stock were outstanding but not included in the computation of diluted net income per share because their effect would have been anti-dilutive. For the three and nine months ended June 30, 2019, average options to purchase 102,050 and 102,353 shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per share because their effect would have been anti-dilutive.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The changes in accumulated other comprehensive loss ("AOCI") by component during the three and nine months ended June 30, 2020 and 2019 are as follows (dollars in thousands): Three Months Ended June 30, 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 $ (151) $ (28) $ (179) Other comprehensive (loss) income 154 1 155 Balance of AOCI at the end of period $ 3 $ (27) $ (24) Nine Months Ended June 30, 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 $ 90 $ (40) $ 50 Other comprehensive (loss) income (87) 13 (74) Balance of AOCI at the end of period $ 3 $ (27) $ (24) Three Months Ended June 30, 2019 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 $ 3 $ (48) $ (45) Other comprehensive (loss) income 9 3 12 Balance of AOCI at the end of period $ 12 $ (45) $ (33) Nine Months Ended June 30, 2019 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 $ (58) $ (71) $ (129) Other comprehensive (loss) income 7 26 33 Adoption of ASU 2016-01 63 $ — 63 Balance of AOCI at the end of period $ 12 $ (45) $ (33) __________________________ (1) All amounts are net of income taxes.

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	9 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	Stock option activity for the nine months ended June 30, 2020 and 2019 is summarized as follows: Nine Months Ended June 30, 2020 Nine Months Ended June 30, 2019 Number of Shares Weighted Number of Shares Weighted Options outstanding, beginning of period 378,304 $ 18.15 380,820 $ 16.03 Exercised (37,975) 10.31 (37,756) 9.00 Granted 1,000 26.50 — — Forfeited (9,050) 25.10 (3,900) 18.63 Options outstanding, end of period 332,279 $ 18.88 339,164 $ 16.79
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The weighted average assumptions for options granted during the nine months ended June 30, 2020 were as follows: Expected volatility 29 % Expected life (in years) 5 Expected dividend yield 3.36 % Risk free interest rate 1.61 % Grant date fair value per share $ 4.98
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	Additional information regarding options outstanding at June 30, 2020 is as follows: Options Outstanding Options Exercisable Range of Number Weighted Weighted Number Weighted Weighted $ 4.01 - 4.55 1,000 $ 4.01 1.4 1,000 $ 4.01 1.4 5.86 - 6.00 19,100 5.97 2.3 19,100 5.97 2.3 9.00 37,425 9.00 3.3 37,425 9.00 3.3 10.26 - 10.71 89,464 10.59 4.8 80,414 10.58 4.8 15.67 42,800 15.67 6.3 23,000 15.67 6.3 26.50 - 27.14 46,640 27.13 9.3 — N/A N/A 29.69 53,000 29.69 7.3 21,200 29.69 7.3 31.80 42,850 31.80 8.3 8,570 31.80 8.3 332,279 $ 18.88 6.1 190,709 $ 13.46 4.8

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Jun. 30, 2020
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 June 30, 2020 and September 30, 2019 were as follows (dollars in thousands): June 30, 2020 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 41,914 $ — $ 41,914 Investments in equity securities Mutual funds 977 — — 977 Total $ 977 $ 41,914 $ — $ 42,891 September 30, 2019 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 22,532 $ — $ 22,532 Investments in equity securities Mutual funds 958 — — 958 Total $ 958 $ 22,532 $ — $ 23,490
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 June 30, 2020 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 107 Consumer loans: Commercial business loans — — 210 Total impaired loans — — 317 OREO and other repossessed assets — — 1,466 Total $ — $ — $ 1,783 The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at September 30, 2019 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Land $ — $ — $ 114 Consumer loans: Other — — 6 Commercial business loans — — 408 Total impaired loans — — 528 Investment securities – held to maturity: MBS - private label residential — 2 — OREO and other repossessed assets — — 1,683 Total $ — $ 2 $ 2,211
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 June 30, 2020 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 317 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 1,466 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, 2019 (dollars in thousands): Estimated Valuation Unobservable Input(s) Range Impaired loans $ 528 Market approach Appraised value less estimated selling costs NA OREO and other repossessed assets $ 1,683 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 June 30, 2020 and September 30, 2019 (dollars in thousands): June 30, 2020 Fair Value Measurements Using: Recorded Estimated Fair Value Financial assets Cash and cash equivalents $ 271,644 $ 271,644 $ 271,644 $ — $ — CDs held for investment 72,014 72,014 72,014 — — Investment securities 72,574 74,520 — 74,520 — Investments in equity securities 977 977 977 — — FHLB stock 1,922 1,922 1,922 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 9,837 10,246 10,246 — — Loans receivable, net 1,012,759 1,034,204 — — 1,034,204 Accrued interest receivable 4,614 4,614 4,614 — — Financial liabilities Certificates of deposit 163,926 166,585 — — 166,585 FHLB borrowings 10,000 10,125 — — 10,125 Accrued interest payable 313 313 313 — — September 30, 2019 Fair Value Measurements Using: Recorded Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 143,015 $ 143,015 $ 143,015 $ — $ — CDs held for investment 78,346 78,346 78,346 — — Investment securities 53,634 55,112 3,949 51,163 — Investments in equity securities 958 958 958 — — FHLB stock 1,437 1,437 1,437 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 6,071 6,260 6,260 — — Loans receivable, net 886,662 892,495 — — 892,495 Accrued interest receivable 3,598 3,598 3,598 — — Financial liabilities Certificates of deposit 165,655 166,852 — — 166,852 Accrued interest payable 333 333 333 — —

Summary Of Significant Accoun_3

Summary Of Significant Accounting Policies (Details)	9 Months Ended
	Jun. 30, 2020segment
Accounting Policies [Abstract]
Number of operating segments	1

Business Combinations - Narrati

Business Combinations - Narrative (Details) - South Sound Merger - USD ($) $ / shares in Units, $ in Thousands	Oct. 01, 2018	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Business combination, number of shares transferred (shares)	904,826
Issued, value assigned	$ 28,270
Business combination, share price (dollars per share)	$ 31.24
Cash paid	$ 6,900
Total acquisition consideration	35,170
Goodwill acquired	$ 9,480
Acquisition related costs		$ 69	$ 447
Timberland Bank
Business Acquisition [Line Items]
Shares issued (in dollars per share)	$ 0.746
South Sound Bank
Business Acquisition [Line Items]
Shares issued (in dollars per share)	$ 5.68825
Data Processing, Hosting, and Related Services
Business Acquisition [Line Items]
Acquisition related costs		67
Professional Fees
Business Acquisition [Line Items]
Acquisition related costs		$ 2

Business Combinations - Assets

Business Combinations - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Oct. 01, 2018	Jun. 30, 2020	Mar. 31, 2019
Business Acquisition [Line Items]
Total assets		$ 0	$ 180,518
Total liabilities assumed		$ 0	$ 154,829
South Sound Merger
Business Acquisition [Line Items]
Total acquisition consideration	$ 35,170
Goodwill recognized	9,480
Book Value | South Sound Merger
Business Acquisition [Line Items]
Cash and cash equivalents	21,187
CDs held for investment	2,973
FHLB stock	205
Investment securities held to maturity	19,891
Investment securities available for sale	5,022
Loans receivable	123,627
Premises and equipment	3,225
OREO	25
Accrued interest receivable	554
BOLI	2,629
CDI	0
Servicing rights	285
Other assets	1,087
Total assets	180,710
Deposits	151,378
Other liabilities and accrued expenses	3,291
Total liabilities assumed	154,669
Total identifiable net assets acquired	26,041
Fair Value Adjustment | South Sound Merger
Business Acquisition [Line Items]
Cash and cash equivalents	0
CDs held for investment	0
FHLB stock	0
Investment securities held to maturity	(189)
Investment securities available for sale	0
Loans receivable	(2,083)
Premises and equipment	112
OREO	0
Accrued interest receivable	0
BOLI	0
CDI	2,483
Servicing rights	(4)
Other assets	(511)
Total assets	(192)
Deposits	160
Other liabilities and accrued expenses	0
Total liabilities assumed	160
Total identifiable net assets acquired	(352)
Estimated Fair Value | South Sound Merger
Business Acquisition [Line Items]
Total acquisition consideration	35,170
Cash and cash equivalents	21,187
CDs held for investment	2,973
FHLB stock	205
Investment securities held to maturity	19,702
Investment securities available for sale	5,022
Loans receivable	121,544
Premises and equipment	3,337
OREO	25
Accrued interest receivable	554
BOLI	2,629
CDI	2,483
Servicing rights	281
Other assets	576
Total assets	180,518
Deposits	151,538
Other liabilities and accrued expenses	3,291
Total liabilities assumed	154,829
Total identifiable net assets acquired	25,689
Goodwill recognized	$ 9,481

Investment Securities_ Marketab

Investment Securities: Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Held to maturity
Amortized Cost	$ 30,660	$ 31,102
Gross Unrealized Gains	1,959	1,489
Gross Unrealized Losses	(13)	(11)
Estimated Fair Value	32,606	32,580
Available for sale
Estimated Fair Value	42,891	23,490
Mortgage-backed Securities, U.S. government agencies
Held to maturity
Amortized Cost	30,413	27,786
Gross Unrealized Gains	1,657	999
Gross Unrealized Losses	(12)	(2)
Estimated Fair Value	32,058	28,783
Available for sale
Amortized Cost	41,910	22,418
Gross Unrealized Gains	33	114
Gross Unrealized Losses	(29)	0
Estimated Fair Value	41,914	22,532
Mortgage-backed Securities, Private label residential
Held to maturity
Amortized Cost	247	317
Gross Unrealized Gains	302	490
Gross Unrealized Losses	(1)	(1)
Estimated Fair Value	$ 548	806
U.S. Treasury and U.S government agency securities
Held to maturity
Amortized Cost		2,999
Gross Unrealized Gains		0
Gross Unrealized Losses		(8)
Estimated Fair Value		$ 2,991

Investment Securities_ Unrealiz

Investment Securities: Unrealized Gain (Loss) on Investments (Details) $ in Thousands	Jun. 30, 2020USD ($)security	Sep. 30, 2019USD ($)security
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 7,021	$ 291
Held to maturity, 12 Months or Longer, Estimated Fair Value	52	3,090
Held to maturity, Total, Estimated Fair Value	7,073	3,381
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(11)	(1)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	(2)	(10)
Held to maturity, Total, Gross Unrealized Losses	$ (13)	$ (11)
Held to maturity, Less Than 12 Months, Quantity | security	6	2
Held to maturity, 12 Months or Longer, Quantity | security	6	12
Available-for-sale Securities, Fair Value:
Available for sale, Less Than 12 Months, Estimated Fair Value	$ 35,709
Available for sale, 12 Months or Longer, Estimated Fair Value	0
Available for sale, Total, Estimated Fair Value	35,709
Available-for-sale Securities, Gross Unrealized Losses:
Available for sale, Less Than 12 Months, Gross Unrealized Losses	(29)
Available for sale, 12 Months or Longer, Gross Unrealized Losses	0
Available for sale, Total, Gross Unrealized Losses	$ (29)
Available-for-sale, Less than 12 Months, Quantity | security	9
Available-for-sale, 12 Months or Longer, Quantity | security	0
Mortgage-backed Securities, U.S. government agencies
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 7,014	$ 291
Held to maturity, 12 Months or Longer, Estimated Fair Value	41	76
Held to maturity, Total, Estimated Fair Value	7,055	367
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(11)	(1)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	(1)	(1)
Held to maturity, Total, Gross Unrealized Losses	$ (12)	$ (2)
Held to maturity, Less Than 12 Months, Quantity | security	5	2
Held to maturity, 12 Months or Longer, Quantity | security	4	6
Available-for-sale Securities, Fair Value:
Available for sale, Less Than 12 Months, Estimated Fair Value	$ 35,709
Available for sale, 12 Months or Longer, Estimated Fair Value	0
Available for sale, Total, Estimated Fair Value	35,709
Available-for-sale Securities, Gross Unrealized Losses:
Available for sale, Less Than 12 Months, Gross Unrealized Losses	(29)
Available for sale, 12 Months or Longer, Gross Unrealized Losses	0
Available for sale, Total, Gross Unrealized Losses	$ (29)
Available-for-sale, Less than 12 Months, Quantity | security	9
Available-for-sale, 12 Months or Longer, Quantity | security	0
Mortgage-backed Securities, Private label residential
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 7	$ 0
Held to maturity, 12 Months or Longer, Estimated Fair Value	11	23
Held to maturity, Total, Estimated Fair Value	18	23
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	0	0
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	(1)	(1)
Held to maturity, Total, Gross Unrealized Losses	$ (1)	$ (1)
Held to maturity, Less Than 12 Months, Quantity | security	1	0
Held to maturity, 12 Months or Longer, Quantity | security	2	5
U.S. Treasury and U.S. government agency securities
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value		$ 0
Held to maturity, 12 Months or Longer, Estimated Fair Value		2,991
Held to maturity, Total, Estimated Fair Value		2,991
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses		0
Held to maturity, 12 Months or Longer, Gross Unrealized Losses		(8)
Held to maturity, Total, Gross Unrealized Losses		$ (8)
Held to maturity, Less Than 12 Months, Quantity | security		0
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		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Recoveries (other than temporary impairment OTTI) on investment securities	$ (6)	$ (14)	$ (113)	$ (46)
Net recoveries on investment securities	(6)	(14)	(113)	(34)
Held-to-maturity Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Recoveries (other than temporary impairment OTTI) on investment securities	6	14	113	46
Held to Maturity - adjustment for portion of OTTI recorded as OCI before income taxes	0	0	0	(12)
Net recoveries on investment securities	6	14	113	34
Available-for-sale Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
AFS - OTTI	0	0	0	0
AFS - - adjustment for portion of OTTI recorded as OCI before income taxes	0	0	0	0
AFS - Net OTTI recognized in earnings	$ 0	$ 0	$ 0	$ 0
Minimum
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	6.00%	6.00%	6.00%	6.00%
OTTI significant inputs - Collateral default rate	2.00%	0.00%	2.00%	0.00%
OTTI significant inputs - Loss severity rate	0.00%	0.00%	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%	15.00%	15.00%
OTTI significant inputs - Collateral default rate	19.96%	11.28%	19.96%	11.28%
OTTI significant inputs - Loss severity rate	12.41%	78.00%	12.41%	78.00%
Weighted Average
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	9.21%	11.52%	9.21%	11.52%
OTTI significant inputs - Collateral default rate	10.21%	5.28%	10.21%	5.28%
OTTI significant inputs - Loss severity rate	2.48%	37.73%	2.48%	37.73%

Investment Securities_ Other th

Investment Securities: Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance of credit loss	$ 1,071	$ 1,153
Additional increases to the amount related to credit loss for which OTTI was previously recognized	2	13
Realized losses previously recorded as credit losses	(65)	(16)
Recovery of prior credit loss	(112)	(47)
Ending balance of credit loss	$ 896	$ 1,103

Investment Securities_ Narrativ

Investment Securities: Narrative-Realized Gains (Losses) (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2020USD ($)security	Jun. 30, 2019USD ($)security	Sep. 30, 2019USD ($)
Investments [Abstract]
Loss on sale of securities	$ 65	$ 16
Held-to-maturity securities, realized loss, number of securities | security	9	17
Security owned and pledged as collateral	$ 67,350		$ 18,590

Investment Securities_ Schedu_2

Investment Securities: Schedule of Contractual maturities of debt securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Held-to-maturity Securities, Amortized Cost:
Due within one year	$ 0
Due after one year to five years	144
Due after five years to ten years	6,708
Due after ten years	23,808
Total	30,660	$ 31,102	[1]
Held-to-maturity Securities, Estimated Fair Value:
Due within one year	0
Due after one year to five years	151
Due after five years to ten years	7,444
Due after ten years	25,011
Total	32,606	$ 32,580
Available-for-sale Securities, Amortized Cost:
Due within one year	836
Due after one year to five years	1,118
Due after five years to ten years	6,150
Due after ten years	33,806
Total	41,910
Available-for-sale Securities, Estimated Fair Value:
Due within one year	834
Due after one year to five years	1,108
Due after five years to ten years	6,160
Due after ten years	33,812
Total	$ 41,914
[1]	Derived from audited consolidated financial statements.

Goodwill and CDI - Goodwill (De

Goodwill and CDI - Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
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 - Narrative (Details) - USD ($)	Jun. 30, 2020	Sep. 30, 2019
Subsequent Event [Line Items]
Unamortized loan commitment and origination fees and unamortized discounts or premiums	$ 963,000
Troubled debt restructured loan	3,083,000	$ 3,269,000
Loans and leases receivable, impaired, commitment to lend	0	0
Allowance for loan losses allocated to TDR loans	$ 25,000	$ 56,000

Loans Receivable And Allowanc_4

Loans Receivable And Allowance For Loan Losses: Schedule of Loans receivable and Loans held for sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable		$ 1,128,161	$ 991,376
Undisbursed portion of construction loans in process		95,785	92,226
Deferred loan origination fees, net		6,723	2,798
Allowance for loan losses		12,894	9,690
Less: Loans in process, Deferred fees and Allowance for loan losses		115,402	104,714
Loans receivable, net		$ 1,012,759	$ 886,662	[1]
Ratio of loan category to total loans receivable (percent)		100.00%	100.00%
Total mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 896,037	$ 882,110
Ratio of loan category to total loans receivable (percent)		79.50%	89.00%
Mortgage loans, one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 120,514	$ 132,661
Ratio of loan category to total loans receivable (percent)		10.70%	13.40%
Mortgage loans excluded		$ 9,837	$ 6,071
Mortgage loans, multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 79,468	$ 76,036
Ratio of loan category to total loans receivable (percent)		7.00%	7.70%
Mortgage loans, commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 455,454	$ 419,117
Ratio of loan category to total loans receivable (percent)		40.50%	42.30%
Mortgage loans, construction - custom and owner/builder
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 134,709	$ 128,848
Ratio of loan category to total loans receivable (percent)		11.90%	13.00%
Mortgage loans, construction - speculative one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 12,136	$ 16,445
Ratio of loan category to total loans receivable (percent)		1.20%	1.70%
Mortgage loans, construction – commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 33,166	$ 39,566
Ratio of loan category to total loans receivable (percent)		2.90%	4.00%
Mortgage loans, construction - Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 27,449	$ 36,263
Ratio of loan category to total loans receivable (percent)		2.40%	3.60%
Mortgage loans, construction - Land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 6,132	$ 2,404
Ratio of loan category to total loans receivable (percent)		0.50%	0.20%
Mortgage loans, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans		$ 27,009	$ 30,770
Ratio of loan category to total loans receivable (percent)		2.40%	3.10%
Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans		$ 37,957	$ 44,502
Ratio of loan category to total loans receivable (percent)		3.30%	4.50%
Consumer loans, home equity and second mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans		$ 34,405	$ 40,190
Ratio of loan category to total loans receivable (percent)		3.00%	4.10%
Consumer loans, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans		$ 3,552	$ 4,312
Ratio of loan category to total loans receivable (percent)		0.30%	0.40%
Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans	$ 64,764	$ 71,586
Ratio of loan category to total loans receivable (percent)		6.30%	6.50%
Consumer loans excluded		$ 0	$ 0
SBA PPP Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans		$ 122,581	$ 0
Ratio of loan category to total loans receivable (percent)		10.90%	0.00%
Commercial And PPP Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans		$ 194,167	$ 64,764
Ratio of loan category to total loans receivable (percent)		17.20%	6.50%
[1]	Derived from audited consolidated financial statements.

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		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	$ 11,890	$ 9,741	$ 9,690	$ 9,530
Provision for (Recapture of) Loan Losses	1,000	0	3,200	0
Charge- offs	(1)	(141)	(27)	(157)
Recoveries	5	31	31	258
Allowance for loan losses, Ending Allowance	12,894	9,631	12,894	9,631
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,149	1,154	1,167	1,086
Provision for (Recapture of) Loan Losses	14	(36)	(7)	(35)
Charge- offs	0	0	0	0
Recoveries	0	0	3	67
Allowance for loan losses, Ending Allowance	1,163	1,118	1,163	1,118
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	595	470	481	433
Provision for (Recapture of) Loan Losses	70	(32)	184	5
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	665	438	665	438
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	5,762	4,122	4,154	4,248
Provision for (Recapture of) Loan Losses	957	(70)	2,560	(346)
Charge- offs	0	0	0	0
Recoveries	0	0	5	150
Allowance for loan losses, Ending Allowance	6,719	4,052	6,719	4,052
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	697	666	755	671
Provision for (Recapture of) Loan Losses	110	36	47	31
Charge- offs	0	0	0	0
Recoveries	0	0	5	0
Allowance for loan losses, Ending Allowance	807	702	807	702
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	204	249	212	178
Provision for (Recapture of) Loan Losses	(40)	(28)	(48)	43
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	164	221	164	221
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	423	384	338	563
Provision for (Recapture of) Loan Losses	(119)	0	(34)	(179)
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	304	384	304	384
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	394	272	375	135
Provision for (Recapture of) Loan Losses	(76)	95	(57)	232
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	318	367	318	367
Mortgage loans, construction - Land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	80	244	67	49
Provision for (Recapture of) Loan Losses	27	(118)	40	77
Charge- offs	0		0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	107	126	107	126
Mortgage loans, land
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	678	649	697	844
Provision for (Recapture of) Loan Losses	(41)	48	(70)	(155)
Charge- offs	0	(46)	0	(46)
Recoveries	5	5	15	13
Allowance for loan losses, Ending Allowance	642	656	642	656
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	656	667	623	649
Provision for (Recapture of) Loan Losses	(24)	(21)	9	1
Charge- offs	0	(1)	0	(5)
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	632	645	632	645
Consumer loans, other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	78	112	99	117
Provision for (Recapture of) Loan Losses	(4)	(25)	(17)	(29)
Charge- offs	(1)	(1)	(12)	(4)
Recoveries	0	1	3	3
Allowance for loan losses, Ending Allowance	73	87	73	87
Commercial business loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,174	752	722	557
Provision for (Recapture of) Loan Losses	126	151	593	355
Charge- offs	0	(93)	(15)	(102)
Recoveries	0	25	0	25
Allowance for loan losses, Ending Allowance	$ 1,300	$ 835	$ 1,300	$ 835

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	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 63		$ 172
Allowance for Loan Losses, Collectively Evaluated for Impairment	12,831		9,518
Allowance for Loan Losses, Total	12,894	$ 11,890	9,690	$ 9,631	$ 9,741	$ 9,530
Recorded Investment in Loans, Individually Evaluated for Impairment	5,891		5,937
Recorded Investment in Loans, Collectively Evaluated for Impairment	1,026,485		893,213
Loans receivable	1,032,376		899,150
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	1,163		1,167
Allowance for Loan Losses, Total	1,163	1,149	1,167	1,118	1,154	1,086
Recorded Investment in Loans, Individually Evaluated for Impairment	1,410		1,192
Recorded Investment in Loans, Collectively Evaluated for Impairment	119,104		131,469
Loans receivable	120,514		132,661
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	665		481
Allowance for Loan Losses, Total	665	595	481	438	470	433
Recorded Investment in Loans, Individually Evaluated for Impairment	0		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	79,468		76,036
Loans receivable	79,468		76,036
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	6,719		4,154
Allowance for Loan Losses, Total	6,719	5,762	4,154	4,052	4,122	4,248
Recorded Investment in Loans, Individually Evaluated for Impairment	3,267		3,190
Recorded Investment in Loans, Collectively Evaluated for Impairment	452,187		415,927
Loans receivable	455,454		419,117
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	807		755
Allowance for Loan Losses, Total	807	697	755	702	666	671
Recorded Investment in Loans, Individually Evaluated for Impairment	0		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	73,011		75,411
Loans receivable	73,011		75,411
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	164		212
Allowance for Loan Losses, Total	164	204	212	221	249	178
Recorded Investment in Loans, Individually Evaluated for Impairment	0		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	7,412		10,779
Loans receivable	7,412		10,779
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	304		338
Allowance for Loan Losses, Total	304	423	338	384	384	563
Recorded Investment in Loans, Individually Evaluated for Impairment	0		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	19,793		24,051
Loans receivable	19,793		24,051
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	318		375
Allowance for Loan Losses, Total	318	394	375	367	272	135
Recorded Investment in Loans, Individually Evaluated for Impairment	0		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	14,430		19,256
Loans receivable	14,430		19,256
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	107		67
Allowance for Loan Losses, Total	107	80	67	126	244	49
Recorded Investment in Loans, Individually Evaluated for Impairment	0		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	3,161		1,803
Loans receivable	3,161		1,803
Mortgage loans, land
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	25		27
Allowance for Loan Losses, Collectively Evaluated for Impairment	617		670
Allowance for Loan Losses, Total	642	678	697	656	649	844
Recorded Investment in Loans, Individually Evaluated for Impairment	186		204
Recorded Investment in Loans, Collectively Evaluated for Impairment	26,823		30,566
Loans receivable	27,009		30,770
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	632		623
Allowance for Loan Losses, Total	632	656	623	645	667	649
Recorded Investment in Loans, Individually Evaluated for Impairment	586		603
Recorded Investment in Loans, Collectively Evaluated for Impairment	33,819		39,587
Loans receivable	34,405		40,190
Consumer loans, other
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0		17
Allowance for Loan Losses, Collectively Evaluated for Impairment	73		82
Allowance for Loan Losses, Total	73	78	99	87	112	117
Recorded Investment in Loans, Individually Evaluated for Impairment	10		23
Recorded Investment in Loans, Collectively Evaluated for Impairment	3,542		4,289
Loans receivable	3,552		4,312
Commercial business loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	38		128
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,262		594
Allowance for Loan Losses, Total	1,300	$ 1,174	722	$ 835	$ 752	$ 557
Recorded Investment in Loans, Individually Evaluated for Impairment	432		725
Recorded Investment in Loans, Collectively Evaluated for Impairment	71,154		64,039
Loans receivable	71,586		$ 64,764
SBA PPP Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	0
Allowance for Loan Losses, Total	0
Recorded Investment in Loans, Individually Evaluated for Impairment	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	122,581
Loans receivable	$ 122,581

Loans Receivable And Allowanc_7

Loans Receivable And Allowance For Loan Losses: Past Due Status of Loans (Details) - USD ($) $ in Thousands		Jun. 30, 2020	Sep. 30, 2019
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		$ 3,552	$ 3,925
Loans receivable, Non-Accrual	[1]	3,015	3,033
Loans receivable, Current		1,028,824	895,225
Loans receivable		1,032,376	899,150
Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		927	985
Loans receivable, Non-Accrual	[1]	927	699
Loans receivable, Current		119,587	131,676
Loans receivable		120,514	132,661
Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		79,468	76,036
Loans receivable		79,468	76,036
Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		1,412	1,091
Loans receivable, Non-Accrual	[1]	875	779
Loans receivable, Current		454,042	418,026
Loans receivable		455,454	419,117
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		73,011	75,411
Loans receivable		73,011	75,411
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		7,412	10,779
Loans receivable		7,412	10,779
Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		19,793	24,051
Loans receivable		19,793	24,051
Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		14,430	19,256
Loans receivable		14,430	19,256
Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		3,161	1,803
Loans receivable		3,161	1,803
Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		185	402
Loans receivable, Non-Accrual	[1]	185	204
Loans receivable, Current		26,824	30,368
Loans receivable		27,009	30,770
Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		586	697
Loans receivable, Non-Accrual	[1]	586	603
Loans receivable, Current		33,819	39,493
Loans receivable		34,405	40,190
Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		10	23
Loans receivable, Non-Accrual	[1]	10	23
Loans receivable, Current		3,542	4,289
Loans receivable		3,552	4,312
Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		432	727
Loans receivable, Non-Accrual	[1]	432	725
Loans receivable, Current		71,154	64,037
Loans receivable		71,586	64,764
SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0
Loans receivable, Non-Accrual		0
Loans receivable, Current		122,581
Loans receivable		122,581
30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	193
30 to 59 Days Past Due | Mortgage loans, 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, 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		0	94
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	5
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	94
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	0
30 to 59 Days Past Due | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0
60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		537	699
60 to 89 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	286
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		537	218
60 to 89 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	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	193
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	2
60 to 89 Days Past Due | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0
Past Due 90 Days or More and Still Accruing
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, one-to-four family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		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]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction – commercial
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - Multi-family
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - Land development
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, land
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Consumer loans, home equity and second mortgage
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Consumer loans, other
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Commercial business loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		0	$ 0
Past Due 90 Days or More and Still Accruing | SBA PPP Loans
Financing Receivable, Past Due [Line Items]
Loans receivable, Total Past Due		$ 0
[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	Jun. 30, 2020	Sep. 30, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 1,032,376	$ 899,150
Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	120,514	132,661
Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	79,468	76,036
Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	455,454	419,117
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	73,011	75,411
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	7,412	10,779
Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	19,793	24,051
Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	14,430	19,256
Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	3,161	1,803
Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	27,009	30,770
Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	34,405	40,190
Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	3,552	4,312
Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	71,586	64,764
SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	122,581
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	1,015,005	877,552
Pass | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	117,647	129,748
Pass | Mortgage loans, multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	79,468	76,036
Pass | Mortgage loans, commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	445,544	405,165
Pass | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	72,208	75,178
Pass | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	7,412	10,779
Pass | Mortgage loans, construction – commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	19,793	24,051
Pass | Mortgage loans, construction - Multi-family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	14,430	19,256
Pass | Mortgage loans, construction - Land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	3,035	1,659
Pass | Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	24,713	28,390
Pass | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	33,867	39,364
Pass | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	3,510	4,257
Pass | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	70,797	63,669
Pass | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	122,581
Watch
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	11,954	13,731
Watch | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	1,377	296
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	7,936	11,944
Watch | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	803	233
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	1,527	952
Watch | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	54	41
Watch | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	32	33
Watch | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	225	232
Watch | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	1,785	2,547
Special Mention | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	553	562
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	572	683
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	0	0
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	584	1,217
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	76	85
Special Mention | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	0
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	3,632	5,320
Substandard | Mortgage loans, one-to-four family
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	937	2,055
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	1,402	1,325
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	126	144
Substandard | Mortgage loans, land
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	185	211
Substandard | Consumer loans, home equity and second mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	484	785
Substandard | Consumer loans, other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	10	22
Substandard | Commercial business loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	488	$ 778
Substandard | SBA PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans receivable	$ 0

Loans Receivable And Allowanc_9

Loans Receivable And Allowance For Loan Losses: Impaired Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2020		Jun. 30, 2020	Sep. 30, 2019
Recorded Investment
With no related allowance recorded	$ 5,511		$ 5,511	$ 5,237
With an allowance recorded	380		380	700
Total:	5,891		5,891	5,937
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	5,604		5,604	5,446
With an allowance recorded	380		380	700
Total:	5,984		5,984	6,146
Related Allowance	63		63	172
Average Recorded Investment
With no related allowance recorded	5,293	[1]	5,304	4,731
With an allowance recorded	701	[1]	667	606
Total	5,994	[1]	5,971	5,337
Interest Income Recognized
With no related allowance recorded	56	[1]	128	331	[1]
With an allowance recorded	0	[1]	0	30
Total	56	[1]	128	361
Cash Basis Interest Income Recognized
With no related allowance recorded	39	[1]	99	287
With an allowance recorded	0	[1]	0	30
Total	39	[1]	99	317
Mortgage loans, one-to-four family
Recorded Investment
With no related allowance recorded	1,411		1,411	1,192
With an allowance recorded	0		0
Total:	1,411		1,411	1,192
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	1,454		1,454	1,236
With an allowance recorded	0		0
Total:	1,454		1,454	1,236
Related Allowance	0		0	0
Average Recorded Investment
With no related allowance recorded	1,176	[1]	1,244	1,110
With an allowance recorded	243	[1]	121
Total	1,419	[1]	1,365	1,110
Interest Income Recognized
With no related allowance recorded	15	[1]	36	71	[1]
With an allowance recorded	0	[1]	0
Total	15	[1]	36	71
Cash Basis Interest Income Recognized
With no related allowance recorded	7	[1]	25	62
With an allowance recorded	0	[1]	0
Total	7	[1]	25	62
Mortgage loans, commercial
Recorded Investment
With no related allowance recorded	3,267		3,267	3,190
Total:	3,267		3,267	3,190
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	3,267		3,267	3,190
Total:	3,267		3,267	3,190
Related Allowance	0		0	0
Average Recorded Investment
With no related allowance recorded	3,303	[1]	3,234	2,920
Total	3,303	[1]	3,234	2,920
Interest Income Recognized
With no related allowance recorded	41	[1]	92	227	[1]
Total	41	[1]	92	227
Cash Basis Interest Income Recognized
With no related allowance recorded	32	[1]	74	192
Total	32	[1]	74	192
Mortgage loans, land
Recorded Investment
With no related allowance recorded	53		53	63
With an allowance recorded	132		132	141
Total:	185		185	204
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	103		103	126
With an allowance recorded	132		132	141
Total:	235		235	267
Related Allowance	25		25	27
Average Recorded Investment
With no related allowance recorded	55	[1]	58	100
With an allowance recorded	134	[1]	137	246
Total	189	[1]	195	346
Interest Income Recognized
With no related allowance recorded	0	[1]	0	3	[1]
With an allowance recorded	0	[1]	0	0
Total	0	[1]	0	3
Cash Basis Interest Income Recognized
With no related allowance recorded	0	[1]	0	3
With an allowance recorded	0	[1]	0	0
Total	0	[1]	0	3
Consumer loans, home equity and second mortgage
Recorded Investment
With no related allowance recorded	586		586	603
Total:	586		586	603
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	586		586	603
Total:	586		586	603
Related Allowance	0		0	0
Average Recorded Investment
With no related allowance recorded	584	[1]	588	459
Total	584	[1]	588	459
Interest Income Recognized
With no related allowance recorded	0	[1]	0	0	[1]
Total	0	[1]	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded	0	[1]	0	0
Total	0	[1]	0	0
Consumer loans, other
Recorded Investment
With no related allowance recorded	10		10
With an allowance recorded	0		0	23
Total:	10		10	23
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	10		10
With an allowance recorded	0		0	23
Total:	10		10	23
Related Allowance	0		0	17
Average Recorded Investment
With no related allowance recorded	11	[1]	5
With an allowance recorded	0	[1]	9	10
Total	11	[1]	14	10
Interest Income Recognized
With no related allowance recorded	0	[1]	0
With an allowance recorded	0	[1]	0	0
Total	0	[1]	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded	0	[1]	0
With an allowance recorded	0	[1]	0
Total	0	[1]	0	0
Commercial business loans
Recorded Investment
With no related allowance recorded	184		184	189
With an allowance recorded	248		248	536
Total:	432		432	725
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	184		184	291
With an allowance recorded	248		248	536
Total:	432		432	827
Related Allowance	38		38	128
Average Recorded Investment
With no related allowance recorded	164	[1]	175	142
With an allowance recorded	324		400	350
Total	488	[1]	575	492
Interest Income Recognized
With no related allowance recorded	0	[1]	0	30	[1]
With an allowance recorded	0	[1]	0	30
Total	0	[1]	0	60
Cash Basis Interest Income Recognized
With no related allowance recorded	0	[1]	0	30
With an allowance recorded	0	[1]	0	30
Total	$ 0	[1]	$ 0	$ 60
[1]	For the three months ended June 30, 2020

Loans Receivable And Allowan_10

Loans Receivable And Allowance For Loan Losses: COVID Modifications (Details) $ in Thousands	Jun. 30, 2020USD ($)number_of_loans
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 | number_of_loans	209
Commercial loans modified for COVID | $	$ 135,833
Total mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Mortgage Loans Modified | number_of_loans	141
Mortgage loans modified for COVID | $	$ 121,260
Ratio of loan category to total loans, modified for COVID	89.30%
Mortgage loans, one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Mortgage Loans Modified | number_of_loans	15
Mortgage loans modified for COVID | $	$ 6,760
Ratio of loan category to total loans, modified for COVID	5.00%
Mortgage loans, multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Mortgage Loans Modified | number_of_loans	3
Mortgage loans modified for COVID | $	$ 2,900
Ratio of loan category to total loans, modified for COVID	2.10%
Mortgage loans, commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Mortgage Loans Modified | number_of_loans	114
Mortgage loans modified for COVID | $	$ 105,680
Ratio of loan category to total loans, modified for COVID	77.80%
Mortgage loans, construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Mortgage Loans Modified | number_of_loans	2
Mortgage loans modified for COVID | $	$ 2,924
Ratio of loan category to total loans, modified for COVID	2.20%
Mortgage loans, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number Of Mortgage Loans Modified | number_of_loans	7
Mortgage loans modified for COVID | $	$ 2,996
Ratio of loan category to total loans, modified for COVID	2.20%
Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ratio of loan category to total loans, modified for COVID	0.30%
Number Of Consumer Loans Modified | number_of_loans	10
Consumer loans, modified for COVID | $	$ 382
Consumer loans, home equity and second mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ratio of loan category to total loans, modified for COVID	0.20%
Number Of Consumer Loans Modified | number_of_loans	6
Consumer loans, modified for COVID | $	$ 307
Consumer loans, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ratio of loan category to total loans, modified for COVID	0.10%
Number Of Consumer Loans Modified | number_of_loans	4
Consumer loans, modified for COVID | $	$ 75
Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ratio of loan category to total loans, modified for COVID	10.40%
Number Of Commercial Loans Modified | number_of_loans	58
Commercial loans modified for COVID | $	$ 14,191

Loans Receivable And Allowan_11

Loans Receivable And Allowance For Loan Losses: Schedule 1 of Troubled debt restructured loans (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	$ 3,083	$ 3,269
Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	2,876	2,903
Non-Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	207	366
Mortgage loans, one-to-four family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	484	634
Mortgage loans, one-to-four family | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	484	493
Mortgage loans, one-to-four family | Non-Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	0	141
Mortgage loans, commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	2,392	2,410
Mortgage loans, commercial | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	2,392	2,410
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	132
Mortgage loans, land | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	0
Mortgage loans, land | Non-Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	132
Consumer loans, home equity and second mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan	75	82
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	$ 75	82
Commercial business loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan		143
Commercial business loans | Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan		0
Commercial business loans | Non-Accrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructured loan		$ 143

Loans Receivable And Allowan_12

Loans Receivable And Allowance For Loan Losses - Land and Commercial Business Loans (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2019USD ($)contract	Jun. 30, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructured loan	$ 3,269	$ 3,083
Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts | contract	1
Pre-modification TDR balance	$ 85
Post-modification TDR balance	85
Troubled debt restructured loan	$ 82
Mortgage loans, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructured loan		$ 132
Mortgage loans, land | Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts | contract	1
Pre-modification TDR balance	$ 85
Post-modification TDR balance	85
Troubled debt restructured loan	$ 82

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Oct. 01, 2019	Sep. 30, 2019	[1]
Leases [Abstract]
Operating lease right-of-use ("ROU") assets	$ 2,662	$ 2,662	$ 2,890	$ 0
Operating lease cost	118	284
Short-term lease cost	0	0
Total lease cost	118	284
Operating cash flows from operating leases	$ 80	$ 239
Weighted average remaining lease term-operating leases	9 years 6 months	9 years 6 months
Weighted average discount rate-operating leases	2.22%	2.22%
[1]	Derived from audited consolidated financial statements.

Leases - Schedule Of Lease Matu

Leases - Schedule Of Lease Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Remainder of 2020	$ 80
2021	327
2022	342
2023	310
2024	313
Thereafter	1,639
Total lease payments	3,011
Less imputed interest	316
Total	$ 2,695	$ 0

Net Income Per Common Share (De

Net Income Per Common Share (Details)	Jun. 30, 2020shares
Earnings Per Share [Abstract]
ESOP, number of suspense shares (in shares)	0

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		9 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share, Basic [Abstract]
Numerator – net income		$ 6,211	$ 5,956	$ 17,912	$ 17,685
Denominator – weighted average common shares outstanding (in shares)		8,309,947	8,338,637	8,331,908	8,313,913
Basic net income per common share (in dollars per share)		$ 0.75	$ 0.71	$ 2.15	$ 2.13
Earnings Per Share, Diluted [Abstract]
Effect of dilutive stock options (in shares)	[1]	69,036	143,723	105,122	154,299
Weighted average common shares and common stock equivalents (in shares)		8,378,983	8,482,360	8,437,030	8,468,212
Diluted net income per common share (in dollars per share)		$ 0.74	$ 0.70	$ 2.12	$ 2.09
Stock Options
Earnings Per Share, Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)		135,212	102,050	126,052	102,353
[1]

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period		$ 178,008	$ 162,338	$ 171,067	[1]	$ 124,657
Balance at end of period		182,806	166,269	182,806		166,269
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	(179)	(45)	50		(129)
Other comprehensive (loss) income	[2]	155	12	(74)		33
Balance at end of period	[2]	(24)	(33)	(24)		(33)
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]	(151)	3	90		(58)
Other comprehensive (loss) income	[2]	154	9	(87)		7
Balance at end of period	[2]	3	12	3		12
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]	(28)	(48)	(40)		(71)
Other comprehensive (loss) income	[2]	1	3	13		26
Balance at end of period	[2]	$ (27)	$ (45)	$ (27)		(45)
Accounting Standards Update 2016-01
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income						63
Accounting Standards Update 2016-01 | Accumulated Net Unrealized Investment Gain (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income						63
Accounting Standards Update 2016-01 | Accumulated Net Unrealized Investment Gain (Loss) | Held-to-maturity Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive (loss) income						$ 0
[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	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jan. 28, 2020	Mar. 31, 2019	Jan. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised during the period	$ 640	$ 751
Number of unvested stock options (shares)	141,570	155,750
Unvested stock options, aggregate grant date fair value	$ 559	$ 485
Unvested stock options, aggregate intrinsic value	$ 118
Stock options vested during period (shares)	13,100	37,300
Stock options vested during period, aggregate grant date fair value		$ 88
Stock options, outstanding, aggregate intrinsic value	$ 1,380	$ 4,530
Unrecognized compensation expense, non-vested options	$ 466
Unrecognized compensation expense, non-vested options, amortization period (in years)	2 years 1 month 24 days
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	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
Number of unvested shares	0			0
Equity Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized					352,366
Equity Incentive Plan 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	350,000		350,000
MRDP | Stock Grant Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants awarded (shares)	0	0

Stock Compensation Plans_ Discl

Stock Compensation Plans: Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details) - $ / shares	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Shares:
Options outstanding, beginning of period (shares)	378,304	380,820
Exercised (shares)	(37,975)	(37,756)
Granted (shares)	1,000	0
Forfeited (shares)	(9,050)	(3,900)
Options outstanding, end of period (shares)	332,279	339,164
Weighted Average Exercise Price (in dollars per share):
Options outstanding, beginning of period (dollars per share)	$ 18.15	$ 16.03
Exercised (dollars per share)	10.31	9
Granted (dollars per share)	26.50	0
Forfeited (dollars per share)	25.10	18.63
Options outstanding, end of period (dollars per share)	$ 18.88	$ 16.79

Stock Compensation Plans_ Stock

Stock Compensation Plans: Stock Options by Exercise Price (Details) - Stock Options shares in Thousands	9 Months Ended
	Jun. 30, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	332,279
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 18.88
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 1 month 6 days
Options Exercisable, Number (shares) | shares	190,709
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 13.46
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 18 days
$4.01 - $4.55
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	1,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 4.01
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	1 year 4 months 24 days
Options Exercisable, Number (shares) | shares	1,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 4.01
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	1 year 4 months 24 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 4.01
Weighted Average Exercise Price, maximum (dollars per share)	$ 4.55
$5.86 - $6.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	19,100
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 5.97
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 3 months 18 days
Options Exercisable, Number (shares) | shares	19,100
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 5.97
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	2 years 3 months 18 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 5.86
Weighted Average Exercise Price, maximum (dollars per share)	$ 6
$9.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	37,425
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 9
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	3 years 3 months 18 days
Options Exercisable, Number (shares) | shares	37,425
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 9
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	3 years 3 months 18 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 9
$10.26 - $10.71
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	89,464
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 10.59
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 18 days
Options Exercisable, Number (shares) | shares	80,414
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 10.58
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 18 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 10.26
Weighted Average Exercise Price, maximum (dollars per share)	$ 10.71
$15.67
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	42,800
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 15.67
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	6 years 3 months 18 days
Options Exercisable, Number (shares) | shares	23,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 15.67
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	6 years 3 months 18 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 15.67
$26.50 - $27.14
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	46,640
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 27.13
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	9 years 3 months 18 days
Options Exercisable, Number (shares) | shares	0
Weighted Average Exercise Price, minimum (dollars per share)	$ 26.50
Weighted Average Exercise Price, maximum (dollars per share)	$ 27.14
$29.69
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	53,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 29.69
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years 3 months 18 days
Options Exercisable, Number (shares) | shares	21,200
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 29.69
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	7 years 3 months 18 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 29.69
$31.80
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	42,850
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 31.80
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	8 years 3 months 18 days
Options Exercisable, Number (shares) | shares	8,570
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 31.80
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	8 years 3 months 18 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 31.80

Stock Compensation Plans And St

Stock Compensation Plans And Stock Based Compensation: Schedule of Fair Value Assumptions (Details)	9 Months Ended
	Jun. 30, 2020$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (percent)	29.00%
Expected term (in years)	5 years
Expected dividend yield (percent)	3.36%
Risk free interest rate (percent)	1.61%
Grant date fair value per share (dollars per share)	$ 4.98

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	Jun. 30, 2020	Sep. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	$ 42,891	$ 23,490
MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	41,914	22,532
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	977	958
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	41,914	22,532
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	0	0
Recurring | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	41,914	22,532
Recurring | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	977	958
Recurring | Fair Value, Inputs, Level 1 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, 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]
Available-for-sale investment securities, estimated fair value	977	958
Recurring | Fair Value, Inputs, Level 2 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	41,914	22,532
Recurring | Fair Value, Inputs, Level 2 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, 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]
Available-for-sale investment securities, 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]
Available-for-sale investment securities, 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	Jun. 30, 2020	Sep. 30, 2019
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 | Other consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring		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
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	0	2
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 | Other consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring		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		2
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	1,783	2,211
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	107	114
Fair Value, Inputs, Level 3 | Other consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring		6
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	210	408
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	317	528
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
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	$ 1,466	$ 1,683

Fair Value Measurements_ Fair V

Fair Value Measurements: Fair Value Measurements, Nonrecurring, Valuation Techniques (Details) - Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Fair Value, Inputs, Level 1
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	$ 0	$ 0
Fair Value, Inputs, Level 1 | Other consumer loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring		0
Fair Value, Inputs, Level 1 | Commercial business loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Mortgage loans, land
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Private label residential
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring		0
Fair Value, Inputs, Level 1 | OREO and other repossessed assets
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	2
Fair Value, Inputs, Level 2 | Other consumer loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring		0
Fair Value, Inputs, Level 2 | Commercial business loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Mortgage loans, land
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Private label residential
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring		2
Fair Value, Inputs, Level 2 | OREO and other repossessed assets
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	1,783	2,211
Fair Value, Inputs, Level 3 | Other consumer loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring		6
Fair Value, Inputs, Level 3 | Commercial business loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	210	408
Fair Value, Inputs, Level 3 | Mortgage loans, land
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	107	114
Fair Value, Inputs, Level 3 | Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	317	528
Fair Value, Inputs, Level 3 | Impaired loans | Market Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	317	528
Fair Value, Inputs, Level 3 | 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	1,466	1,683
Fair Value, Inputs, Level 3 | Private label residential
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring		0
Fair Value, Inputs, Level 3 | OREO and other repossessed assets
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Assets, estimated fair value, nonrecurring	$ 1,466	$ 1,683

Fair Value Measurements_ Schedu

Fair Value Measurements: Schedule of estimated fair values of financial instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Sep. 30, 2019
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
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	271,644	143,015
CDs held for investment	72,014	78,346
Investment securities	72,574	53,634
Investments in equity securities	977	958
FHLB stock	1,922	1,437
Other investments, at cost	3,000	3,000
Loans held for sale	9,837	6,071
Loans receivable, net	1,012,759	886,662
Accrued interest receivable	4,614	3,598
Certificates of deposit	163,926	165,655
FHLB borrowings	10,000
Accrued interest payable	313	333
Fair Value
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	271,644	143,015
CDs held for investment	72,014	78,346
Investment securities	74,520	55,112
Investments in equity securities	977	958
FHLB stock	1,922	1,437
Other investments, at cost	3,000	3,000
Loans held for sale	10,246	6,260
Loans receivable, net	1,034,204	892,495
Accrued interest receivable	4,614	3,598
Certificates of deposit	166,585	166,852
FHLB borrowings	10,125
Accrued interest payable	313	333
Fair Value | Fair Value, Inputs, Level 1
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	271,644	143,015
CDs held for investment	72,014	78,346
Investment securities	0	3,949
Investments in equity securities	977	958
FHLB stock	1,922	1,437
Other investments, at cost	3,000	3,000
Loans held for sale	10,246	6,260
Loans receivable, net	0	0
Accrued interest receivable	4,614	3,598
Certificates of deposit	0	0
FHLB borrowings	0
Accrued interest payable	313	333
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	74,520	51,163
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
FHLB borrowings	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	1,034,204	892,495
Accrued interest receivable	0	0
Certificates of deposit	166,585	166,852
FHLB borrowings	10,125
Accrued interest payable	$ 0	$ 0
[1]	Derived from audited consolidated financial statements.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Oct. 01, 2019	Sep. 30, 2019	[1]	Oct. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	$ 3,676		$ 5,323
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets		$ 2,890
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of Accounting Standards Update (ASU) 2016-01					$ 63
Retained Earnings | Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of Accounting Standards Update (ASU) 2016-01					$ 63
[1]	Derived from audited consolidated financial statements.