First Savings Financial (FSFG) 10-Q13 May 212021 Q2 Quarterly reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
Document And Entity Information - shares	Mar. 31, 2021	May 05, 2021
Document And Entity Information
Document Type	10-Q
Document Period End Date	Mar. 31, 2021
Document Quarterly Report	true
Document Transition Report	false
Entity Registrant Name	First Savings Financial Group, Inc.
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity File Number	1-34155
Entity Incorporation, State or Country Code	IN
Entity Tax Identification Number	37-1567871
Entity Address, Address Line One	702 North Shore Drive
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Jeffersonville
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	47130
City Area Code	812
Local Phone Number	283-0724
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common stock, $0.01 par value per share
Trading Symbol	FSFG
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		2,375,027
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001435508
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
ASSETS
Cash and due from banks	$ 13,040	$ 12,807
Interest-bearing deposits with banks	17,797	20,919
Total cash and cash equivalents	30,837	33,726
Interest-bearing time deposits	2,474	2,964
Securities available for sale, at fair value	205,374	201,965
Securities held to maturity	1,957	2,102
Loans held for sale, residential mortgage ($147,248 at fair value at March 31, 2021 and $208,493 at fair value at September 30, 2020)	190,437	263,406
Loans held for sale, Small Business Administration	16,704	22,119
Loans, net of allowance for loan losses of $17,419 at March 31, 2021 and $17,026 at September 30, 2020	1,128,348	1,090,063
Federal Reserve Bank and Federal Home Loan Bank stock, at cost	19,258	17,293
Premises and equipment	25,602	24,412
Other real estate owned, held for sale	2,043	1,728
Accrued interest receivable:
Loans	5,034	4,585
Securities	1,843	1,877
Cash surrender value of life insurance	32,160	31,758
Goodwill	9,848	9,848
Core deposit intangibles	1,095	1,202
Residential mortgage loan servicing rights, at fair value	45,245	21,703
SBA loan servicing rights	4,122	3,748
Other assets	28,228	30,126
Total Assets	1,750,609	1,764,625
Deposits:
Noninterest-bearing	284,742	242,673
Interest-bearing	810,754	805,403
Total deposits	1,095,496	1,048,076
Federal Home Loan Bank borrowings	289,237	310,858
Federal Reserve PPPLF borrowings	128,494	174,834
Other borrowings	19,831	19,797
Accrued interest payable	866	683
Advance payments by borrowers for taxes and insurance	1,488	2,615
Accrued expenses and other liabilities	42,157	50,197
Total Liabilities	1,577,569	1,607,060
EQUITY
Preferred stock of $.01 par value per share; authorized 1,000,000 shares; none issued
Common stock of $.01 par value per share; authorized 20,000,000 shares; issued 2,568,942 shares (2,567,842 at September 30, 2020 ); outstanding 2,375,027 shares (2,375,324 shares at September 30, 2020)	26	26
Additional paid-in capital	25,682	27,480
Retained earnings - substantially restricted	142,738	123,158
Accumulated other comprehensive income	9,182	11,209
Unearned stock compensation	(245)	(348)
Less treasury stock, at cost - 193,915 shares (192,518 shares at September 30, 2020)	(4,343)	(4,253)
Total First Savings Financial Group, Inc. Stockholders' Equity	173,040	157,272
Noncontrolling interests in subsidiary		293
Total Equity	173,040	157,565
Total Liabilities and Equity	$ 1,750,609	$ 1,764,625

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
CONSOLIDATED BALANCE SHEETS
Loans Held-for-sale, Fair Value Disclosure	$ 147,248	$ 208,493
Loans, net of allowance for loan losses	$ 17,419	$ 17,026
Preferred stock, par value	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, Shares Issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, Authorized	20,000,000	20,000,000
Common stock, issued	2,568,942	2,567,842
Common Stock, Outstanding	2,375,027	2,375,324
Treasury stock, shares	193,915	192,518

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
INTEREST INCOME
Loans, including fees	$ 15,047	$ 11,719	$ 29,285	$ 23,426
Securities:
Taxable	432	504	903	1,089
Tax-exempt	1,176	1,027	2,367	2,037
Dividend income	167	151	275	305
Interest-bearing deposits with banks	18	153	36	358
Total interest income	16,840	13,554	32,866	27,215
INTEREST EXPENSE
Deposits	771	1,625	1,707	3,374
Federal funds purchased and repurchase agreement		1		1
Federal Home Loan Bank borrowings	833	838	1,694	1,646
Federal Reserve PPPLF borrowings	137		290
Other borrowings	319	319	656	637
Total interest expense	2,060	2,783	4,347	5,658
Net interest income	14,780	10,771	28,519	21,557
Provision for loan losses	287	1,705	955	2,210
Net interest income after provision for loan losses	14,493	9,066	27,564	19,347
NONINTEREST INCOME
Service charges on deposit accounts	328	441	724	950
ATM and interchange fees	513	524	1,145	1,027
Net gain on sales of available for sale securities and time deposits		7		7
Net unrealized gain (loss) on equity securities	27	(29)	38	(27)
Net gain on sales of loans, Small Business Administration	3,239	1,229	4,506	1,990
Mortgage banking income	32,398	8,411	74,698	24,334
Increase in cash surrender value of life insurance	174	194	360	356
Commission income	365	83	499	110
Real estate lease income	149	152	296	303
Net gain (loss) on premises and equipment	71	(5)	71	(9)
Other income	1,709	126	2,819	324
Total noninterest income	38,973	11,133	85,156	29,365
NONINTEREST EXPENSE
Compensation and benefits	29,481	14,907	63,343	32,727
Occupancy and equipment	2,514	1,989	5,099	3,911
Data processing	549	546	1,338	1,048
Advertising	2,052	1,777	4,363	3,243
Professional fees	1,595	522	2,869	1,149
FDIC insurance premiums	94	99	234	103
Net (gain) loss on other real estate owned	1	(7)	4	(2)
Other operating expenses	2,998	2,242	6,436	4,168
Total noninterest expense	39,284	22,075	83,686	46,347
Income (Loss) before income taxes	14,182	(1,876)	29,034	2,365
Income tax expense	3,695	(774)	8,222	(136)
Net Income (Loss)	10,487	(1,102)	20,812	2,501
Less: net income (loss) attributable to noncontrolling interests		(475)	402	(311)
Net Income (Loss) Attributable to First Savings Financial Group, Inc.	$ 10,487	$ (627)	$ 20,410	$ 2,812
Net income (loss) per share:
Basic	$ 4.43	$ (0.27)	$ 8.62	$ 1.20
Diluted	$ 4.39	$ (0.26)	$ 8.55	$ 1.18
Weighted average shares outstanding:
Basic	2,369,642	2,355,750	2,368,338	2,348,145
Diluted	2,388,063	2,379,901	2,386,375	2,381,356
Dividends per share	$ 0.18	$ 0.17	$ 0.35	$ 0.33

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net Income (Loss)	$ 10,487	$ (1,102)	$ 20,812	$ 2,501
Unrealized losses on securities available for sale:
Unrealized holding losses arising during the period	(3,427)	(7,929)	(2,565)	(8,677)
Income tax benefit	720	1,694	538	1,858
Net of tax amount	(2,707)	(6,235)	(2,027)	(6,819)
Less: reclassification adjustment for realized (gains) losses included in net income		(7)		(7)
Income tax expense		2		2
Net of tax amount		(5)		(5)
Other Comprehensive Loss	(2,707)	(6,240)	(2,027)	(6,824)
Comprehensive Income (Loss)	7,780	(7,342)	18,785	(4,323)
Less: comprehensive income (loss) attributable to noncontrolling interests		(475)	402	(311)
Comprehensive Income (Loss) Attributable to First Savings Financial Group, Inc.	$ 7,780	$ (6,867)	$ 18,383	$ (4,012)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained EarningsCumulative Effect Period Of Adoption Adjustment Member	Retained Earnings	Accumulated Other Comprehensive Income	Unearned Stock Compensation	Treasury Stock	Noncontrolling Interests in Subsidiary	Cumulative Effect Period Of Adoption Adjustment Member	Total
Balances at Sep. 30, 2019	$ 26	$ 27,494		$ 91,228	$ 7,296	$ (446)	$ (4,545)	$ 204		$ 121,257
Net Income (Loss)				2,812				(311)		2,501
Other comprehensive income (loss)					(6,824)					(6,824)
Common stock dividends				(781)						(781)
Distributions to noncontrolling interests								(307)		(307)
Restricted stock grants		95				(95)
Stock compensation expense		42				95				137
Stock option exercises		(195)					593			398
Purchase of treasury shares							(302)			(302)
Balances at Mar. 31, 2020	26	27,436		93,425	472	(446)	(4,254)	(414)		116,245
Balances at Dec. 31, 2019	26	27,582		94,455	6,712	(495)	(4,470)	368		124,178
Net Income (Loss)				(627)				(475)		(1,102)
Other comprehensive income (loss)					(6,240)					(6,240)
Common stock dividends				(403)						(403)
Restricted stock grants								(307)		(307)
Stock compensation expense		21				49				70
Stock option exercises		(167)					465			298
Purchase of treasury shares							(249)			(249)
Balances at Mar. 31, 2020	26	27,436		93,425	472	(446)	(4,254)	(414)		116,245
Cumulative effect adjustment, adoption of ASU 2016-02			$ 166						$ 166
Cumulative effect adjustment, adoption of ASU 2016-02										123,158
Balances at Sep. 30, 2020	26	27,480		123,158	11,209	(348)	(4,253)	293		157,565
Net Income (Loss)				20,410				402		20,812
Acquisition of minority interests in Q2		(1,888)						$ (695)		(2,583)
Other comprehensive income (loss)					(2,027)					(2,027)
Common stock dividends				(830)						(830)
Restricted stock forfeitures		(8)				8
Stock compensation expense		46				95				141
Stock option exercises		52								52
Purchase of treasury shares							(90)			(90)
Balances at Mar. 31, 2021	26	25,682		142,738	9,182	(245)	(4,343)			173,040
Balances at Dec. 31, 2020	26	25,737		132,680	11,889	(292)	(4,295)			165,745
Net Income (Loss)				10,487						10,487
Acquisition of minority interests in Q2		(131)								(131)
Other comprehensive income (loss)					(2,707)					(2,707)
Common stock dividends				(429)						(429)
Stock compensation expense		24				47				71
Stock option exercises		52								52
Purchase of treasury shares							(48)			(48)
Balances at Mar. 31, 2021	$ 26	$ 25,682		$ 142,738	$ 9,182	$ (245)	$ (4,343)			173,040
Cumulative effect adjustment, adoption of ASU 2016-02										$ 142,738

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
Common Stock, Dividends, Per Share, Declared	$ 0.18	$ 0.17	$ 0.35	$ 0.33
Restricted stock grants - shares				1,436
Restricted stock forfeitures - shares			200
Stock option exercises, shares	100	21,861	1,300	28,361
Purchase of treasury shares, shares	745	3,906	1,397	4,702

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 20,812	$ 2,501
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses	955	2,210
Depreciation and amortization	1,132	761
Amortization of premiums and accretion of discounts on securities, net	360	269
Amortization and accretion of fair value adjustments on loans, net	(730)	(475)
Loans originated for sale	(2,812,924)	(1,111,120)
Proceeds on sales of loans	2,931,516	1,065,708
Net realized and unrealized gain on loans held for sale	(39,282)	(25,247)
Capitalization of loan servicing rights	(28,555)	(4,736)
Net change in value of loan servicing rights	4,639	1,754
Net realized and unrealized gain on other real estate owned	(6)	(13)
Net gain on sales of available for sale securities and time deposits		(7)
Increase in cash surrender value of life insurance	(360)	(356)
Net (gain) loss on equity securities	(38)	27
Net (gain) loss on sale of premises and equipment	(71)	9
Deferred income taxes	5,499	415
Stock compensation expense	141	139
Increase in accrued interest receivable	(415)	(116)
Increase (decrease) in accrued interest payable	183	(148)
Change in other assets and liabilities, net	(10,242)	2,417
Net Cash Provided By (Used In) Operating Activities	72,614	(66,008)
CASH FLOWS FROM INVESTING ACTIVITIES
Investment in interest-bearing time deposits	(252)	(490)
Proceeds from sales and maturities of interest-bearing time deposits	735	245
Purchase of securities available for sale	(17,766)	(27,406)
Proceeds from sales of securities available for sale		3,180
Proceeds from maturities of securities available for sale	9,368	4,150
Proceeds from maturities of securities held to maturity	135	139
Principal collected on securities	2,073	3,753
Net increase in loans	(40,041)	(68,638)
Proceeds from redemption of Federal Reserve Bank stock	53
Purchase of Federal Home Loan Bank stock	(2,018)	(3,578)
Investment in cash surrender value of life insurance	(42)	(4,481)
Proceeds from sale of other real estate owned	61	68
Purchase of premises and equipment	(2,507)	(5,345)
Proceeds from sales of premises and equipment	404	118
Acquisition of minority interests in Q2	(3,172)
Net Cash Used In Investing Activities	(52,969)	(98,285)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	47,420	102,922
Net decrease in federal funds purchased	0	(4,000)
Decrease in Federal Home Loan Bank line of credit	(11,620)	(12,544)
Proceeds from Federal Home Loan Bank advances	340,000	240,000
Repayment of Federal Home Loan Bank advances	(350,000)	(180,000)
Net decrease in Federal Reserve PPPLF borrowings	(46,340)
Net increase (decrease) in advance payments by borrowers for taxes and insurance	(1,127)	79
Proceeds from exercise of stock options	4	148
Taxes paid on stock award shares for employees	(41)	(53)
Dividends paid on common stock	(830)	(781)
Distributions to noncontrolling interests		(307)
Net Cash Provided By (Used In) Financing Activities	(22,534)	145,464
Net Decrease in Cash and Cash Equivalents	(2,889)	(18,829)
Cash and cash equivalents at beginning of period	33,726	41,432
Cash and Cash Equivalents at End of Period	$ 30,837	$ 22,603

Presentation of Interim Informa

Presentation of Interim Information	6 Months Ended
Presentation of Interim Information	Mar. 31, 2021
Presentation of Interim Information
Presentation of Interim Information	1. Presentation of Interim Information First Savings Financial Group, Inc. (the “Company”) is a financial holding company and the parent of First Savings Bank (the “Bank”) and First Savings Insurance Risk Management, Inc. (the “Captive”). The Bank, which is a wholly-owned Indiana-chartered commercial bank subsidiary of the Company, provides a variety of banking services to individuals and business customers through 16 locations in southern Indiana. The Bank attracts deposits primarily from the general public and uses those funds, along with other borrowings, primarily to originate commercial mortgage, residential mortgage, construction, commercial business and consumer loans, and to a lesser extent, to invest in mortgage-backed securities, municipal bonds and other investment securities. The Bank has two wholly-owned subsidiaries: First Savings Investments, Inc., a Nevada corporation that manages a securities portfolio, and Southern Indiana Financial Corporation, which is currently inactive. The Captive, which is a wholly-owned insurance subsidiary of the Company, is a Nevada corporation that provides property and casualty insurance to the Company, the Bank and the Bank’s active subsidiaries. In addition, the Captive provides reinsurance to 11 other third-party insurance captives for which insurance may not be currently available or economically feasible in the insurance marketplace. On April 25, 2017, the Bank formed Q2 Business Capital, LLC (“Q2”), which is an Indiana limited liability company that specializes in the origination and servicing of U.S. Small Business Administration (“SBA”) loans. The Bank originally owned 51% of Q2’s membership interests. On December 31, 2020, the Bank completed the acquisition of the minority interests in Q2, and Q2 became a wholly-owned subsidiary of the Bank. As part of the acquisition of the minority interests, the Bank paid total consideration of $3.1 million. The acquisition was accounted for as an equity transaction, and resulted in the reclassification of the noncontrolling interests of $695,000, the recognition of net deferred tax assets of $590,000 and a reduction of additional paid-in capital of $1.9 million. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments considered necessary to present fairly the financial position as of March 31, 2021, the results of operations for the three- and six-month periods ended March 31, 2021 and 2020, and the cash flows for the six-month periods ended March 31, 2021 and 2020. All of these adjustments are of a normal, recurring nature. Such adjustments are the only adjustments included in the unaudited consolidated financial statements. Interim results are not necessarily indicative of results for a full year. The unaudited consolidated financial statements and notes have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial statements, conform to general practices within the banking industry and are presented as permitted by the instructions to Form 10-Q. Accordingly, they do not contain certain information included in the Company’s audited consolidated financial statements and related notes for the year ended September 30, 2020 included in the Company’s Annual Report on Form 10-K. The unaudited consolidated financial statements include the accounts of the Company and its subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform with the current period presentation. The reclassifications had no effect on net income or stockholders’ equity.

Investment Securities

Investment Securities	6 Months Ended
Investment Securities	Mar. 31, 2021
Investment Securities
Investment Securities	2. Investment Securities U.S. agency bonds and notes, agency mortgage-backed securities and agency collateralized mortgage obligations (“CMO”) include treasury notes issued by the U.S. government; securities issued by the Government National Mortgage Association (“GNMA”), a U.S. government agency; and securities issued by the Federal National Mortgage Association (“FNMA”), the Federal Home Loan Mortgage Corporation (“FHLMC”) and the Federal Home Loan Bank (“FHLB”), which are U.S. government sponsored enterprises. The Company holds municipal bonds issued by municipal governments within the U.S. The Company also holds pass-through asset-backed securities guaranteed by the SBA representing participating interests in pools of long term debentures issued by state and local development companies certified by the SBA. Privately issued CMO and asset-backed securities (“ABS”) are complex securities issued by non-government special purpose entities that are collateralized by residential mortgage loans and residential home equity loans. Investment securities have been classified according to management’s intent. Securities Available for Sale and Held to Maturity The amortized cost of securities available for sale and held to maturity and their approximate fair values are as follows: Gross Gross Amortized Unrealized Unrealized Fair Cost Gain Losses Value (In thousands) March 31, 2021: Securities available for sale: U.S. agency bonds and notes $ 500 $ — $ — $ 500 Agency mortgage-backed 9,374 380 105 9,649 Agency CMO 8,965 219 39 9,145 Privately-issued CMO 776 89 7 858 Privately-issued ABS 794 67 1 860 SBA certificates 2,355 4 26 2,333 Municipal bonds 170,986 11,477 434 182,029 Total securities available for sale $ 193,750 $ 12,236 $ 612 $ 205,374 Securities held to maturity: Agency mortgage-backed $ 73 $ 6 $ — $ 79 Municipal bonds 1,884 256 — 2,140 Total securities held to maturity $ 1,957 $ 262 $ — $ 2,219 Gross Gross Amortized Unrealized Unrealized Fair Cost Gain Losses Value (In thousands) September 30, 2020: Securities available for sale: Agency mortgage-backed $ 7,499 $ 453 $ — $ 7,952 Agency CMO 9,398 407 — 9,805 Privately-issued CMO 886 80 8 958 Privately-issued ABS 884 81 5 960 SBA certificates 639 58 3 694 Municipal bonds 168,472 13,180 56 181,596 Total securities available for sale $ 187,778 $ 14,259 $ 72 $ 201,965 Securities held to maturity: Agency mortgage-backed $ 82 $ 7 $ — $ 89 Municipal bonds 2,020 276 — 2,296 Total securities held to maturity $ 2,102 $ 283 $ — $ 2,385 The amortized cost and fair value of investment securities as of March 31, 2021 by contractual maturity are shown below. CMO, ABS, SBA certificates, and mortgage-backed securities which do not have a single maturity date are shown separately. Available for Sale Held to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Due within one year $ 8,501 $ 8,588 $ 253 $ 282 Due after one year through five years 27,848 29,071 971 1,095 Due after five years through ten years 30,486 32,508 660 763 Due after ten years 104,651 112,362 — — CMO 9,741 10,003 — — ABS 794 860 — — SBA certificates 2,355 2,333 — — Mortgage-backed securities 9,374 9,649 73 79 $ 193,750 $ 205,374 $ 1,957 $ 2,219 Information pertaining to investment securities with gross unrealized losses at March 31, 2021 and September 30, 2020, aggregated by investment category and the length of time that individual securities have been in a continuous loss position, follows: Number of Gross Investment Fair Unrealized Positions Value Losses (Dollars in thousands) March 31, 2021: Securities available for sale: Continuous loss position less than twelve months: Agency mortgage-backed 1 $ 3,076 $ 105 Agency CMO 2 1,456 39 SBA certificates 1 2,179 25 Municipal bonds 12 10,213 271 Total less than twelve months 16 16,924 440 Continuous loss position more than twelve months: Privately-issued CMO 1 23 7 Privately-issued ABS 1 400 1 SBA certificates 1 115 1 Municipal bonds 1 1,837 163 Total more than twelve months 4 2,375 172 Total securities available for sale 20 $ 19,299 $ 612 September 30, 2020: Securities available for sale: Continuous loss position less than twelve months: Privately-issued ABS 1 $ 446 $ 5 Municipal bonds 2 2,444 56 Total less than twelve months 3 2,890 61 Continuous loss position more than twelve months: Privately-issued CMO 1 26 8 SBA certificates 1 188 3 Total more than twelve months 2 214 11 Total securities available for sale 5 $ 3,104 $ 72 At March 31, 2021 and September 30, 2020, the Company did not have any securities held to maturity with an unrealized loss. Management evaluates securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. Consideration is given to (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. The total available for sale debt securities in loss positions at March 31, 2021, which consisted of agency mortgage-backed securities, agency CMOs, privately-issued CMOs, privately-issued ABS, municipal bonds and SBA certificates, had a fair value as a percentage of amortized cost of 96.93%. The municipal securities are issued by municipal governments, and are generally secured by municipal project revenues or general obligations of the municipality. The Company evaluates the existence of a potential credit loss component related to the decline in fair value of the privately issued CMO and ABS portfolios each quarter using an independent third party analysis. At March 31, 2021, the Company held eleven privately-issued CMO and ABS securities, acquired in a 2009 bank merger, with an aggregate amortized cost of $562,000 and fair value of $580,000 that have been downgraded to a substandard regulatory classification due to the security’s credit quality rating by various rating agencies. At March 31, 2021, one privately-issued CMO security and one privately-issued ABS were in a loss position, and had depreciated approximately 1.86% from the Company’s carrying value and were collateralized by residential mortgage loans. These securities had a total fair value of $423,000 and a total unrealized loss of $8,000 at March 31, 2021. Based on the independent third party analysis of the expected cash flows, management determined that no other-than-temporary impairment was required to be recognized on the privately issued CMO and ABS portfolios at March 31, 2021. While the Company does not anticipate additional credit-related impairment losses at March 31, 2021, additional deterioration in market and economic conditions may have an adverse impact on the credit quality of the portfolio, and therefore, require a credit related impairment charge in the future. The unrealized losses on agency mortgage-backed securities, agency CMOs, SBA certificates and municipal bonds relate principally to current interest rates for similar types of securities. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government, its agencies, or other governments, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuer’s financial condition. As management has the ability to hold debt securities to maturity, or for the foreseeable future if classified as available for sale, no declines are deemed to be other-than-temporary. During the three and six-month periods ended March 31, 2021, the Company did not realize any gross gains or losses on sales of available for sale securities. During the three and six-month periods ended March 31, 2020, the Company realized gross gains on sales of available for sale securities of $15,000, and gross losses of $8,000. Certain available for sale debt securities were pledged to secure FHLB borrowings at March 31, 2021 and September 30, 2020, and may be pledged to secure federal funds borrowings.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	6 Months Ended
Loans and Allowance for Loan Losses	Mar. 31, 2021
Loans and Allowance for Loan Losses
Loans and Allowance for Loan Losses	3. Loans and Allowance for Loan Losses Loans at March 31, 2021 and September 30, 2020 consisted of the following: March 31, September 30, 2021 2020 (In thousands) Real estate mortgage: 1-4 family residential $ 205,129 $ 191,781 Commercial 141,122 141,522 Single tenant net lease 372,074 334,636 SBA 57,556 55,508 Multifamily residential 44,434 42,368 Residential construction 5,389 9,361 Commercial construction 9,193 6,941 Land and land development 10,894 9,403 Commercial business 63,392 60,513 SBA commercial business (1) 182,167 206,807 Consumer 55,800 50,576 Total loans 1,147,150 1,109,416 Deferred loan origination fees and costs, net (2) (1,383) (2,327) Allowance for loan losses (17,419) (17,026) Loans, net $ 1,128,348 $ 1,090,063 (1) Includes $159.3 million and $180.6 million of loans originated under the SBA’s Paycheck Protection Program ("PPP") at March 31, 2021 and September 30, 2020, respectively. (2) Includes $2.1 million and $3.2 million of net deferred loan fees related to PPP loans as of March 31, 2021 and September 30, 2020, respectively. During the six-month period ended March 31, 2021, there were no significant changes in the Company’s lending activities or the methodology used to estimate the allowance for loan losses as disclosed in the Company’s Annual Report on Form 10-K for the year ended September 30, 2020. At March 31, 2021 and September 30, 2020, the Bank did not own any residential real estate properties where physical possession has been obtained. At March 31, 2021 and September 30, 2020, the recorded investment in consumer mortgage loans collateralized by residential real estate properties in the process of foreclosure was $796,000 and $1.3 million, respectively. The following table provides the components of the recorded investment in loans as of March 31, 2021: Principal Accrued Net Deferred Recorded Loan Interest Loan Origination Investment Balance Receivable Fees and Costs in Loans (In thousands) Residential real estate $ 205,129 $ 638 $ (295) $ 205,472 Commercial real estate 141,122 601 (189) 141,534 Single tenant net lease 372,074 1,242 (173) 373,143 SBA commercial real estate 57,556 528 1,026 59,110 Multifamily 44,434 122 (48) 44,508 Residential construction 5,389 7 (27) 5,369 Commercial construction 9,193 30 (28) 9,195 Land and land development 10,894 26 (10) 10,910 Commercial business 63,392 185 46 63,623 SBA commercial business 182,167 1,495 (1,664) 181,998 Consumer 55,800 160 (21) 55,939 $ 1,147,150 $ 5,034 $ (1,383) $ 1,150,801 Individually Collectively Recorded Evaluated for Evaluated for Investment in Impairment Impairment Loans (In thousands) Recorded Investment in Loans as Evaluated for Impairment: Residential real estate $ 3,663 $ 201,809 $ 205,472 Commercial real estate 1,088 140,446 141,534 Single tenant net lease — 373,143 373,143 SBA commercial real estate 5,386 53,724 59,110 Multifamily 648 43,860 44,508 Residential construction — 5,369 5,369 Commercial construction — 9,195 9,195 Land and land development 4 10,906 10,910 Commercial business 1,706 61,917 63,623 SBA commercial business 768 181,230 181,998 Consumer 162 55,777 55,939 $ 13,425 $ 1,137,376 $ 1,150,801 The following table provides the components of the recorded investment in loans as of September 30, 2020: Principal Accrued Net Deferred Recorded Loan Interest Loan Origination Investment Balance Receivable Fees and Costs in Loans (In thousands) Residential real estate $ 191,781 $ 644 $ (156) $ 192,269 Commercial real estate 141,522 812 (197) 142,137 Single tenant net lease 334,636 1,198 (234) 335,600 SBA commercial real estate 55,508 387 1,082 56,977 Multifamily 42,368 139 (37) 42,470 Residential construction 9,361 25 (28) 9,358 Commercial construction 6,941 24 (26) 6,939 Land and land development 9,403 20 (11) 9,412 Commercial business 60,513 186 43 60,742 SBA commercial business 206,807 975 (2,740) 205,042 Consumer 50,576 175 (23) 50,728 $ 1,109,416 $ 4,585 $ (2,327) $ 1,111,674 Individually Collectively Recorded Evaluated for Evaluated for Investment in Impairment Impairment Loans (In thousands) Recorded Investment in Loans as Evaluated for Impairment: Residential real estate $ 5,359 $ 186,910 $ 192,269 Commercial real estate 1,134 141,003 142,137 Single tenant net lease — 335,600 335,600 SBA commercial real estate 6,927 50,050 56,977 Multifamily 698 41,772 42,470 Residential construction — 9,358 9,358 Commercial construction — 6,939 6,939 Land and land development 2 9,410 9,412 Commercial business 1,670 59,072 60,742 SBA commercial business 695 204,347 205,042 Consumer 199 50,529 50,728 $ 16,684 $ 1,094,990 $ 1,111,674 The following table presents the balance in the allowance for loan losses by portfolio segment and based on impairment method as of March 31, 2021 and September 30, 2020: Individually Collectively Evaluated for Evaluated for Ending Impairment Impairment Balance (In thousands) March 31, 2021: Residential real estate $ 27 $ 1,595 $ 1,622 Commercial real estate — 3,060 3,060 Single tenant net lease — 3,349 3,349 SBA commercial real estate 501 3,301 3,802 Multifamily — 810 810 Residential construction — 136 136 Commercial construction — 239 239 Land and land development — 283 283 Commercial business 5 1,531 1,536 SBA commercial business 41 1,508 1,549 Consumer — 1,033 1,033 $ 574 $ 16,845 $ 17,419 September 30, 2020: Residential real estate $ 30 $ 1,225 $ 1,255 Commercial real estate — 3,058 3,058 Single tenant net lease — 3,017 3,017 SBA commercial real estate 1,366 2,788 4,154 Multifamily — 772 772 Residential construction — 243 243 Commercial construction — 181 181 Land and land development — 243 243 Commercial business — 1,449 1,449 SBA commercial business 47 1,492 1,539 Consumer — 1,115 1,115 $ 1,443 $ 15,583 $ 17,026 The following table presents the activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2021 and 2020: Beginning Ending Balance Provisions Charge-Offs Recoveries Balance (In thousands) March 31, 2021: Residential real estate $ 1,176 $ 442 $ — $ 4 $ 1,622 Commercial real estate 3,007 53 — — 3,060 Single tenant net lease 3,233 116 — — 3,349 SBA commercial real estate 3,624 178 — — 3,802 Multifamily 713 97 — — 810 Residential construction 149 (13) — — 136 Commercial construction 212 27 — — 239 Land and land development 300 (17) — — 283 Commercial business 1,487 45 — 4 1,536 SBA commercial business 1,536 3 — 10 1,549 Consumer 1,687 (644) (22) 12 1,033 $ 17,124 $ 287 $ (22) $ 30 $ 17,419 March 31, 2020: Residential real estate $ 318 $ 54 $ (4) $ 11 $ 379 Commercial real estate 2,595 (2) (100) — 2,493 Single tenant net lease 1,947 (581) — — 1,366 SBA commercial real estate 2,282 937 (7) — 3,212 Multifamily 481 18 — — 499 Residential construction 228 (42) — — 186 Commercial construction 57 8 — — 65 Land and land development 202 1 — — 203 Commercial business 967 674 — 1 1,642 SBA commercial business 786 555 (396) — 945 Consumer 667 83 (62) 13 701 $ 10,530 $ 1,705 $ (569) $ 25 $ 11,691 The following table presents the activity in the allowance for loan losses by portfolio segment for the six months ended March 31, 2021 and 2020: Beginning Ending Balance Provisions Charge-Offs Recoveries Balance (In thousands) March 31, 2021: Residential real estate $ 1,255 $ 363 $ (5) $ 9 $ 1,622 Commercial real estate 3,058 2 — — 3,060 Single tenant net lease 3,017 332 — — 3,349 SBA commercial real estate 4,154 163 (522) 7 3,802 Multifamily 772 38 — — 810 Residential construction 243 (107) — — 136 Commercial construction 181 58 — — 239 Land and land development 243 40 — — 283 Commercial business 1,449 82 — 5 1,536 SBA commercial business 1,539 (10) — 20 1,549 Consumer 1,115 (6) (97) 21 1,033 $ 17,026 $ 955 $ (624) $ 62 $ 17,419 March 31, 2020: Residential real estate $ 317 $ 78 $ (36) $ 20 $ 379 Commercial real estate 2,540 53 (100) — 2,493 Single tenant net lease 1,675 (309) — — 1,366 SBA commercial real estate 2,293 888 (15) 46 3,212 Multifamily 478 21 — — 499 Residential construction 248 (62) — — 186 Commercial construction 67 (2) — — 65 Land and land development 209 (6) — — 203 Commercial business 889 747 — 6 1,642 SBA commercial business 750 591 (396) — 945 Consumer 574 211 (126) 42 701 $ 10,040 $ 2,210 $ (673) $ 114 $ 11,691 The following table presents impaired loans individually evaluated for impairment as of March 31, 2021 and for the three and six-months ended March 31, 2021 and 2020. The Company did not recognize any interest income on impaired loans using the cash receipts method during the three and six-month periods ended March 31, 2021 and 2020. Three Months Ended Six Months Ended At March 31, 2021 March 31, March 31, 2021 2021 2020 2020 2021 2021 2020 2020 Unpaid Average Interest Average Interest Average Interest Average Interest Recorded Principal Related Recorded Income Recorded Income Recorded Income Recorded Income Investment Balance Allowance Investment Recognized Investment Recognized Investment Recognized Investment Recognized (In thousands) Loans with no related allowance recorded: Residential real estate $ 3,491 $ 4,115 $ — $ 4,503 $ 11 $ 5,338 $ 34 $ 4,899 $ 38 $ 5,215 $ 61 Commercial real estate 1,088 1,154 — 1,161 9 4,659 35 1,169 15 4,861 80 Single tenant net lease 0 0 — 0 — — — 0 0 — — SBA commercial real estate 593 768 — 2,755 — 740 12 2,229 0 541 29 Multifamily 648 693 — 693 — 352 — 696 0 234 — Residential construction — — — 0 — — — 0 0 — 0 Commercial construction — — — 0 — — — 0 0 — — Land and land development 4 1 — 1 — 1 — 1 0 — — Commercial business 1,701 1,758 — 1,712 1 139 — 1,700 1 128 1 SBA commercial business 322 416 — 416 — 208 — 416 0 139 — Consumer 55 56 — 97 — 75 — 86 1 77 2 $ 7,902 $ 8,961 $ — $ 11,358 $ 21 $ 11,512 $ 81 $ 11,196 $ 55 $ 11,195 $ 173 Loans with an allowance recorded: Residential real estate $ 172 $ 175 $ 27 $ 88 $ — $ 55 $ — $ 117 $ — $ 39 $ — Commercial real estate — — — 0 — 50 — — — 33 — Single tenant net lease — — — 0 — — — — — — — SBA commercial real estate 4,793 5,415 501 3,548 — 4,561 — 4,394 — 3,920 — Multifamily — — — 0 — — — — — — — Residential construction — — — 0 — — — — — — — Commercial construction — — — 0 — — — — — — — Land and land development — — — 0 — — — — — — — Commercial business 5 5 5 2 — 783 — 2 — 522 — SBA commercial business 446 553 41 410 — 157 — 406 — 105 — Consumer 107 107 — 220 — 183 — 193 — 174 — $ 5,523 $ 6,255 $ 574 $ 4,268 $ — $ 5,789 $ — $ 5,112 $ — $ 4,793 $ — Total: Residential real estate $ 3,663 $ 4,290 $ 27 $ 4,591 $ 11 $ 5,393 $ 34 $ 5,016 $ 38 $ 5,254 $ 61 Commercial real estate 1,088 1,154 — 1,161 9 4,709 35 1,169 15 4,894 80 Single tenant net lease — — — — — — — — — — — SBA commercial real estate 5,386 6,183 501 6,303 — 5,301 12 6,623 — 4,461 29 Multifamily 648 693 — 693 — 352 — 696 — 234 — Residential construction — — — — — — — — — — — Commercial construction — — — — — — — — — — — Land and land development 4 1 — 1 — 1 — 1 — — — Commercial business 1,706 1,763 5 1,714 1 922 — 1,702 1 650 1 SBA commercial business 768 969 41 826 — 365 — 822 — 244 — Consumer 162 163 0 317 — 258 — 279 1 251 2 $ 13,425 $ 15,216 $ 574 $ 15,606 $ 21 $ 17,301 $ 81 $ 16,308 $ 55 $ 15,988 $ 173 The following table presents impaired loans individually evaluated for impairment as of September 30, 2020. Unpaid Recorded Principal Related Investment Balance Allowance (In thousands) Loans with no related allowance recorded: Residential real estate $ 5,185 $ 5,697 $ — Commercial real estate 1,134 1,185 — Single tenant net lease — — — SBA commercial real estate 1,245 1,178 — Multifamily 698 700 — Residential construction — — — Commercial construction — — — Land and land development 2 1 — Commercial business 1,670 1,675 — SBA commercial business 322 416 — Consumer 61 63 — $ 10,317 $ 10,915 $ — Loans with an allowance recorded: Residential real estate $ 174 $ 175 $ 30 Commercial real estate — — — Single tenant net lease — — — SBA commercial real estate 5,682 6,086 1,366 Multifamily — — — Residential construction — — — Commercial construction — — — Land and land development — — — Commercial business — — — SBA commercial business 373 399 47 Consumer 138 138 — $ 6,367 $ 6,798 $ 1,443 Total: Residential real estate $ 5,359 $ 5,872 $ 30 Commercial real estate 1,134 1,185 — Single tenant net lease — — — SBA commercial real estate 6,927 7,264 1,366 Multifamily 698 700 — Residential construction — — — Commercial construction — — — Land and land development 2 1 — Commercial business 1,670 1,675 — SBA commercial business 695 815 47 Consumer 199 201 — $ 16,684 $ 17,713 $ 1,443 Nonperforming loans consist of nonaccrual loans and loans over 90 days past due and still accruing interest. The following table presents the recorded investment in nonperforming loans at March 31, 2021 and September 30, 2020: At March 31, 2021 At September 30, 2020 Loans 90+ Loans 90+ Days Total Days Total Nonaccrual Past Due Nonperforming Nonaccrual Past Due Nonperforming Loans Still Accruing Loans Loans Still Accruing Loans (In thousands) Residential real estate $ 2,256 $ — $ 2,256 $ 2,797 $ — $ 2,797 Commercial real estate 650 — 650 685 — 685 Single tenant net lease — — — — — — SBA commercial real estate 5,386 — 5,386 6,927 — 6,927 Multifamily 648 — 648 698 — 698 Residential construction — — — — — — Commercial construction — — — — — — Land and land development 4 — 4 2 — 2 Commercial business 1,582 — 1,582 1,668 — 1,668 SBA commercial business 768 — 768 695 — 695 Consumer 112 — 112 143 — 143 Total $ 11,406 $ — $ 11,406 $ 13,615 $ — $ 13,615 The following table presents the aging of the recorded investment in past due loans at March 31, 2021: 30-59 Days 60-89 Days 90+ Days Total Total Past Due Past Due Past Due Past Due Current Loans (In thousands) Residential real estate $ 1,716 $ — $ 686 $ 2,402 $ 203,070 $ 205,472 Commercial real estate 88 — 650 738 140,796 141,534 Single tenant net lease — — — — 373,143 373,143 SBA commercial real estate — 469 4,419 4,888 54,222 59,110 Multifamily — — — — 44,508 44,508 Residential construction — — — — 5,369 5,369 Commercial construction — — — — 9,195 9,195 Land and land development — — 4 4 10,906 10,910 Commercial business 120 — 37 157 63,466 63,623 SBA commercial business — — 768 768 181,230 181,998 Consumer 64 243 5 312 55,627 55,939 Total $ 1,988 $ 712 $ 6,569 $ 9,269 $ 1,141,532 $ 1,150,801 The following table presents the aging of the recorded investment in past due loans at September 30, 2020: 30-59 60-89 90+ Days Days Days Total Total Past Due Past Due Past Due Past Due Current Loans (In thousands) Residential real estate $ 1,693 $ 480 $ 1,631 $ 3,804 $ 188,465 $ 192,269 Commercial real estate 109 — 685 794 141,343 142,137 Single tenant net lease — — — — 335,600 335,600 SBA commercial real estate — — 1,874 1,874 55,103 56,977 Multifamily — — — — 42,470 42,470 Residential construction — — — — 9,358 9,358 Commercial construction — — — — 6,939 6,939 Land and land development — — 2 2 9,410 9,412 Commercial business 63 — — 63 60,679 60,742 SBA commercial business 373 — 322 695 204,347 205,042 Consumer 233 59 4 296 50,432 50,728 Total $ 2,471 $ 539 $ 4,518 $ 7,528 $ 1,104,146 $ 1,111,674 The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, public information, historical payment experience, credit documentation, and current economic conditions and trends, among other factors. The Company classifies loans based on credit risk at least quarterly. The Company uses the following regulatory definitions for risk ratings: Special Mention: Substandard: Doubtful: Loss: Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans. The following table presents the recorded investment in loans by risk category as of March 31, 2021: Special Pass Mention Substandard Doubtful Loss Total (In thousands) March 31, 2021: Residential real estate $ 202,664 $ — $ 2,628 $ 180 $ — $ 205,472 Commercial real estate 133,444 4,108 3,982 — — 141,534 Single tenant net lease 373,143 — — — — 373,143 SBA commercial real estate 41,698 5,418 8,699 3,295 — 59,110 Multifamily 43,860 — 648 — — 44,508 Residential construction 5,369 — — — — 5,369 Commercial construction 9,195 — — — — 9,195 Land and land development 10,906 — 4 — — 10,910 Commercial business 61,728 149 1,746 — — 63,623 SBA commercial business 178,540 250 3,174 34 — 181,998 Consumer 55,934 — 5 — — 55,939 Total $ 1,116,481 $ 9,925 $ 20,886 $ 3,509 $ — $ 1,150,801 The following table presents the recorded investment in loans by risk category as of September 30, 2020: Special Pass Mention Substandard Doubtful Loss Total (In thousands) September 30, 2020: Residential real estate $ 188,707 $ — $ 3,435 $ 127 $ — $ 192,269 Commercial real estate 133,685 4,112 4,340 — — 142,137 Single tenant net lease 335,600 — — — — 335,600 SBA commercial real estate 38,124 6,518 12,335 — — 56,977 Multifamily 41,772 — 698 — — 42,470 Residential construction 9,358 — — — — 9,358 Commercial construction 6,939 — — — — 6,939 Land and land development 9,410 — 2 — — 9,412 Commercial business 58,707 235 1,800 — — 60,742 SBA commercial business 200,578 294 4,170 — — 205,042 Consumer 50,701 — 27 — — 50,728 Total $ 1,073,581 $ 11,159 $ 26,807 $ 127 $ — $ 1,111,674 Troubled Debt Restructurings Modification of a loan is considered to be a troubled debt restructuring (“TDR”) if the debtor is experiencing financial difficulties and the Company grants a concession to the debtor that it would not otherwise consider. By granting the concession, the Company expects to obtain more cash or other value from the debtor, or to increase the probability of receipt, than would be expected by not granting the concession. The concession may include, but is not limited to, reduction of the stated interest rate of the loan, reduction of accrued interest, extension of the maturity date or reduction of the face amount or maturity amount of the debt. A concession will be granted when, as a result of the restructuring, the Company does not expect to collect all amounts due, including interest at the original stated rate. A concession may also be granted if the debtor is not able to access funds elsewhere at a market rate for debt with similar risk characteristics as the restructured debt. The Company’s determination of whether a loan modification is a TDR considers the individual facts and circumstances surrounding each modification. Loans modified in a TDR may be retained on accrual status if the borrower has maintained a period of performance in which the borrower’s lending relationship was not greater than ninety days delinquent at the time of restructuring and the Company determines the future collection of principal and interest is reasonably assured. Loans modified in a TDR that are placed on nonaccrual status at the time of restructuring will continue on nonaccrual status until the Company determines the future collection of principal and interest is reasonably assured, which generally requires that the borrower demonstrate a period of performance according to the restructured terms of at least six consecutive months. The following table summarizes the Company’s recorded investment in TDRs at March 31, 2021 and September 30, 2020. There was $32,000 of specific reserve included in the allowance for loan losses related to TDRs at March 31, 2021. There was $538,000 of specific reserve included in the allowance for loan losses related to TDRs at September 30, 2020. Accruing Nonaccrual Total (In thousands) March 31, 2021: Residential real estate $ 1,407 $ — $ 1,407 Commercial real estate 438 489 927 SBA commercial real estate — 3,296 3,296 Multifamily — 648 648 Commercial business 124 1,545 1,669 Consumer 50 — 50 Total $ 2,019 $ 5,978 $ 7,997 September 30, 2020: Residential real estate $ 2,562 $ 116 $ 2,678 Commercial real estate 449 512 961 SBA commercial real estate — 3,800 3,800 Multifamily — 698 698 Commercial business 2 1,668 1,670 Consumer 56 — 56 Total $ 3,069 $ 6,794 $ 9,863 The following table summarizes information regarding TDRs that were restructured during the three- and six-month periods ended March 31, 2021 and 2020: Number of Pre-Modification Post-Modification Loans Principal Balance Principal Balance (Dollars in thousands) Three Months Ended March 31, 2021: Commercial business 1 $ 126 $ 126 Total 1 $ 126 $ 126 Six Months Ended March 31, 2021: Commercial business 1 $ 126 $ 126 Total 1 $ 126 $ 126 Three Months Ended March 31, 2020: Residential real estate 1 $ 1,099 $ 1,100 SBA commercial real estate 1 3,831 3,832 Total 2 $ 4,930 $ 4,932 Six Months Ended March 31, 2020: Residential real estate 1 $ 1,099 $ 1,100 SBA commercial real estate 1 3,831 3,832 Total 2 $ 4,930 $ 4,932 At March 31, 2021 and September 30, 2020, the Company had committed to lend $1,000 to customers with outstanding loans classified as TDRs. There were principal charge-offs totaling $398,000 recorded as a result of TDRs during the six-month period ended March 31, 2021. There were no principal charge-offs recorded as a result of TDRs during the three-month period ended March 31, 2021, or during the three-and six-month periods ended March 31, 2020. There were no provisions for loan losses related to TDRs for the three-month and six-month periods ended March 31, 2021. Provisions for loan losses related to TDRs were $622,000 for the three-month and six-month periods ended March 31, 2020. In the event that a TDR subsequently defaults, the Company evaluates the restructuring for possible impairment. As a result, the related allowance for loan losses may be increased or charge-offs may be taken to reduce the carrying amount of the loan. During the three and six-month periods ended March 31, 2021 and 2020, the Company did not have any TDRs that were modified within the previous twelve months and for which there was a payment default. On March 22, 2020, the federal banking agencies issued an “Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus”. This guidance encourages financial institutions to work prudently with borrowers that may be unable to meet their contractual obligations because of the effects of COVID-19. The guidance indicates that, in consultation with the Financial Accounting Standards Board (“FASB”), the federal banking agencies concluded that short-term modifications (e.g., six months) made on a good faith basis to borrowers who were current as of the implementation date of a relief program are not TDRs. The Coronavirus Aid, Relief and Economic Security (“CARES”) Act was passed by Congress on March 27, 2020. The CARES Act also addressed COVID-19 related modifications and specified that COVID-19 related modifications on loans that were current as of December 31, 2019 are not TDRs. The Consolidated Appropriations Act of 2021, signed into law on December 27, 2020, further extended the relief from TDR accounting for qualified modifications to the earlier of January 1, 2022 or 60 days after the national emergency concerning COVID-19 terminates. At March 31, 2021, loans totaling $14.0 million remained under the Company’s payment extension program or a loan forbearance agreement, of which $10.0 million related to commercial real estate and commercial business loans, $210,000 related to residential real estate and consumer loans, and $3.8 million related to SBA loan relationships. These payment extensions or loan forbearance agreements are generally for periods of three months or less, but may be extended if the borrower continues to be impacted by the COVID-19 pandemic. SBA Loan Servicing Rights The Company originates loans to commercial customers under the SBA 7(a) program and other programs, and sells the guaranteed portion of the SBA loans with servicing rights retained. Loan servicing rights on originated SBA loans that have been sold are initially recorded at fair value. Capitalized SBA servicing rights are then amortized in proportion to and over the period of estimated net servicing income. Impairment of SBA servicing rights is assessed using the present value of estimated future cash flows. The aggregate fair value of SBA loan servicing rights approximates its carrying value. A valuation model employed by an independent third party calculates the present value of future cash flows and is used to estimate fair value at the date of sale and on a quarterly basis for impairment analysis purposes. Management periodically compares the valuation model inputs and results to published industry data in order to validate the model results and assumptions. Key assumptions used to estimate the fair value of the SBA loan servicing rights include the discount rate and prepayment speed assumptions. For purposes of impairment, risk characteristics such as interest rate, loan type, term and investor type are used to stratify the SBA loan servicing rights. Impairment is recognized through a valuation allowance to the extent that fair value is less than the carrying amount. Changes in the valuation allowance are reported in other noninterest income in the consolidated statements of income. The unpaid principal balance of SBA loans serviced for others was $228.5 million, $209.1 million and $168.4 million at March 31, 2021, September 30, 2020 and March 31, 2020, respectively. Contractually specified late fees and ancillary fees earned on SBA loans were $11,000 and $36,000 for the three and six-month periods ended March 31, 2021, respectively. Contractually specified late fees and ancillary fees earned on SBA loans were $13,000 and $30,000 for the three and six-month periods ended March 31, 2020, respectively. Net servicing income (contractually specified servicing fees offset by direct servicing expenses) related to SBA loans was $512,000 and $979,000 for the three and six-month periods ended March 31, 2021, respectively. Net servicing income (contractually specified servicing fees offset by direct servicing expenses) related to SBA loans was $407,000 and $819,000 for the three and six-month periods ended March 31, 2020, respectively. Net servicing income and costs are included in other noninterest income in the consolidated statements of income. An analysis of SBA loan servicing rights for the three and six-month periods ended March 31,

Deposits

Deposits	6 Months Ended
Deposits	Mar. 31, 2021
Deposits
Deposits	4. Deposits Deposits at March 31, 2021 and September 30, 2020 consisted of the following: March 31, September 30, 2021 2020 (In thousands) Noninterest-bearing demand deposits $ 284,742 $ 242,673 NOW accounts 259,897 218,581 Money market accounts 170,467 143,867 Savings accounts 159,251 142,609 Retail time deposits 144,133 168,276 Brokered and reciprocal time deposits 77,006 132,070 Total $ 1,095,496 $ 1,048,076

Supplemental Disclosure for Net

Supplemental Disclosure for Net Income Per Share	6 Months Ended
Supplemental Disclosure for Net Income Per Share	Mar. 31, 2021
Supplemental Disclosure for Net Income Per Share
Supplemental Disclosure for Net Income Per Share	5. Supplemental Disclosure for Net Income Per Share Net income per share information is presented below for the three and six-month periods ended March 31, 2021 and 2020. Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (Dollars in thousands, except per share data) Basic: Earnings: Net income (loss) attributable to First Savings Financial Group, Inc. $ 10,487 $ (627) $ 20,410 $ 2,812 Shares: Weighted average common shares outstanding, basic 2,369,642 2,355,750 2,368,338 2,348,145 Net income (loss) per common share, basic $ 4.43 $ (0.27) $ 8.62 $ 1.20 Diluted: Earnings: Net income (loss) attributable to First Savings Financial Group, Inc. $ 10,487 $ (627) $ 20,410 $ 2,812 Shares: Weighted average common shares outstanding, basic 2,369,642 2,355,750 2,368,338 2,348,145 Add: Dilutive effect of outstanding options 16,363 21,440 15,264 29,220 Add: Dilutive effect of restricted stock 2,058 2,711 2,773 3,991 Weighted average common shares outstanding, as adjusted 2,388,063 2,379,901 2,386,375 2,381,356 Net income (loss) per common share, diluted $ 4.39 $ (0.26) $ 8.55 $ 1.18 Nonvested restricted stock shares are not considered as outstanding for purposes of computing weighted average common shares outstanding. Stock options for 24,313 and 26,713 shares of common stock were excluded from the calculation of diluted net income per common share for the three and six-month periods ended March 31, 2021, respectively, because their effect was antidilutive. Stock options for 22,158 and 19,158 shares of common stock were excluded from the calculation of diluted net income per common share for the three and six-month periods ended March 31, 2020, respectively, because their effect was antidilutive. There were no antidilutive restricted stock awards excluded from the calculation of diluted net income per share for the three and six-month periods ended March 31, 2021 and 2020.

Supplemental Disclosures of Cas

Supplemental Disclosures of Cash Flow Information	6 Months Ended
Supplemental Disclosures of Cash Flow Information	Mar. 31, 2021
Supplemental Disclosures of Cash Flow Information
Supplemental Disclosures of Cash Flow Information	6. Supplemental Disclosures of Cash Flow Information Six Months Ended March 31, 2021 2020 (In thousands) Cash payments for: Interest $ 4,170 $ 5,820 Income taxes (net of refunds received) 8,659 1,195 Noncash investing and financing activities: Transfers from loans to other real estate owned 370 — Noncash exercise of stock options 48 249

Fair Value Measurements and Dis

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments	6 Months Ended
	Mar. 31, 2021
Fair Value Measurements and Disclosures about Fair Value of Financial Instruments
Fair Value Measurements and Disclosures about Fair Value of Financial Instruments	7. Fair Value Measurements and Disclosures about Fair Value of Financial Instruments FASB Accounting Standards Codification (“ASC”) Topic 820 , Fair Value Measurements, Level 1: Inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets. A quoted market price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available. Level 2: Inputs to the valuation methodology include quoted market prices for similar assets or liabilities in active markets; quoted market prices for identical or similar assets or liabilities in markets that are not active; or inputs that are derived principally from or can be corroborated by observable market data by correlation or other means. Level 3: Inputs to the valuation methodology are unobservable and significant to the fair value measurement. Level 3 assets and liabilities include financial instruments whose value is determined using discounted cash flow methodologies, as well as instruments for which the determination of fair value requires significant management judgment or estimation. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. These valuation methodologies were applied to all of the Company’s financial assets and liabilities carried at fair value or the lower of cost or fair value. The tables below present the balances of financial assets and liabilities measured at fair value on a recurring and nonrecurring basis as of March 31, 2021 and September 30, 2020. Carrying Value Level 1 Level 2 Level 3 Total (In thousands) March 31, 2021: Assets Measured – Recurring Basis: Securities available for sale: U.S. agency bonds and notes $ — $ 500 $ — $ 500 Agency mortgage-backed — 9,649 — 9,649 Agency CMO — 9,145 — 9,145 Privately-issued CMO — 858 — 858 Privately-issued ABS — 860 — 860 SBA certificates — 2,333 — 2,333 Municipal — 182,029 — 182,029 Total securities available for sale $ — $ 205,374 $ — $ 205,374 Residential mortgage loans held for sale – fair value option elected $ — $ 147,248 $ — $ 147,248 Derivative assets (included in other assets) $ — $ 5,662 $ 262 $ 5,924 Equity securities (included in other assets) $ 104 $ — $ — $ 104 Residential mortgage servicing rights $ — $ — $ 45,245 $ 45,245 Liabilities Measured – Recurring Basis: Derivative liabilities (included in other liabilities) $ — $ 72 $ — $ 72 Assets Measured – Nonrecurring Basis: Impaired loans: Residential real estate $ — $ — $ 3,636 $ 3,636 Commercial real estate — — 1,088 1,088 SBA commercial real estate — — 4,885 4,885 Multifamily — — 648 648 Land and land development — — 4 4 Commercial business — — 1,701 1,701 SBA commercial business — — 727 727 Consumer — — 162 162 Total impaired loans $ — $ — $ 12,851 $ 12,851 Residential mortgage loans held for sale – fair value option not elected $ — $ 43,189 $ — $ 43,189 SBA loans held for sale $ — $ — $ 16,704 $ 16,704 SBA loan servicing rights $ — $ — $ 4,122 $ 4,122 Other real estate owned, held for sale: SBA commercial real estate $ — $ — $ 315 $ 315 Former bank premises — — 1,728 1,728 Total other real estate owned $ — $ — $ 2,043 $ 2,043 Carrying Value Level 1 Level 2 Level 3 Total (In thousands) September 30, 2020: Assets Measured – Recurring Basis Securities available for sale: Agency mortgage-backed $ — $ 7,952 $ — $ 7,952 Agency CMO — 9,805 — 9,805 Privately-issued CMO — 958 — 958 Privately-issued ABS — 960 — 960 SBA certificates — 694 — 694 Municipal bonds — 181,596 — 181,596 Total securities available for sale $ — $ 201,965 $ — $ 201,965 Residential mortgage loans held for sale – fair value option elected $ — $ 208,493 $ — $ 208,493 Derivative assets (included in other assets) $ — $ 226 $ 14,937 $ 15,163 Equity securities (included in other assets) $ 66 $ — $ — $ 66 Residential mortgage servicing rights $ — $ — $ 21,703 $ 21,703 Liabilities Measured – Recurring Basis Derivative liabilities (included in other liabilities) $ — $ 1,827 $ — $ 1,827 Assets Measured – Nonrecurring Basis Impaired loans: Residential real estate $ — $ — $ 5,329 $ 5,329 Commercial real estate — — 1,134 1,134 SBA commercial real estate — — 5,561 5,561 Multifamily — — 698 698 Land and land development — — 2 2 Commercial business — — 1,670 1,670 SBA commercial business — — 648 648 Consumer — — 199 199 Total impaired loans $ — $ — $ 15,241 $ 15,241 Residential mortgage loans held for sale – fair value option not elected $ — $ 54,913 $ — $ 54,913 SBA loans held for sale $ — $ 22,119 $ — $ 22,119 SBA loan servicing rights $ — $ — $ 3,748 $ 3,748 Other real estate owned, held for sale: Former bank premises $ — $ — $ 1,728 $ 1,728 Total other real estate owned $ — $ — $ 1,728 $ 1,728 Fair value is based upon quoted market prices where available. If quoted market prices are not available, fair value is based on internally developed models or obtained from third parties that primarily use, as inputs, observable market-based parameters or a matrix pricing model that employs the Bond Market Association’s standard calculations for cash flow and price/yield analysis and observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value, or at the lower of cost or fair value. These adjustments may include unobservable parameters. Any such valuation adjustments have been applied consistently over time. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Other than SBA loans held for sale (see discussion below), there have been no changes in the valuation techniques and related inputs used for assets measured at fair value on a recurring and nonrecurring basis during the six-month period ended March 31, 2021. Securities Available for Sale and Equity Securities. Residential Mortgage Loans Held for Sale SBA Loans Held for Sale Derivative Financial Instruments The fair value of interest rate lock commitments is also obtained from an independent third party and is based on investor prices for the underlying loans or current secondary market prices for loans with similar characteristics, less estimated costs to originate the loans and adjusted for the anticipated funding probability (pull-through rate). The fair value of interest rate lock commitments is classified as Level 3 in the fair value hierarchy. The table below presents a reconciliation of derivative assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six-month periods ended March 31, 2021 and 2020: Three Months Ended Six Months Ended March 31, March 31, (In thousands) 2021 2020 2021 2020 Beginning balance $ 11,415 $ 2,921 $ 14,937 $ 3,269 Unrealized gains/(losses) recognized in earnings, net of settlements (11,153) 2,757 (14,675) 2,409 Ending balance $ 262 $ 5,678 $ 262 $ 5,678 The realized and unrealized gains/(losses) recognized in earnings in the table above are included in mortgage banking income on the accompanying consolidated statements of income. Net gains recognized in earnings for the six-month periods ended March 31, 2021 and 2020 attributable to Level 3 derivative assets held at the balance sheet date were $262,000 and $5.7 million, respectively. The table below presents information about significant unobservable inputs (Level 3) used in the valuation of derivative financial instruments measured at fair value on a recurring basis as of March 31, 2021 and September 30, 2020. Range of Inputs Range of Inputs (Weighted Average) (Weighted Average) Significant March 31, September 30, Financial Instrument Unobservable Inputs 2021 2020 Interest rate lock commitments Pull-through rate 57% - 100% (87%) 0% - 100% (80%) Direct costs to close 0.34% - 1.55% (0.78%) 0.31% - 1.01% (0.52%) Mortgage Servicing Rights . Impaired Loans Impaired loans are measured at the present value of estimated future cash flows using the loan’s effective interest rate or the fair value of the collateral if the loan is a collateral-dependent loan. At March 31, 2021 and September 30, 2020, all impaired loans were considered to be collateral dependent for the purpose of determining fair value. Collateral may be real estate and/or business assets, including equipment, inventory and/or accounts receivable, and its fair value is generally determined based on real estate appraisals or other independent evaluations by qualified professionals. The appraisals are generally then discounted by management in order to reflect management’s estimate of the fair value of the collateral given the current market conditions and the condition of the collateral. At March 31, 2021 and September 30, 2020, the significant unobservable inputs used in the fair value measurement of impaired loans included discounts from appraised value ranging from 0.0% to 100.0% and 0.0% to 75.0%, respectively, and estimated costs to sell the collateral ranging from 0.0% to 6.0% and 0.0% to 12.0%, respectively. During the three and six-month periods ended March 31, 2021, the Company recognized provisions for loan losses on impaired loans of $267,000. During the three and six-month periods ended March 31, 2020, the Company recognized provisions for loan losses of $1.8 million and $1.9 million, respectively, for impaired loans. SBA Loan Servicing Rights Other Real Estate Owned Other real estate owned is reported at fair value, less estimated costs to dispose of the property. The fair values are determined by real estate appraisals, which are then generally discounted by management in order to reflect management’s estimate of the fair value of the property given current market conditions and the condition of the property. At March 31, 2021, the significant unobservable inputs used in the fair value measurement of other real estate owned included a discount from appraised value (including estimated costs to sell the property) ranging from 10.9% to 30.9% with a weighted average of 28.4%. At September 30, 2020, the significant unobservable inputs used in the fair value measurement of other real estate owned included a discount from appraised value (including estimated costs to sell the property) of 30.9%. The Company did not recognize any charges to write down other real estate owned to fair value for the three and six-month periods ended March 31, 2021 and 2020. As previously discussed, management used different valuation methodologies related to SBA loans held for sale at March 31, 2021 and September 30, 2020, resulting in a change in classification from Level 2 to Level 3 for those types of instruments. Other than that change, there were no transfers into or out of the Company’s Level 3 financial assets of the fair value hierarchy for the three and six-month periods ended March 31, 2021. Financial Instruments Recorded Using Fair Value Option. The Company has elected the fair value option for substantially all of its residential mortgage loans held for sale effective July 1, 2018, excluding participation interests acquired from correspondent lenders. These loans are intended for sale and the Company believes that the fair value is the best indicator of the resolution of these loans. Interest income is recorded based on the contractual terms of the loans and in accordance with the Company’s policy on loans held for investment. None of these loans were 90 days or more past due, nor were any on nonaccrual status, as of March 31, 2021 and September 30, 2020. The table below presents the difference between the aggregate fair value and the aggregate remaining principal balance for residential mortgage loans held for sale for which the fair value option had been elected as of March 31, 2021 and September 30, 2020. Aggregate Aggregate Principal Fair Value Balance March 31, March 31, (In thousands) 2021 2020 Difference Residential mortgage loans held for sale $ 147,248 $ 144,877 $ 2,371 Aggregate Aggregate Principal Fair Value Balance September 30, September 30, (In thousands) 2021 2020 Difference Residential mortgage loans held for sale $ 208,493 $ 198,138 $ 10,355 The table below presents gains and losses and interest included in earnings related to financial assets measured at fair value under the fair value option for the three and six-month periods ended March 31, 2021 and 2020: Three Months Ended Six Months Ended March 31, March 31, (In thousands) 2021 2020 2021 2020 Gains (losses) – included in mortgage banking income $ (8,417) $ 980 $ 191 $ 3,356 Interest income 1,431 917 3,264 1,596 $ (6,986) $ 1,897 $ 3,455 $ 4,952 GAAP requires disclosure of fair value information about financial instruments for interim reporting periods, whether or not recognized in the consolidated balance sheet. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instruments. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company. The carrying amounts and estimated fair values of the Company’s financial instruments are as follows. Fair Value Measurements Carrying Using: Amount Level 1 Level 2 Level 3 (In thousands) March 31, 2021: Financial assets: Cash and due from banks $ 13,040 $ 13,040 $ — $ — Interest-bearing deposits with banks 17,797 17,797 — — Interest-bearing time deposits 2,474 — 2,474 — Securities available for sale 205,374 — 205,374 — Securities held to maturity 1,957 — 2,219 — Residential mortgage loans held for sale 190,437 — 190,437 — SBA loans held for sale 16,704 — — 18,917 Loans, net 1,128,348 — — 1,174,491 FRB and FHLB stock 19,258 N/A N/A N/A Accrued interest receivable 6,877 — 6,877 — SBA loan servicing rights 4,122 — — 4,310 Residential mortgage loan servicing rights 45,245 — — 45,245 Derivative assets (included in other assets) 5,924 — 5,662 262 Equity securities (included in other assets) 104 104 — — Financial liabilities: Deposits 1,095,496 — — 1,096,481 Borrowings from FHLB 289,237 — 291,110 — Federal Reserve PPPLF borrowings 128,494 — 128,475 — Subordinated note 19,831 — 23,638 — Accrued interest payable 866 — 866 — Advance payments by borrowers for taxes and insurance 1,488 — 1,488 — Derivative liabilities (included in other liabilities) 72 — 72 — Fair Value Measurements Carrying Using: Amount Level 1 Level 2 Level 3 (In thousands) September 30, 2020: Financial assets: Cash and due from banks $ 12,807 $ 12,807 $ — $ — Interest-bearing deposits with banks 20,919 20,919 — — Interest-bearing time deposits 2,964 — 2,964 — Securities available for sale 201,965 — 201,965 — Securities held to maturity 2,102 — 2,385 — Residential mortgage loans held for sale 263,406 — 263,519 — SBA loans held for sale 22,119 — 24,666 — Loans, net 1,090,063 — — 1,152,962 FRB and FHLB stock 17,293 N/A N/A N/A Accrued interest receivable 6,462 — 6,462 — SBA loan servicing rights 3,748 — — 3,934 Residential mortgage loan servicing rights 21,703 — — 21,703 Derivative assets (included in other assets) 15,163 — 226 14,937 Equity securities (included in other assets) 66 66 — — Financial liabilities: Deposits 1,048,076 — — 1,050,569 Borrowings from FHLB 310,858 — 310,766 — Subordinated note 19,797 — 23,788 — Federal Reserve PPPLF borrowings 174,834 — 174,808 — Accrued interest payable 683 — 683 — Advance payments by borrowers for taxes and insurance 2,615 — 2,615 — Derivative liabilities (included in other liabilities) 1,827 — 1,827 — The methods and assumptions used to estimate fair value are described as follows: Carrying amount is the estimated fair value for cash and cash equivalents, interest-bearing time deposits, accrued interest receivable and payable, advance payments by borrowers for taxes and insurance, demand deposits and other transaction accounts. The fair value of loans (excluding loans held for sale), fixed-maturity certificates of deposit, and borrowed funds is based on discounted cash flows using current market rates applied to the estimated life and credit risk of the instrument. It is not practicable to determine the fair value of FHLB and other restricted stock due to restrictions placed on its transferability. The methods and assumptions used to estimate the fair value of investment securities, loans held for sale, loan servicing rights, and derivative assets and liabilities are discussed previously in Note 7. The methods utilized to measure the fair value of financial instruments at March 31, 2021 and September 30, 2020 represent an approximation of exit price, but an actual exit price may differ.

Employee Stock Ownership Plan

Employee Stock Ownership Plan	6 Months Ended
Employee Stock Ownership Plan	Mar. 31, 2021
Employee Stock Ownership Plan
Employee Stock Ownership Plan	8. Employee Stock Ownership Plan On October 6, 2008, the Company established a leveraged employee stock ownership plan (“ESOP”) covering substantially all employees. The ESOP trust acquired 203,363 shares of Company common stock at a cost of $10.00 per share financed by a term loan with the Company. The employer loan and the related interest income are not recognized in the consolidated financial statements because the debt is serviced from Company contributions. Dividends payable on allocated shares are charged to retained earnings and are satisfied by the allocation of cash dividends to participant accounts or by utilizing the dividends as additional debt service on the ESOP loan. Dividends payable on unallocated shares are not considered dividends for financial reporting purposes. Shares held by the ESOP trust are allocated to participant accounts based on the ratio of the current year principal and interest payments to the total of the current year and future years’ principal and interest to be paid on the employer loan. Compensation expense is recognized based on the average fair value of shares released for allocation to participant accounts during the year with a corresponding credit to stockholders’ equity. The ESOP loan was repaid in full during the quarter ended December 31, 2015 and all shares have been allocated to participants in the plan; therefore, no compensation expense was recognized for the three or six-month periods ended March 31, 2021 and 2020. The ESOP trust held 117,914 and 119,654 shares of Company common stock at March 31, 2021 and September 30, 2020, respectively.

Stock Based Compensation Plans

Stock Based Compensation Plans	6 Months Ended
Stock Based Compensation Plans	Mar. 31, 2021
Stock Based Compensation Plans
Stock Based Compensation Plans	9. Stock Based Compensation Plans The Company maintains two equity incentive plans under which stock options and restricted stock have been or may be granted, the 2010 Equity Incentive Plan (“2010 Plan”), approved by the Company’s shareholders in February 2010, and the 2016 Equity Incentive Plan (“2016 Plan”), approved by the Company’s shareholders in February 2016. The aggregate number of shares of the Company’s common stock available for issuance under the 2016 Plan may not exceed 88,000 shares, consisting of 66,000 stock options and 22,000 shares of restricted stock. At March 31, 2021, there were no remaining shares of the Company’s common stock available for issuance under the 2010 Plan. At March 31, 2021, 500 shares of the Company’s common stock were available for issuance under the 2016 Plan, of which 200 shares were available for restricted stock and 300 shares were available for stock options. The Company generally issues new shares under the 2016 Plan from its authorized but unissued shares. The Company accounts for any forfeitures as they occur, and any previously recognized compensation cost for an award is reversed in the period the award is forfeited. Stock Options Under the plans, the Company may grant both non-statutory and incentive stock options that may not have a term exceeding ten years. In the case of incentive stock options, the aggregate fair value (determined at the time the incentive stock options are granted) which are first exercisable during any calendar year shall not exceed $100,000. Exercise prices generally may not be less than the fair market value of the underlying stock at the date of the grant. The terms of the plans also include provisions whereby all unearned options and restricted shares become immediately exercisable and fully vested upon a change in control. Stock options granted generally vest ratably over five years and are exercisable in whole or in part for a period up to ten years from the date of the grant. Compensation expense is measured based on the fair market value of the options at the grant date and is recognized ratably over the period during which the shares are earned (the vesting period). The fair market value of stock options granted is estimated at the date of grant using a binomial option pricing model. Expected volatilities are based on historical volatility of the Company’s stock. The expected term of options granted represents the period of time that options are expected to be outstanding. The risk free rate for the expected life of the options is based on the U.S. Treasury yield curve in effect at the grant date. The fair value of options granted during the six-month period ended March 31, 2021 was determined using the following assumptions: Expected dividend yield 1.75 % Risk-free interest rate 2.13 % Expected volatility 14.6 % Expected life of options 7.5 years Weighted average fair value at grant date $ 6.13 A summary of stock option activity as of March 31, 2021, and changes during the six-month period then ended is presented below. Weighted Average Remaining Weighted Contractual Aggregate Number of Average Term Intrinsic Shares Exercise Price (Years) Value (Dollars in thousands, except per share data) Outstanding at beginning of period 68,403 $ 48.11 Granted 7,555 63.30 Exercised (1,300) 40.09 Forfeited or expired (600) 40.09 Outstanding at end of period 74,058 $ 49.86 6.7 $ 1,260 Vested and expected to vest 74,058 $ 49.86 6.7 $ 1,260 Exercisable at end of period 42,108 $ 44.04 6.0 $ 976 The intrinsic value of stock options exercised during the six-month periods ended March 31, 2021 and 2020 was $31,000 and $1.4 million,respectively. The Company recognized compensation expense related to stock options of $23,000 and $46,000 for the three and six-month periods ended March 31, 2021, respectively. The Company recognized compensation expense related to stock options of $22,000 and $42,000 for the three and six-month periods ended March 31, 2020, respectively. At March 31, 2021, there was $158,000 of unrecognized compensation expense related to nonvested stock options. The compensation expense is expected to be recognized over a weighted average period of 2.99 years. Cash received from the exercise of stock options and the tax benefit from the exercise of stock options totaled $4,000 and $5,000, respectively, for the six-month period ended March 31, 2021. Cash received from the exercise of stock options and the tax benefit from the exercise of stock options were $148,000 and $134,000, respectively, for the six-month period ended March 31, 2020. Restricted Stock The vesting period of restricted stock granted under the plans is generally five years beginning one year after the date of grant of the awards. Compensation expense is measured based on the fair market value of the restricted stock at the grant date and is recognized ratably over the vesting period. Compensation expense related to restricted stock recognized for the three and six-month periods ended March 31, 2021 was $47,000 and $95,000, respectively. Compensation expense related to restricted stock recognized for the three and six-month periods ended March 31, 2020 was $49,000 and $96,000, respectively. A summary of the Company’s nonvested restricted shares activity as of March 31, 2021 and changes during the six-month period then ended is presented below. Weighted Number Average of Grant Date Shares Fair Value Nonvested at October 1, 2020 10,808 $ 48.04 Granted — $ — Vested (4,375) $ 44.77 Forfeited (200) $ 40.09 Nonvested at March 31, 2021 6,233 $ 50.59 There were 4,375 restricted shares vested during the six-month period ended March 31, 2021 with a total fair value of $277,000. There were 4,086 restricted shares that vested during the six-month period ended March 31, 2020 with a total fair value of $271,000. At March 31, 2021, there was $245,000 of unrecognized compensation expense related to nonvested restricted shares. The compensation expense is expected to be recognized over a weighted average period of 2.19 years.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
Derivative Financial Instruments	Mar. 31, 2021
Derivative Financial Instruments
Derivative Financial Instruments	10. Derivative Financial Instruments The Company enters into commitments to originate loans whereby the interest rate on the loan is determined prior to funding (i.e., rate lock commitment). The Company also enters into forward mortgage loan commitments to sell loans to various investors to protect itself against exposure to various factors and to reduce sensitivity to interest rate movements. Both the interest rate lock commitments and the related forward mortgage loan sales contracts are considered derivatives and are recorded on the accompanying consolidated balance sheets at fair value in accordance with FASB ASC 815, Derivatives and Hedging Certain financial instruments, including derivatives, may be eligible for offset in the balance sheet when the “right of setoff” exists or when the instruments are subject to an enforceable master netting agreement, which includes the right of the non-defaulting party or non-affected party to offset recognized amounts, including collateral posted with the counterparty, to determine a net receivable or net payable upon early termination of the agreement. Certain of the Company’s derivative instruments are subject to master netting agreements. However, the Company has not elected to offset such financial instruments in the consolidated balance sheets. The Company may be required to post margin collateral to derivative counterparties based on agreements with the dealers. At March 31, 2021 and September 30, 2020, the Company had cash collateral posted with certain derivative counterparties of $1.7 million and $3.0 million, respectively, against its derivative obligations. Cash collateral related to derivative contracts is recorded in interest-bearing deposits with banks or other assets in the consolidated balance sheets. The tables below provide information on the Company’s derivative financial instruments as of March 31, 2021 and September 30, 2020. Notional Asset Liability Amount Derivatives Derivatives March 31, March 31, March 31, (In thousands) 2021 2021 2021 Interest rate lock commitments $ 501,695 $ 262 $ — Forward mortgage loan sale contracts 457,100 5,662 72 $ 958,795 $ 5,924 $ 72 Notional Asset Liability Amount Derivatives Derivatives September 30, September 30, September 30, (In thousands) 2020 2020 2020 Interest rate lock commitments $ 793,671 $ 14,937 $ — Forward mortgage loan sale contracts 605,750 226 1,827 $ 1,399,421 $ 15,163 $ 1,827 Income (loss) related to derivative financial instruments included in mortgage banking income in the accompanying consolidated statements of income for the three and six-month periods ended March 31, 2021 and 2020 is as follows: Three Months Ended Six Months Ended March 31, March 31, (In thousands) 2021 2020 2021 2020 Interest rate lock commitments $ (11,153) $ 2,757 $ (14,675) $ 2,409 Forward mortgage loan sale contracts 18,977 (10,380) 11,614 (10,817) $ 7,824 $ (7,623) $ (3,061) $ (8,408)

Regulatory Capital

Regulatory Capital	6 Months Ended
Regulatory Capital	Mar. 31, 2021
Regulatory Capital
Regulatory Capital	11. Regulatory Capital The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the table below) of total, Tier 1 and common equity Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined), and Tier 1 capital (as defined) to average assets (as defined). The final rules implementing the Basel Committee on Banking Supervision’s capital guidelines for U.S. banks (“Basel III rules”) became effective for the Bank on January 1, 2015, with full compliance with all of the requirements being phased in over a multi-year schedule through 2019. Under the Basel III rules, the Bank must hold a conservation buffer above the adequately capitalized risk-based capital ratios disclosed in the table below. The capital conservation buffer was phased in from 0.0% for 2015 to 2.5% by 2019. The capital conservation buffer was 2.50%for 2021 and 2020. The Bank met all capital adequacy requirements to which it was subject as of March 31, 2021 and September 30, 2020. As of March 31, 2021, the most recent notification from the Federal Reserve Bank categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based, Tier 1 risk-based, common equity Tier 1 risk-based and Tier 1 leverage ratios as set forth in the table below. There are no conditions or events since that notification that management believes have changed the Bank’s category. The Company’s and Bank’s actual capital amounts and ratios are also presented in the table. The Company is not subject to the Federal Reserve Bank’s consolidated capital requirements because it has less than $3 billion in total consolidated assets. However, management has elected to disclose the Company’s capital amounts and ratios in addition to the Bank’s required disclosures in the table below. No amount was deducted from capital for interest-rate risk at either date. Minimum To Be Well Minimum Capitalized Under For Capital Prompt Corrective Actual Adequacy Purposes: Action Provisions: Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) As of March 31, 2021: Total capital (to risk-weighted assets): Consolidated $ 188,352 13.82 % $ 108,998 8.00 % N/A N/A Bank 180,839 13.30 108,794 8.00 $ 135,993 10.00 % Tier 1 capital (to risk-weighted assets): Consolidated $ 151,517 11.12 % $ 81,748 6.00 % N/A N/A Bank 163,835 12.05 81,596 6.00 $ 108,794 8.00 % Common equity tier 1 capital (to risk-weighted assets): Consolidated $ 151,517 11.12 % $ 61,311 4.50 % N/A N/A Bank 163,835 12.05 61,197 4.50 $ 88,395 6.50 % Tier 1 capital (to average adjusted total assets): Consolidated $ 151,517 9.36 % $ 64,719 4.00 % N/A N/A Bank 163,835 10.22 64,103 4.00 $ 80,129 5.00 % As of September 30, 2020: Total capital (to risk-weighted assets): Consolidated $ 168,617 13.37 % $ 100,929 8.00 % N/A N/A Bank 160,452 12.75 100,672 8.00 $ 125,840 10.00 % Tier 1 capital (to risk-weighted assets): Consolidated $ 133,520 10.58 % $ 75,697 6.00 % N/A N/A Bank 145,152 11.53 75,504 6.00 $ 100,672 8.00 % Common equity tier 1 capital (to risk-weighted assets): Consolidated $ 133,520 10.58 % $ 56,773 4.50 % N/A N/A Bank 145,152 11.53 56,428 4.50 $ 81,796 6.50 % Tier 1 capital (to average adjusted total assets): Consolidated $ 133,520 8.53 % $ 62,617 4.00 % N/A N/A Bank 145,152 9.37 61,966 4.00 $ 77,458 5.00 %

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
Recent Accounting Pronouncements	Mar. 31, 2021
Recent Accounting Pronouncements
Recent Accounting Pronouncements	12. Recent Accounting Pronouncements The following are summaries of recently issued or adopted accounting pronouncements that impact the accounting and reporting practices of the Company: In June 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments – Credit Losses (Topic 326) In November 2019, the FASB issued ASU No. 2019-10 which delayed the effective date of ASU 2016-13 for smaller reporting companies (as defined by the SEC) and other non-SEC reporting entities to fiscal years beginning after December 15, 2022, including interim periods within those fiscal periods. Early adoption is permitted as of fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is a smaller reporting company as defined by the SEC, and currently does not intend to early adopt CECL. In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement The Company has determined that all other recently issued accounting pronouncements will not have a material impact on the Company’s consolidated financial statements or do not apply to its operations.

Segment Reporting

Segment Reporting	6 Months Ended
Segment Reporting	Mar. 31, 2021
Segment Reporting
Segment Reporting	13. Segment Reporting The Company’s operations include three primary segments: core banking, SBA lending, and mortgage banking. The core banking segment originates residential, commercial and consumer loans and attracts deposits from its customer base. Net interest income from loans and investments that are funded by deposits and borrowings is the primary revenue for the core banking segment. The SBA lending segment originates loans guaranteed by the SBA, subsequently selling the guaranteed portion to outside investors. Net gains on sales of loans and net interest income are the primary sources of revenue for the SBA lending segment. The mortgage banking segment originates residential mortgage loans and sells them in the secondary market. Net gains on the sales of loans, income from derivative financial instruments and net interest income are the primary sources of revenue for the mortgage banking segment. The core banking segment is comprised primarily by the Bank and First Savings Investments, Inc., while the SBA lending segment’s revenues are comprised primarily of net interest income and gains on the sales of SBA loans generated by Q2. The mortgage banking segment operates as a separate division of the Bank. The following segment financial information has been derived from the internal financial statements of the Company which are used by management to monitor and manage financial performance. The accounting policies of the three segments are the same as those of the Company. The amounts reflected in the “Other” column in the tables below represent combined balances of the Company and the Captive, and are the primary differences between the sum of the segment amounts and consolidated totals, along with amounts to eliminate transactions between segments. Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Three Months Ended March 31, 2021: Net interest income (loss) $ 11,422 $ 3,227 $ 439 $ (308) $ 14,780 Provision for loan losses 106 181 — — 287 Net interest income (loss) after provision 11,316 3,046 439 (308) 14,493 Net gains on sales of loans, SBA — 3,239 — — 3,239 Mortgage banking income 2 — 32,396 — 32,398 Noninterest income 1,490 3,407 34,076 — 38,973 Noninterest expense (income) 9,224 2,449 27,844 (233) 39,284 Income (loss) before taxes 3,582 4,004 6,671 (75) 14,182 Income tax expense (benefit) 633 1,005 2,183 (126) 3,695 Segment profit 2,949 2,999 4,488 51 10,487 Non cash items: Depreciation and amortization 493 12 62 17 584 Segment assets at March 31, 2021 1,489,670 257,566 246,144 (242,771) 1,750,609 Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Six Months Ended March 31, 2021: Net interest income (loss) $ 22,587 $ 5,374 $ 1,170 $ (612) $ 28,519 Provision for loan losses 808 147 — — 955 Net interest income (loss) after provision 21,779 5,227 1,170 (612) 27,564 Net gains on sales of loans, SBA — 4,506 — — 4,506 Mortgage banking income — — 74,698 — 74,698 Noninterest income 3,042 4,792 77,322 — 85,156 Noninterest expense (income) 17,510 5,195 61,388 (407) 83,686 Income (loss) before taxes 7,311 4,824 17,104 (205) 29,034 Income tax expense (benefit) 1,322 1,110 6,035 (245) 8,222 Segment profit 5,989 3,714 11,069 40 20,812 Non cash items: Depreciation and amortization 954 23 121 34 1,132 Segment assets at March 31, 2021 1,489,670 257,566 246,144 (242,771) 1,750,609 Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Three Months Ended March 31, 2020: Net interest income (loss) $ 9,335 $ 1,151 $ 585 $ (300) $ 10,771 Provision for loan losses 216 1,489 — — 1,705 Net interest income (loss) after provision 9,119 (338) 585 (300) 9,066 Net gains on sales of loans, SBA — 1,229 — — 1,229 Mortgage banking income 3 — 8,408 — 8,411 Noninterest income 1,411 1,209 8,513 — 11,133 Noninterest expense (income) 6,809 1,841 13,514 (89) 22,075 Income (loss) before taxes 3,721 (970) (4,416) (211) (1,876) Income tax expense (benefit) 801 (124) (1,241) (210) (774) Segment profit (loss) 2,920 (846) (3,175) (1) (1,102) Non cash items: Depreciation and amortization 279 14 42 17 352 Segment assets at March 31, 2020 1,197,685 106,296 161,134 (96,863) 1,368,252 Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Six Months Ended March 31, 2020: Net interest income (loss) $ 18,644 $ 2,368 $ 1,142 $ (597) $ 21,557 Provision for loan losses 736 1,474 — — 2,210 Net interest income (loss) after provision 17,908 894 1,142 (597) 19,347 Net gains on sales of loans, SBA — 1,990 — — 1,990 Mortgage banking income 4 — 24,330 — 24,334 Noninterest income 2,802 2,138 24,425 — 29,365 Noninterest expense (income) 14,002 3,666 28,852 (173) 46,347 Income (loss) before taxes 6,708 (634) (3,285) (424) 2,365 Income tax expense (benefit) 1,317 (81) (976) (396) (136) Segment profit (loss) 5,391 (553) (2,309) (28) 2,501 Non cash items: Depreciation and amortization 621 27 79 34 761 Segment assets at March 31, 2020 1,197,685 106,296 161,134 (96,863) 1,368,252

Revenue from Contracts with Cus

Revenue from Contracts with Customers	6 Months Ended
Revenue from Contracts with Customers	Mar. 31, 2021
Revenue from Contracts with Customers
Revenue from Contracts with Customers	14. Revenue from Contracts with Customers Substantially all of the Company’s revenue from contracts with customers within the scope of FASB ASC 606 is included in the core banking segment and is recognized within noninterest income. The following table presents the Company’s sources of noninterest income for the three and six-month periods ended March 31, 2021 and 2020: Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (In thousand) Service charges on deposit accounts $ 328 $ 441 $ 724 $ 950 ATM and interchange fees 513 524 1,145 1,027 Investment advisory income 365 83 499 110 Other 32 31 55 57 Revenue from contracts with customers 1,238 1,079 2,423 2,144 Gain on sale of securities — 7 — 7 Gain on sale of SBA loans 3,239 1,229 4,506 1,990 Mortgage banking income 32,398 8,411 74,698 24,334 Increase in cash value of life insurance 174 194 360 356 Real estate lease income 149 152 296 303 Loan servicing and other income 1,775 61 2,873 231 Other noninterest income 37,735 10,054 82,733 27,221 Total noninterest income $ 38,973 $ 11,133 $ 85,156 $ 29,365 A description of the Company’s revenue streams accounted for under FASB ASC 606 follows: Service Charges on Deposit Accounts ATM and Interchange Fees Investment Advisory Income Other Income

Leases

Leases	6 Months Ended
Leases	Mar. 31, 2021
Leases
Leases	15. Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. The Company is a lessor in certain leasing agreements, such as for office space, and is a lessee in others, such as for certain office space and equipment. The Company’s operating leases have terms that expire at different dates through August 2028, and some include options to extend the leases in five year increments. On October 1, 2019, the Company adopted FASB ASC 842 and all subsequent updates that modified FASB ASC 842. For the Company, this update primarily affected the accounting treatment for operating lease agreements. With the adoption of FASB ASC 842, operating lease agreements are required to be recognized on the consolidated balance sheet as a “right of use” (“ROU”) asset and a corresponding lease liability. All of the Company’s leases are classified as operating leases, and therefore, were previously not recognized on the Company’s consolidated balance sheet. The Company’s right to use an asset over the life of a lease is recorded as an ROU asset included in other assets other liabilities The calculated amount of the ROU assets and lease liabilities are impacted by the length of the lease term and the discount rate used to calculate the present value of minimum lease payments. Regarding the discount rate, FASB ASC 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. For operating leases existing prior to October 1, 2019, the rate for the remaining lease term as of October 1, 2019 was used. Leases with an initial term of 12 months or less are not recorded on the balance sheet and the Company recognizes lease expense for these leases on a straight-line basis over the term of the lease. Certain leases include one or more options to renew, with renewal terms that can extend the lease term from one Lease expense for the three and six–month periods ended March 31, 2021 was $495,000 and $1.0 million, respectively. Lease expense for the three and six-month periods ended March 31, 2020 was $490,000 and $900,000 respectively. The components of lease expense for the three and six-month periods ended March 31, 2021 and 2020 were as follows: Three Months Ended Six Months Ended Three Months Ended Six Months Ended March 31, March 31, March 31, March 31, 2021 2021 2020 2020 Operating lease cost $ 260 $ 634 $ 295 $ 585 Short-term lease cost 235 412 195 315 $ 495 $ 1,046 $ 490 $ 900 Future minimum commitments due under these lease agreements as of March 31, 2021 are as follows, including renewal options that are reasonably certain to be exercised: 2021 (remaining six months) $ 665 2022 1,215 2023 882 2024 790 2025 540 Thereafter 5,479 Total lease payments 9,571 Less imputed interest (1,947) Total $ 7,624 The lease term and discount rate at March 31, 2021 and September 30, 2020 were as follows: March 31, September 30, 2021 2020 Weighted-average remaining lease term (years) 18.7 22.6 Weighted-average discount rate 2.27 % 2.75 % Supplemental cash flow information for the six–month periods ended March 31, 2021 and 2020 related to leases was as follows: 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 710 $ 524 ROU assets obtained in exchange for lease obligations: Operating leases $ 2,037 $ 7,506

Mortgage Banking Income

Mortgage Banking Income	6 Months Ended
Mortgage Banking Income	Mar. 31, 2021
Mortgage Banking Income
Mortgage Banking Income	16. Mortgage Banking Income The components of mortgage banking income for the three and six-month periods ended March 31, 2021 and 2020 were as follows: Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (In thousand) Origination and sale of mortgage loans (1) $ 19,367 $ 14,363 $ 62,103 $ 28,989 Net change in fair value of loans held for sale and interest rate lock commitments (19,570) 3,736 (21,987) 3,272 Realized and unrealized hedging gains (losses) 18,977 (10,380) 11,614 (10,817) Capitalized residential mortgage loan servicing rights 14,611 1,908 27,483 4,185 Net change in fair value of residential mortgage loan servicing rights (876) (1,107) (3,941) (1,064) Provisions for loan repurchases and indemnifications (111) (109) (574) (231) Total mortgage banking income $ 32,398 $ 8,411 $ 74,698 $ 24,334 (1) Includes origination fees and realized gains and losses on the sale of mortgage loans in the secondary market.

Loss Contingency

Loss Contingency	6 Months Ended
Loss Contingency	Mar. 31, 2021
Loss Contingency
Loss Contingency	17. Loss Contingency The Bank received notice of a class action lawsuit on March 23, 2021 regarding its policy and practice of assessing customer fees related to items presented on accounts with insufficient funds (NSF items). The Company has not accrued a loss contingency for this pending litigation at March 31, 2021 because it has not determined that a probable loss will occur and cannot reasonably estimate a potential loss amount.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
Investment Securities (Tables)	Mar. 31, 2021
Investment Securities
Schedule of Amortized Cost and Securities Available For Sale	The amortized cost of securities available for sale and held to maturity and their approximate fair values are as follows: Gross Gross Amortized Unrealized Unrealized Fair Cost Gain Losses Value (In thousands) March 31, 2021: Securities available for sale: U.S. agency bonds and notes $ 500 $ — $ — $ 500 Agency mortgage-backed 9,374 380 105 9,649 Agency CMO 8,965 219 39 9,145 Privately-issued CMO 776 89 7 858 Privately-issued ABS 794 67 1 860 SBA certificates 2,355 4 26 2,333 Municipal bonds 170,986 11,477 434 182,029 Total securities available for sale $ 193,750 $ 12,236 $ 612 $ 205,374 Securities held to maturity: Agency mortgage-backed $ 73 $ 6 $ — $ 79 Municipal bonds 1,884 256 — 2,140 Total securities held to maturity $ 1,957 $ 262 $ — $ 2,219 Gross Gross Amortized Unrealized Unrealized Fair Cost Gain Losses Value (In thousands) September 30, 2020: Securities available for sale: Agency mortgage-backed $ 7,499 $ 453 $ — $ 7,952 Agency CMO 9,398 407 — 9,805 Privately-issued CMO 886 80 8 958 Privately-issued ABS 884 81 5 960 SBA certificates 639 58 3 694 Municipal bonds 168,472 13,180 56 181,596 Total securities available for sale $ 187,778 $ 14,259 $ 72 $ 201,965 Securities held to maturity: Agency mortgage-backed $ 82 $ 7 $ — $ 89 Municipal bonds 2,020 276 — 2,296 Total securities held to maturity $ 2,102 $ 283 $ — $ 2,385
Schedule of Amortized Cost and Fair Value of Investment Securities by Contractual Maturity	The amortized cost and fair value of investment securities as of March 31, 2021 by contractual maturity are shown below. CMO, ABS, SBA certificates, and mortgage-backed securities which do not have a single maturity date are shown separately. Available for Sale Held to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Due within one year $ 8,501 $ 8,588 $ 253 $ 282 Due after one year through five years 27,848 29,071 971 1,095 Due after five years through ten years 30,486 32,508 660 763 Due after ten years 104,651 112,362 — — CMO 9,741 10,003 — — ABS 794 860 — — SBA certificates 2,355 2,333 — — Mortgage-backed securities 9,374 9,649 73 79 $ 193,750 $ 205,374 $ 1,957 $ 2,219
Schedule of Investment Securities With Gross Unrealized Losses	Information pertaining to investment securities with gross unrealized losses at March 31, 2021 and September 30, 2020, aggregated by investment category and the length of time that individual securities have been in a continuous loss position, follows: Number of Gross Investment Fair Unrealized Positions Value Losses (Dollars in thousands) March 31, 2021: Securities available for sale: Continuous loss position less than twelve months: Agency mortgage-backed 1 $ 3,076 $ 105 Agency CMO 2 1,456 39 SBA certificates 1 2,179 25 Municipal bonds 12 10,213 271 Total less than twelve months 16 16,924 440 Continuous loss position more than twelve months: Privately-issued CMO 1 23 7 Privately-issued ABS 1 400 1 SBA certificates 1 115 1 Municipal bonds 1 1,837 163 Total more than twelve months 4 2,375 172 Total securities available for sale 20 $ 19,299 $ 612 September 30, 2020: Securities available for sale: Continuous loss position less than twelve months: Privately-issued ABS 1 $ 446 $ 5 Municipal bonds 2 2,444 56 Total less than twelve months 3 2,890 61 Continuous loss position more than twelve months: Privately-issued CMO 1 26 8 SBA certificates 1 188 3 Total more than twelve months 2 214 11 Total securities available for sale 5 $ 3,104 $ 72

Loans and Allowance for Loan _2

Loans and Allowance for Loan Losses (Tables)	6 Months Ended
Loans and Allowance for Loan Losses (Tables)	Mar. 31, 2021
Loans and Allowance for Loan Losses
Schedule of Loans	Loans at March 31, 2021 and September 30, 2020 consisted of the following: March 31, September 30, 2021 2020 (In thousands) Real estate mortgage: 1-4 family residential $ 205,129 $ 191,781 Commercial 141,122 141,522 Single tenant net lease 372,074 334,636 SBA 57,556 55,508 Multifamily residential 44,434 42,368 Residential construction 5,389 9,361 Commercial construction 9,193 6,941 Land and land development 10,894 9,403 Commercial business 63,392 60,513 SBA commercial business (1) 182,167 206,807 Consumer 55,800 50,576 Total loans 1,147,150 1,109,416 Deferred loan origination fees and costs, net (2) (1,383) (2,327) Allowance for loan losses (17,419) (17,026) Loans, net $ 1,128,348 $ 1,090,063 (1) Includes $159.3 million and $180.6 million of loans originated under the SBA’s Paycheck Protection Program ("PPP") at March 31, 2021 and September 30, 2020, respectively. (2) Includes $2.1 million and $3.2 million of net deferred loan fees related to PPP loans as of March 31, 2021 and September 30, 2020, respectively.
Schedule of Components of Recorded Investment in Loans	The following table provides the components of the recorded investment in loans as of March 31, 2021: Principal Accrued Net Deferred Recorded Loan Interest Loan Origination Investment Balance Receivable Fees and Costs in Loans (In thousands) Residential real estate $ 205,129 $ 638 $ (295) $ 205,472 Commercial real estate 141,122 601 (189) 141,534 Single tenant net lease 372,074 1,242 (173) 373,143 SBA commercial real estate 57,556 528 1,026 59,110 Multifamily 44,434 122 (48) 44,508 Residential construction 5,389 7 (27) 5,369 Commercial construction 9,193 30 (28) 9,195 Land and land development 10,894 26 (10) 10,910 Commercial business 63,392 185 46 63,623 SBA commercial business 182,167 1,495 (1,664) 181,998 Consumer 55,800 160 (21) 55,939 $ 1,147,150 $ 5,034 $ (1,383) $ 1,150,801 Individually Collectively Recorded Evaluated for Evaluated for Investment in Impairment Impairment Loans (In thousands) Recorded Investment in Loans as Evaluated for Impairment: Residential real estate $ 3,663 $ 201,809 $ 205,472 Commercial real estate 1,088 140,446 141,534 Single tenant net lease — 373,143 373,143 SBA commercial real estate 5,386 53,724 59,110 Multifamily 648 43,860 44,508 Residential construction — 5,369 5,369 Commercial construction — 9,195 9,195 Land and land development 4 10,906 10,910 Commercial business 1,706 61,917 63,623 SBA commercial business 768 181,230 181,998 Consumer 162 55,777 55,939 $ 13,425 $ 1,137,376 $ 1,150,801 The following table provides the components of the recorded investment in loans as of September 30, 2020: Principal Accrued Net Deferred Recorded Loan Interest Loan Origination Investment Balance Receivable Fees and Costs in Loans (In thousands) Residential real estate $ 191,781 $ 644 $ (156) $ 192,269 Commercial real estate 141,522 812 (197) 142,137 Single tenant net lease 334,636 1,198 (234) 335,600 SBA commercial real estate 55,508 387 1,082 56,977 Multifamily 42,368 139 (37) 42,470 Residential construction 9,361 25 (28) 9,358 Commercial construction 6,941 24 (26) 6,939 Land and land development 9,403 20 (11) 9,412 Commercial business 60,513 186 43 60,742 SBA commercial business 206,807 975 (2,740) 205,042 Consumer 50,576 175 (23) 50,728 $ 1,109,416 $ 4,585 $ (2,327) $ 1,111,674 Individually Collectively Recorded Evaluated for Evaluated for Investment in Impairment Impairment Loans (In thousands) Recorded Investment in Loans as Evaluated for Impairment: Residential real estate $ 5,359 $ 186,910 $ 192,269 Commercial real estate 1,134 141,003 142,137 Single tenant net lease — 335,600 335,600 SBA commercial real estate 6,927 50,050 56,977 Multifamily 698 41,772 42,470 Residential construction — 9,358 9,358 Commercial construction — 6,939 6,939 Land and land development 2 9,410 9,412 Commercial business 1,670 59,072 60,742 SBA commercial business 695 204,347 205,042 Consumer 199 50,529 50,728 $ 16,684 $ 1,094,990 $ 1,111,674
Schedule of Allowance for Loan Losses	The following table presents the balance in the allowance for loan losses by portfolio segment and based on impairment method as of March 31, 2021 and September 30, 2020: Individually Collectively Evaluated for Evaluated for Ending Impairment Impairment Balance (In thousands) March 31, 2021: Residential real estate $ 27 $ 1,595 $ 1,622 Commercial real estate — 3,060 3,060 Single tenant net lease — 3,349 3,349 SBA commercial real estate 501 3,301 3,802 Multifamily — 810 810 Residential construction — 136 136 Commercial construction — 239 239 Land and land development — 283 283 Commercial business 5 1,531 1,536 SBA commercial business 41 1,508 1,549 Consumer — 1,033 1,033 $ 574 $ 16,845 $ 17,419 September 30, 2020: Residential real estate $ 30 $ 1,225 $ 1,255 Commercial real estate — 3,058 3,058 Single tenant net lease — 3,017 3,017 SBA commercial real estate 1,366 2,788 4,154 Multifamily — 772 772 Residential construction — 243 243 Commercial construction — 181 181 Land and land development — 243 243 Commercial business — 1,449 1,449 SBA commercial business 47 1,492 1,539 Consumer — 1,115 1,115 $ 1,443 $ 15,583 $ 17,026 The following table presents the activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2021 and 2020: Beginning Ending Balance Provisions Charge-Offs Recoveries Balance (In thousands) March 31, 2021: Residential real estate $ 1,176 $ 442 $ — $ 4 $ 1,622 Commercial real estate 3,007 53 — — 3,060 Single tenant net lease 3,233 116 — — 3,349 SBA commercial real estate 3,624 178 — — 3,802 Multifamily 713 97 — — 810 Residential construction 149 (13) — — 136 Commercial construction 212 27 — — 239 Land and land development 300 (17) — — 283 Commercial business 1,487 45 — 4 1,536 SBA commercial business 1,536 3 — 10 1,549 Consumer 1,687 (644) (22) 12 1,033 $ 17,124 $ 287 $ (22) $ 30 $ 17,419 March 31, 2020: Residential real estate $ 318 $ 54 $ (4) $ 11 $ 379 Commercial real estate 2,595 (2) (100) — 2,493 Single tenant net lease 1,947 (581) — — 1,366 SBA commercial real estate 2,282 937 (7) — 3,212 Multifamily 481 18 — — 499 Residential construction 228 (42) — — 186 Commercial construction 57 8 — — 65 Land and land development 202 1 — — 203 Commercial business 967 674 — 1 1,642 SBA commercial business 786 555 (396) — 945 Consumer 667 83 (62) 13 701 $ 10,530 $ 1,705 $ (569) $ 25 $ 11,691 The following table presents the activity in the allowance for loan losses by portfolio segment for the six months ended March 31, 2021 and 2020: Beginning Ending Balance Provisions Charge-Offs Recoveries Balance (In thousands) March 31, 2021: Residential real estate $ 1,255 $ 363 $ (5) $ 9 $ 1,622 Commercial real estate 3,058 2 — — 3,060 Single tenant net lease 3,017 332 — — 3,349 SBA commercial real estate 4,154 163 (522) 7 3,802 Multifamily 772 38 — — 810 Residential construction 243 (107) — — 136 Commercial construction 181 58 — — 239 Land and land development 243 40 — — 283 Commercial business 1,449 82 — 5 1,536 SBA commercial business 1,539 (10) — 20 1,549 Consumer 1,115 (6) (97) 21 1,033 $ 17,026 $ 955 $ (624) $ 62 $ 17,419 March 31, 2020: Residential real estate $ 317 $ 78 $ (36) $ 20 $ 379 Commercial real estate 2,540 53 (100) — 2,493 Single tenant net lease 1,675 (309) — — 1,366 SBA commercial real estate 2,293 888 (15) 46 3,212 Multifamily 478 21 — — 499 Residential construction 248 (62) — — 186 Commercial construction 67 (2) — — 65 Land and land development 209 (6) — — 203 Commercial business 889 747 — 6 1,642 SBA commercial business 750 591 (396) — 945 Consumer 574 211 (126) 42 701 $ 10,040 $ 2,210 $ (673) $ 114 $ 11,691
Schedule of Impaired Loans Individually Evaluated for Impairment	The following table presents impaired loans individually evaluated for impairment as of March 31, 2021 and for the three and six-months ended March 31, 2021 and 2020. The Company did not recognize any interest income on impaired loans using the cash receipts method during the three and six-month periods ended March 31, 2021 and 2020. Three Months Ended Six Months Ended At March 31, 2021 March 31, March 31, 2021 2021 2020 2020 2021 2021 2020 2020 Unpaid Average Interest Average Interest Average Interest Average Interest Recorded Principal Related Recorded Income Recorded Income Recorded Income Recorded Income Investment Balance Allowance Investment Recognized Investment Recognized Investment Recognized Investment Recognized (In thousands) Loans with no related allowance recorded: Residential real estate $ 3,491 $ 4,115 $ — $ 4,503 $ 11 $ 5,338 $ 34 $ 4,899 $ 38 $ 5,215 $ 61 Commercial real estate 1,088 1,154 — 1,161 9 4,659 35 1,169 15 4,861 80 Single tenant net lease 0 0 — 0 — — — 0 0 — — SBA commercial real estate 593 768 — 2,755 — 740 12 2,229 0 541 29 Multifamily 648 693 — 693 — 352 — 696 0 234 — Residential construction — — — 0 — — — 0 0 — 0 Commercial construction — — — 0 — — — 0 0 — — Land and land development 4 1 — 1 — 1 — 1 0 — — Commercial business 1,701 1,758 — 1,712 1 139 — 1,700 1 128 1 SBA commercial business 322 416 — 416 — 208 — 416 0 139 — Consumer 55 56 — 97 — 75 — 86 1 77 2 $ 7,902 $ 8,961 $ — $ 11,358 $ 21 $ 11,512 $ 81 $ 11,196 $ 55 $ 11,195 $ 173 Loans with an allowance recorded: Residential real estate $ 172 $ 175 $ 27 $ 88 $ — $ 55 $ — $ 117 $ — $ 39 $ — Commercial real estate — — — 0 — 50 — — — 33 — Single tenant net lease — — — 0 — — — — — — — SBA commercial real estate 4,793 5,415 501 3,548 — 4,561 — 4,394 — 3,920 — Multifamily — — — 0 — — — — — — — Residential construction — — — 0 — — — — — — — Commercial construction — — — 0 — — — — — — — Land and land development — — — 0 — — — — — — — Commercial business 5 5 5 2 — 783 — 2 — 522 — SBA commercial business 446 553 41 410 — 157 — 406 — 105 — Consumer 107 107 — 220 — 183 — 193 — 174 — $ 5,523 $ 6,255 $ 574 $ 4,268 $ — $ 5,789 $ — $ 5,112 $ — $ 4,793 $ — Total: Residential real estate $ 3,663 $ 4,290 $ 27 $ 4,591 $ 11 $ 5,393 $ 34 $ 5,016 $ 38 $ 5,254 $ 61 Commercial real estate 1,088 1,154 — 1,161 9 4,709 35 1,169 15 4,894 80 Single tenant net lease — — — — — — — — — — — SBA commercial real estate 5,386 6,183 501 6,303 — 5,301 12 6,623 — 4,461 29 Multifamily 648 693 — 693 — 352 — 696 — 234 — Residential construction — — — — — — — — — — — Commercial construction — — — — — — — — — — — Land and land development 4 1 — 1 — 1 — 1 — — — Commercial business 1,706 1,763 5 1,714 1 922 — 1,702 1 650 1 SBA commercial business 768 969 41 826 — 365 — 822 — 244 — Consumer 162 163 0 317 — 258 — 279 1 251 2 $ 13,425 $ 15,216 $ 574 $ 15,606 $ 21 $ 17,301 $ 81 $ 16,308 $ 55 $ 15,988 $ 173 The following table presents impaired loans individually evaluated for impairment as of September 30, 2020. Unpaid Recorded Principal Related Investment Balance Allowance (In thousands) Loans with no related allowance recorded: Residential real estate $ 5,185 $ 5,697 $ — Commercial real estate 1,134 1,185 — Single tenant net lease — — — SBA commercial real estate 1,245 1,178 — Multifamily 698 700 — Residential construction — — — Commercial construction — — — Land and land development 2 1 — Commercial business 1,670 1,675 — SBA commercial business 322 416 — Consumer 61 63 — $ 10,317 $ 10,915 $ — Loans with an allowance recorded: Residential real estate $ 174 $ 175 $ 30 Commercial real estate — — — Single tenant net lease — — — SBA commercial real estate 5,682 6,086 1,366 Multifamily — — — Residential construction — — — Commercial construction — — — Land and land development — — — Commercial business — — — SBA commercial business 373 399 47 Consumer 138 138 — $ 6,367 $ 6,798 $ 1,443 Total: Residential real estate $ 5,359 $ 5,872 $ 30 Commercial real estate 1,134 1,185 — Single tenant net lease — — — SBA commercial real estate 6,927 7,264 1,366 Multifamily 698 700 — Residential construction — — — Commercial construction — — — Land and land development 2 1 — Commercial business 1,670 1,675 — SBA commercial business 695 815 47 Consumer 199 201 — $ 16,684 $ 17,713 $ 1,443
Schedule of Nonperforming Loans	Nonperforming loans consist of nonaccrual loans and loans over 90 days past due and still accruing interest. The following table presents the recorded investment in nonperforming loans at March 31, 2021 and September 30, 2020: At March 31, 2021 At September 30, 2020 Loans 90+ Loans 90+ Days Total Days Total Nonaccrual Past Due Nonperforming Nonaccrual Past Due Nonperforming Loans Still Accruing Loans Loans Still Accruing Loans (In thousands) Residential real estate $ 2,256 $ — $ 2,256 $ 2,797 $ — $ 2,797 Commercial real estate 650 — 650 685 — 685 Single tenant net lease — — — — — — SBA commercial real estate 5,386 — 5,386 6,927 — 6,927 Multifamily 648 — 648 698 — 698 Residential construction — — — — — — Commercial construction — — — — — — Land and land development 4 — 4 2 — 2 Commercial business 1,582 — 1,582 1,668 — 1,668 SBA commercial business 768 — 768 695 — 695 Consumer 112 — 112 143 — 143 Total $ 11,406 $ — $ 11,406 $ 13,615 $ — $ 13,615
Schedule of Aging of Recorded Investment in Past Due Loans	The following table presents the aging of the recorded investment in past due loans at March 31, 2021: 30-59 Days 60-89 Days 90+ Days Total Total Past Due Past Due Past Due Past Due Current Loans (In thousands) Residential real estate $ 1,716 $ — $ 686 $ 2,402 $ 203,070 $ 205,472 Commercial real estate 88 — 650 738 140,796 141,534 Single tenant net lease — — — — 373,143 373,143 SBA commercial real estate — 469 4,419 4,888 54,222 59,110 Multifamily — — — — 44,508 44,508 Residential construction — — — — 5,369 5,369 Commercial construction — — — — 9,195 9,195 Land and land development — — 4 4 10,906 10,910 Commercial business 120 — 37 157 63,466 63,623 SBA commercial business — — 768 768 181,230 181,998 Consumer 64 243 5 312 55,627 55,939 Total $ 1,988 $ 712 $ 6,569 $ 9,269 $ 1,141,532 $ 1,150,801 The following table presents the aging of the recorded investment in past due loans at September 30, 2020: 30-59 60-89 90+ Days Days Days Total Total Past Due Past Due Past Due Past Due Current Loans (In thousands) Residential real estate $ 1,693 $ 480 $ 1,631 $ 3,804 $ 188,465 $ 192,269 Commercial real estate 109 — 685 794 141,343 142,137 Single tenant net lease — — — — 335,600 335,600 SBA commercial real estate — — 1,874 1,874 55,103 56,977 Multifamily — — — — 42,470 42,470 Residential construction — — — — 9,358 9,358 Commercial construction — — — — 6,939 6,939 Land and land development — — 2 2 9,410 9,412 Commercial business 63 — — 63 60,679 60,742 SBA commercial business 373 — 322 695 204,347 205,042 Consumer 233 59 4 296 50,432 50,728 Total $ 2,471 $ 539 $ 4,518 $ 7,528 $ 1,104,146 $ 1,111,674
Schedule of Investment in Loans by Risk Category	Special Pass Mention Substandard Doubtful Loss Total (In thousands) March 31, 2021: Residential real estate $ 202,664 $ — $ 2,628 $ 180 $ — $ 205,472 Commercial real estate 133,444 4,108 3,982 — — 141,534 Single tenant net lease 373,143 — — — — 373,143 SBA commercial real estate 41,698 5,418 8,699 3,295 — 59,110 Multifamily 43,860 — 648 — — 44,508 Residential construction 5,369 — — — — 5,369 Commercial construction 9,195 — — — — 9,195 Land and land development 10,906 — 4 — — 10,910 Commercial business 61,728 149 1,746 — — 63,623 SBA commercial business 178,540 250 3,174 34 — 181,998 Consumer 55,934 — 5 — — 55,939 Total $ 1,116,481 $ 9,925 $ 20,886 $ 3,509 $ — $ 1,150,801 The following table presents the recorded investment in loans by risk category as of September 30, 2020: Special Pass Mention Substandard Doubtful Loss Total (In thousands) September 30, 2020: Residential real estate $ 188,707 $ — $ 3,435 $ 127 $ — $ 192,269 Commercial real estate 133,685 4,112 4,340 — — 142,137 Single tenant net lease 335,600 — — — — 335,600 SBA commercial real estate 38,124 6,518 12,335 — — 56,977 Multifamily 41,772 — 698 — — 42,470 Residential construction 9,358 — — — — 9,358 Commercial construction 6,939 — — — — 6,939 Land and land development 9,410 — 2 — — 9,412 Commercial business 58,707 235 1,800 — — 60,742 SBA commercial business 200,578 294 4,170 — — 205,042 Consumer 50,701 — 27 — — 50,728 Total $ 1,073,581 $ 11,159 $ 26,807 $ 127 $ — $ 1,111,674
Schedule of Investment in Troubled Debt Restructurings by Class of Loan and Accrual Status	The following table summarizes the Company’s recorded investment in TDRs at March 31, 2021 and September 30, 2020. There was $32,000 of specific reserve included in the allowance for loan losses related to TDRs at March 31, 2021. There was $538,000 of specific reserve included in the allowance for loan losses related to TDRs at September 30, 2020. Accruing Nonaccrual Total (In thousands) March 31, 2021: Residential real estate $ 1,407 $ — $ 1,407 Commercial real estate 438 489 927 SBA commercial real estate — 3,296 3,296 Multifamily — 648 648 Commercial business 124 1,545 1,669 Consumer 50 — 50 Total $ 2,019 $ 5,978 $ 7,997 September 30, 2020: Residential real estate $ 2,562 $ 116 $ 2,678 Commercial real estate 449 512 961 SBA commercial real estate — 3,800 3,800 Multifamily — 698 698 Commercial business 2 1,668 1,670 Consumer 56 — 56 Total $ 3,069 $ 6,794 $ 9,863
Schedule of Troubled Debt Restructurings	The following table summarizes information regarding TDRs that were restructured during the three- and six-month periods ended March 31, 2021 and 2020: Number of Pre-Modification Post-Modification Loans Principal Balance Principal Balance (Dollars in thousands) Three Months Ended March 31, 2021: Commercial business 1 $ 126 $ 126 Total 1 $ 126 $ 126 Six Months Ended March 31, 2021: Commercial business 1 $ 126 $ 126 Total 1 $ 126 $ 126 Three Months Ended March 31, 2020: Residential real estate 1 $ 1,099 $ 1,100 SBA commercial real estate 1 3,831 3,832 Total 2 $ 4,930 $ 4,932 Six Months Ended March 31, 2020: Residential real estate 1 $ 1,099 $ 1,100 SBA commercial real estate 1 3,831 3,832 Total 2 $ 4,930 $ 4,932
SBA Loan Servicing Rights [Member]
Loans and Allowance for Loan Losses
Schedule of Loan Servicing Rights	An analysis of SBA loan servicing rights for the three and six-month periods ended March 31, 2021 and 2020 is as follows: Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (In thousands) Balance, beginning of period $ 3,722 $ 3,005 $ 3,748 $ 3,030 Servicing rights capitalized 746 329 1,072 551 Amortization (175) (250) (376) (467) Direct write-offs (92) — (275) — Change in valuation allowance (79) (193) (47) (223) Balance, end of period $ 4,122 $ 2,891 $ 4,122 $ 2,891
Mortgage Servicing Rights [Member]
Loans and Allowance for Loan Losses
Schedule of Loan Servicing Rights	Changes in the carrying value of MSRs accounted for at fair value for the three and six-month periods ended March 31, 2021 and 2020 were as follows: Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (In thousands) Fair value,beginning of period $ 31,510 $ 3,254 $ 21,703 $ 934 Servicing rights capitalized 14,611 1,908 27,483 4,185 Changes in fair value related to: Loan repayments (2,733) (145) (4,549) (184) Change in valuation model inputs or assumptions 1,857 (962) 608 (880) Balance, end of period $ 45,245 $ 4,055 $ 45,245 $ 4,055
Schedule of Key Assumptions Used to Estimate The Fair Value	Range of Assumption Range of Assumption (Weighted Average) (Weighted Average) Assumption March 31, 2021 September 30, 2020 Discount rate 9.00% 9.25% Prepayment rate 2.78% to 79.65% (10.09%) 2.99% to 86.98% (18.08%)

Deposits (Tables)

Deposits (Tables)	6 Months Ended
Deposits (Tables)	Mar. 31, 2021
Deposits
Schedule of deposits	Deposits at March 31, 2021 and September 30, 2020 consisted of the following: March 31, September 30, 2021 2020 (In thousands) Noninterest-bearing demand deposits $ 284,742 $ 242,673 NOW accounts 259,897 218,581 Money market accounts 170,467 143,867 Savings accounts 159,251 142,609 Retail time deposits 144,133 168,276 Brokered and reciprocal time deposits 77,006 132,070 Total $ 1,095,496 $ 1,048,076

Supplemental Disclosure for N_2

Supplemental Disclosure for Net Income Per Share (Tables)	6 Months Ended
Supplemental Disclosure for Net Income Per Share (Tables)	Mar. 31, 2021
Supplemental Disclosure for Net Income Per Share
Schedule of net income per share information	Net income per share information is presented below for the three and six-month periods ended March 31, 2021 and 2020. Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (Dollars in thousands, except per share data) Basic: Earnings: Net income (loss) attributable to First Savings Financial Group, Inc. $ 10,487 $ (627) $ 20,410 $ 2,812 Shares: Weighted average common shares outstanding, basic 2,369,642 2,355,750 2,368,338 2,348,145 Net income (loss) per common share, basic $ 4.43 $ (0.27) $ 8.62 $ 1.20 Diluted: Earnings: Net income (loss) attributable to First Savings Financial Group, Inc. $ 10,487 $ (627) $ 20,410 $ 2,812 Shares: Weighted average common shares outstanding, basic 2,369,642 2,355,750 2,368,338 2,348,145 Add: Dilutive effect of outstanding options 16,363 21,440 15,264 29,220 Add: Dilutive effect of restricted stock 2,058 2,711 2,773 3,991 Weighted average common shares outstanding, as adjusted 2,388,063 2,379,901 2,386,375 2,381,356 Net income (loss) per common share, diluted $ 4.39 $ (0.26) $ 8.55 $ 1.18

Supplemental Disclosures of C_2

Supplemental Disclosures of Cash Flow Information (Tables)	6 Months Ended
Supplemental Disclosures of Cash Flow Information (Tables)	Mar. 31, 2021
Supplemental Disclosures of Cash Flow Information
Schedule Of supplemental disclosures of cash flow information	Six Months Ended March 31, 2021 2020 (In thousands) Cash payments for: Interest $ 4,170 $ 5,820 Income taxes (net of refunds received) 8,659 1,195 Noncash investing and financing activities: Transfers from loans to other real estate owned 370 — Noncash exercise of stock options 48 249

Fair Value Measurements and D_2

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments (Tables)	6 Months Ended
	Mar. 31, 2021
Fair Value Measurements and Disclosures about Fair Value of Financial Instruments
Schedule of financial assets and liabilities measured at fair value on a recurring and nonrecurring basis	Carrying Value Level 1 Level 2 Level 3 Total (In thousands) March 31, 2021: Assets Measured – Recurring Basis: Securities available for sale: U.S. agency bonds and notes $ — $ 500 $ — $ 500 Agency mortgage-backed — 9,649 — 9,649 Agency CMO — 9,145 — 9,145 Privately-issued CMO — 858 — 858 Privately-issued ABS — 860 — 860 SBA certificates — 2,333 — 2,333 Municipal — 182,029 — 182,029 Total securities available for sale $ — $ 205,374 $ — $ 205,374 Residential mortgage loans held for sale – fair value option elected $ — $ 147,248 $ — $ 147,248 Derivative assets (included in other assets) $ — $ 5,662 $ 262 $ 5,924 Equity securities (included in other assets) $ 104 $ — $ — $ 104 Residential mortgage servicing rights $ — $ — $ 45,245 $ 45,245 Liabilities Measured – Recurring Basis: Derivative liabilities (included in other liabilities) $ — $ 72 $ — $ 72 Assets Measured – Nonrecurring Basis: Impaired loans: Residential real estate $ — $ — $ 3,636 $ 3,636 Commercial real estate — — 1,088 1,088 SBA commercial real estate — — 4,885 4,885 Multifamily — — 648 648 Land and land development — — 4 4 Commercial business — — 1,701 1,701 SBA commercial business — — 727 727 Consumer — — 162 162 Total impaired loans $ — $ — $ 12,851 $ 12,851 Residential mortgage loans held for sale – fair value option not elected $ — $ 43,189 $ — $ 43,189 SBA loans held for sale $ — $ — $ 16,704 $ 16,704 SBA loan servicing rights $ — $ — $ 4,122 $ 4,122 Other real estate owned, held for sale: SBA commercial real estate $ — $ — $ 315 $ 315 Former bank premises — — 1,728 1,728 Total other real estate owned $ — $ — $ 2,043 $ 2,043 Carrying Value Level 1 Level 2 Level 3 Total (In thousands) September 30, 2020: Assets Measured – Recurring Basis Securities available for sale: Agency mortgage-backed $ — $ 7,952 $ — $ 7,952 Agency CMO — 9,805 — 9,805 Privately-issued CMO — 958 — 958 Privately-issued ABS — 960 — 960 SBA certificates — 694 — 694 Municipal bonds — 181,596 — 181,596 Total securities available for sale $ — $ 201,965 $ — $ 201,965 Residential mortgage loans held for sale – fair value option elected $ — $ 208,493 $ — $ 208,493 Derivative assets (included in other assets) $ — $ 226 $ 14,937 $ 15,163 Equity securities (included in other assets) $ 66 $ — $ — $ 66 Residential mortgage servicing rights $ — $ — $ 21,703 $ 21,703 Liabilities Measured – Recurring Basis Derivative liabilities (included in other liabilities) $ — $ 1,827 $ — $ 1,827 Assets Measured – Nonrecurring Basis Impaired loans: Residential real estate $ — $ — $ 5,329 $ 5,329 Commercial real estate — — 1,134 1,134 SBA commercial real estate — — 5,561 5,561 Multifamily — — 698 698 Land and land development — — 2 2 Commercial business — — 1,670 1,670 SBA commercial business — — 648 648 Consumer — — 199 199 Total impaired loans $ — $ — $ 15,241 $ 15,241 Residential mortgage loans held for sale – fair value option not elected $ — $ 54,913 $ — $ 54,913 SBA loans held for sale $ — $ 22,119 $ — $ 22,119 SBA loan servicing rights $ — $ — $ 3,748 $ 3,748 Other real estate owned, held for sale: Former bank premises $ — $ — $ 1,728 $ 1,728 Total other real estate owned $ — $ — $ 1,728 $ 1,728
Schedule of reconciliation of derivative assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	The table below presents a reconciliation of derivative assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six-month periods ended March 31, 2021 and 2020: Three Months Ended Six Months Ended March 31, March 31, (In thousands) 2021 2020 2021 2020 Beginning balance $ 11,415 $ 2,921 $ 14,937 $ 3,269 Unrealized gains/(losses) recognized in earnings, net of settlements (11,153) 2,757 (14,675) 2,409 Ending balance $ 262 $ 5,678 $ 262 $ 5,678
Schedule of significant unobservable inputs (Level 3) used in the valuation of derivative financial instruments measured at fair value on a recurring basis	The table below presents information about significant unobservable inputs (Level 3) used in the valuation of derivative financial instruments measured at fair value on a recurring basis as of March 31, 2021 and September 30, 2020. Range of Inputs Range of Inputs (Weighted Average) (Weighted Average) Significant March 31, September 30, Financial Instrument Unobservable Inputs 2021 2020 Interest rate lock commitments Pull-through rate 57% - 100% (87%) 0% - 100% (80%) Direct costs to close 0.34% - 1.55% (0.78%) 0.31% - 1.01% (0.52%)
Schedule of aggregate fair value and the aggregate remaining principal balance for residential mortgage loans held for sale	The table below presents the difference between the aggregate fair value and the aggregate remaining principal balance for residential mortgage loans held for sale for which the fair value option had been elected as of March 31, 2021 and September 30, 2020. Aggregate Aggregate Principal Fair Value Balance March 31, March 31, (In thousands) 2021 2020 Difference Residential mortgage loans held for sale $ 147,248 $ 144,877 $ 2,371 Aggregate Aggregate Principal Fair Value Balance September 30, September 30, (In thousands) 2021 2020 Difference Residential mortgage loans held for sale $ 208,493 $ 198,138 $ 10,355
Schedule of gains and losses and interest included in earnings related to financial assets measured at fair value under the fair value option	The table below presents gains and losses and interest included in earnings related to financial assets measured at fair value under the fair value option for the three and six-month periods ended March 31, 2021 and 2020: Three Months Ended Six Months Ended March 31, March 31, (In thousands) 2021 2020 2021 2020 Gains (losses) – included in mortgage banking income $ (8,417) $ 980 $ 191 $ 3,356 Interest income 1,431 917 3,264 1,596 $ (6,986) $ 1,897 $ 3,455 $ 4,952
Schedule of carrying value and estimated fair value of financial instruments and the level within the fair value hierarchy in which the fair value measurements fall	Fair Value Measurements Carrying Using: Amount Level 1 Level 2 Level 3 (In thousands) March 31, 2021: Financial assets: Cash and due from banks $ 13,040 $ 13,040 $ — $ — Interest-bearing deposits with banks 17,797 17,797 — — Interest-bearing time deposits 2,474 — 2,474 — Securities available for sale 205,374 — 205,374 — Securities held to maturity 1,957 — 2,219 — Residential mortgage loans held for sale 190,437 — 190,437 — SBA loans held for sale 16,704 — — 18,917 Loans, net 1,128,348 — — 1,174,491 FRB and FHLB stock 19,258 N/A N/A N/A Accrued interest receivable 6,877 — 6,877 — SBA loan servicing rights 4,122 — — 4,310 Residential mortgage loan servicing rights 45,245 — — 45,245 Derivative assets (included in other assets) 5,924 — 5,662 262 Equity securities (included in other assets) 104 104 — — Financial liabilities: Deposits 1,095,496 — — 1,096,481 Borrowings from FHLB 289,237 — 291,110 — Federal Reserve PPPLF borrowings 128,494 — 128,475 — Subordinated note 19,831 — 23,638 — Accrued interest payable 866 — 866 — Advance payments by borrowers for taxes and insurance 1,488 — 1,488 — Derivative liabilities (included in other liabilities) 72 — 72 — Fair Value Measurements Carrying Using: Amount Level 1 Level 2 Level 3 (In thousands) September 30, 2020: Financial assets: Cash and due from banks $ 12,807 $ 12,807 $ — $ — Interest-bearing deposits with banks 20,919 20,919 — — Interest-bearing time deposits 2,964 — 2,964 — Securities available for sale 201,965 — 201,965 — Securities held to maturity 2,102 — 2,385 — Residential mortgage loans held for sale 263,406 — 263,519 — SBA loans held for sale 22,119 — 24,666 — Loans, net 1,090,063 — — 1,152,962 FRB and FHLB stock 17,293 N/A N/A N/A Accrued interest receivable 6,462 — 6,462 — SBA loan servicing rights 3,748 — — 3,934 Residential mortgage loan servicing rights 21,703 — — 21,703 Derivative assets (included in other assets) 15,163 — 226 14,937 Equity securities (included in other assets) 66 66 — — Financial liabilities: Deposits 1,048,076 — — 1,050,569 Borrowings from FHLB 310,858 — 310,766 — Subordinated note 19,797 — 23,788 — Federal Reserve PPPLF borrowings 174,834 — 174,808 — Accrued interest payable 683 — 683 — Advance payments by borrowers for taxes and insurance 2,615 — 2,615 — Derivative liabilities (included in other liabilities) 1,827 — 1,827 —

Stock Based Compensation Plans

Stock Based Compensation Plans (Tables)	6 Months Ended
Stock Based Compensation Plans (Tables)	Mar. 31, 2021
Stock Based Compensation Plans
Schedule of fair value of options granted	The fair value of options granted during the six-month period ended March 31, 2021 was determined using the following assumptions: Expected dividend yield 1.75 % Risk-free interest rate 2.13 % Expected volatility 14.6 % Expected life of options 7.5 years Weighted average fair value at grant date $ 6.13
Schedule of stock option activity	A summary of stock option activity as of March 31, 2021, and changes during the six-month period then ended is presented below. Weighted Average Remaining Weighted Contractual Aggregate Number of Average Term Intrinsic Shares Exercise Price (Years) Value (Dollars in thousands, except per share data) Outstanding at beginning of period 68,403 $ 48.11 Granted 7,555 63.30 Exercised (1,300) 40.09 Forfeited or expired (600) 40.09 Outstanding at end of period 74,058 $ 49.86 6.7 $ 1,260 Vested and expected to vest 74,058 $ 49.86 6.7 $ 1,260 Exercisable at end of period 42,108 $ 44.04 6.0 $ 976
Schedule of nonvested restricted shares activity	A summary of the Company’s nonvested restricted shares activity as of March 31, 2021 and changes during the six-month period then ended is presented below. Weighted Number Average of Grant Date Shares Fair Value Nonvested at October 1, 2020 10,808 $ 48.04 Granted — $ — Vested (4,375) $ 44.77 Forfeited (200) $ 40.09 Nonvested at March 31, 2021 6,233 $ 50.59

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
Derivative Financial Instruments (Tables)	Mar. 31, 2021
Derivative Financial Instruments
Schedule of Derivative financial instruments	The tables below provide information on the Company’s derivative financial instruments as of March 31, 2021 and September 30, 2020. Notional Asset Liability Amount Derivatives Derivatives March 31, March 31, March 31, (In thousands) 2021 2021 2021 Interest rate lock commitments $ 501,695 $ 262 $ — Forward mortgage loan sale contracts 457,100 5,662 72 $ 958,795 $ 5,924 $ 72 Notional Asset Liability Amount Derivatives Derivatives September 30, September 30, September 30, (In thousands) 2020 2020 2020 Interest rate lock commitments $ 793,671 $ 14,937 $ — Forward mortgage loan sale contracts 605,750 226 1,827 $ 1,399,421 $ 15,163 $ 1,827
Schedule of Income (loss) related to derivative financial instruments	Three Months Ended Six Months Ended March 31, March 31, (In thousands) 2021 2020 2021 2020 Interest rate lock commitments $ (11,153) $ 2,757 $ (14,675) $ 2,409 Forward mortgage loan sale contracts 18,977 (10,380) 11,614 (10,817) $ 7,824 $ (7,623) $ (3,061) $ (8,408)

Regulatory Capital (Tables)

Regulatory Capital (Tables)	6 Months Ended
Regulatory Capital (Tables)	Mar. 31, 2021
Regulatory Capital
Schedule Of Actual capital amounts and ratios	Minimum To Be Well Minimum Capitalized Under For Capital Prompt Corrective Actual Adequacy Purposes: Action Provisions: Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) As of March 31, 2021: Total capital (to risk-weighted assets): Consolidated $ 188,352 13.82 % $ 108,998 8.00 % N/A N/A Bank 180,839 13.30 108,794 8.00 $ 135,993 10.00 % Tier 1 capital (to risk-weighted assets): Consolidated $ 151,517 11.12 % $ 81,748 6.00 % N/A N/A Bank 163,835 12.05 81,596 6.00 $ 108,794 8.00 % Common equity tier 1 capital (to risk-weighted assets): Consolidated $ 151,517 11.12 % $ 61,311 4.50 % N/A N/A Bank 163,835 12.05 61,197 4.50 $ 88,395 6.50 % Tier 1 capital (to average adjusted total assets): Consolidated $ 151,517 9.36 % $ 64,719 4.00 % N/A N/A Bank 163,835 10.22 64,103 4.00 $ 80,129 5.00 % As of September 30, 2020: Total capital (to risk-weighted assets): Consolidated $ 168,617 13.37 % $ 100,929 8.00 % N/A N/A Bank 160,452 12.75 100,672 8.00 $ 125,840 10.00 % Tier 1 capital (to risk-weighted assets): Consolidated $ 133,520 10.58 % $ 75,697 6.00 % N/A N/A Bank 145,152 11.53 75,504 6.00 $ 100,672 8.00 % Common equity tier 1 capital (to risk-weighted assets): Consolidated $ 133,520 10.58 % $ 56,773 4.50 % N/A N/A Bank 145,152 11.53 56,428 4.50 $ 81,796 6.50 % Tier 1 capital (to average adjusted total assets): Consolidated $ 133,520 8.53 % $ 62,617 4.00 % N/A N/A Bank 145,152 9.37 61,966 4.00 $ 77,458 5.00 %

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
Segment Reporting (Tables)	Mar. 31, 2021
Segment Reporting
Schedule of sum of the segment amounts and consolidated totals	Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Three Months Ended March 31, 2021: Net interest income (loss) $ 11,422 $ 3,227 $ 439 $ (308) $ 14,780 Provision for loan losses 106 181 — — 287 Net interest income (loss) after provision 11,316 3,046 439 (308) 14,493 Net gains on sales of loans, SBA — 3,239 — — 3,239 Mortgage banking income 2 — 32,396 — 32,398 Noninterest income 1,490 3,407 34,076 — 38,973 Noninterest expense (income) 9,224 2,449 27,844 (233) 39,284 Income (loss) before taxes 3,582 4,004 6,671 (75) 14,182 Income tax expense (benefit) 633 1,005 2,183 (126) 3,695 Segment profit 2,949 2,999 4,488 51 10,487 Non cash items: Depreciation and amortization 493 12 62 17 584 Segment assets at March 31, 2021 1,489,670 257,566 246,144 (242,771) 1,750,609 Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Six Months Ended March 31, 2021: Net interest income (loss) $ 22,587 $ 5,374 $ 1,170 $ (612) $ 28,519 Provision for loan losses 808 147 — — 955 Net interest income (loss) after provision 21,779 5,227 1,170 (612) 27,564 Net gains on sales of loans, SBA — 4,506 — — 4,506 Mortgage banking income — — 74,698 — 74,698 Noninterest income 3,042 4,792 77,322 — 85,156 Noninterest expense (income) 17,510 5,195 61,388 (407) 83,686 Income (loss) before taxes 7,311 4,824 17,104 (205) 29,034 Income tax expense (benefit) 1,322 1,110 6,035 (245) 8,222 Segment profit 5,989 3,714 11,069 40 20,812 Non cash items: Depreciation and amortization 954 23 121 34 1,132 Segment assets at March 31, 2021 1,489,670 257,566 246,144 (242,771) 1,750,609 Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Three Months Ended March 31, 2020: Net interest income (loss) $ 9,335 $ 1,151 $ 585 $ (300) $ 10,771 Provision for loan losses 216 1,489 — — 1,705 Net interest income (loss) after provision 9,119 (338) 585 (300) 9,066 Net gains on sales of loans, SBA — 1,229 — — 1,229 Mortgage banking income 3 — 8,408 — 8,411 Noninterest income 1,411 1,209 8,513 — 11,133 Noninterest expense (income) 6,809 1,841 13,514 (89) 22,075 Income (loss) before taxes 3,721 (970) (4,416) (211) (1,876) Income tax expense (benefit) 801 (124) (1,241) (210) (774) Segment profit (loss) 2,920 (846) (3,175) (1) (1,102) Non cash items: Depreciation and amortization 279 14 42 17 352 Segment assets at March 31, 2020 1,197,685 106,296 161,134 (96,863) 1,368,252 Core SBA Mortgage Consolidated Banking Lending Banking Other Totals (In thousands) Six Months Ended March 31, 2020: Net interest income (loss) $ 18,644 $ 2,368 $ 1,142 $ (597) $ 21,557 Provision for loan losses 736 1,474 — — 2,210 Net interest income (loss) after provision 17,908 894 1,142 (597) 19,347 Net gains on sales of loans, SBA — 1,990 — — 1,990 Mortgage banking income 4 — 24,330 — 24,334 Noninterest income 2,802 2,138 24,425 — 29,365 Noninterest expense (income) 14,002 3,666 28,852 (173) 46,347 Income (loss) before taxes 6,708 (634) (3,285) (424) 2,365 Income tax expense (benefit) 1,317 (81) (976) (396) (136) Segment profit (loss) 5,391 (553) (2,309) (28) 2,501 Non cash items: Depreciation and amortization 621 27 79 34 761 Segment assets at March 31, 2020 1,197,685 106,296 161,134 (96,863) 1,368,252

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	6 Months Ended
Revenue from Contracts with Customers (Tables)	Mar. 31, 2021
Revenue from Contracts with Customers
Schedule of sources of noninterest income	Substantially all of the Company’s revenue from contracts with customers within the scope of FASB ASC 606 is included in the core banking segment and is recognized within noninterest income. The following table presents the Company’s sources of noninterest income for the three and six-month periods ended March 31, 2021 and 2020: Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (In thousand) Service charges on deposit accounts $ 328 $ 441 $ 724 $ 950 ATM and interchange fees 513 524 1,145 1,027 Investment advisory income 365 83 499 110 Other 32 31 55 57 Revenue from contracts with customers 1,238 1,079 2,423 2,144 Gain on sale of securities — 7 — 7 Gain on sale of SBA loans 3,239 1,229 4,506 1,990 Mortgage banking income 32,398 8,411 74,698 24,334 Increase in cash value of life insurance 174 194 360 356 Real estate lease income 149 152 296 303 Loan servicing and other income 1,775 61 2,873 231 Other noninterest income 37,735 10,054 82,733 27,221 Total noninterest income $ 38,973 $ 11,133 $ 85,156 $ 29,365

Leases (Tables)

Leases (Tables)	6 Months Ended
Leases (Tables)	Mar. 31, 2021
Leases
Schedule of components of lease	Three Months Ended Six Months Ended Three Months Ended Six Months Ended March 31, March 31, March 31, March 31, 2021 2021 2020 2020 Operating lease cost $ 260 $ 634 $ 295 $ 585 Short-term lease cost 235 412 195 315 $ 495 $ 1,046 $ 490 $ 900
Schedule of future minimum commitments due under the lease agreements	Future minimum commitments due under these lease agreements as of March 31, 2021 are as follows, including renewal options that are reasonably certain to be exercised: 2021 (remaining six months) $ 665 2022 1,215 2023 882 2024 790 2025 540 Thereafter 5,479 Total lease payments 9,571 Less imputed interest (1,947) Total $ 7,624
Schedule of lease term and discount rate	The lease term and discount rate at March 31, 2021 and September 30, 2020 were as follows: March 31, September 30, 2021 2020 Weighted-average remaining lease term (years) 18.7 22.6 Weighted-average discount rate 2.27 % 2.75 %
Schedule of supplemental cash flow information related to leases	Supplemental cash flow information for the six–month periods ended March 31, 2021 and 2020 related to leases was as follows: 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 710 $ 524 ROU assets obtained in exchange for lease obligations: Operating leases $ 2,037 $ 7,506

Mortgage Banking Income (Tables

Mortgage Banking Income (Tables)	6 Months Ended
Mortgage Banking Income (Tables)	Mar. 31, 2021
Mortgage Banking Income
Summary of components of mortgage banking income	Three Months Ended Six Months Ended March 31, March 31, 2021 2020 2021 2020 (In thousand) Origination and sale of mortgage loans (1) $ 19,367 $ 14,363 $ 62,103 $ 28,989 Net change in fair value of loans held for sale and interest rate lock commitments (19,570) 3,736 (21,987) 3,272 Realized and unrealized hedging gains (losses) 18,977 (10,380) 11,614 (10,817) Capitalized residential mortgage loan servicing rights 14,611 1,908 27,483 4,185 Net change in fair value of residential mortgage loan servicing rights (876) (1,107) (3,941) (1,064) Provisions for loan repurchases and indemnifications (111) (109) (574) (231) Total mortgage banking income $ 32,398 $ 8,411 $ 74,698 $ 24,334 (1) Includes origination fees and realized gains and losses on the sale of mortgage loans in the secondary market.

Presentation of Interim Infor_2

Presentation of Interim Information (Details) - USD ($)	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2021
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Additional Interest in Subsidiaries			$ 3,172,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests		$ 131,000	$ 2,583,000
Subsidiary [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage		51.00%	51.00%
Subsidiary [Member] \| Business Capital LLC [Member]
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Additional Interest in Subsidiaries	$ 3,100,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	695,000
Deferred Income Tax Assets, Net	590,000
Additional Paid in Capital	$ 1,900,000

Investment Securities - Fair Va

Investment Securities - Fair Value to Amortized Cost (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Securities available for sale:
Amortized Cost	$ 193,750	$ 187,778
Gross Unrealized Gain	12,236	14,259
Gross Unrealized Losses	612	72
Fair Value	205,374	201,965
Securities held to maturity:
Amortized Cost	1,957	2,102
Gross Unrealized Gain	262	283
Gross Unrealized Losses		0
Fair Value	2,219	2,385
U.S. agency bonds and notes
Securities available for sale:
Amortized Cost	500
Fair Value	500
Agency mortgage-backed
Securities available for sale:
Amortized Cost	9,374	7,499
Gross Unrealized Gain	380	453
Gross Unrealized Losses	105	0
Fair Value	9,649	7,952
Securities held to maturity:
Amortized Cost	73	82
Gross Unrealized Gain	6	7
Gross Unrealized Losses		0
Fair Value	79	89
Agency CMO
Securities available for sale:
Amortized Cost	8,965	9,398
Gross Unrealized Gain	219	407
Gross Unrealized Losses	39	0
Fair Value	9,145	9,805
Privately-issued CMO
Securities available for sale:
Amortized Cost	776	886
Gross Unrealized Gain	89	80
Gross Unrealized Losses	7	8
Fair Value	858	958
Privately-issued ABS
Securities available for sale:
Amortized Cost	794	884
Gross Unrealized Gain	67	81
Gross Unrealized Losses	1	5
Fair Value	860	960
SBA certificates
Securities available for sale:
Amortized Cost	2,355	639
Gross Unrealized Gain	4	58
Gross Unrealized Losses	26	3
Fair Value	2,333	694
Municipal bonds
Securities available for sale:
Amortized Cost	170,986	168,472
Gross Unrealized Gain	11,477	13,180
Gross Unrealized Losses	434	56
Fair Value	182,029	181,596
Securities held to maturity:
Amortized Cost	1,884	2,020
Gross Unrealized Gain	256	276
Gross Unrealized Losses		0
Fair Value	$ 2,140	$ 2,296

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Fair Value by Contractual Maturity - Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Available for Sale - Amortized Cost
Amortized Cost	$ 193,750	$ 187,778
Available for Sale - Fair Value
Fair Value	205,374	201,965
Municipal bonds
Available for Sale - Amortized Cost
Due within one year	8,501
Due after one year through five years	27,848
Due after five years through ten years	30,486
Due after ten years	104,651
Amortized Cost	170,986	168,472
Available for Sale - Fair Value
Due within one year	8,588
Due after one year through five years	29,071
Due after five years through ten years	32,508
Due after ten years	112,362
Fair Value	182,029	181,596
CMO
Available for Sale - Amortized Cost
Without single maturity date	9,741
Available for Sale - Fair Value
Without single maturity date	10,003
ABS
Available for Sale - Amortized Cost
Without single maturity date	794
Available for Sale - Fair Value
Without single maturity date	860
SBA certificates
Available for Sale - Amortized Cost
Without single maturity date	2,355
Amortized Cost	2,355	639
Available for Sale - Fair Value
Without single maturity date	2,333
Fair Value	2,333	$ 694
Mortgage-backed securities
Available for Sale - Amortized Cost
Without single maturity date	9,374
Available for Sale - Fair Value
Without single maturity date	$ 9,649

Investment Securities - Amort_2

Investment Securities - Amortized Cost and Fair Value by Contractual Maturity - Held to Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Held to Maturity - Amortized Cost
Amortized Cost	$ 1,957	$ 2,102
Held to Maturity - Fair Value
Fair Value	2,219	2,385
Municipal bonds
Held to Maturity - Amortized Cost
Due within one year	253
Due after one year through five years	971
Due after five years through ten years	660
Amortized Cost	1,884	2,020
Held to Maturity - Fair Value
Due within one year	282
Due after one year through five years	1,095
Due after five years through ten years	763
Fair Value	2,140	$ 2,296
Mortgage-backed securities
Held to Maturity - Amortized Cost
Without single maturity date	73
Held to Maturity - Fair Value
Without single maturity date	$ 79

Investment Securities - Investm

Investment Securities - Investment Securities With Gross Unrealized Losses (Details) $ in Thousands	Mar. 31, 2021USD ($)position	Sep. 30, 2020USD ($)position
Fair Value
Continuous loss position less than twelve months	$ 16,924	$ 2,890
Continuous loss position more than twelve months	2,375	214
Total securities available for sale	$ 19,299	$ 3,104
Number of Investment Positions
Continuous loss position less than twelve months \| position	16	3
Continuous loss position more than twelve months \| position	4	2
Total securities available for sale \| position	20	5
Gross Unrealized Losses
Continuous loss position less than twelve months	$ 440	$ 61
Continuous loss position more than twelve months	172	11
Total securities available for sale	612	72
Agency mortgage-backed
Fair Value
Continuous loss position less than twelve months	$ 3,076
Number of Investment Positions
Continuous loss position less than twelve months \| position	1
Gross Unrealized Losses
Continuous loss position less than twelve months	$ 105
Agency CMO
Fair Value
Continuous loss position less than twelve months	$ 1,456
Number of Investment Positions
Continuous loss position less than twelve months \| position	2
Gross Unrealized Losses
Continuous loss position less than twelve months	$ 39
Privately-issued CMO
Fair Value
Continuous loss position more than twelve months	$ 23	$ 26
Number of Investment Positions
Continuous loss position more than twelve months \| position	1	1
Gross Unrealized Losses
Continuous loss position more than twelve months	$ 7	$ 8
Privately-issued ABS
Fair Value
Continuous loss position less than twelve months		$ 446
Continuous loss position more than twelve months	$ 400
Number of Investment Positions
Continuous loss position less than twelve months \| position		1
Continuous loss position more than twelve months \| position	1
Gross Unrealized Losses
Continuous loss position less than twelve months		$ 5
Continuous loss position more than twelve months	$ 1
SBA certificates
Fair Value
Continuous loss position less than twelve months	2,179
Continuous loss position more than twelve months	$ 115	$ 188
Number of Investment Positions
Continuous loss position less than twelve months \| position	1
Continuous loss position more than twelve months \| position	1	1
Gross Unrealized Losses
Continuous loss position less than twelve months	$ 25
Continuous loss position more than twelve months	1	$ 3
Municipal bonds
Fair Value
Continuous loss position less than twelve months	10,213	$ 2,444
Continuous loss position more than twelve months	$ 1,837
Number of Investment Positions
Continuous loss position less than twelve months \| position	12	2
Continuous loss position more than twelve months \| position	1
Gross Unrealized Losses
Continuous loss position less than twelve months	$ 271	$ 56
Continuous loss position more than twelve months	$ 163

Investment Securities - Additio

Investment Securities - Additional Information (Details)	3 Months Ended	6 Months Ended
Investment Securities - Additional Information (Details)	Mar. 31, 2020USD ($)	Mar. 31, 2021USD ($)position	Mar. 31, 2020USD ($)	Sep. 30, 2020position
Debt and Equity Securities, FV-NI [Line Items]
Continuous loss position more than twelve months \| position		4		2
Gross realized gains on sales	$ 15,000
Gross realized losses on sales			$ 8,000
Debt Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Available for sale debt securities in loss position, depreciation percentage		96.93%
Debt Securities [Member] \| Downgraded Due To Potential Credit Losses [Member]
Debt and Equity Securities, FV-NI [Line Items]
Carrying Value Of Downgraded Due To Potential Credit Losses		$ 562,000
Debt Securities [Member] \| Downgraded Privately Issued Cmos [Member]
Debt and Equity Securities, FV-NI [Line Items]
Fair Market Value Of Downgraded Privately Issued Collateralized Mortgage Obligations		$ 580,000
Two Privately Issued Collateralized Mortgage Obligations [Member]
Debt and Equity Securities, FV-NI [Line Items]
Available for sale debt securities in loss position, depreciation percentage		1.86%
Privately-issued CMO
Debt and Equity Securities, FV-NI [Line Items]
Continuous loss position more than twelve months \| position		1		1
Investments, Fair Value Disclosure		$ 423,000
Total unrealized loss		$ 8,000
Privately-issued CMO \| Two Privately Issued Collateralized Mortgage Obligations [Member]
Debt and Equity Securities, FV-NI [Line Items]
Continuous loss position more than twelve months \| position		1
Privately-issued ABS
Debt and Equity Securities, FV-NI [Line Items]
Continuous loss position more than twelve months \| position		1

Loans and Allowance for Loan _3

Loans and Allowance for Loan Losses - Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Loans and Allowance for Loan Losses
Gross loans	$ 1,147,150	$ 1,109,416
Deferred loan origination fees and costs, net (2)	(1,383)	(2,327)
Allowance for loan losses	(17,419)	(17,026)
Loans, net	1,128,348	1,090,063
Commercial real estate [Member]
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(189)	(197)
Single tenant net lease
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(173)	(234)
Multifamily
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(48)	(37)
Residential Construction
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(27)	(28)
Commercial Construction
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(28)	(26)
Land and land development
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(10)	(11)
SBA commercial business
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(1,664)	(2,740)
Consumer
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	(21)	(23)
Commercial Business
Loans and Allowance for Loan Losses
Deferred loan origination fees and costs, net (2)	46	43
Pay Check Protection Program [Member]
Loans and Allowance for Loan Losses
Gross loans	159,300	180,600
Deferred loan origination fees and costs, net (2)	2,100	3,200
Real estate mortgage [Member] \| One To Four Family [Member]
Loans and Allowance for Loan Losses
Gross loans	205,129	191,781
Real estate mortgage [Member] \| Commercial real estate [Member]
Loans and Allowance for Loan Losses
Gross loans	141,122	141,522
Real estate mortgage [Member] \| Single tenant net lease
Loans and Allowance for Loan Losses
Gross loans	372,074	334,636
Real estate mortgage [Member] \| SBA
Loans and Allowance for Loan Losses
Gross loans	57,556	55,508
Real estate mortgage [Member] \| Multifamily
Loans and Allowance for Loan Losses
Gross loans	44,434	42,368
Real estate mortgage [Member] \| Residential Construction
Loans and Allowance for Loan Losses
Gross loans	5,389	9,361
Real estate mortgage [Member] \| Commercial Construction
Loans and Allowance for Loan Losses
Gross loans	9,193	6,941
Real estate mortgage [Member] \| Land and land development
Loans and Allowance for Loan Losses
Gross loans	10,894	9,403
Real estate mortgage [Member] \| SBA commercial business
Loans and Allowance for Loan Losses
Gross loans	182,167	206,807
Real estate mortgage [Member] \| Consumer
Loans and Allowance for Loan Losses
Gross loans	55,800	50,576
Real estate mortgage [Member] \| Commercial Business
Loans and Allowance for Loan Losses
Gross loans	$ 63,392	$ 60,513

Loans and Allowance for Loan _4

Loans and Allowance for Loan Losses - Components of Recorded Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Recorded Investment in Loans:
Principal loan balance	$ 1,147,150	$ 1,109,416
Accrued interest receivable	5,034	4,585
Net deferred loan origination fees and costs	(1,383)	(2,327)
Recorded investment in loans	1,150,801	1,111,674
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	13,425	16,684
Collectively evaluated for impairment	1,137,376	1,094,990
Ending balance	1,150,801	1,111,674
Residential real estate [Member]
Recorded Investment in Loans:
Principal loan balance	205,129	191,781
Accrued interest receivable	638	644
Net deferred loan origination fees and costs	(295)	(156)
Recorded investment in loans	205,472	192,269
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	3,663	5,359
Collectively evaluated for impairment	201,809	186,910
Ending balance	205,472	192,269
Commercial real estate [Member]
Recorded Investment in Loans:
Principal loan balance	141,122	141,522
Accrued interest receivable	601	812
Net deferred loan origination fees and costs	(189)	(197)
Recorded investment in loans	141,534	142,137
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,088	1,134
Collectively evaluated for impairment	140,446	141,003
Ending balance	141,534	142,137
Single tenant net lease
Recorded Investment in Loans:
Principal loan balance	372,074	334,636
Accrued interest receivable	1,242	1,198
Net deferred loan origination fees and costs	(173)	(234)
Recorded investment in loans	373,143	335,600
Recorded Investment in Loans as Evaluated for Impairment:
Collectively evaluated for impairment	373,143	335,600
Ending balance	373,143	335,600
SBA commercial real estate
Recorded Investment in Loans:
Principal loan balance	57,556	55,508
Accrued interest receivable	528	387
Net deferred loan origination fees and costs	1,026	1,082
Recorded investment in loans	59,110	56,977
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	5,386	6,927
Collectively evaluated for impairment	53,724	50,050
Ending balance	59,110	56,977
Multifamily
Recorded Investment in Loans:
Principal loan balance	44,434	42,368
Accrued interest receivable	122	139
Net deferred loan origination fees and costs	(48)	(37)
Recorded investment in loans	44,508	42,470
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	648	698
Collectively evaluated for impairment	43,860	41,772
Ending balance	44,508	42,470
Residential Construction
Recorded Investment in Loans:
Principal loan balance	5,389	9,361
Accrued interest receivable	7	25
Net deferred loan origination fees and costs	(27)	(28)
Recorded investment in loans	5,369	9,358
Recorded Investment in Loans as Evaluated for Impairment:
Collectively evaluated for impairment	5,369	9,358
Ending balance	5,369	9,358
Commercial Construction
Recorded Investment in Loans:
Principal loan balance	9,193	6,941
Accrued interest receivable	30	24
Net deferred loan origination fees and costs	(28)	(26)
Recorded investment in loans	9,195	6,939
Recorded Investment in Loans as Evaluated for Impairment:
Collectively evaluated for impairment	9,195	6,939
Ending balance	9,195	6,939
Land and land development
Recorded Investment in Loans:
Principal loan balance	10,894	9,403
Accrued interest receivable	26	20
Net deferred loan origination fees and costs	(10)	(11)
Recorded investment in loans	10,910	9,412
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	4	2
Collectively evaluated for impairment	10,906	9,410
Ending balance	10,910	9,412
Commercial Business
Recorded Investment in Loans:
Principal loan balance	63,392	60,513
Accrued interest receivable	185	186
Net deferred loan origination fees and costs	46	43
Recorded investment in loans	63,623	60,742
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,706	1,670
Collectively evaluated for impairment	61,917	59,072
Ending balance	63,623	60,742
SBA commercial business
Recorded Investment in Loans:
Principal loan balance	182,167	206,807
Accrued interest receivable	1,495	975
Net deferred loan origination fees and costs	(1,664)	(2,740)
Recorded investment in loans	181,998	205,042
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	768	695
Collectively evaluated for impairment	181,230	204,347
Ending balance	181,998	205,042
Consumer
Recorded Investment in Loans:
Principal loan balance	55,800	50,576
Accrued interest receivable	160	175
Net deferred loan origination fees and costs	(21)	(23)
Recorded investment in loans	55,939	50,728
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	162	199
Collectively evaluated for impairment	55,777	50,529
Ending balance	$ 55,939	$ 50,728

Loans and Allowance for Loan _5

Loans and Allowance for Loan Losses - Allowance For Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Sep. 30, 2020
Changes in Allowance for Loan Losses:
Beginning balance	$ 17,124	$ 10,530	$ 17,026	$ 10,040
Provisions	287	1,705	955	2,210
Charge-offs	(22)	(569)	(624)	(673)
Recoveries	30	25	62	114
Ending balance	17,419	11,691	17,419	11,691
Servicing Asset at Fair Value, Disposals	92	0	275	0
Ending Allowance Balance Attributable to Loans:
Individually evaluated for impairment					$ 574	$ 1,443
Collectively evaluated for impairment					16,845	15,583
Ending balance	17,124	11,691	17,026	10,040	17,419	17,026
Residential real estate [Member]
Changes in Allowance for Loan Losses:
Beginning balance	1,176	318	1,255	317
Provisions	442	54	363	78
Charge-offs		(4)	(5)	(36)
Recoveries	4	11	9	20
Ending balance	1,622	379	1,622	379
Ending Allowance Balance Attributable to Loans:
Individually evaluated for impairment					27	30
Collectively evaluated for impairment					1,595	1,225
Ending balance	1,176	379	1,255	317	1,622	1,255
Commercial real estate [Member]
Changes in Allowance for Loan Losses:
Beginning balance	3,007	2,595	3,058	2,540
Provisions	53	(2)	2	53
Charge-offs		(100)		(100)
Ending balance	3,060	2,493	3,060	2,493
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					3,060	3,058
Ending balance	3,007	2,493	3,058	2,540	3,060	3,058
Single tenant net lease
Changes in Allowance for Loan Losses:
Beginning balance	3,233	1,947	3,017	1,675
Provisions	116	(581)	332	(309)
Ending balance	3,349	1,366	3,349	1,366
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					3,349	3,017
Ending balance	3,233	1,366	3,017	1,675	3,349	3,017
SBA commercial real estate
Changes in Allowance for Loan Losses:
Beginning balance	3,624	2,282	4,154	2,293
Provisions	178	937	163	888
Charge-offs		(7)	(522)	(15)
Recoveries			7	46
Ending balance	3,802	3,212	3,802	3,212
Ending Allowance Balance Attributable to Loans:
Individually evaluated for impairment					501	1,366
Collectively evaluated for impairment					3,301	2,788
Ending balance	3,624	3,212	4,154	2,293	3,802	4,154
Multifamily
Changes in Allowance for Loan Losses:
Beginning balance	713	481	772	478
Provisions	97	18	38	21
Ending balance	810	499	810	499
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					810	772
Ending balance	713	499	772	478	810	772
Residential Construction
Changes in Allowance for Loan Losses:
Beginning balance	149	228	243	248
Provisions	(13)	(42)	(107)	(62)
Ending balance	136	186	136	186
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					136	243
Ending balance	149	186	243	248	136	243
Commercial Construction
Changes in Allowance for Loan Losses:
Beginning balance	212	57	181	67
Provisions	27	8	58	(2)
Ending balance	239	65	239	65
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					239	181
Ending balance	212	65	181	67	239	181
Land and land development
Changes in Allowance for Loan Losses:
Beginning balance	300	202	243	209
Provisions	(17)	1	40	(6)
Ending balance	283	203	283	203
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					283	243
Ending balance	300	203	243	209	283	243
Commercial Business
Changes in Allowance for Loan Losses:
Beginning balance	1,487	967	1,449	889
Provisions	45	674	82	747
Recoveries	4	1	5	6
Ending balance	1,536	1,642	1,536	1,642
Ending Allowance Balance Attributable to Loans:
Individually evaluated for impairment					5
Collectively evaluated for impairment					1,531	1,449
Ending balance	1,487	1,642	1,449	889	1,536	1,449
SBA commercial business
Changes in Allowance for Loan Losses:
Beginning balance	1,536	786	1,539	750
Provisions	3	555	(10)	591
Charge-offs		(396)		(396)
Recoveries	10		20
Ending balance	1,549	945	1,549	945
Ending Allowance Balance Attributable to Loans:
Individually evaluated for impairment					41	47
Collectively evaluated for impairment					1,508	1,492
Ending balance	1,536	945	1,539	750	1,549	1,539
Consumer
Changes in Allowance for Loan Losses:
Beginning balance	1,687	667	1,115	574
Provisions	(644)	83	(6)	211
Charge-offs	(22)	(62)	(97)	(126)
Recoveries	12	13	21	42
Ending balance	1,033	701	1,033	701
Ending Allowance Balance Attributable to Loans:
Collectively evaluated for impairment					1,033	1,115
Ending balance	$ 1,687	$ 701	$ 1,115	$ 574	$ 1,033	$ 1,115

Loans and Allowance for Loan _6

Loans and Allowance for Loan Losses - Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	$ 7,902		$ 7,902		$ 10,317
Loans with no related allowance recorded, Unpaid Principal Balance	8,961		8,961		10,915
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	11,358	$ 11,512	11,196	$ 11,195
Loans with no related allowance recorded, Interest Income Recognized	21	81	55	173
Loans with an allowance recorded, Recorded Investment	5,523		5,523		6,367
Loans with an allowance recorded, Unpaid Principal Balance	6,255		6,255		6,798
Loans with an allowance recorded, Related Allowance	574		574		1,443
Loans with an allowance recorded, Average Recorded Investment	4,268	5,789	5,112	4,793
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	13,425		13,425		16,684
Total, Unpaid Principal Balance	15,216		15,216		17,713
Total, Related Allowance	574		574		1,443
Total, Average Recorded Investment	15,606	17,301	16,308	15,988
Total, Interest Income Recognized	21	81	55	173
Residential real estate [Member]
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	3,491		3,491		5,185
Loans with no related allowance recorded, Unpaid Principal Balance	4,115		4,115		5,697
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	4,503	5,338	4,899	5,215
Loans with no related allowance recorded, Interest Income Recognized	11	34	38	61
Loans with an allowance recorded, Recorded Investment	172		172		174
Loans with an allowance recorded, Unpaid Principal Balance	175		175		175
Loans with an allowance recorded, Related Allowance	27		27		30
Loans with an allowance recorded, Average Recorded Investment	88	55	117	39
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	3,663		3,663		5,359
Total, Unpaid Principal Balance	4,290		4,290		5,872
Total, Related Allowance	27		27		30
Total, Average Recorded Investment	4,591	5,393	5,016	5,254
Total, Interest Income Recognized	11	34	38	61
Commercial real estate [Member]
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	1,088		1,088		1,134
Loans with no related allowance recorded, Unpaid Principal Balance	1,154		1,154		1,185
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	1,161	4,659	1,169	4,861
Loans with no related allowance recorded, Interest Income Recognized	9	35	15	80
Loans with an allowance recorded, Recorded Investment	0		0		0
Loans with an allowance recorded, Unpaid Principal Balance	0		0		0
Loans with an allowance recorded, Related Allowance	0		0		0
Loans with an allowance recorded, Average Recorded Investment	0	50		33
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	1,088		1,088		1,134
Total, Unpaid Principal Balance	1,154		1,154		1,185
Total, Related Allowance	0		0		0
Total, Average Recorded Investment	1,161	4,709	1,169	4,894
Total, Interest Income Recognized	9	35	15	80
Single tenant net lease
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	0		0		0
Loans with no related allowance recorded, Unpaid Principal Balance	0		0		0
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	0	0	0
Loans with no related allowance recorded, Interest Income Recognized	0	0	0
Loans with an allowance recorded, Recorded Investment	0		0		0
Loans with an allowance recorded, Unpaid Principal Balance	0		0		0
Loans with an allowance recorded, Related Allowance	0		0		0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	0		0		0
Total, Unpaid Principal Balance	0		0		0
Total, Related Allowance	0		0		0
Total, Average Recorded Investment	0	0
Total, Interest Income Recognized	0	0
SBA commercial real estate
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	593		593		1,245
Loans with no related allowance recorded, Unpaid Principal Balance	768		768		1,178
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	2,755	740	2,229	541
Loans with no related allowance recorded, Interest Income Recognized	0	12	0	29
Loans with an allowance recorded, Recorded Investment	4,793		4,793		5,682
Loans with an allowance recorded, Unpaid Principal Balance	5,415		5,415		6,086
Loans with an allowance recorded, Related Allowance	501		501		1,366
Loans with an allowance recorded, Average Recorded Investment	3,548	4,561	4,394	3,920
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	5,386		5,386		6,927
Total, Unpaid Principal Balance	6,183		6,183		7,264
Total, Related Allowance	501		501		1,366
Total, Average Recorded Investment	6,303	5,301	6,623	4,461
Total, Interest Income Recognized	0	12		29
Multifamily
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	648		648		698
Loans with no related allowance recorded, Unpaid Principal Balance	693		693		700
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	693	352	696	234
Loans with no related allowance recorded, Interest Income Recognized	0	0	0
Loans with an allowance recorded, Recorded Investment	0		0		0
Loans with an allowance recorded, Unpaid Principal Balance	0		0		0
Loans with an allowance recorded, Related Allowance	0		0		0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	648		648		698
Total, Unpaid Principal Balance	693		693		700
Total, Related Allowance	0		0		0
Total, Average Recorded Investment	693	352	696	234
Total, Interest Income Recognized	0	0
Residential Construction
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	0		0		0
Loans with no related allowance recorded, Unpaid Principal Balance	0		0		0
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	0	0	0
Loans with no related allowance recorded, Interest Income Recognized	0	0	0	0
Loans with an allowance recorded, Recorded Investment	0		0		0
Loans with an allowance recorded, Unpaid Principal Balance	0		0		0
Loans with an allowance recorded, Related Allowance	0	0	0	0	0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	0		0		0
Total, Unpaid Principal Balance	0		0		0
Total, Related Allowance	0	0	0	0	0
Total, Average Recorded Investment		0
Total, Interest Income Recognized	0
Commercial Construction
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	0		0		0
Loans with no related allowance recorded, Unpaid Principal Balance	0		0		0
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	0	0	0
Loans with no related allowance recorded, Interest Income Recognized	0	0	0
Loans with an allowance recorded, Recorded Investment	0		0		0
Loans with an allowance recorded, Unpaid Principal Balance	0		0		0
Loans with an allowance recorded, Related Allowance	0	0	0	0	0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	0		0		0
Total, Unpaid Principal Balance					0
Total, Related Allowance	0	0	0	0	0
Total, Average Recorded Investment	0	0
Land and land development
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	4		4		2
Loans with no related allowance recorded, Unpaid Principal Balance	1		1		1
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	1	1	1
Loans with no related allowance recorded, Interest Income Recognized	0	0	0
Loans with an allowance recorded, Recorded Investment	0		0		0
Loans with an allowance recorded, Unpaid Principal Balance	0		0		0
Loans with an allowance recorded, Related Allowance	0		0		0
Loans with an allowance recorded, Average Recorded Investment	0	0
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	4		4		2
Total, Unpaid Principal Balance	1		1		1
Total, Related Allowance	0		0		0
Total, Average Recorded Investment	1	1	1
Total, Interest Income Recognized	0	0
Commercial Business
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	1,701		1,701		1,670
Loans with no related allowance recorded, Unpaid Principal Balance	1,758		1,758		1,675
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	1,712	139	1,700	128
Loans with no related allowance recorded, Interest Income Recognized	1	0	1	1
Loans with an allowance recorded, Recorded Investment	5		5		0
Loans with an allowance recorded, Unpaid Principal Balance	5		5		0
Loans with an allowance recorded, Related Allowance	5		5		0
Loans with an allowance recorded, Average Recorded Investment	2	783	2	522
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	1,706		1,706		1,670
Total, Unpaid Principal Balance	1,763		1,763		1,675
Total, Related Allowance	5		5		0
Total, Average Recorded Investment	1,714	922	1,702	650
Total, Interest Income Recognized	1	0	1	1
SBA commercial business
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	322		322		322
Loans with no related allowance recorded, Unpaid Principal Balance	416		416		416
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	416	208	416	139
Loans with no related allowance recorded, Interest Income Recognized	0	0	0
Loans with an allowance recorded, Recorded Investment	446		446		373
Loans with an allowance recorded, Unpaid Principal Balance	553		553		399
Loans with an allowance recorded, Related Allowance	41		41		47
Loans with an allowance recorded, Average Recorded Investment	410	157	406	105
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	768		768		695
Total, Unpaid Principal Balance	969		969		815
Total, Related Allowance	41		41		47
Total, Average Recorded Investment	826	365	822	244
Total, Interest Income Recognized	0	0
Consumer
Loans and Allowance for Loan Losses
Loans with no related allowance recorded, Recorded Investment	55		55		61
Loans with no related allowance recorded, Unpaid Principal Balance	56		56		63
Loans with no related allowance recorded, Related Allowance	0		0		0
Loans with no related allowance recorded, Average Recorded Investment	97	75	86	77
Loans with no related allowance recorded, Interest Income Recognized	0	0	1	2
Loans with an allowance recorded, Recorded Investment	107		107		138
Loans with an allowance recorded, Unpaid Principal Balance	107		107		138
Loans with an allowance recorded, Related Allowance	0		0		0
Loans with an allowance recorded, Average Recorded Investment	220	183	193	174
Loans with an allowance recorded, Interest Income Recognized	0	0
Total, Recorded Investment	162		162		199
Total, Unpaid Principal Balance	163		163		201
Total, Related Allowance	0		0		$ 0
Total, Average Recorded Investment	317	258	279	251
Total, Interest Income Recognized	$ 0	$ 0	$ 1	$ 2

Loans and Allowance for Loan _7

Loans and Allowance for Loan Losses - Nonperforming Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Loans and Allowance for Loan Losses
Nonaccrual Loans	$ 11,406	$ 13,615
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	11,406	13,615
Residential real estate [Member]
Loans and Allowance for Loan Losses
Nonaccrual Loans	2,256	2,797
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	2,256	2,797
Commercial real estate [Member]
Loans and Allowance for Loan Losses
Nonaccrual Loans	650	685
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	650	685
Single tenant net lease
Loans and Allowance for Loan Losses
Nonaccrual Loans	0
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans		0
SBA commercial real estate
Loans and Allowance for Loan Losses
Nonaccrual Loans	5,386	6,927
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	5,386	6,927
Multifamily
Loans and Allowance for Loan Losses
Nonaccrual Loans	648	698
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	648	698
Residential Construction
Loans and Allowance for Loan Losses
Nonaccrual Loans	0
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans		0
Commercial Construction
Loans and Allowance for Loan Losses
Nonaccrual Loans	0
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans		0
Land and land development
Loans and Allowance for Loan Losses
Nonaccrual Loans	4	2
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	4	2
Commercial Business
Loans and Allowance for Loan Losses
Nonaccrual Loans	1,582	1,668
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	1,582	1,668
SBA commercial business
Loans and Allowance for Loan Losses
Nonaccrual Loans	768	695
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	768	695
Consumer
Loans and Allowance for Loan Losses
Nonaccrual Loans	112	143
Loans 90+ Days Past Due Still Accruing	0
Total Nonperforming Loans	$ 112	$ 143

Loans and Allowance for Loan _8

Loans and Allowance for Loan Losses - Aging of Recorded Investment in Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Loans and Allowance for Loan Losses
Total Past Due	$ 9,269	$ 7,528
Current	1,141,532	1,104,146
Recorded investment in loans	1,150,801	1,111,674
Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	1,988	2,471
Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	712	539
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	6,569	4,518
Residential real estate [Member]
Loans and Allowance for Loan Losses
Total Past Due	2,402	3,804
Current	203,070	188,465
Recorded investment in loans	205,472	192,269
Residential real estate [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	1,716	1,693
Residential real estate [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	480
Residential real estate [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	686	1,631
Commercial real estate [Member]
Loans and Allowance for Loan Losses
Total Past Due	738	794
Current	140,796	141,343
Recorded investment in loans	141,534	142,137
Commercial real estate [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	88	109
Commercial real estate [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Commercial real estate [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	650	685
Single tenant net lease
Loans and Allowance for Loan Losses
Total Past Due		0
Current	373,143	335,600
Recorded investment in loans	373,143	335,600
Single tenant net lease \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Single tenant net lease \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Single tenant net lease \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due		0
SBA commercial real estate
Loans and Allowance for Loan Losses
Total Past Due	4,888	1,874
Current	54,222	55,103
Recorded investment in loans	59,110	56,977
SBA commercial real estate \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
SBA commercial real estate \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	469	0
SBA commercial real estate \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	4,419	1,874
Multifamily
Loans and Allowance for Loan Losses
Total Past Due		0
Current	44,508	42,470
Recorded investment in loans	44,508	42,470
Multifamily \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Multifamily \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Multifamily \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due		0
Residential Construction
Loans and Allowance for Loan Losses
Total Past Due		0
Current	5,369	9,358
Recorded investment in loans	5,369	9,358
Residential Construction \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Residential Construction \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Residential Construction \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due		0
Commercial Construction
Loans and Allowance for Loan Losses
Total Past Due		0
Current	9,195	6,939
Recorded investment in loans	9,195	6,939
Commercial Construction \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Commercial Construction \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Commercial Construction \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due		0
Land and land development
Loans and Allowance for Loan Losses
Total Past Due	4	2
Current	10,906	9,410
Recorded investment in loans	10,910	9,412
Land and land development \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Land and land development \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Land and land development \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	4	2
Commercial Business
Loans and Allowance for Loan Losses
Total Past Due	157	63
Current	63,466	60,679
Recorded investment in loans	63,623	60,742
Commercial Business \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	120	63
Commercial Business \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
Commercial Business \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	37	0
SBA commercial business
Loans and Allowance for Loan Losses
Total Past Due	768	695
Current	181,230	204,347
Recorded investment in loans	181,998	205,042
SBA commercial business \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	373
SBA commercial business \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	0	0
SBA commercial business \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	768	322
Consumer
Loans and Allowance for Loan Losses
Total Past Due	312	296
Current	55,627	50,432
Recorded investment in loans	55,939	50,728
Consumer \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	64	233
Consumer \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	243	59
Consumer \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans and Allowance for Loan Losses
Total Past Due	$ 5	$ 4

Loans and Allowance for Loan _9

Loans and Allowance for Loan Losses - Recorded Investment in Loans by Risk Category (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Loans and Allowance for Loan Losses
Recorded investment in loans	$ 1,150,801	$ 1,111,674
Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	1,116,481	1,073,581
Special Mention [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	9,925	11,159
Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	20,886	26,807
Doubtful [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	3,509	127
Residential real estate [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	205,472	192,269
Residential real estate [Member] \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	202,664	188,707
Residential real estate [Member] \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	2,628	3,435
Residential real estate [Member] \| Doubtful [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	180	127
Commercial real estate [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	141,534	142,137
Commercial real estate [Member] \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	133,444	133,685
Commercial real estate [Member] \| Special Mention [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	4,108	4,112
Commercial real estate [Member] \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	3,982	4,340
Single tenant net lease
Loans and Allowance for Loan Losses
Recorded investment in loans	373,143	335,600
Single tenant net lease \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	373,143	335,600
SBA commercial real estate
Loans and Allowance for Loan Losses
Recorded investment in loans	59,110	56,977
SBA commercial real estate \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	41,698	38,124
SBA commercial real estate \| Special Mention [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	5,418	6,518
SBA commercial real estate \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	8,699	12,335
SBA commercial real estate \| Doubtful [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	3,295
Multifamily
Loans and Allowance for Loan Losses
Recorded investment in loans	44,508	42,470
Multifamily \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	43,860	41,772
Multifamily \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	648	698
Residential Construction
Loans and Allowance for Loan Losses
Recorded investment in loans	5,369	9,358
Residential Construction \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	5,369	9,358
Commercial Construction
Loans and Allowance for Loan Losses
Recorded investment in loans	9,195	6,939
Commercial Construction \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	9,195	6,939
Land and land development
Loans and Allowance for Loan Losses
Recorded investment in loans	10,910	9,412
Land and land development \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	10,906	9,410
Land and land development \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	4	2
Commercial Business
Loans and Allowance for Loan Losses
Recorded investment in loans	63,623	60,742
Commercial Business \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	61,728	58,707
Commercial Business \| Special Mention [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	149	235
Commercial Business \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	1,746	1,800
SBA commercial business
Loans and Allowance for Loan Losses
Recorded investment in loans	181,998	205,042
SBA commercial business \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	178,540	200,578
SBA commercial business \| Special Mention [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	250	294
SBA commercial business \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	3,174	4,170
SBA commercial business \| Doubtful [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	34
Consumer
Loans and Allowance for Loan Losses
Recorded investment in loans	55,939	50,728
Consumer \| Pass [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	55,934	50,701
Consumer \| Substandard [Member]
Loans and Allowance for Loan Losses
Recorded investment in loans	$ 5	$ 27

Loans and Allowance for Loan_10

Loans and Allowance for Loan Losses - Recorded Investment in Troubled Debt Restructurings by Class of Loan and Accrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Financing Receivable, Modifications [Line Items]
Accruing	$ 2,019	$ 3,069
Nonaccrual	5,978	6,794
Total	7,997	9,863
Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	1,407	2,562
Nonaccrual		116
Total	1,407	2,678
Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	438	449
Nonaccrual	489	512
Total	927	961
SBA commercial real estate
Financing Receivable, Modifications [Line Items]
Nonaccrual	3,296	3,800
Total	3,296	3,800
Multifamily
Financing Receivable, Modifications [Line Items]
Nonaccrual	648	698
Total	648	698
Commercial Business
Financing Receivable, Modifications [Line Items]
Accruing	124	2
Nonaccrual	1,545	1,668
Total	1,669	1,670
Consumer
Financing Receivable, Modifications [Line Items]
Accruing	50	56
Total	$ 50	$ 56

Loans and Allowance for Loan_11

Loans and Allowance for Loan Losses - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of Loans	1	2	1	2
Pre-Modification Principal Balance	$ 126	$ 4,930	$ 126	$ 4,930
Post-Modification Principal Balance	$ 126	$ 4,932	$ 126	$ 4,932
Residential real estate [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of Loans		1		1
Pre-Modification Principal Balance		$ 1,099		$ 1,099
Post-Modification Principal Balance		$ 1,100		$ 1,100
SBA commercial real estate
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of Loans		1		1
Pre-Modification Principal Balance		$ 3,831		$ 3,831
Post-Modification Principal Balance		$ 3,832		$ 3,832
Commercial business
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of Loans	1		1
Pre-Modification Principal Balance	$ 126		$ 126
Post-Modification Principal Balance	$ 126		$ 126

Loans and Allowance for Loan_12

Loans and Allowance for Loan Losses - Loan Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Loans and Allowance for Loan Losses
Balance, beginning of period	$ 3,722	$ 3,005	$ 3,748	$ 3,030
Servicing rights capitalized	746	329	1,072	551
Amortization	(175)	(250)	(376)	(467)
Direct write-offs	(92)	0	(275)	0
Change in valuation allowance	(79)	(193)	(47)	(223)
Balance, end of period	$ 4,122	$ 2,891	$ 4,122	$ 2,891

Loans and Allowance for Loan_13

Loans and Allowance for Loan Losses - Mortgage Servicing Rights (Details) - Mortgage Servicing Rights [Member]	6 Months Ended	12 Months Ended
	Mar. 31, 2021	Sep. 30, 2020
Discount rate	9.00%	9.25%
Maximum [Member]
Prepayment rate	79.65%	86.98%
Minimum [Member]
Prepayment rate	2.78%	2.99%
Weighted Average [Member]
Prepayment rate	10.09%	18.08%

Loans and Allowance for Loan_14

Loans and Allowance for Loan Losses - Mortgage Servicing Rights at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Balance, beginning of period	$ 3,722	$ 3,005	$ 3,748	$ 3,030
Servicing rights capitalized	746	329	1,072	551
Changes in fair value related to:
Balance, end of period	4,122	2,891	4,122	2,891
Mortgage Servicing Rights [Member]
Balance, beginning of period	31,510	3,254	21,703	934
Servicing rights capitalized	14,611	1,908	27,483	4,185
Changes in fair value related to:
Loan repayments	(2,733)	(145)	(4,549)	(184)
Changes in valuation model inputs or assumptions	1,857	(962)	608	(880)
Balance, end of period	$ 45,245	$ 4,055	$ 45,245	$ 4,055

Loans and Allowance for Loan_15

Loans and Allowance for Loan Losses - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020
Loans and Allowance for Loan Losses
Mortgage Loans in Process of Foreclosure, Amount	$ 796,000,000		$ 796,000,000		$ 1,300,000
Number of Loans	1,000	2,000	1,000	2,000
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 1,000		$ 1,000		1,000
Financing Receivable, Allowance for Credit Losses, Write-downs	22,000	$ 569,000	624,000	$ 673,000
Provision for loan losses	287,000	1,705,000	955,000	2,210,000
Payment extensions or loan forbearance agreements remaining amount	14,000,000		14,000,000
Impaired Financing Receivable, Unpaid Principal Balance	15,216,000		15,216,000		17,713,000
Revenue from Contract with Customer, Including Assessed Tax	1,500,000	106,000	2,400,000	96,000
Servicing Assets Valuation Allowance	79,000,000		79,000,000		32,000,000
Commercial real estate [Member]
Loans and Allowance for Loan Losses
Financing Receivable, Allowance for Credit Losses, Write-downs		$ 100,000		$ 100,000
Payment extensions or loan forbearance agreements remaining amount	10,000,000		10,000,000
Impaired Financing Receivable, Unpaid Principal Balance	1,154,000		1,154,000		1,185,000
Residential real estate [Member]
Loans and Allowance for Loan Losses
Number of Loans		1,000		1,000
Financing Receivable, Allowance for Credit Losses, Write-downs		$ 4,000	5,000	$ 36,000
Payment extensions or loan forbearance agreements remaining amount	3,800,000		3,800,000
Impaired Financing Receivable, Unpaid Principal Balance	4,290,000		4,290,000		5,872,000
Commercial Business
Loans and Allowance for Loan Losses
Payment extensions or loan forbearance agreements remaining amount	210,000		210,000
Impaired Financing Receivable, Unpaid Principal Balance	1,763,000		1,763,000		1,675,000
SBA
Loans and Allowance for Loan Losses
Impaired Financing Receivable, Unpaid Principal Balance	228,500,000	168,400,000	228,500,000	168,400,000	209,100,000
Financial Service Revenue	512,000	407,000	979,000	819,000
SBA \| Bank Servicing [Member]
Loans and Allowance for Loan Losses
Revenue from Contract with Customer, Including Assessed Tax	11,000	13,000	36,000	30,000
Troubled Debt Restructuring [Member]
Loans and Allowance for Loan Losses
Loans and Leases Receivable, Allowance, Covered	32,000		32,000		538,000
Financing Receivable, Allowance for Credit Losses, Write-downs	0	0	398,000	0
Provision for loan losses	0	$ 622,000	0	$ 622,000
Mortgage Servicing Rights [Member]
Loans and Allowance for Loan Losses
Impaired Financing Receivable, Unpaid Principal Balance	4,260,000,000		4,260,000,000		2,260,000,000
Escrow Balances Maintained with Foregoing Loan Servicing and Other Liabilities	$ 30,600,000		$ 30,600,000		$ 19,300,000

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Deposits
Noninterest-bearing demand deposits	$ 284,742	$ 242,673
NOW accounts	259,897	218,581
Money market accounts	170,467	143,867
Savings accounts	159,251	142,609
Retail time deposits	144,133	168,276
Brokered and reciprocal time deposits	77,006	132,070
Total deposits	$ 1,095,496	$ 1,048,076

Supplemental Disclosure for N_3

Supplemental Disclosure for Net Income Per Share - (Net income Per Share Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Basic Earnings:
Net income (loss) attributable to First Savings Financial Group, Inc. available to common shareholders	$ 10,487	$ (627)	$ 20,410	$ 2,812
Shares:
Weighted average common shares outstanding, basic	2,369,642	2,355,750	2,368,338	2,348,145
Net income (loss) per common share, basic	$ 4.43	$ (0.27)	$ 8.62	$ 1.20
Diluted Earnings:
Net income (loss) attributable to First Savings Financial Group, Inc. available to common shareholders	$ 10,487	$ (627)	$ 20,410	$ 2,812
Shares:
Weighted average common shares outstanding, basic	2,369,642	2,355,750	2,368,338	2,348,145
Add: Dilutive effect of outstanding options	16,363	21,440	15,264	29,220
Add: Dilutive effect of restricted stock	2,058	2,711	2,773	3,991
Weighted average common shares outstanding, as adjusted	2,388,063	2,379,901	2,386,375	2,381,356
Net income (loss) per common share, diluted	$ 4.39	$ (0.26)	$ 8.55	$ 1.18

Supplemental Disclosure for N_4

Supplemental Disclosure for Net Income Per Share - Additional Information (Details) - shares	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	0	0
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	24,313	22,158	26,713	19,158

Supplemental Disclosures of C_3

Supplemental Disclosures of Cash Flow Information - (Cash Flow Information) (Detail) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash payments for:
Interest	$ 4,170	$ 5,820
Income taxes (net of refunds received)	8,659	1,195
Noncash investing and financing activities:
Transfers from loans to other real estate owned	370
Noncash exercise of stock options	$ 48	$ 249

Fair Value Measurements and D_3

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Balances Of Financial Assets Measured At Fair Value On Recurring And Nonrecurring (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	$ 205,374		$ 201,965
Total loans held for sale	147,248		208,493
SBA loan servicing rights	4,122	$ 3,722	3,748	$ 2,891	$ 3,005	$ 3,030
Residential mortgage loans held for sale	1,128,348		1,090,063
Derivative assets (included in other assets)	5,924		15,163
Residential mortgage loan servicing rights, at fair value	45,245		21,703
Derivative liabilities (included in other liabilities)	72		1,827
U.S. agency bonds and notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	500
Agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	9,649		7,952
Agency CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	9,145		9,805
Privately-issued CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	858		958
Privately-issued ABS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	860		960
SBA certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	2,333		694
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	182,029		181,596
Residential Mortgage Loans Held For Sale Fair Value Option Not Elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale	43,189		54,913
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	205,374		201,965
Derivative assets (included in other assets)	5,924		15,163
Equity securities (included in other assets)	104		66
Residential mortgage loan servicing rights, at fair value	45,245		21,703
Derivative liabilities (included in other liabilities)	72		1,827
Recurring \| U.S. agency bonds and notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	500
Recurring \| Agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	9,649		7,952
Recurring \| Agency CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	9,145		9,805
Recurring \| Privately-issued CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	858		958
Recurring \| Privately-issued ABS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	860		960
Recurring \| SBA certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	2,333		694
Recurring \| Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	182,029		181,596
Recurring \| Residential mortgage loans held for sale - fair value option elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	147,248		208,493
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	12,851		15,241
Total other real estate owned	2,043		1,728
Nonrecurring \| Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	3,636		5,329
Nonrecurring \| Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	1,088		1,134
Nonrecurring \| SBA commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	4,885		5,561
Total other real estate owned	315
Nonrecurring \| Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	648		698
Nonrecurring \| Commercial Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	1,701		1,670
Nonrecurring \| Land and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	4		2
Nonrecurring \| Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	162		199
Nonrecurring \| Small Business Administration Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale	16,704		22,119
SBA loan servicing rights	4,122		3,748
Nonrecurring \| SBA commercial business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	727		648
Nonrecurring \| Former bank premises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other real estate owned	1,728		1,728
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
SBA loan servicing rights			0
Residential mortgage loans held for sale			0
Derivative assets (included in other assets)			0
Equity securities (included in other assets)	104		66
Derivative liabilities (included in other liabilities)			0
Level 1 \| Residential mortgage loans held for sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA loan servicing rights			0
Residential mortgage loans held for sale			0
Level 1 \| Residential Mortgage Loans Held For Sale Fair Value Option Not Elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale			0
Level 1 \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Derivative assets (included in other assets)			0
Equity securities (included in other assets)	104		66
Residential mortgage loan servicing rights, at fair value			0
Derivative liabilities (included in other liabilities)			0
Level 1 \| Recurring \| Agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 1 \| Recurring \| Agency CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 1 \| Recurring \| Privately-issued CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 1 \| Recurring \| Privately-issued ABS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 1 \| Recurring \| SBA certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 1 \| Recurring \| Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 1 \| Recurring \| Residential mortgage loans held for sale - fair value option elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale			0
Level 1 \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Total other real estate owned			0
Level 1 \| Nonrecurring \| Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| SBA commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Commercial Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Land and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Small Business Administration Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale			0
SBA loan servicing rights			0
Level 1 \| Nonrecurring \| SBA commercial business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 1 \| Nonrecurring \| Former bank premises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other real estate owned			0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	205,374		201,965
SBA loan servicing rights			0
Residential mortgage loans held for sale			0
Derivative assets (included in other assets)	5,662		226
Equity securities (included in other assets)			0
Derivative liabilities (included in other liabilities)	72		1,827
Level 2 \| Residential mortgage loans held for sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA loan servicing rights			0
Residential mortgage loans held for sale			263,519
Level 2 \| Residential Mortgage Loans Held For Sale Fair Value Option Not Elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale	43,189		54,913
Level 2 \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	205,374		201,965
Derivative assets (included in other assets)	5,662		226
Equity securities (included in other assets)			0
Residential mortgage loan servicing rights, at fair value			0
Derivative liabilities (included in other liabilities)	72		1,827
Level 2 \| Recurring \| U.S. agency bonds and notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	500
Level 2 \| Recurring \| Agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	9,649		7,952
Level 2 \| Recurring \| Agency CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	9,145		9,805
Level 2 \| Recurring \| Privately-issued CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	858		958
Level 2 \| Recurring \| Privately-issued ABS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	860		960
Level 2 \| Recurring \| SBA certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	2,333		694
Level 2 \| Recurring \| Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale	182,029		181,596
Level 2 \| Recurring \| Residential mortgage loans held for sale - fair value option elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	147,248		208,493
Level 2 \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Total other real estate owned			0
Level 2 \| Nonrecurring \| Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| SBA commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Commercial Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Land and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Small Business Administration Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale			22,119
SBA loan servicing rights			0
Level 2 \| Nonrecurring \| SBA commercial business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans			0
Level 2 \| Nonrecurring \| Former bank premises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other real estate owned			0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
SBA loan servicing rights	4,310		3,934
Residential mortgage loans held for sale	1,174,491		1,152,962
Derivative assets (included in other assets)	262		14,937
Equity securities (included in other assets)			0
Derivative liabilities (included in other liabilities)			0
Level 3 \| Residential mortgage loans held for sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SBA loan servicing rights			21,703
Residential mortgage loans held for sale			0
Level 3 \| Residential Mortgage Loans Held For Sale Fair Value Option Not Elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale			0
Level 3 \| Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Derivative assets (included in other assets)	262		14,937
Equity securities (included in other assets)			0
Residential mortgage loan servicing rights, at fair value	45,245		21,703
Derivative liabilities (included in other liabilities)			0
Level 3 \| Recurring \| Agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 3 \| Recurring \| Agency CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 3 \| Recurring \| Privately-issued CMO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 3 \| Recurring \| Privately-issued ABS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 3 \| Recurring \| SBA certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 3 \| Recurring \| Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total securities available for sale			0
Level 3 \| Recurring \| Residential mortgage loans held for sale - fair value option elected [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale			0
Level 3 \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	12,851		15,241
Total other real estate owned	2,043		1,728
Level 3 \| Nonrecurring \| Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	3,636		5,329
Level 3 \| Nonrecurring \| Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	1,088		1,134
Level 3 \| Nonrecurring \| SBA commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	4,885		5,561
Total other real estate owned	315
Level 3 \| Nonrecurring \| Multifamily
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	648		698
Level 3 \| Nonrecurring \| Commercial Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	1,701		1,670
Level 3 \| Nonrecurring \| Land and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	4		2
Level 3 \| Nonrecurring \| Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	162		199
Level 3 \| Nonrecurring \| Small Business Administration Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total loans held for sale	16,704		0
SBA loan servicing rights	4,122		3,748
Level 3 \| Nonrecurring \| SBA commercial business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	727		648
Level 3 \| Nonrecurring \| Former bank premises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total other real estate owned	$ 1,728		$ 1,728

Fair Value Measurements and D_4

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Reconciliation of derivative Assets measured on a Recurring Basis, Unobservable Input (Level 3) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Fair Value Measurements and Disclosures about Fair Value of Financial Instruments
Beginning balance	$ 11,415,000	$ 2,921,000	$ 14,937,000	$ 3,269,000
Unrealized gains/(losses) recognized in earnings, net of settlements	(11,153,000)	2,757,000	(14,675,000)	2,409,000
Ending balance	$ 262,000	$ 5,678,000	$ 262,000	$ 5,678,000

Fair Value Measurements and D_5

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Significant unobservable inputs (Level 3) used in the valuation of assets measured at fair value on a recurring basis (Details) - Interest rate lock commitments	Mar. 31, 2021	Sep. 30, 2020
Pull-through rate [Member] \| Minimum [Member]
Fixed interest rate	57.00%	0.00%
Pull-through rate [Member] \| Maximum [Member]
Fixed interest rate	100.00%	100.00%
Pull-through rate [Member] \| Weighted Average [Member]
Fixed interest rate	87.00%	80.00%
Direct costs to close [Member] \| Minimum [Member]
Fixed interest rate	0.34%	0.31%
Direct costs to close [Member] \| Maximum [Member]
Fixed interest rate	1.55%	1.01%
Direct costs to close [Member] \| Weighted Average [Member]
Fixed interest rate	0.78%	0.52%

Fair Value Measurements and D_6

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Summary of Aggregate Fair Value and the Aggregate Remaining Principal Balance for Residential Mortgage Loans Held for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Fair Value Measurements and Disclosures about Fair Value of Financial Instruments
Residential mortgage loans held for sale Aggregate Fair Value	$ 147,248	$ 208,493
Residential mortgage loans held for sale Aggregate Principal Balance	144,877	198,138
Residential mortgage loans held for sale Difference	$ 2,371	$ 10,355

Fair Value Measurements and D_7

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Summary of Gains and Losses and Interest Included in Earnings Related to Financial Assets Measured at Fair Value Under the Fair Value Options (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Total gains and interest included in earnings	$ (6,986)	$ 1,897	$ 3,455	$ 4,952
Interest income [Member]
Interest income	1,431	917	3,264	1,596
Mortgage Banking [Member]
Gains (losses) - included in mortgage banking income	$ (8,417)	$ 980	$ 191	$ 3,356

Fair Value Measurements and D_8

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Summary of fair value of loans measured using an entry price notion (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019
Financial assets:
Cash and due from banks	$ 13,040		$ 12,807
Interest-bearing deposits with banks	17,797		20,919
Securities available for sale, at fair value	205,374		201,965
Securities held to maturity	1,957		2,102
Loans, net	1,128,348		1,090,063
SBA loan servicing rights	4,122	$ 3,722	3,748	$ 2,891	$ 3,005	$ 3,030
Derivative assets (included in other assets)	5,924		15,163
Financial liabilities:
Deposits	1,095,496		1,048,076
Borrowings from FHLB	289,237		310,858
Accrued interest payable	866		683
Advance payments by borrowers for taxes and insurance	1,488		2,615
Derivative liabilities (included in other liabilities)	72		1,827
Level 1
Financial assets:
Cash and due from banks	13,040		12,807
Interest-bearing deposits with banks	17,797		20,919
Interest-bearing time deposits			0
Securities available for sale, at fair value			0
Securities held to maturity			0
Loans, net			0
FRB and FHLB stock			0
Accrued interest receivable			0
SBA loan servicing rights			0
Derivative assets (included in other assets)			0
Equity securities (included in other assets)	104		66
Financial liabilities:
Deposits			0
Borrowings from FHLB			0
Subordinated note			0
Federal Reserve PPPLF Borrowings			0
Accrued interest payable			0
Advance payments by borrowers for taxes and insurance			0
Derivative liabilities (included in other liabilities)			0
Level 1 \| Small Business Administration Loans [Member]
Financial assets:
Loans, net			0
Level 1 \| Residential mortgage loans held for sale [Member]
Financial assets:
Loans, net			0
SBA loan servicing rights			0
Level 2
Financial assets:
Cash and due from banks			0
Interest-bearing deposits with banks			0
Interest-bearing time deposits	2,474		2,964
Securities available for sale, at fair value	205,374		201,965
Securities held to maturity	2,219		2,385
Residential mortgage loans held for sale	190,437
Loans, net			0
FRB and FHLB stock			0
Accrued interest receivable	6,877		6,462
SBA loan servicing rights			0
Derivative assets (included in other assets)	5,662		226
Equity securities (included in other assets)			0
Financial liabilities:
Deposits			0
Borrowings from FHLB	291,110		310,766
Subordinated note	23,638		23,788
Federal Reserve PPPLF Borrowings	128,475		174,808
Accrued interest payable	866		683
Advance payments by borrowers for taxes and insurance	1,488		2,615
Derivative liabilities (included in other liabilities)	72		1,827
Level 2 \| Small Business Administration Loans [Member]
Financial assets:
Loans, net			24,666
Level 2 \| Residential mortgage loans held for sale [Member]
Financial assets:
Loans, net			263,519
SBA loan servicing rights			0
Level 3
Financial assets:
Cash and due from banks			0
Interest-bearing deposits with banks			0
Interest-bearing time deposits			0
Securities available for sale, at fair value			0
Securities held to maturity			0
SBA loans held for sale	18,917
Loans, net	1,174,491		1,152,962
FRB and FHLB stock			0
Accrued interest receivable			0
SBA loan servicing rights	4,310		3,934
Residential mortgage loan servicing rights (included in other assets)	45,245
Derivative assets (included in other assets)	262		14,937
Equity securities (included in other assets)			0
Financial liabilities:
Deposits	1,096,481		1,050,569
Borrowings from FHLB			0
Subordinated note			0
Federal Reserve PPPLF Borrowings			0
Accrued interest payable			0
Advance payments by borrowers for taxes and insurance			0
Derivative liabilities (included in other liabilities)			0
Level 3 \| Small Business Administration Loans [Member]
Financial assets:
Loans, net			0
Level 3 \| Residential mortgage loans held for sale [Member]
Financial assets:
Loans, net			0
SBA loan servicing rights			21,703
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and due from banks	13,040		12,807
Interest-bearing deposits with banks	17,797		20,919
Interest-bearing time deposits	2,474		2,964
Securities available for sale, at fair value	205,374		201,965
Securities held to maturity	1,957		2,102
Residential mortgage loans held for sale	190,437
SBA loans held for sale	16,704
Loans, net	1,128,348		1,090,063
FRB and FHLB stock	19,258		17,293
Accrued interest receivable	6,877		6,462
SBA loan servicing rights	4,122		3,748
Residential mortgage loan servicing rights (included in other assets)	45,245
Derivative assets (included in other assets)	5,924		15,163
Equity securities (included in other assets)	104		66
Financial liabilities:
Deposits	1,095,496		1,048,076
Borrowings from FHLB	289,237		310,858
Subordinated note	19,831		19,797
Federal Reserve PPPLF Borrowings	128,494		174,834
Accrued interest payable	866		683
Advance payments by borrowers for taxes and insurance	1,488		2,615
Derivative liabilities (included in other liabilities)	$ 72		1,827
Estimate of Fair Value Measurement [Member] \| Small Business Administration Loans [Member]
Financial assets:
Loans, net			22,119
Estimate of Fair Value Measurement [Member] \| Residential mortgage loans held for sale [Member]
Financial assets:
Loans, net			263,406
SBA loan servicing rights			$ 21,703

Fair Value Measurements and D_9

Fair Value Measurements and Disclosures about Fair Value of Financial Instruments - Additional information (Details)	3 Months Ended			6 Months Ended		12 Months Ended
	Mar. 31, 2021USD ($)	Dec. 31, 2020	Mar. 31, 2020USD ($)	Mar. 31, 2021USD ($)item	Mar. 31, 2020USD ($)	Sep. 30, 2020item
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing Number Of Loans Less than Thousand \| item				0		0
Impairment charges on loan	$ 79,000		$ 193,000	$ 47,000	$ 223,000
Impaired Loans [Member]
Foreclosed Real Estate Expense	$ 267,000		$ 1,800,000	$ 267,000	$ 1,900,000
Maximum [Member]
Other real estate owned discount (in percent)	30.9			30.9
Maximum [Member] \| Collateral [Member] \| Discount rate
Fair value inputs discount rate				6.00%		12.00%
Maximum [Member] \| Impaired Loans [Member] \| Discount rate
Fair value inputs discount rate				100.00%		75.00%
Maximum [Member] \| SBA \| Discount rate
Discount rate		21.06%				19.68%
Maximum [Member] \| SBA \| Prepayment rate
Prepayment rate		25.60%				26.68%
Minimum [Member]
Other real estate owned discount (in percent)	10.9			10.9
Minimum [Member] \| Collateral [Member] \| Discount rate
Fair value inputs discount rate				0.00%		0.00%
Minimum [Member] \| Impaired Loans [Member] \| Discount rate
Fair value inputs discount rate				0.00%		0.00%
Minimum [Member] \| SBA \| Discount rate
Discount rate		4.94%				3.58%
Minimum [Member] \| SBA \| Prepayment rate
Prepayment rate		8.52%				8.69%
Weighted Average [Member]
Other real estate owned discount (in percent)	28.4			28.4		30.9
Weighted Average [Member] \| SBA \| Discount rate
Discount rate		9.21%				8.36%
Weighted Average [Member] \| SBA \| Prepayment rate
Prepayment rate		17.13%				17.46%

Employee Stock Ownership Plan (

Employee Stock Ownership Plan (Details) - $ / shares	Oct. 06, 2008	Mar. 31, 2021	Sep. 30, 2020
Employee Stock Ownership Plan
Total ESOP shares	203,363	117,914	119,654
Employee stock ownership plan (per share)	$ 10

Stock Based Compensation Plan_2

Stock Based Compensation Plans - Fair Value Of Options Granted (Details)	6 Months Ended
	Mar. 31, 2021$ / shares
Stock Based Compensation Plans
Expected dividend yield	1.75%
Risk-free interest rate	2.13%
Expected volatility	14.60%
Expected life of options	7 years 6 months
Weighted average fair value at grant date	$ 6.13

Stock Based Compensation Plan_3

Stock Based Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Number of Shares
Outstanding at beginning of period			68,403
Granted			7,555
Exercised	(100)	(21,861)	(1,300)	(28,361)
Forfeited or expired			(600)
Outstanding at end of period	74,058		74,058
Vested and expected to vest	74,058		74,058
Exercisable at end of period	42,108		42,108
Weighted Average Exercise Price
Outstanding at beginning of period			$ 48.11
Granted			63.30
Exercised			40.09
Forfeited or expired			40.09
Outstanding at end of period	$ 49.86		49.86
Vested and expected to vest	49.86		49.86
Outstanding at end of period	$ 44.04		$ 44.04
Weighted Average Remaining Contractual Term (Years)
Exercisable at end of period			6 years 8 months 12 days
Vested and expected to vest			6 years 8 months 12 days
Exercisable at end of period			6 years
Aggregate Intrinsic Value
Outstanding at end of period	$ 1,260		$ 1,260
Vested and expected to vest	1,260		1,260
Exercisable at end of period	$ 976		$ 976

Stock Based Compensation Plan_4

Stock Based Compensation Plans - Nonvested Restricted Shares (Details) - Restricted Stock [Member] - $ / shares	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Number of Shares
Nonvested	10,808
Vested	(4,375)	(4,086)
Forfeited	(200)
Nonvested	6,233
Weighted Average Grant Date Fair Value
Nonvested	$ 48.04
Vested	44.77
Forfeited	40.09
Nonvested	$ 50.59

Stock Based Compensation Plan_5

Stock Based Compensation Plans - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Aggregated number of shares in stock options	0		0
Proceeds from exercise of stock options			$ 4,000	$ 148,000
Equity Incentive Plan 2016 [Member]
Aggregated number of shares in stock options	88,000		88,000
Incentive stock options granted			$ 100,000
Common stock available under incentive plan			500
Employee Stock Option [Member]
Unrecognized compensation expenses related to nonvested stock options	$ 158,000		$ 158,000
Weighted average period (in years)			2 years 11 months 26 days
Compensation expense	$ 23,000	$ 22,000	$ 46,000	42,000
Intrinsic value of stock options exercised			31,000	1,400,000
Proceeds from exercise of stock options			4,000	148,000
Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense)			$ 5,000	$ 134,000
Employee Stock Option [Member] \| Equity Incentive Plan 2016 [Member]
Aggregated number of shares in stock options	66,000		66,000
Common stock available under incentive plan			300
Restricted Stock [Member]
Restricted shares vested			4,375	4,086
Fair value of restricted shares			$ 277,000	$ 271,000
Unrecognized compensation expenses related to nonvested stock options	$ 245,000		$ 245,000
weighted average period of compensation expense (in years)			2 years 2 months 8 days
Compensation expense	$ 47,000	$ 49,000	$ 95,000	$ 96,000
Restricted Stock [Member] \| Equity Incentive Plan 2016 [Member]
Aggregated number of shares in stock options	22,000		22,000
Common stock available under incentive plan			200

Derivative Financial Instrume_3

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Notional Amount	$ 958,795	$ 1,399,421
Asset Derivatives	5,924	15,163
Derivative liabilities	72	1,827
Interest rate lock commitments
Notional Amount	501,695	793,671
Asset Derivatives	262	14,937
Forward mortgage loan sale contracts
Notional Amount	457,100	605,750
Asset Derivatives	5,662	226
Derivative liabilities	$ 72	$ 1,827

Derivative Financial Instrume_4

Derivative Financial Instruments - Income (loss) Related To Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Income (loss) related to derivative financial instruments	$ 7,824	$ (7,623)	$ (3,061)	$ (8,408)
Interest rate lock commitments
Income (loss) related to derivative financial instruments	(11,153)	2,757	(14,675)	2,409
Forward mortgage loan sale contracts
Income (loss) related to derivative financial instruments	$ 18,977	$ (10,380)	$ 11,614	$ (10,817)

Derivative Financial Instrume_5

Derivative Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2021	Sep. 30, 2020
Derivative Financial Instruments
Cash collateral derivative counterparty obligations	$ 1.7	$ 3

Regulatory Capital - Bank's Act

Regulatory Capital - Bank's Actual Capital Amounts And Ratios (Details) $ in Thousands	Mar. 31, 2021USD ($)	Sep. 30, 2020USD ($)
Consolidated
Total capital (to risk weighted assets) Actual Amount	$ 188,352	$ 168,617
Tier 1 capital (to risk-weighted assets) Actual Amount	151,517	133,520
Common equity tier 1 capital (to risk-weighted assets) Actual Amount	151,517	133,520
Tier 1 capital (to average adjusted total assets) Actual Amount	$ 151,517	$ 133,520
Total capital (to risk weighted assets) Actual Ratio	13.82	13.37
Tier 1 capital (to risk-weighted assets) Actual Ratio	11.12	10.58
Common equity tier 1 capital (to risk-weighted assets) Actual Ratio	11.12%	10.58%
Tier 1 capital (to average adjusted total assets) Actual Ratio	9.36	8.53
Total capital (to risk weighted assets) Minimum For Capital Adequacy Purposes Amount	$ 108,998	$ 100,929
Tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Amount	81,748	75,697
Common equity tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Amount	61,311	56,773
Tier 1 capital (to average adjusted total assets) Minimum For Capital Adequacy Purposes Amount	$ 64,719	$ 62,617
Total capital (to risk weighted assets) Minimum For Capital Adequacy Purposes Ratio	8	8
Tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Ratio	6	6
Common equity tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Ratio	4.50%	4.50%
Tier 1 capital (to average adjusted total assets) Minimum For Capital Adequacy Purposes Ratio	4	4
Bank [Member]
Total capital (to risk weighted assets) Actual Amount	$ 180,839	$ 160,452
Tier 1 capital (to risk-weighted assets) Actual Amount	163,835	145,152
Common equity tier 1 capital (to risk-weighted assets) Actual Amount	163,835	145,152
Tier 1 capital (to average adjusted total assets) Actual Amount	$ 163,835	$ 145,152
Total capital (to risk weighted assets) Actual Ratio	13.30	12.75
Tier 1 capital (to risk-weighted assets) Actual Ratio	12.05	11.53
Common equity tier 1 capital (to risk-weighted assets) Actual Ratio	12.05%	11.53%
Tier 1 capital (to average adjusted total assets) Actual Ratio	10.22	9.37
Total capital (to risk weighted assets) Minimum For Capital Adequacy Purposes Amount	$ 108,794	$ 100,672
Tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Amount	81,596	75,504
Common equity tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Amount	61,197	56,428
Tier 1 capital (to average adjusted total assets) Minimum For Capital Adequacy Purposes Amount	$ 64,103	$ 61,966
Total capital (to risk weighted assets) Minimum For Capital Adequacy Purposes Ratio	8	8
Tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Ratio	6	6
Common equity tier 1 capital (to risk-weighted assets) Minimum For Capital Adequacy Purposes Ratio	4.50%	4.50%
Tier 1 capital (to average adjusted total assets) Minimum For Capital Adequacy Purposes Ratio	4	4
Total capital (to risk weighted assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 135,993	$ 125,840
Tier 1 capital (to risk-weighted assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	108,794	100,672
Common equity tier 1 capital (to risk-weighted assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	88,395	81,796
Tier 1 capital (to average adjusted total assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 80,129	$ 77,458
Total capital (to risk weighted assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10	10
Tier 1 capital (to risk-weighted assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	8	8
Common equity tier 1 capital (to risk-weighted assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.50%	6.50%
Tier 1 capital (to average adjusted total assets) Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5	5

Regulatory Capital - Additional

Regulatory Capital - Additional Information (Details) - USD ($) $ in Billions	6 Months Ended
	Mar. 31, 2021	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2015
Regulatory Capital
Capital Conservation Buffer, Percentage	2.50%	2.50%	2.50%	0.00%
Maximum amount to attain consolidated capital requirements	$ 3

Segment Reporting - Financial S

Segment Reporting - Financial Statements Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021USD ($)	Mar. 31, 2020USD ($)	Mar. 31, 2021USD ($)segment	Mar. 31, 2020USD ($)	Sep. 30, 2020USD ($)
Number of operating segments \| segment			3
Net interest income (loss)	$ 14,780	$ 10,771	$ 28,519	$ 21,557
Provision for loan losses	287	1,705	955	2,210
Net interest income (loss) after provision	14,493	9,066	27,564	19,347
Net gains on sales of loans, SBA	3,239	1,229	4,506	1,990
Mortgage banking income	32,398	8,411	74,698	24,334
Noninterest income	38,973	11,133	85,156	29,365
Noninterest expense (income)	39,284	22,075	83,686	46,347
Income (loss) before taxes	14,182	(1,876)	29,034	2,365
Income tax expense	3,695	(774)	8,222	(136)
Segment profit (loss)	10,487	(1,102)	20,812	2,501
Non cash items:
Depreciation and amortization	584	352	1,132	761
Segment assets	1,750,609	1,368,252	1,750,609	1,368,252	$ 1,764,625
Core Banking Segment [Member]
Net interest income (loss)	11,422	9,335	22,587	18,644
Provision for loan losses	106	216	808	736
Net interest income (loss) after provision	11,316	9,119	21,779	17,908
Net gains on sales of loans, SBA		0
Mortgage banking income	2	3		4
Noninterest income	1,490	1,411	3,042	2,802
Noninterest expense (income)	9,224	6,809	17,510	14,002
Income (loss) before taxes	3,582	3,721	7,311	6,708
Income tax expense	633	801	1,322	1,317
Segment profit (loss)	2,949	2,920	5,989	5,391
Non cash items:
Depreciation and amortization	493	279	954	621
Segment assets	1,489,670	1,197,685	1,489,670	1,197,685
SBA Lending Segment [Member]
Net interest income (loss)	3,227	1,151	5,374	2,368
Provision for loan losses	181	1,489	147	1,474
Net interest income (loss) after provision	3,046	(338)	5,227	894
Net gains on sales of loans, SBA	3,239	1,229	4,506	1,990
Mortgage banking income		0
Noninterest income	3,407	1,209	4,792	2,138
Noninterest expense (income)	2,449	1,841	5,195	3,666
Income (loss) before taxes	4,004	(970)	4,824	(634)
Income tax expense	1,005	(124)	1,110	(81)
Segment profit (loss)	2,999	(846)	3,714	(553)
Non cash items:
Depreciation and amortization	12	14	23	27
Segment assets	257,566	106,296	257,566	106,296
Mortgage Banking Segment [Member]
Net interest income (loss)	439	585	1,170	1,142
Provision for loan losses		0
Net interest income (loss) after provision	439	585	1,170	1,142
Net gains on sales of loans, SBA		0
Mortgage banking income	32,396	8,408	74,698	24,330
Noninterest income	34,076	8,513	77,322	24,425
Noninterest expense (income)	27,844	13,514	61,388	28,852
Income (loss) before taxes	6,671	(4,416)	17,104	(3,285)
Income tax expense	2,183	(1,241)	6,035	(976)
Segment profit (loss)	4,488	(3,175)	11,069	(2,309)
Non cash items:
Depreciation and amortization	62	42	121	79
Segment assets	246,144	161,134	246,144	161,134
Other Segment [Member]
Net interest income (loss)	(308)	(300)	(612)	(597)
Provision for loan losses		0
Net interest income (loss) after provision	(308)	(300)	(612)	(597)
Net gains on sales of loans, SBA		0
Mortgage banking income		0
Noninterest income		0
Noninterest expense (income)	(233)	(89)	(407)	(173)
Income (loss) before taxes	(75)	(211)	(205)	(424)
Income tax expense	(126)	(210)	(245)	(396)
Segment profit (loss)	51	(1)	40	(28)
Non cash items:
Depreciation and amortization	17	17	34	34
Segment assets	$ (242,771)	$ (96,863)	$ (242,771)	$ (96,863)

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Sources of Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Revenue from contracts with customers	$ 1,238	$ 1,079	$ 2,423	$ 2,144
Gain on sale of securities		7		7
Gain on sale of SBA loans	3,239	1,229	4,506	1,990
Mortgage banking income	32,398	8,411	74,698	24,334
Increase in cash value of life insurance	174	194	360	356
Real estate lease income	149	152	296	303
Loan servicing and other income	1,775	61	2,873	231
Other noninterest income	37,735	10,054	82,733	27,221
Total noninterest income	38,973	11,133	85,156	29,365
Service charges on deposit accounts
Revenue from contracts with customers	328	441	724	950
ATM and interchange fees
Revenue from contracts with customers	513	524	1,145	1,027
Investment advisory income
Revenue from contracts with customers	365	83	499	110
Other
Revenue from contracts with customers	$ 32	$ 31	$ 55	$ 57

Leases (Details)

Leases (Details) - USD ($)	3 Months Ended		6 Months Ended
Leases (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020
Lessee, Lease, Description [Line Items]
ROU asset	$ 7,500,000		$ 7,500,000		$ 7,900,000
Location of ROU asset	us-gaap:OtherAssetsMember		us-gaap:OtherAssetsMember
Lease liability	$ 7,624,000		$ 7,624,000		$ 8,000,000
Location of lease liability	us-gaap:OtherLiabilitiesMember		us-gaap:OtherLiabilitiesMember
Lease expense	$ 495,000	$ 490,000	$ 1,000,000	$ 900,000
Operating lease ,Existence of option to extend			true
Minimum [Member]
Lessee, Lease, Description [Line Items]
Renewal term	1 year		1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Renewal term	20 years		20 years

Leases - Components of lease ex

Leases - Components of lease expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Leases
Operating lease cost	$ 260	$ 295	$ 634	$ 585
Short-term lease cost	235	195	412	315
Total operating lease cost	$ 495	$ 490	$ 1,046	$ 900

Leases - Future minimum commitm

Leases - Future minimum commitments due (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Leases
2021 (remaining six months)	$ 665
2022	1,215
2023	882
2024	790
2025	540
Thereafter	5,479
Total lease payments	9,571
Less imputed interest	(1,947)
Total	$ 7,624	$ 8,000

Leases - Lease term, discount r

Leases - Lease term, discount rate and supplemental cash flow information (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020
Leases
Weighted-average remaining lease term (years)	18 years 8 months 12 days		22 years 7 months 6 days
Weighted-average discount rate	2.27%		2.75%
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 710	$ 524
ROU assets obtained in exchange for lease obligations:
Operating leases	$ 2,037	$ 7,506

Mortgage Banking Income (Detail

Mortgage Banking Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Mortgage Banking Income (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Mortgage Banking Income
Origination and sale of mortgage loans (1)	$ 19,367	$ 14,363	$ 62,103	$ 28,989
Net change in fair value of loans held for sale and interest rate lock commitments	(19,570)	3,736	(21,987)	3,272
Realized and unrealized hedging gains (losses)	18,977	(10,380)	11,614	(10,817)
Capitalized residential mortgage loan servicing rights	14,611	1,908	27,483	4,185
Net change in fair value of residential mortgage loan servicing rights	(876)	(1,107)	(3,941)	(1,064)
Provisions for loan repurchases and indemnifications	(111)	(109)	(574)	(231)
Total mortgage banking income	$ 32,398	$ 8,411	$ 74,698	$ 24,334