Timberland Bancorp (TSBK) 10-Q 8 Feb 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Dec. 31, 2017	Feb. 01, 2018
Document and Entity Information
Entity Registrant Name	TIMBERLAND BANCORP INC,
Entity Central Index Key	1,046,050
Current Fiscal Year End Date	--09-30
Entity Filer Category	Smaller Reporting Company
Document Type	10-Q
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		7,378,127

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Cash and cash equivalents:
Cash and due from financial institutions	$ 16,952	$ 17,447	[1]
Interest-bearing deposits in banks	149,255	130,741	[1]
Total cash and cash equivalents	166,207	148,188	[1]
Certificates of deposit (“CDs”) held for investment (at cost, which approximates fair value)	53,528	43,034	[1]
Investment securities held to maturity, at amortized cost (estimated fair value $7,609 and $7,744)	7,077	7,139	[1]
Investment securities available for sale, at fair value	1,221	1,241	[1]
Federal Home Loan Bank of Des Moines (“FHLB”) stock	1,107	1,107	[1]
Other investments, at cost	3,000	3,000	[1]
Loans held for sale	3,407	3,599	[1]
Loans receivable, net of allowance for loan losses of $9,565 and $9,553	705,268	690,364	[1]
Premises and equipment, net	18,307	18,418	[1]
Other real estate owned (“OREO”) and other repossessed assets, net	2,887	3,301	[1]
Accrued interest receivable	2,743	2,520	[1]
Bank owned life insurance (“BOLI”)	19,402	19,266	[1]
Goodwill	5,650	5,650	[1]
Mortgage servicing rights (“MSRs”), net	1,871	1,825	[1]
Other assets	2,220	3,372	[1]
Total assets	993,895	952,024	[1]
Deposits:
Non-interest-bearing demand	210,108	205,952	[1]
Interest-bearing	665,966	631,946	[1]
Total deposits	876,074	837,898	[1]
Other liabilities and accrued expenses	3,709	3,126	[1]
Total liabilities	879,783	841,024	[1]
Shareholders’ equity
Preferred stock, $.01 par value; 1,000,000 shares authorized; none issued	0	0	[2]
Common stock, $.01 par value; 50,000,000 shares authorized; 7,367,327 shares issued and outstanding - December 31, 2017 7,361,077 shares issued and outstanding - September 30, 2017	13,540	13,286	[2]
Unearned shares issued to Employee Stock Ownership Plan (“ESOP”)	(331)	(397)	[2]
Retained earnings	101,039	98,235	[2]
Accumulated other comprehensive loss	(136)	(124)	[2]
Total shareholders’ equity	114,112	111,000	[2]
Total liabilities and shareholders’ equity	$ 993,895	$ 952,024	[2]
[1]	Derived from audited consolidated financial statements.
[2]	Derived from audited consolidated financial statements.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Statement of Financial Position [Abstract]
Investments securities held to maturity, estimated fair value	$ 7,609	$ 7,744
Allowance for loan losses	$ 9,565	$ 9,553
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (shares)	1,000,000	1,000,000
Preferred stock shares issued (shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (shares)	50,000,000	50,000,000
Common stock shares issued (shares)	7,367,327	7,361,077
Common stock shares outstanding (shares)	7,367,327	7,361,077

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Interest and dividend income
Loans receivable and loans held for sale	$ 9,328	$ 8,788
Investment securities	58	70
Dividends from mutual funds, FHLB stock and other investments	26	24
Interest-bearing deposits in banks and CDs	623	281
Total interest and dividend income	10,035	9,163
Interest expense
Deposits	601	543
FHLB borrowings	0	307
Total interest expense	601	850
Net interest income	9,434	8,313
Provision for loan losses	0	0
Net interest income after provision for loan losses	9,434	8,313
Non-interest income
Recoveries (other than temporary impairment OTTI) on investment securities	(27)	0
Adjustment for portion of OTTI transferred from other comprehensive income before income taxes	(5)	0
Net recoveries on investment securities	(22)	0
Service charges on deposits	1,179	1,105
ATM and debit card interchange transaction fees	845	800
BOLI net earnings	136	137
Gain on sales of loans, net	521	689
Escrow fees	59	76
Servicing income on loans sold	116	97
Other, net	259	312
Total non-interest income, net	3,137	3,216
Non-interest expense
Salaries and employee benefits	3,950	3,680
Premises and equipment	768	755
Advertising	209	162
OREO and other repossessed assets, net	113	30
ATM and debit card interchange transaction fees	331	311
Postage and courier	105	95
State and local taxes	161	155
Professional fees	218	201
Federal Deposit Insurance Corporation (FDIC) insurance	65	113
Loan administration and foreclosure	79	94
Data processing and telecommunications	467	450
Deposit operations	278	309
Other	432	455
Total non-interest expense	7,176	6,810
Income before income taxes	5,395	4,719
Provision for income taxes	1,781	1,572
Net income	$ 3,614	$ 3,147
Net income per common share
Basic (in dollars per share)	$ 0.49	$ 0.46
Diluted (in dollars per share)	$ 0.48	$ 0.43
Weighted average common shares outstanding
Basic (in shares)	7,312,531	6,862,749
Diluted (in shares)	7,508,169	7,235,515
Dividends paid per common share (in dollars per share)	$ 0.11	$ 0.09

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Comprehensive income
Net income	$ 3,614	$ 3,147
Unrealized holding loss on investment securities available for sale, net of income taxes of ($2) and ($14), respectively	(7)	(27)
Change in OTTI on investment securities held to maturity, net of income taxes:
Adjustments related to other factors for which OTTI was previously recognized, net of income taxes of ($6) and $0, respectively	(21)	0
Amount reclassified to credit loss for previously recorded market loss, net of income taxes of $1 and $0, respectively	4	0
Accretion of OTTI on investment securities held to maturity, net of income taxes of $3 and $7, respectively	12	13
Total other comprehensive loss, net of income taxes	(12)	(14)
Total comprehensive income	$ 3,602	$ 3,133

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Unrealized holding loss on investment securities available for sale, tax	$ (2)	$ (14)
Adjustments related to other factors for which OTTI was previously recognized, tax	(6)	0
Amount reclassified to credit loss for previously recorded market loss, tax	1	0
Accretion of OTTI on investment securities held to maturity, tax	$ 3	$ 7

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total		Stock Options	Number of Shares	Number of SharesStock Options	Unearned Shares Issued to ESOP	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at beginning of period (in shares) at Sep. 30, 2016				6,943,868
Balance at beginning of period at Sep. 30, 2016	$ 96,834			$ 9,961		$ (661)	$ 87,709	$ (175)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,147						3,147
Other comprehensive income (loss)	$ (14)							(14)
Exercise of stock options (in shares)	12,700			12,700
Exercise of stock options	$ 80			$ 80
Common stock dividends ($0.09 and $0.11 per share, respectively)	(626)						(626)
Earned ESOP shares, net of income taxes	128			$ 62		66
Stock option compensation expense			$ 85		$ 85
Balance at end of period (in shares) at Dec. 31, 2016				6,956,568
Balance at end of period at Dec. 31, 2016	99,634			$ 10,188		(595)	90,230	(189)	[1]
Balance at beginning of period (in shares) at Sep. 30, 2017				7,361,077
Balance at beginning of period at Sep. 30, 2017	111,000	[2]		$ 13,286		(397)	98,235	(124)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,614						3,614
Other comprehensive income (loss)	$ (12)							(12)
Exercise of stock options (in shares)	6,250			6,250
Exercise of stock options	$ 61			$ 61
Common stock dividends ($0.09 and $0.11 per share, respectively)	(810)						(810)
Earned ESOP shares, net of income taxes	215			$ 149		66
Stock option compensation expense			$ 44		$ 44
Balance at end of period (in shares) at Dec. 31, 2017				7,367,327
Balance at end of period at Dec. 31, 2017	$ 114,112			$ 13,540		$ (331)	$ 101,039	$ (136)	[1]
[1]	All amounts are net of income taxes.
[2]	Derived from audited consolidated financial statements.

Consolidated Statements of Sha8

Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Number of Shares
Common stock dividends (in dollars per share)	$ 0.11	$ 0.09

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017		Dec. 31, 2016
Cash flows from operating activities
Net income	$ 3,614		$ 3,147
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	310		313
Earned ESOP shares	215		128
Stock option compensation expense	44		85
Net recoveries on investment securities	(22)		0
Gain on sales of OREO and other repossessed assets, net	(12)		(3)
Provision for OREO losses	94		9
Gain on sales of loans, net	(521)		(689)
Loans originated for sale	(15,193)		(21,914)
Proceeds from sales of loans	15,906		24,199
Amortization of MSRs	120		125
BOLI net earnings	(136)		(137)
Increase (decrease) in deferred loan origination fees	38		(45)
Net change in accrued interest receivable and other assets, and other liabilities and accrued expenses	1,301		760
Net cash provided by operating activities	5,758		5,978
Cash flows from investing activities
Net increase in CDs held for investment	(10,494)		(432)
Proceeds from maturities and prepayments of investment securities held to maturity	11		136
Proceeds from maturities and prepayments of investment securities available for sale	126		14
Increase in loans receivable, net	(15,105)		(5,994)
Additions to premises and equipment	(199)		(1,970)
Proceeds from sales of OREO and other repossessed assets	495		902
Net cash used in investing activities	(25,166)		(7,344)
Cash flows from financing activities
Net increase in deposits	38,176		28,441
Proceeds from exercise of stock options	61		80
Payment of dividends	(810)		(626)
Net cash provided by financing activities	37,427		27,895
Net increase in cash and cash equivalents	18,019		26,529
Cash and cash equivalents, at beginning of period	148,188	[1]	108,941
Cash and cash equivalents, at end of period	166,207		135,470
Supplemental disclosure of cash flow information
Income taxes paid	0		200
Interest paid	584		834
Supplemental disclosure of non-cash investing activities
Loans transferred to OREO and other repossessed assets	163		45
Other comprehensive loss related to investment securities	$ (12)		$ (14)
[1]	Derived from audited consolidated financial statements.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	3 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (a) Basis of Presentation: The accompanying unaudited consolidated financial statements for Timberland Bancorp, Inc. (“Company”) were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with instructions for Form 10-Q and, therefore, do not include all disclosures necessary for a complete presentation of consolidated financial condition, results of operations, and cash flows in conformity with GAAP. However, all adjustments which are, in the opinion of management, necessary for a fair presentation of the interim consolidated financial statements have been included. All such adjustments are of a normal recurring nature. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended September 30, 2017 (“2017 Form 10-K”). The unaudited consolidated results of operations for the three months ended December 31, 2017 are not necessarily indicative of the results that may be expected for the entire fiscal year ending September 30, 2018. (b) Principles of Consolidation: The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Timberland Bank (“Bank”), and the Bank’s wholly-owned subsidiary, Timberland Service Corporation. All significant intercompany transactions and balances have been eliminated in consolidation. (c) Operating Segment: The Company has one reportable operating segment which is defined as community banking in western Washington under the operating name, “Timberland Bank.” (d) The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. (e) Certain prior period amounts have been reclassified to conform to the December 31, 2017 presentation with no change to net income or total shareholders’ equity as previously reported.

Investment Securities

Investment Securities	3 Months Ended
	Dec. 31, 2017
Investments [Abstract]
Investment Securities	INVESTMENT SECURITIES Held to maturity and available for sale investment securities have been classified according to management’s intent and were as follows as of December 31, 2017 and September 30, 2017 (dollars in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value December 31, 2017 Held to maturity Mortgage-backed securities ("MBS"): U.S. government agencies $ 502 $ 9 $ — $ 511 Private label residential 580 561 (2 ) 1,139 U.S. Treasury and U.S government agency securities 5,995 — (36 ) 5,959 Total $ 7,077 $ 570 $ (38 ) $ 7,609 Available for sale MBS: U.S. government agencies $ 260 $ 15 $ — $ 275 Mutual funds 1,000 — (54 ) 946 Total $ 1,260 $ 15 $ (54 ) $ 1,221 September 30, 2017 Held to maturity MBS: U.S. government agencies $ 532 $ 11 $ (1 ) $ 542 Private label residential 599 596 (2 ) 1,193 U.S. Treasury and U.S. government agency securities 6,008 10 (9 ) 6,009 Total $ 7,139 $ 617 $ (12 ) $ 7,744 Available for sale MBS: U.S. government agencies $ 271 $ 18 $ — $ 289 Mutual funds 1,000 — (48 ) 952 Total $ 1,271 $ 18 $ (48 ) $ 1,241 Held to maturity and available for sale investment securities with unrealized losses were as follows for December 31, 2017 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Held to maturity MBS: U.S. government agencies $ 8 $ — 2 $ 74 $ — 5 $ 82 $ — Private label residential — — — 81 (2 ) 10 81 (2 ) U.S. Treasury and U.S. government agency securities 5,959 (36 ) 2 — — — 5,959 (36 ) Total $ 5,967 $ (36 ) 4 $ 155 $ (2 ) 15 $ 6,122 $ (38 ) Available for sale Mutual funds $ — $ — — $ 946 $ (54 ) 1 $ 946 $ (54 ) Total $ — $ — — $ 946 $ (54 ) 1 $ 946 $ (54 ) Held to maturity and available for sale investment securities with unrealized losses were as follows for September 30, 2017 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Held to maturity MBS: U.S. government agencies $ — $ — — $ 114 $ (1 ) 6 $ 114 $ (1 ) Private label residential — — — 85 (2 ) 10 85 (2 ) U.S. Treasury and U.S. government agency securities 2,984 (9 ) 1 — — — 2,984 (9 ) Total $ 2,984 $ (9 ) 1 $ 199 $ (3 ) 16 $ 3,183 $ (12 ) Available for sale Mutual funds $ — $ — — $ 952 $ (48 ) 1 $ 952 $ (48 ) Total $ — $ — — $ 952 $ (48 ) 1 $ 952 $ (48 ) The Company has evaluated the investment securities in the above tables and has determined that the decline in their value is temporary. The unrealized losses are primarily due to changes in market interest rates and spreads in the market for mortgage-related products. The fair value of these securities is expected to recover as the securities approach their maturity dates and/or as the pricing spreads narrow on mortgage-related securities. The Company has the ability and the intent to hold the investments until the market value recovers. Furthermore, as of December 31, 2017 , management does not have the intent to sell any of the securities classified as available for sale where the estimated fair value is below the recorded value and believes that it is more likely than not that the Company will not have to sell such securities before a recovery of cost (or recorded value if previously written down). The Company bifurcates OTTI into (1) amounts related to credit losses which are recognized through earnings and (2) amounts related to all other factors which are recognized as a component of other comprehensive income (loss). To determine the component of the gross OTTI related to credit losses, the Company compared the amortized cost basis of the OTTI security to the present value of its revised expected cash flows, discounted using its pre-impairment yield. The revised expected cash flow estimates for individual securities are based primarily on an analysis of default rates, prepayment speeds and third-party analytic reports. Significant judgment by management is required in this analysis that includes, but is not limited to, assumptions regarding the collectability of principal and interest, net of related expenses, on the underlying loans. The following table presents a summary of the significant inputs utilized to measure management’s estimates of the credit loss component on OTTI securities as of December 31, 2017 and 2016: Range Weighted Minimum Maximum Average December 31, 2017 Constant prepayment rate 6.00 % 15.00 % 9.91 % Collateral default rate — % 11.08 % 4.77 % Loss severity rate — % 62.00 % 37.32 % December 31, 2016 Constant prepayment rate 6.00 % 15.00 % 12.28 % Collateral default rate 0.34 % 13.35 % 5.66 % Loss severity rate 5.00 % 81.00 % 46.05 % The following table presents the OTTI recoveries (losses) for the three months ended December 31, 2017 and 2016 (dollars in thousands): Three Months Ended December 31, 2017 Three Months Ended Held To Maturity Available For Sale Held To Maturity Available For Sale Total recoveries $ 27 $ — $ — $ — Adjustment for portion of OTTI transferred from other comprehensive income before income taxes (1) (5 ) — — — Net recoveries recognized in earnings (2) $ 22 $ — $ — $ — _________________ (1) Represents OTTI related to all other factors. (2) Represents OTTI related to credit losses. The following table presents a roll forward of the credit loss component of held to maturity and available for sale debt securities that have been written down for OTTI with the credit loss component recognized in earnings for the three months ended December 31, 2017 and 2016 (dollars in thousands): Three Months Ended December 31, 2017 2016 Beginning balance of credit loss $ 1,301 $ 1,505 Additions: Additional increases to the amount related to credit loss for which OTTI was previously recognized 6 — Subtractions: Realized losses previously recorded as credit losses (22 ) (13 ) Recovery of prior credit loss (26 ) — Ending balance of credit loss $ 1,259 $ 1,492 During the three months ended December 31, 2017 , the Company recorded a $22,000 net realized loss (as a result of the securities being deemed worthless) on 12 held to maturity investment securities, all of which had been recognized previously as a credit loss. During the three months ended December 31, 2016 , the Company recorded a $13,000 net realized loss (as a result of the securities being deemed worthless) on 11 held to maturity investment securities, all of which had been recognized previously as a credit loss. The recorded amount of investment securities pledged as collateral for public fund deposits, federal treasury tax and loan deposits, FHLB collateral and other non-profit organization deposits totaled $6.77 million and $6.82 million at December 31, 2017 and September 30, 2017 , respectively. The contractual maturities of debt securities at December 31, 2017 were as follows (dollars in thousands). Expected maturities may differ from scheduled maturities due to the prepayment of principal or call provisions. Held to Maturity Available for Sale Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due after one year to five years $ 5,997 $ 5,961 $ — $ — Due after five years to ten years 34 34 — — Due after ten years 1,046 1,614 260 275 Total $ 7,077 $ 7,609 $ 260 $ 275

Goodwill

Goodwill	3 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	GOODWILL Goodwill is initially recorded when the purchase price paid in a business combination exceeds the estimated fair value of the net identified tangible and intangible assets acquired and liabilities assumed. Goodwill is presumed to have an indefinite useful life and is analyzed annually for impairment. The Company performs an annual review during the third quarter of each fiscal year, or more frequently if indicators of potential impairment exist, to determine if the recorded goodwill is impaired. For purposes of goodwill impairment testing, the services offered through the Bank and its subsidiary are managed as one strategic unit and represent the Company's only reporting unit. The annual goodwill impairment test begins with a qualitative assessment of whether it is "more likely than not" that the reporting unit's fair value is less than its carrying amount. If an entity concludes that it is not "more likely than not" that the fair value of a reporting unit is less than its carrying amount, it need not perform a two-step impairment test. If the Company's qualitative assessment concluded that it is "more likely than not" that the fair value of its reporting unit is less than its carrying amount, it must perform the two-step impairment test to identify potential goodwill impairment and measure the amount of goodwill impairment loss to be recognized, if any. The first step of the goodwill impairment test compares the estimated fair value of the reporting unit with its carrying amount, or the book value, including goodwill. If the estimated fair value of the reporting unit equals or exceeds its book value, goodwill is considered not impaired, and the second step of the impairment test is unnecessary. The second step, if necessary, measures the amount of goodwill impairment loss to be recognized. The reporting unit must determine fair value for all assets and liabilities, excluding goodwill. The net of the assigned fair value of assets and liabilities is then compared to the book value of the reporting unit, and any excess book value becomes the implied fair value of goodwill. If the carrying amount of the goodwill exceeds the newly calculated implied fair value of goodwill, an impairment loss is recognized in the amount required to write-down the goodwill to the implied fair value. Management's qualitative assessment takes into consideration macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on this assessment, the Company determined that it is not "more likely than not" that the Company's fair value is less than its carrying amount and therefore goodwill was determined not to be impaired at May 31, 2017. A significant amount of judgment is involved in determining if an indicator of goodwill impairment has occurred. Such indicators may include, among others: a significant decline in expected future cash flows; a sustained, significant decline in the Company's stock price and market capitalization; a significant adverse change in legal factors or in the business climate; adverse assessment or action by a regulator; and unanticipated competition. Any change in these indicators could have a significant negative impact on the Company's financial condition, impact the goodwill impairment analysis or cause the Company to perform a goodwill impairment analysis more frequently than once per year. As of December 31, 2017, management believes that there have been no events or changes in the circumstances since May 31, 2017 that would indicate a potential impairment of goodwill. No assurances can be given, however, that the Company will not record an impairment loss on goodwill in the future.

Loans Receivable And Allowance

Loans Receivable And Allowance For Loan Losses	3 Months Ended
	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans Receivable And Allowance For Loan Losses	LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES Loans receivable by portfolio segment consisted of the following at December 31, 2017 and September 30, 2017 (dollars in thousands): December 31, September 30, Amount Percent Amount Percent Mortgage loans: One- to four-family (1) $ 116,976 14.6 % $ 118,147 15.1 % Multi-family 61,366 7.7 58,607 7.5 Commercial 333,085 41.8 328,927 41.9 Construction - custom and owner/builder 123,365 15.5 117,641 15.0 Construction - speculative one- to four-family 7,253 0.9 9,918 1.2 Construction - commercial 22,000 2.8 19,630 2.5 Construction - multi-family 24,601 3.1 21,327 2.7 Land 21,122 2.7 23,910 3.0 Total mortgage loans 709,768 89.1 698,107 88.9 Consumer loans: Home equity and second mortgage 38,975 4.9 38,420 4.9 Other 4,050 0.5 3,823 0.5 Total consumer loans 43,025 5.4 42,243 5.4 Commercial business loans (2) 43,993 5.5 44,444 5.7 Total loans receivable 796,786 100.0 % 784,794 100.0 % Less: Undisbursed portion of construction loans in process 79,449 82,411 Deferred loan origination fees, net 2,504 2,466 Allowance for loan losses 9,565 9,553 91,518 94,430 Loans receivable, net $ 705,268 $ 690,364 _____________________________ (1) Does not include one- to four-family loans held for sale totaling $ 3,236 and $3,515 at December 31, 2017 and September 30, 2017, respectively. (2) Does not include commercial business loans held for sale totaling $171 and $84 at December 31, 2017 and September 30, 2017, respectively. Allowance for Loan Losses The following tables set forth information for the three months ended December 31, 2017 and 2016 regarding activity in the allowance for loan losses by portfolio segment (dollars in thousands): Three Months Ended December 31, 2017 Beginning Allowance Provision for (Recapture of) Loan Losses Charge- offs Recoveries Ending Allowance Mortgage loans: One- to four-family $ 1,082 $ 43 $ — $ — $ 1,125 Multi-family 447 (17 ) — — 430 Commercial 4,184 (91 ) — — 4,093 Construction – custom and owner/builder 699 89 — — 788 Construction – speculative one- to four-family 128 (61 ) — 8 75 Construction – commercial 303 93 — — 396 Construction – multi-family 173 55 — — 228 Land 918 (142 ) — 4 780 Consumer loans: Home equity and second mortgage 983 (25 ) — — 958 Other 121 8 (1 ) 1 129 Commercial business loans 515 48 — — 563 Total $ 9,553 $ — $ (1 ) $ 13 $ 9,565 Three Months Ended December 31, 2016 Beginning Allowance Provision for (Recapture of) Loan Losses Charge- offs Recoveries Ending Allowance Mortgage loans: One- to four-family $ 1,239 $ (83 ) $ — $ 21 $ 1,177 Multi-family 473 (73 ) — — 400 Commercial 4,384 144 (5 ) — 4,523 Construction – custom and owner/builder 619 17 — — 636 Construction – speculative one- to four-family 130 (30 ) — — 100 Construction – commercial 268 14 — — 282 Construction – multi-family 316 69 — — 385 Land 820 13 (2 ) 5 836 Consumer loans: Home equity and second mortgage 939 (80 ) — — 859 Other 156 2 (3 ) 1 156 Commercial business loans 482 7 — — 489 Total $ 9,826 $ — $ (10 ) $ 27 $ 9,843 The following tables present information on the loans evaluated individually and collectively for impairment in the allowance for loan losses by portfolio segment at December 31, 2017 and September 30, 2017 (dollars in thousands): Allowance for Loan Losses Recorded Investment in Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Individually Evaluated for Impairment Collectively Evaluated for Impairment Total December 31, 2017 Mortgage loans: One- to four-family $ 1 $ 1,124 $ 1,125 $ 1,467 $ 115,509 $ 116,976 Multi-family — 430 430 — 61,366 61,366 Commercial 16 4,077 4,093 4,044 329,041 333,085 Construction – custom and owner/builder — 788 788 — 71,548 71,548 Construction – speculative one- to four-family — 75 75 — 2,723 2,723 Construction – commercial — 396 396 — 14,390 14,390 Construction – multi-family — 228 228 — 9,109 9,109 Land 72 708 780 944 20,178 21,122 Consumer loans: Home equity and second mortgage 291 667 958 484 38,491 38,975 Other — 129 129 4,050 4,050 Commercial business loans 55 508 563 181 43,812 43,993 Total $ 435 $ 9,130 $ 9,565 $ 7,120 $ 710,217 $ 717,337 September 30, 2017 Mortgage loans: One- to four-family $ — $ 1,082 $ 1,082 $ 1,443 $ 116,704 $ 118,147 Multi-family — 447 447 — 58,607 58,607 Commercial 26 4,158 4,184 3,873 325,054 328,927 Construction – custom and owner/builder — 699 699 — 63,538 63,538 Construction – speculative one- to four-family — 128 128 — 4,639 4,639 Construction – commercial — 303 303 — 11,016 11,016 Construction – multi-family — 173 173 — 6,912 6,912 Land 125 793 918 1,119 22,791 23,910 Consumer loans: Home equity and second mortgage 325 658 983 557 37,863 38,420 Other — 121 121 — 3,823 3,823 Commercial business loans — 515 515 — 44,444 44,444 Total $ 476 $ 9,077 $ 9,553 $ 6,992 $ 695,391 $ 702,383 The following tables present an analysis of loans by aging category and portfolio segment at December 31, 2017 and September 30, 2017 (dollars in thousands): 30–59 Days Past Due 60-89 Days Past Due Non- Accrual (1) Past Due 90 Days or More and Still Accruing Total Past Due Current Total Loans December 31, 2017 Mortgage loans: One- to four-family $ 325 $ — $ 947 $ — $ 1,272 $ 115,704 $ 116,976 Multi-family — — — — — 61,366 61,366 Commercial 502 — 402 — 904 332,181 333,085 Construction – custom and owner/builder — — — — — 71,548 71,548 Construction – speculative one- to four- family — — — — — 2,723 2,723 Construction – commercial — — — — — 14,390 14,390 Construction – multi-family — — — — — 9,109 9,109 Land 43 — 395 — 438 20,684 21,122 Consumer loans: Home equity and second mortgage 101 — 188 — 289 38,686 38,975 Other — 36 — — 36 4,014 4,050 Commercial business loans — — 181 — 181 43,812 43,993 Total $ 971 $ 36 $ 2,113 $ — $ 3,120 $ 714,217 $ 717,337 September 30, 2017 Mortgage loans: One- to four-family $ 193 $ — $ 874 $ — $ 1,067 $ 117,080 $ 118,147 Multi-family — — — — — 58,607 58,607 Commercial — 107 213 — 320 328,607 328,927 Construction – custom and owner/ — — — — — 63,538 63,538 Construction – speculative one- to four- family — — — — — 4,639 4,639 Construction – commercial — — — — — 11,016 11,016 Construction – multi-family — — — — — 6,912 6,912 Land — — 566 — 566 23,344 23,910 Consumer loans: Home equity and second mortgage 56 — 258 — 314 38,106 38,420 Other 36 — — — 36 3,787 3,823 Commercial business loans 110 — — — 110 44,334 44,444 Total $ 395 $ 107 $ 1,911 $ — $ 2,413 $ 699,970 $ 702,383 ______________________ (1) Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual. Credit Quality Indicators The Company uses credit risk grades which reflect the Company’s assessment of a loan’s risk or loss potential. The Company categorizes loans into risk grade categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors such as the estimated fair value of the collateral. The Company uses the following definitions for credit risk ratings as part of the on-going monitoring of the credit quality of its loan portfolio: Pass: Pass loans are defined as those loans that meet acceptable quality underwriting standards. Watch: Watch loans are defined as those loans that still exhibit acceptable quality, but have some concerns that justify greater attention. If these concerns are not corrected, a potential for further adverse categorization exists. These concerns could relate to a specific condition peculiar to the borrower, its industry segment or the general economic environment. Special Mention: Special mention loans are defined as those loans deemed by management to have some potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in the deterioration of the payment prospects of the loan. Substandard: Substandard loans are defined as those loans that are inadequately protected by the current net worth and paying capacity of the obligor, or of the collateral pledged. Loans classified as substandard have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. If the weakness or weaknesses are not corrected, there is the distinct possibility that some loss will be sustained. Loss: Loans in this classification are considered uncollectible and of such little value that continuance as bankable assets is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this loan even though partial recovery may be realized in the future. At December 31, 2017 and September 30, 2017 , there were no loans classified as loss. The following tables present an analysis of loans by credit quality indicator and portfolio segment at December 31, 2017 and September 30, 2017 (dollars in thousands): Loan Grades December 31, 2017 Pass Watch Special Substandard Total Mortgage loans: One- to four-family $ 113,235 $ 902 $ 595 $ 2,244 $ 116,976 Multi-family 61,366 — — — 61,366 Commercial 322,737 6,028 3,522 798 333,085 Construction – custom and owner/builder 70,989 559 — — 71,548 Construction – speculative one- to four-family 2,723 — — — 2,723 Construction – commercial 14,390 — — — 14,390 Construction – multi-family 9,109 — — — 9,109 Land 17,929 1,014 1,784 395 21,122 Consumer loans: Home equity and second mortgage 38,463 149 — 363 38,975 Other 4,014 — — 36 4,050 Commercial business loans 43,728 29 55 181 43,993 Total $ 698,683 $ 8,681 $ 5,956 $ 4,017 $ 717,337 September 30, 2017 Mortgage loans: One- to four-family $ 115,481 $ 422 $ 644 $ 1,600 $ 118,147 Multi-family 56,857 — 1,750 — 58,607 Commercial 318,717 6,059 3,540 611 328,927 Construction – custom and owner/builder 63,210 328 — — 63,538 Construction – speculative one- to four-family 4,639 — — — 4,639 Construction – commercial 11,016 — — — 11,016 Construction – multi-family 6,912 — — — 6,912 Land 20,528 1,022 1,794 566 23,910 Consumer loans: Home equity and second mortgage 37,828 152 — 440 38,420 Other 3,787 — — 36 3,823 Commercial business loans 43,416 973 55 — 44,444 Total $ 682,391 $ 8,956 $ 7,783 $ 3,253 $ 702,383 Impaired Loans A loan is considered impaired when it is probable that the Company will be unable to collect all amounts (principal and interest) when due according to the contractual terms of the loan agreement. Smaller balance homogeneous loans, such as residential mortgage loans and consumer loans, may be collectively evaluated for impairment. When a loan has been identified as being impaired, the amount of the impairment is measured by using discounted cash flows, except when, as an alternative, the current estimated fair value of the collateral, reduced by estimated costs to sell (if applicable), or observable market price is used. The valuation of real estate collateral is subjective in nature and may be adjusted in future periods because of changes in economic conditions. Management considers third-party appraisals, as well as independent fair market value assessments from realtors or persons involved in selling real estate, in determining the estimated fair value of particular properties. In addition, as certain of these third-party appraisals and independent fair market value assessments are only updated periodically, changes in the values of specific properties may have occurred subsequent to the most recent appraisals. Accordingly, the amounts of any such potential changes and any related adjustments are generally recorded at the time such information is received. When the measurement of the impaired loan is less than the recorded investment in the loan (including accrued interest and net deferred loan origination fees or costs), impairment is recognized by creating or adjusting an allocation of the allowance for loan losses and uncollected accrued interest is reversed against interest income. If ultimate collection of principal is in doubt, all cash receipts on impaired loans are applied to reduce the principal balance. The categories of non-accrual loans and impaired loans overlap, although they are not identical. The following table is a summary of information related to impaired loans by portfolio segment as of December 31, 2017 and for the three months then ended (dollars in thousands): Recorded Investment Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Allowance Year to Date ("YTD") Average Recorded Investment (1) YTD Interest Income Recognized (1) YTD Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 1,423 $ 1,569 $ — $ 1,433 $ 19 $ 16 Commercial 2,151 2,151 — 2,059 24 17 Land 45 141 — 171 — — Consumer loans: Home equity and second mortgage 188 188 — 156 2 2 Subtotal 3,807 4,049 — 3,819 45 35 With an allowance recorded: Mortgage loans: One- to four-family 44 44 1 22 — — Commercial 1,893 1,893 16 1,900 27 21 Land 899 899 72 861 9 8 Consumer loans: Home equity and second mortgage 296 296 291 365 6 5 Commercial business loans 181 181 55 91 — — Subtotal 3,313 3,313 435 3,239 42 34 Total: Mortgage loans: One- to four-family 1,467 1,613 1 1,455 19 16 Commercial 4,044 4,044 16 3,959 51 38 Land 944 1,040 72 1,032 9 8 Consumer loans: Home equity and second mortgage 484 484 291 521 8 7 Commercial business loans 181 181 55 91 — — Total $ 7,120 $ 7,362 $ 435 $ 7,058 $ 87 $ 69 ______________________________________________ (1) For the three months ended December 31, 2017 . The following table is a summary of information related to impaired loans by portfolio segment as of and for the year ended September 30, 2017 (dollars in thousands): Recorded Investment Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Allowance Average Recorded Investment (1) Interest Income Recognized (1) Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 1,443 $ 1,589 $ — $ 1,108 $ 68 $ 62 Commercial 1,967 1,967 — 3,901 188 143 Construction – custom and owner/builder — — — 147 7 7 Land 297 410 — 512 8 6 Consumer loans: Home equity and second mortgage 123 123 — 284 — — Commercial business loans — — — 11 — — Subtotal 3,830 4,089 — 5,963 271 218 With an allowance recorded: Mortgage loans: One- to four-family — — — 721 50 38 Commercial 1,906 1,906 26 3,326 182 144 Land 822 881 125 666 35 29 Consumer loans: Home equity and second mortgage 434 434 325 530 29 26 Other — — — 17 — — Subtotal 3,162 3,221 476 5,260 296 237 Total: Mortgage loans: One- to four-family 1,443 1,589 — 1,829 118 100 Commercial 3,873 3,873 26 7,227 370 287 Construction – custom and owner/builder — — — 147 7 7 Land 1,119 1,291 125 1,178 43 35 Consumer loans: Home equity and second mortgage 557 557 325 814 29 26 Other — — — 17 — — Commercial business loans — — — 11 — — Total $ 6,992 $ 7,310 $ 476 $ 11,223 $ 567 $ 455 ______________________________________________ (1) For the year ended September 30, 2017. A troubled debt restructured loan ("TDR") is a loan for which the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower that the Company would not otherwise consider. Examples of such concessions include but are not limited to: a reduction in the stated interest rate; an extension of the maturity at an interest rate below current market rates; a reduction in the face amount of the debt; a reduction in the accrued interest; or re-amortizations, extensions, deferrals and renewals. TDRs are considered impaired and are individually evaluated for impairment. TDRs are classified as non-accrual (and considered to be non-performing) unless they have been performing in accordance with modified terms for a period of at least six months. The Company had $3.48 million and $3.60 million in TDRs included in impaired loans at December 31, 2017 and September 30, 2017, respectively, and had no commitments at these dates to lend additional funds on these loans. The allowance for loan losses allocated to TDRs at December 31, 2017 and September 30, 2017 was $33,000 and $10,000 , respectively. There were no TDRs for which there was a payment default within the first 12 months of the modification during the three months ended December 31, 2017. The following tables set forth information with respect to the Company’s TDRs by interest accrual status as of December 31, 2017 and September 30, 2017 (dollars in thousands): December 31, 2017 Accruing Non- Accrual Total Mortgage loans: One- to four-family $ 520 $ 44 $ 564 Commercial 2,214 — 2,214 Land 548 155 703 Total $ 3,282 $ 199 $ 3,481 September 30, 2017 Accruing Non- Accrual Total Mortgage loans: One- to four-family $ 569 $ — $ 569 Commercial 2,219 — 2,219 Land 554 253 807 Total $ 3,342 $ 253 $ 3,595 There was one new TDR during the three months ended December 31, 2017 as a result of a reduction in the face amount of the debt on a land loan. This TDR had a pre-modification balance of $214,000 , a post-modification balance of $155,000 and a balance at December 31, 2017 of $155,000 . There were no new TDRs during the year ended September 30, 2017.

Net Income Per Common Share

Net Income Per Common Share	3 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Net Income Per Common Share	NET INCOME PER COMMON SHARE Basic net income per common share is computed by dividing net income to common shareholders by the weighted average number of common shares outstanding during the period, without considering any dilutive items. Diluted net income per common share is computed by dividing net income to common shareholders by the weighted average number of common shares and common stock equivalents for items that are dilutive, net of shares assumed to be repurchased using the treasury stock method at the average share price for the Company’s common stock during the period. Common stock equivalents arise from the assumed conversion of outstanding stock options and the outstanding warrant to purchase common stock. Shares owned by the Bank’s ESOP that have not been allocated are not considered to be outstanding for the purpose of computing basic and diluted net income per common share. At December 31, 2017 and 2016, there were 51,105 and 84,964 shares, respectively, that had not been allocated under the Bank’s ESOP. Information regarding the calculation of basic and diluted net income per common share for the three months ended December 31, 2017 and 2016 is as follows (dollars in thousands, except per share amounts): Three Months Ended 2017 2016 Basic net income per common share computation Numerator – net income $ 3,614 $ 3,147 Denominator – weighted average common shares outstanding 7,312,531 6,862,749 Basic net income per common share $ 0.49 $ 0.46 Diluted net income per common share computation Numerator – net income $ 3,614 $ 3,147 Denominator – weighted average common shares outstanding 7,312,531 6,862,749 Effect of dilutive stock options (1) 195,638 139,493 Effect of dilutive stock warrant (2) — 233,273 Weighted average common shares outstanding - assuming dilution 7,508,169 7,235,515 Diluted net income per common share $ 0.48 $ 0.43 ____________________________________________ (1) For the three months ended December 31, 2017, average options to purchase 14,651 shares of common stock were outstanding but not included in the computation of diluted net income per common share because their effect would have been anti-dilutive. For the three months ended December 31, 2016, all outstanding options were included in the computation of diluted net income per share. (2) Represented a warrant to purchase 370,899 shares of the Company's common stock at an exercise price of $6.73 per share (subject to anti-dilution adjustments) at any time through December 23, 2018 (the "Warrant"). The Warrant was granted on December 23, 2008 to the U.S. Treasury Department ("Treasury") as part of the Company's participation in the Treasury's Troubled Asset Relief Program ("TARP"). On June 12, 2013, the Treasury sold the Warrant to private investors. On January 31, 2017, the Warrant was exercised and 370,899 shares of the Company's common stock were issued in exchange for $2.50 million .

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Accumulated Other Comprehensive Loss	ACCUMULATED OTHER COMPREHENSIVE LOSS The changes in accumulated other comprehensive loss ("AOCI") by component during the three months ended December 31, 2017 and 2016 are as follows (dollars in thousands): Three Months Ended December 31, 2017 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ (19 ) $ (105 ) $ (124 ) Net change (7 ) (5 ) (12 ) Balance of AOCI at the end of period $ (26 ) $ (110 ) $ (136 ) Three Months Ended December 31, 2016 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ 4 $ (179 ) $ (175 ) Net change (27 ) 13 (14 ) Balance of AOCI at the end of period $ (23 ) $ (166 ) $ (189 ) __________________________ (1) All amounts are net of income taxes.

Stock Compensation Plans

Stock Compensation Plans	3 Months Ended
	Dec. 31, 2017
Share-based Compensation [Abstract]
Stock Compensation Plans	STOCK COMPENSATION PLANS Under the Company’s 2003 Stock Option Plan, the Company was able to grant options for up to 300,000 shares of common stock to employees, officers, directors and directors emeriti. Under the Company's 2014 Equity Incentive Plan, the Company is able to grant options and awards of restricted stock (with or without performance measures) for up to 352,366 shares of common stock to employees, officers, directors and directors emeriti. Shares issued may be purchased in the open market or may be issued from authorized and unissued shares. The exercise price of each option equals the fair market value of the Company’s common stock on the date of grant. Generally, options and restricted stock vest in 20% annual installments on each of the five anniversaries from the date of the grant, and options generally have a maximum contractual term of 10 years from the date of grant. At December 31, 2017 , there were 116,516 shares of common stock available which may be awarded as options or restricted stock pursuant to future grant under the 2014 Equity Incentive Plan. At both December 31, 2017 and 2016, there were no unvested restricted stock awards. There were no restricted stock grants awarded during the three months ended December 31, 2017 and 2016. Stock option activity for the three months ended December 31, 2017 and 2016 is summarized as follows: Three Months Ended Three Months Ended Number of Shares Weighted Average Exercise Price Number of Shares Weighted Average Exercise Price Options outstanding, beginning of period 380,120 $ 13.23 373,130 $ 9.82 Exercised (6,250 ) 9.65 (12,700 ) 6.31 Forfeited (4,300 ) 11.66 — — Options outstanding, end of period 369,570 $ 13.31 360,430 $ 9.94 The aggregate intrinsic value of options exercised during the three months ended December 31, 2017 and 2016 was $124,000 and $157,000 , respectively. At December 31, 2017 , there were 203,250 unvested options with an aggregate grant date fair value of $499,000 , all of which the Company assumes will vest. The aggregate intrinsic value of unvested options at December 31, 2017 was $1.94 million . There were 29,500 options with an aggregate grant date fair value of $75,000 that vested during the three months ended December 31, 2017 . At December 31, 2016 , there were 221,950 unvested options with an aggregate grant date fair value of $438,000 . There were 28,500 options with an aggregate grant date fair value of $67,000 that vested during the three months ended December 31, 2016 . Additional information regarding options outstanding at December 31, 2017 is as follows: Options Outstanding Options Exercisable Range of Exercise Prices ($) Number Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Number Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) $ 4.01 - 4.55 10,000 $ 4.28 2.9 10,000 $ 4.28 2.9 5.86 - 6.00 39,000 5.94 4.8 39,000 5.94 4.8 9.00 78,000 9.00 5.8 59,800 9.00 5.8 10.26 - 10.71 131,520 10.57 7.3 48,070 10.56 7.2 15.67 53,050 15.67 8.8 9,450 15.67 8.8 29.69 58,000 29.69 9.8 — N/A N/A 369,570 $ 13.31 7.2 166,320 $ 8.83 6.0 The aggregate intrinsic value of options outstanding at December 31, 2017 and 2016 was $4.89 million and $3.86 million , respectively. As of December 31, 2017, unrecognized compensation cost related to non-vested stock options was $446,000 , which is expected to be recognized over a weighted average life of 2.25 years.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS GAAP defines fair value and establishes a framework for measuring fair value. Fair value is the price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The three levels for categorizing assets and liabilities under GAAP's fair value measurement requirements are as follows: Level 1: Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2: Significant observable inputs other than quoted prices included within Level 1, such as quoted prices for similar (as opposed to identical) assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs other than quoted prices that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect a company’s own assumptions about the assumptions market participants would use in pricing an asset or liability based on the best information available in the circumstances. The Company's assets measured at fair value on a recurring basis consist of investment securities available for sale. The estimated fair values of MBS are based upon market prices of similar securities or observable inputs (Level 2). The estimated fair values of mutual funds are based upon quoted market prices (Level 1). The Company had no liabilities measured at fair value on a recurring basis at December 31, 2017 and September 30, 2017. The Company's assets measured at estimated fair value on a recurring basis at December 31, 2017 and September 30, 2017 were as follows (dollars in thousands): December 31, 2017 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 275 $ — $ 275 Mutual funds 946 — — 946 Total $ 946 $ 275 $ — $ 1,221 September 30, 2017 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 289 $ — $ 289 Mutual funds 952 — — 952 Total $ 952 $ 289 $ — $ 1,241 There were no transfers among Level 1, Level 2 and Level 3 during the three months ended December 31, 2017 and the year ended September 30, 2017 . The Company may be required, from time to time, to measure certain assets and liabilities at fair value on a non-recurring basis in accordance with GAAP. These include assets that are measured at the lower of cost or market value that were recognized at fair value below cost at the end of the period. The Company uses the following methods and significant assumptions to estimate fair value on a non-recurring basis: Impaired Loans : The estimated fair value of impaired loans is calculated using the collateral value method or on a discounted cash flow basis. The specific reserve for collateral dependent impaired loans is based on the estimated fair value of the collateral less estimated costs to sell, if applicable. In some cases, adjustments are made to the appraised values due to various factors including age of the appraisal, age of comparables included in the appraisal and known changes in the market and in the collateral. Such adjustments may be significant and typically result in a Level 3 classification of the inputs for determining fair value. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. Investment Securities Held to Maturity: The estimated fair value of investment securities held to maturity is based upon the assumptions market participants would use in pricing the investment security. Such assumptions include quoted market prices (Level 1), market prices of similar securities or observable inputs (Level 2) and unobservable inputs such as dealer quotes, discounted cash flows or similar techniques (Level 3). OREO and Other Repossessed Assets, net: OREO and other repossessed assets are recorded at estimated fair value less estimated costs to sell. Estimated fair value is generally determined by management based on a number of factors, including third-party appraisals of estimated fair value in an orderly sale. Estimated costs to sell are based on standard market factors. The valuation of OREO and other repossessed assets is subject to significant external and internal judgment (Level 3). The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at December 31, 2017 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: One- to four-family $ — $ — $ 43 Commercial — — 1,877 Land — — 827 Consumer loans: Home equity and second mortgage — — 5 Commercial business loans — — 126 Total impaired loans — — 2,878 Investment securities – held to maturity: MBS - private label residential — 112 — OREO and other repossessed assets — — 2,887 Total $ — $ 112 $ 5,765 The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of December 31, 2017 (dollars in thousands): Estimated Fair Value Valuation Technique(s) Unobservable Input(s) Range Impaired loans $ 2,878 Market approach Appraised value less selling costs NA OREO and other repossessed assets $ 2,887 Market approach Lower of appraised value or listing price less selling costs NA The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at September 30, 2017 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Commercial $ — $ — $ 1,880 Land — — 697 Consumer loans: Home equity and second mortgage — — 109 Total impaired loans — — 2,686 Investment securities – held to maturity: MBS - private label residential — 125 — OREO and other repossessed assets — — 3,301 Total $ — $ 125 $ 5,987 The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of September 30, 2017 (dollars in thousands): Estimated Fair Value Valuation Technique(s) Unobservable Input(s) Range Impaired loans $ 2,686 Market approach Appraised value less selling costs NA OREO and other repossessed assets $ 3,301 Market approach Lower of appraised value or listing price less selling costs NA GAAP requires disclosure of estimated fair values for financial instruments. Such estimates are subjective in nature, and significant judgment is required regarding the risk characteristics of various financial instruments at a discrete point in time. Therefore, such estimates could vary significantly if assumptions regarding uncertain factors were to change. In addition, as the Company normally intends to hold the majority of its financial instruments until maturity, it does not expect to realize many of the estimated amounts disclosed. The disclosures also do not include estimated fair value amounts for certain items which are not defined as financial instruments but which may have significant value. The Company does not believe that it would be practicable to estimate a representational fair value for these types of items as of December 31, 2017 and September 30, 2017. Because GAAP excludes certain items from fair value disclosure requirements, any aggregation of the fair value amounts presented would not represent the underlying value of the Company. The following methods and assumptions were used by the Company in estimating fair value of its other financial instruments: Cash and Cash Equivalents and CDs Held for Investment: The estimated fair value of financial instruments that are short-term or re-price frequently and that have little or no risk are considered to have an estimated fair value equal to the recorded value. Investment Securities: See descriptions above. FHLB Stock: No ready market exists for this stock, and it has no quoted market value. However, redemption of this stock has historically been at par value. Accordingly, par value is deemed to be a reasonable estimate of fair value. Other Investments: The Bank invests in the Solomon Hess SBA Loan Fund LLC. Shares in the fund are not publicly traded and therefore have no readily determinable fair market value, therefore they are recorded on the balance sheet at cost. An investor can have its investment in the funds redeemed for the balance of its capital account at any quarter end with 60 days notice to the fund. Loans Held for Sale: The estimated fair value is based on quoted market prices (for one-to four-family loans) and the guaranteed value of U.S. Small Business Administration ("SBA") loans (made to small businesses under the SBA's 7(a) loan programs). Quoted market prices are obtained from the Federal Home Loan Mortgage Corporation ("Freddie Mac") and the FHLB. Loans Receivable, Net: The fair value of non-impaired loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers for the same remaining maturities. Prepayments are based on the historical experience of the Bank. Fair values for impaired loans are estimated using the methods described above. Accrued Interest: The recorded amount of accrued interest approximates the estimated fair value. Deposits : The estimated fair value of deposits with no stated maturity date is deemed to be the amount payable on demand. The estimated fair value of fixed maturity certificates of deposit is computed by discounting future cash flows using the rates currently offered by the Bank for deposits of similar remaining maturities. FHLB Borrowings: The estimated fair value of FHLB borrowings is computed by discounting the future cash flows of the borrowings at a rate which approximates the current offering rate of the borrowings with a comparable remaining life. Off-Balance-Sheet Instruments: Since the majority of the Company’s off-balance-sheet instruments consist of variable-rate commitments, the Company has determined that they do not have a distinguishable estimated fair value. The recorded amounts and estimated fair values of financial instruments were as follows as of December 31, 2017 and September 30, 2017 (dollars in thousands): December 31, 2017 Fair Value Measurements Using: Recorded Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 166,207 $ 166,207 $ 166,207 $ — $ — CDs held for investment 53,528 53,528 53,528 — — Investment securities 8,298 8,830 3,910 4,920 — FHLB stock 1,107 1,107 1,107 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,407 3,501 3,501 — — Loans receivable, net 705,268 697,940 — — 697,940 Accrued interest receivable 2,743 2,743 2,743 — — Financial liabilities Deposits: Non-interest-bearing demand 210,108 210,108 210,108 — — Interest-bearing 665,966 665,783 528,543 — 137,240 Total deposits 876,074 875,891 738,651 — 137,240 Accrued interest payable 178 178 178 — — September 30, 2017 Fair Value Measurements Using: Recorded Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 148,188 $ 148,188 $ 148,188 $ — $ — CDs held for investment 43,034 43,034 43,034 — — Investment securities 8,380 8,985 3,954 5,031 — FHLB stock 1,107 1,107 1,107 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,599 3,619 3,619 — — Loans receivable, net 690,364 688,332 — — 688,332 Accrued interest receivable 2,520 2,520 2,520 — — Financial liabilities Deposits: Non-interest-bearing demand 205,952 205,952 205,952 — — Interest-bearing 631,946 632,629 492,305 — 140,324 Total deposits 837,898 838,581 698,257 — 140,324 Accrued interest payable 161 161 161 — — The Company assumes interest rate risk (the risk that general interest rate levels will change) as a result of its normal operations. As a result, the estimated fair value of the Company’s financial instruments will change when interest rate levels change, and that change may either be favorable or unfavorable to the Company. Management attempts to match maturities of assets and liabilities to the extent believed necessary to appropriately manage interest rate risk. However, borrowers with fixed interest rate obligations are less likely to prepay in a rising interest rate environment and more likely to prepay in a falling interest rate environment. Conversely, depositors who are receiving fixed interest rates are more likely to withdraw funds before maturity in a rising interest rate environment and less likely to do so in a falling interest rate environment. Management monitors interest rates and maturities of assets and liabilities, and attempts to manage interest rate risk by adjusting terms of new loans and deposits and by investing in securities with terms that mitigate the Company’s overall interest rate risk.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Dec. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) . The core principle of this ASU is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In general, the new guidance requires companies to use more judgment and make more estimates than under current guidance, including identifying performance obligations in the contract and estimating the amount of variable consideration to include in the transaction price related to each separate performance obligation. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within that reporting period. The Company's primary source of revenue is interest income, which is recognized when earned and is deemed to be in compliance with this ASU. Accordingly, the adoption of ASU No. 2014-09 is not expected to have a material impact on the Company's future consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . The main provisions of this ASU address the valuation and impairment of certain equity investments along with simplified disclosures about the fair value of financial instruments. The amendments in this ASU are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Management is in the planning stages of developing processes and procedures to comply with the disclosure requirements of this ASU, which could impact the disclosures the Company makes related to the fair value of its financial instruments; however, the adoption of ASU No. 2016-01 is not expected to have a material impact on the Company's future consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) . This ASU is intended to increase transparency and comparability among organizations by requiring the recognition of lease assets and lease liabilities on the balance sheet and disclosure of key information about leasing arrangements. The principal change required by this ASU relates to lessee accounting, and is that for operating leases, a lessee is required to (1) recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position, (2) recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis, and (3) classify all cash payments within operating activities in the statement of cash flows. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. This ASU also changes disclosure requirements related to leasing activities and requires certain qualitative disclosures along with specific quantitative disclosures. The amendments in this ASU are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early application of the amendments in this ASU is permitted. The effect of adoption will depend on leases at the time of adoption. Once adopted, the Company expects to report higher assets and liabilities as a result of including right-of-use assets and lease liabilities related to certain banking offices and certain equipment under non-cancelable operating lease agreements; however, based on current leases the adoption of ASU No. 2016-02 is not expected to have a material impact on the Company's future consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses . This ASU replaces the existing incurred losses methodology with a current expected losses methodology with respect to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, held to maturity investment securities and off-balance sheet commitments. In addition, this ASU requires credit losses relating to available for sale debt securities to be recorded through an allowance for credit losses rather than as a reduction of the carrying amount. ASU No. 2016-13 also changes the accounting for purchased credit-impaired debt securities and loans. The standard retains many of the current disclosure requirements in GAAP and expands disclosure requirements. ASU No. 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Upon adoption, the Company expects a change in the processes and procedures to calculate the allowance for loan losses, including changes in the assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. In addition, the current policy for other-than-temporary impairment on investment securities available for sale will be replaced with an allowance approach. The Company is reviewing the requirements of ASU No. 2016-13 and expects to begin developing and implementing processes and procedures to ensure it is fully compliant with the amendments at the adoption date. At this time, the Company anticipates the allowance for loan losses will increase as a result of the implementation of this ASU; however, until its evaluation is complete, the magnitude of the increase will be unknown. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment. This ASU simplifies the subsequent measurement of goodwill and eliminates Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value of its assets and liabilities (including unrecognized assets and liabilities) at the impairment testing date following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Under ASU No. 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. ASU No. 2017-04 is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early application of this ASU is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of ASU No. 2017-04 is not expected to have a material impact on the Company's future consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The ASU shortens the amortization period for certain callable debt securities held at a premium. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The adoption of ASU No. 2017-08 is not expected to have a material impact on the Company's future consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, Compensation--Stock Compensation (Topic 718): Scope of Modification Accounting. This ASU was issued to provide clarity as to when to apply modification accounting when there is a change in the terms or conditions of a share-based payment award. According to the ASU, an entity should account for the effects of a modification unless the fair value, vesting conditions, and balance sheet classification of the award are the same after the modification as compared to the original award prior to modification. ASU No. 2017-09 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The adoption of ASU No. 2017-09 is not expected to have a material impact on the Company's future consolidated financial statements. (10) U.S. TAX REFORM On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act significantly revises the future ongoing U.S. corporate income tax by, among other things, decreasing U.S. corporate income tax rates to 21.0% from 35.0%. As the Company has a September 30 fiscal year-end, the lower corporate income tax rate will be phased in, resulting in a blended U.S. statutory federal rate of approximately 24.5% for the Company's fiscal year ending September 30, 2018, and 21.0% for subsequent fiscal years. In addition, the reduction of the corporate tax rate required the Company to revalue its deferred tax assets and liabilities based on the lower federal tax rate of 21.0%. As a result of the new legislation, during the quarter ended December 31, 2017, the Company recorded a one-time income tax expense of $548,000 in conjunction with writing down its net deferred tax assets. The impact of using the 24.5% blended federal tax rate for the quarter ended December 31, 2017 versus a 35.0% rate reduced the provision for income taxes by approximately $551,000 . The changes included in the Tax Act are broad and complex. The final transition impacts of the Tax Act may differ from the above estimates, possibly materially, due to, among other things, changes in interpretations of the Tax Act, any legislative action to address questions that arise because of the Tax Act, and any changes in accounting standards for income taxes or related interpretations in response to the Tax Act.

Summary Of Significant Accoun19

Summary Of Significant Accounting Policies (Policies)	3 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The accompanying unaudited consolidated financial statements for Timberland Bancorp, Inc. (“Company”) were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with instructions for Form 10-Q and, therefore, do not include all disclosures necessary for a complete presentation of consolidated financial condition, results of operations, and cash flows in conformity with GAAP. However, all adjustments which are, in the opinion of management, necessary for a fair presentation of the interim consolidated financial statements have been included. All such adjustments are of a normal recurring nature. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended September 30, 2017 (“2017 Form 10-K”). The unaudited consolidated results of operations for the three months ended December 31, 2017 are not necessarily indicative of the results that may be expected for the entire fiscal year ending September 30, 2018.
Principles of Consolidation	Principles of Consolidation: The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Timberland Bank (“Bank”), and the Bank’s wholly-owned subsidiary, Timberland Service Corporation. All significant intercompany transactions and balances have been eliminated in consolidation.
Operating Segment	Operating Segment: The Company has one reportable operating segment which is defined as community banking in western Washington under the operating name, “Timberland Bank.”
Use of Estimates	The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Reclassification	Certain prior period amounts have been reclassified to conform to the December 31, 2017 presentation with no change to net income or total shareholders’ equity as previously reported.
Recent Accounting Pronouncements	In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) . The core principle of this ASU is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In general, the new guidance requires companies to use more judgment and make more estimates than under current guidance, including identifying performance obligations in the contract and estimating the amount of variable consideration to include in the transaction price related to each separate performance obligation. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within that reporting period. The Company's primary source of revenue is interest income, which is recognized when earned and is deemed to be in compliance with this ASU. Accordingly, the adoption of ASU No. 2014-09 is not expected to have a material impact on the Company's future consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . The main provisions of this ASU address the valuation and impairment of certain equity investments along with simplified disclosures about the fair value of financial instruments. The amendments in this ASU are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Management is in the planning stages of developing processes and procedures to comply with the disclosure requirements of this ASU, which could impact the disclosures the Company makes related to the fair value of its financial instruments; however, the adoption of ASU No. 2016-01 is not expected to have a material impact on the Company's future consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) . This ASU is intended to increase transparency and comparability among organizations by requiring the recognition of lease assets and lease liabilities on the balance sheet and disclosure of key information about leasing arrangements. The principal change required by this ASU relates to lessee accounting, and is that for operating leases, a lessee is required to (1) recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position, (2) recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis, and (3) classify all cash payments within operating activities in the statement of cash flows. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. This ASU also changes disclosure requirements related to leasing activities and requires certain qualitative disclosures along with specific quantitative disclosures. The amendments in this ASU are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Early application of the amendments in this ASU is permitted. The effect of adoption will depend on leases at the time of adoption. Once adopted, the Company expects to report higher assets and liabilities as a result of including right-of-use assets and lease liabilities related to certain banking offices and certain equipment under non-cancelable operating lease agreements; however, based on current leases the adoption of ASU No. 2016-02 is not expected to have a material impact on the Company's future consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses . This ASU replaces the existing incurred losses methodology with a current expected losses methodology with respect to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, held to maturity investment securities and off-balance sheet commitments. In addition, this ASU requires credit losses relating to available for sale debt securities to be recorded through an allowance for credit losses rather than as a reduction of the carrying amount. ASU No. 2016-13 also changes the accounting for purchased credit-impaired debt securities and loans. The standard retains many of the current disclosure requirements in GAAP and expands disclosure requirements. ASU No. 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Upon adoption, the Company expects a change in the processes and procedures to calculate the allowance for loan losses, including changes in the assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. In addition, the current policy for other-than-temporary impairment on investment securities available for sale will be replaced with an allowance approach. The Company is reviewing the requirements of ASU No. 2016-13 and expects to begin developing and implementing processes and procedures to ensure it is fully compliant with the amendments at the adoption date. At this time, the Company anticipates the allowance for loan losses will increase as a result of the implementation of this ASU; however, until its evaluation is complete, the magnitude of the increase will be unknown. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment. This ASU simplifies the subsequent measurement of goodwill and eliminates Step 2 from the goodwill impairment test. In computing the implied fair value of goodwill under Step 2, an entity had to perform procedures to determine the fair value of its assets and liabilities (including unrecognized assets and liabilities) at the impairment testing date following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Under ASU No. 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. ASU No. 2017-04 is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early application of this ASU is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of ASU No. 2017-04 is not expected to have a material impact on the Company's future consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The ASU shortens the amortization period for certain callable debt securities held at a premium. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The adoption of ASU No. 2017-08 is not expected to have a material impact on the Company's future consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, Compensation--Stock Compensation (Topic 718): Scope of Modification Accounting. This ASU was issued to provide clarity as to when to apply modification accounting when there is a change in the terms or conditions of a share-based payment award. According to the ASU, an entity should account for the effects of a modification unless the fair value, vesting conditions, and balance sheet classification of the award are the same after the modification as compared to the original award prior to modification. ASU No. 2017-09 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The adoption of ASU No. 2017-09 is not expected to have a material impact on the Company's future consolidated financial statements. (10) U.S. TAX REFORM On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act significantly revises the future ongoing U.S. corporate income tax by, among other things, decreasing U.S. corporate income tax rates to 21.0% from 35.0%. As the Company has a September 30 fiscal year-end, the lower corporate income tax rate will be phased in, resulting in a blended U.S. statutory federal rate of approximately 24.5% for the Company's fiscal year ending September 30, 2018, and 21.0% for subsequent fiscal years. In addition, the reduction of the corporate tax rate required the Company to revalue its deferred tax assets and liabilities based on the lower federal tax rate of 21.0%. As a result of the new legislation, during the quarter ended December 31, 2017, the Company recorded a one-time income tax expense of $548,000 in conjunction with writing down its net deferred tax assets. The impact of using the 24.5% blended federal tax rate for the quarter ended December 31, 2017 versus a 35.0% rate reduced the provision for income taxes by approximately $551,000 . The changes included in the Tax Act are broad and complex. The final transition impacts of the Tax Act may differ from the above estimates, possibly materially, due to, among other things, changes in interpretations of the Tax Act, any legislative action to address questions that arise because of the Tax Act, and any changes in accounting standards for income taxes or related interpretations in response to the Tax Act.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Dec. 31, 2017
Investments [Abstract]
Marketable Securities	Held to maturity and available for sale investment securities have been classified according to management’s intent and were as follows as of December 31, 2017 and September 30, 2017 (dollars in thousands): Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value December 31, 2017 Held to maturity Mortgage-backed securities ("MBS"): U.S. government agencies $ 502 $ 9 $ — $ 511 Private label residential 580 561 (2 ) 1,139 U.S. Treasury and U.S government agency securities 5,995 — (36 ) 5,959 Total $ 7,077 $ 570 $ (38 ) $ 7,609 Available for sale MBS: U.S. government agencies $ 260 $ 15 $ — $ 275 Mutual funds 1,000 — (54 ) 946 Total $ 1,260 $ 15 $ (54 ) $ 1,221 September 30, 2017 Held to maturity MBS: U.S. government agencies $ 532 $ 11 $ (1 ) $ 542 Private label residential 599 596 (2 ) 1,193 U.S. Treasury and U.S. government agency securities 6,008 10 (9 ) 6,009 Total $ 7,139 $ 617 $ (12 ) $ 7,744 Available for sale MBS: U.S. government agencies $ 271 $ 18 $ — $ 289 Mutual funds 1,000 — (48 ) 952 Total $ 1,271 $ 18 $ (48 ) $ 1,241
Unrealized Gain (Loss) on Investments	December 31, 2017 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Held to maturity MBS: U.S. government agencies $ 8 $ — 2 $ 74 $ — 5 $ 82 $ — Private label residential — — — 81 (2 ) 10 81 (2 ) U.S. Treasury and U.S. government agency securities 5,959 (36 ) 2 — — — 5,959 (36 ) Total $ 5,967 $ (36 ) 4 $ 155 $ (2 ) 15 $ 6,122 $ (38 ) Available for sale Mutual funds $ — $ — — $ 946 $ (54 ) 1 $ 946 $ (54 ) Total $ — $ — — $ 946 $ (54 ) 1 $ 946 $ (54 ) Held to maturity and available for sale investment securities with unrealized losses were as follows for September 30, 2017 (dollars in thousands): Less Than 12 Months 12 Months or Longer Total Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Quantity Estimated Fair Value Gross Unrealized Losses Held to maturity MBS: U.S. government agencies $ — $ — — $ 114 $ (1 ) 6 $ 114 $ (1 ) Private label residential — — — 85 (2 ) 10 85 (2 ) U.S. Treasury and U.S. government agency securities 2,984 (9 ) 1 — — — 2,984 (9 ) Total $ 2,984 $ (9 ) 1 $ 199 $ (3 ) 16 $ 3,183 $ (12 ) Available for sale Mutual funds $ — $ — — $ 952 $ (48 ) 1 $ 952 $ (48 ) Total $ — $ — — $ 952 $ (48 ) 1 $ 952 $ (48 )
Schedule of Significant Inputs Utilized to Measure Estimate of Credit Loss Component on OTTI Securities	The following table presents a summary of the significant inputs utilized to measure management’s estimates of the credit loss component on OTTI securities as of December 31, 2017 and 2016: Range Weighted Minimum Maximum Average December 31, 2017 Constant prepayment rate 6.00 % 15.00 % 9.91 % Collateral default rate — % 11.08 % 4.77 % Loss severity rate — % 62.00 % 37.32 % December 31, 2016 Constant prepayment rate 6.00 % 15.00 % 12.28 % Collateral default rate 0.34 % 13.35 % 5.66 % Loss severity rate 5.00 % 81.00 % 46.05 %
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table presents a roll forward of the credit loss component of held to maturity and available for sale debt securities that have been written down for OTTI with the credit loss component recognized in earnings for the three months ended December 31, 2017 and 2016 (dollars in thousands): Three Months Ended December 31, 2017 2016 Beginning balance of credit loss $ 1,301 $ 1,505 Additions: Additional increases to the amount related to credit loss for which OTTI was previously recognized 6 — Subtractions: Realized losses previously recorded as credit losses (22 ) (13 ) Recovery of prior credit loss (26 ) — Ending balance of credit loss $ 1,259 $ 1,492
Schedule of Contractual Maturities of Debt Securities	The contractual maturities of debt securities at December 31, 2017 were as follows (dollars in thousands). Expected maturities may differ from scheduled maturities due to the prepayment of principal or call provisions. Held to Maturity Available for Sale Amortized Cost Estimated Fair Value Amortized Cost Estimated Fair Value Due after one year to five years $ 5,997 $ 5,961 $ — $ — Due after five years to ten years 34 34 — — Due after ten years 1,046 1,614 260 275 Total $ 7,077 $ 7,609 $ 260 $ 275

Loans Receivable And Allowanc21

Loans Receivable And Allowance For Loan Losses (Tables)	3 Months Ended
	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Schedule of Loans receivable and Loans held for sale	Loans receivable by portfolio segment consisted of the following at December 31, 2017 and September 30, 2017 (dollars in thousands): December 31, September 30, Amount Percent Amount Percent Mortgage loans: One- to four-family (1) $ 116,976 14.6 % $ 118,147 15.1 % Multi-family 61,366 7.7 58,607 7.5 Commercial 333,085 41.8 328,927 41.9 Construction - custom and owner/builder 123,365 15.5 117,641 15.0 Construction - speculative one- to four-family 7,253 0.9 9,918 1.2 Construction - commercial 22,000 2.8 19,630 2.5 Construction - multi-family 24,601 3.1 21,327 2.7 Land 21,122 2.7 23,910 3.0 Total mortgage loans 709,768 89.1 698,107 88.9 Consumer loans: Home equity and second mortgage 38,975 4.9 38,420 4.9 Other 4,050 0.5 3,823 0.5 Total consumer loans 43,025 5.4 42,243 5.4 Commercial business loans (2) 43,993 5.5 44,444 5.7 Total loans receivable 796,786 100.0 % 784,794 100.0 % Less: Undisbursed portion of construction loans in process 79,449 82,411 Deferred loan origination fees, net 2,504 2,466 Allowance for loan losses 9,565 9,553 91,518 94,430 Loans receivable, net $ 705,268 $ 690,364 _____________________________ (1) Does not include one- to four-family loans held for sale totaling $ 3,236 and $3,515 at December 31, 2017 and September 30, 2017, respectively. (2) Does not include commercial business loans held for sale totaling $171 and $84 at December 31, 2017 and September 30, 2017, respectively.
Schedule of Allowance for Loan Losses	The following tables set forth information for the three months ended December 31, 2017 and 2016 regarding activity in the allowance for loan losses by portfolio segment (dollars in thousands): Three Months Ended December 31, 2017 Beginning Allowance Provision for (Recapture of) Loan Losses Charge- offs Recoveries Ending Allowance Mortgage loans: One- to four-family $ 1,082 $ 43 $ — $ — $ 1,125 Multi-family 447 (17 ) — — 430 Commercial 4,184 (91 ) — — 4,093 Construction – custom and owner/builder 699 89 — — 788 Construction – speculative one- to four-family 128 (61 ) — 8 75 Construction – commercial 303 93 — — 396 Construction – multi-family 173 55 — — 228 Land 918 (142 ) — 4 780 Consumer loans: Home equity and second mortgage 983 (25 ) — — 958 Other 121 8 (1 ) 1 129 Commercial business loans 515 48 — — 563 Total $ 9,553 $ — $ (1 ) $ 13 $ 9,565 Three Months Ended December 31, 2016 Beginning Allowance Provision for (Recapture of) Loan Losses Charge- offs Recoveries Ending Allowance Mortgage loans: One- to four-family $ 1,239 $ (83 ) $ — $ 21 $ 1,177 Multi-family 473 (73 ) — — 400 Commercial 4,384 144 (5 ) — 4,523 Construction – custom and owner/builder 619 17 — — 636 Construction – speculative one- to four-family 130 (30 ) — — 100 Construction – commercial 268 14 — — 282 Construction – multi-family 316 69 — — 385 Land 820 13 (2 ) 5 836 Consumer loans: Home equity and second mortgage 939 (80 ) — — 859 Other 156 2 (3 ) 1 156 Commercial business loans 482 7 — — 489 Total $ 9,826 $ — $ (10 ) $ 27 $ 9,843
Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in the allowance for loan losses	The following tables present information on the loans evaluated individually and collectively for impairment in the allowance for loan losses by portfolio segment at December 31, 2017 and September 30, 2017 (dollars in thousands): Allowance for Loan Losses Recorded Investment in Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Individually Evaluated for Impairment Collectively Evaluated for Impairment Total December 31, 2017 Mortgage loans: One- to four-family $ 1 $ 1,124 $ 1,125 $ 1,467 $ 115,509 $ 116,976 Multi-family — 430 430 — 61,366 61,366 Commercial 16 4,077 4,093 4,044 329,041 333,085 Construction – custom and owner/builder — 788 788 — 71,548 71,548 Construction – speculative one- to four-family — 75 75 — 2,723 2,723 Construction – commercial — 396 396 — 14,390 14,390 Construction – multi-family — 228 228 — 9,109 9,109 Land 72 708 780 944 20,178 21,122 Consumer loans: Home equity and second mortgage 291 667 958 484 38,491 38,975 Other — 129 129 4,050 4,050 Commercial business loans 55 508 563 181 43,812 43,993 Total $ 435 $ 9,130 $ 9,565 $ 7,120 $ 710,217 $ 717,337 September 30, 2017 Mortgage loans: One- to four-family $ — $ 1,082 $ 1,082 $ 1,443 $ 116,704 $ 118,147 Multi-family — 447 447 — 58,607 58,607 Commercial 26 4,158 4,184 3,873 325,054 328,927 Construction – custom and owner/builder — 699 699 — 63,538 63,538 Construction – speculative one- to four-family — 128 128 — 4,639 4,639 Construction – commercial — 303 303 — 11,016 11,016 Construction – multi-family — 173 173 — 6,912 6,912 Land 125 793 918 1,119 22,791 23,910 Consumer loans: Home equity and second mortgage 325 658 983 557 37,863 38,420 Other — 121 121 — 3,823 3,823 Commercial business loans — 515 515 — 44,444 44,444 Total $ 476 $ 9,077 $ 9,553 $ 6,992 $ 695,391 $ 702,383
Past Due Status of Loans Receivable	The following tables present an analysis of loans by aging category and portfolio segment at December 31, 2017 and September 30, 2017 (dollars in thousands): 30–59 Days Past Due 60-89 Days Past Due Non- Accrual (1) Past Due 90 Days or More and Still Accruing Total Past Due Current Total Loans December 31, 2017 Mortgage loans: One- to four-family $ 325 $ — $ 947 $ — $ 1,272 $ 115,704 $ 116,976 Multi-family — — — — — 61,366 61,366 Commercial 502 — 402 — 904 332,181 333,085 Construction – custom and owner/builder — — — — — 71,548 71,548 Construction – speculative one- to four- family — — — — — 2,723 2,723 Construction – commercial — — — — — 14,390 14,390 Construction – multi-family — — — — — 9,109 9,109 Land 43 — 395 — 438 20,684 21,122 Consumer loans: Home equity and second mortgage 101 — 188 — 289 38,686 38,975 Other — 36 — — 36 4,014 4,050 Commercial business loans — — 181 — 181 43,812 43,993 Total $ 971 $ 36 $ 2,113 $ — $ 3,120 $ 714,217 $ 717,337 September 30, 2017 Mortgage loans: One- to four-family $ 193 $ — $ 874 $ — $ 1,067 $ 117,080 $ 118,147 Multi-family — — — — — 58,607 58,607 Commercial — 107 213 — 320 328,607 328,927 Construction – custom and owner/ — — — — — 63,538 63,538 Construction – speculative one- to four- family — — — — — 4,639 4,639 Construction – commercial — — — — — 11,016 11,016 Construction – multi-family — — — — — 6,912 6,912 Land — — 566 — 566 23,344 23,910 Consumer loans: Home equity and second mortgage 56 — 258 — 314 38,106 38,420 Other 36 — — — 36 3,787 3,823 Commercial business loans 110 — — — 110 44,334 44,444 Total $ 395 $ 107 $ 1,911 $ — $ 2,413 $ 699,970 $ 702,383 ______________________ (1) Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual.
Financing Receivable Credit Quality Indicators	The following tables present an analysis of loans by credit quality indicator and portfolio segment at December 31, 2017 and September 30, 2017 (dollars in thousands): Loan Grades December 31, 2017 Pass Watch Special Substandard Total Mortgage loans: One- to four-family $ 113,235 $ 902 $ 595 $ 2,244 $ 116,976 Multi-family 61,366 — — — 61,366 Commercial 322,737 6,028 3,522 798 333,085 Construction – custom and owner/builder 70,989 559 — — 71,548 Construction – speculative one- to four-family 2,723 — — — 2,723 Construction – commercial 14,390 — — — 14,390 Construction – multi-family 9,109 — — — 9,109 Land 17,929 1,014 1,784 395 21,122 Consumer loans: Home equity and second mortgage 38,463 149 — 363 38,975 Other 4,014 — — 36 4,050 Commercial business loans 43,728 29 55 181 43,993 Total $ 698,683 $ 8,681 $ 5,956 $ 4,017 $ 717,337 September 30, 2017 Mortgage loans: One- to four-family $ 115,481 $ 422 $ 644 $ 1,600 $ 118,147 Multi-family 56,857 — 1,750 — 58,607 Commercial 318,717 6,059 3,540 611 328,927 Construction – custom and owner/builder 63,210 328 — — 63,538 Construction – speculative one- to four-family 4,639 — — — 4,639 Construction – commercial 11,016 — — — 11,016 Construction – multi-family 6,912 — — — 6,912 Land 20,528 1,022 1,794 566 23,910 Consumer loans: Home equity and second mortgage 37,828 152 — 440 38,420 Other 3,787 — — 36 3,823 Commercial business loans 43,416 973 55 — 44,444 Total $ 682,391 $ 8,956 $ 7,783 $ 3,253 $ 702,383
Impaired Loans Receivable	The following table is a summary of information related to impaired loans by portfolio segment as of December 31, 2017 and for the three months then ended (dollars in thousands): Recorded Investment Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Allowance Year to Date ("YTD") Average Recorded Investment (1) YTD Interest Income Recognized (1) YTD Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 1,423 $ 1,569 $ — $ 1,433 $ 19 $ 16 Commercial 2,151 2,151 — 2,059 24 17 Land 45 141 — 171 — — Consumer loans: Home equity and second mortgage 188 188 — 156 2 2 Subtotal 3,807 4,049 — 3,819 45 35 With an allowance recorded: Mortgage loans: One- to four-family 44 44 1 22 — — Commercial 1,893 1,893 16 1,900 27 21 Land 899 899 72 861 9 8 Consumer loans: Home equity and second mortgage 296 296 291 365 6 5 Commercial business loans 181 181 55 91 — — Subtotal 3,313 3,313 435 3,239 42 34 Total: Mortgage loans: One- to four-family 1,467 1,613 1 1,455 19 16 Commercial 4,044 4,044 16 3,959 51 38 Land 944 1,040 72 1,032 9 8 Consumer loans: Home equity and second mortgage 484 484 291 521 8 7 Commercial business loans 181 181 55 91 — — Total $ 7,120 $ 7,362 $ 435 $ 7,058 $ 87 $ 69 ______________________________________________ (1) For the three months ended December 31, 2017 . The following table is a summary of information related to impaired loans by portfolio segment as of and for the year ended September 30, 2017 (dollars in thousands): Recorded Investment Unpaid Principal Balance (Loan Balance Plus Charge Off) Related Allowance Average Recorded Investment (1) Interest Income Recognized (1) Cash Basis Interest Income Recognized (1) With no related allowance recorded: Mortgage loans: One- to four-family $ 1,443 $ 1,589 $ — $ 1,108 $ 68 $ 62 Commercial 1,967 1,967 — 3,901 188 143 Construction – custom and owner/builder — — — 147 7 7 Land 297 410 — 512 8 6 Consumer loans: Home equity and second mortgage 123 123 — 284 — — Commercial business loans — — — 11 — — Subtotal 3,830 4,089 — 5,963 271 218 With an allowance recorded: Mortgage loans: One- to four-family — — — 721 50 38 Commercial 1,906 1,906 26 3,326 182 144 Land 822 881 125 666 35 29 Consumer loans: Home equity and second mortgage 434 434 325 530 29 26 Other — — — 17 — — Subtotal 3,162 3,221 476 5,260 296 237 Total: Mortgage loans: One- to four-family 1,443 1,589 — 1,829 118 100 Commercial 3,873 3,873 26 7,227 370 287 Construction – custom and owner/builder — — — 147 7 7 Land 1,119 1,291 125 1,178 43 35 Consumer loans: Home equity and second mortgage 557 557 325 814 29 26 Other — — — 17 — — Commercial business loans — — — 11 — — Total $ 6,992 $ 7,310 $ 476 $ 11,223 $ 567 $ 455 ______________________________________________ (1) For the year ended September 30, 2017.
Schedule of Troubled Debt Restructured Loans by Interest Accrual Status	The following tables set forth information with respect to the Company’s TDRs by interest accrual status as of December 31, 2017 and September 30, 2017 (dollars in thousands): December 31, 2017 Accruing Non- Accrual Total Mortgage loans: One- to four-family $ 520 $ 44 $ 564 Commercial 2,214 — 2,214 Land 548 155 703 Total $ 3,282 $ 199 $ 3,481 September 30, 2017 Accruing Non- Accrual Total Mortgage loans: One- to four-family $ 569 $ — $ 569 Commercial 2,219 — 2,219 Land 554 253 807 Total $ 3,342 $ 253 $ 3,595

Net Income Per Common Share (Ta

Net Income Per Common Share (Tables)	3 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings per Share	Information regarding the calculation of basic and diluted net income per common share for the three months ended December 31, 2017 and 2016 is as follows (dollars in thousands, except per share amounts): Three Months Ended 2017 2016 Basic net income per common share computation Numerator – net income $ 3,614 $ 3,147 Denominator – weighted average common shares outstanding 7,312,531 6,862,749 Basic net income per common share $ 0.49 $ 0.46 Diluted net income per common share computation Numerator – net income $ 3,614 $ 3,147 Denominator – weighted average common shares outstanding 7,312,531 6,862,749 Effect of dilutive stock options (1) 195,638 139,493 Effect of dilutive stock warrant (2) — 233,273 Weighted average common shares outstanding - assuming dilution 7,508,169 7,235,515 Diluted net income per common share $ 0.48 $ 0.43 ____________________________________________ (1) For the three months ended December 31, 2017, average options to purchase 14,651 shares of common stock were outstanding but not included in the computation of diluted net income per common share because their effect would have been anti-dilutive. For the three months ended December 31, 2016, all outstanding options were included in the computation of diluted net income per share. (2) Represented a warrant to purchase 370,899 shares of the Company's common stock at an exercise price of $6.73 per share (subject to anti-dilution adjustments) at any time through December 23, 2018 (the "Warrant"). The Warrant was granted on December 23, 2008 to the U.S. Treasury Department ("Treasury") as part of the Company's participation in the Treasury's Troubled Asset Relief Program ("TARP"). On June 12, 2013, the Treasury sold the Warrant to private investors. On January 31, 2017, the Warrant was exercised and 370,899 shares of the Company's common stock were issued in exchange for $2.50 million .

Accumulated Other Comprehensi23

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The changes in accumulated other comprehensive loss ("AOCI") by component during the three months ended December 31, 2017 and 2016 are as follows (dollars in thousands): Three Months Ended December 31, 2017 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ (19 ) $ (105 ) $ (124 ) Net change (7 ) (5 ) (12 ) Balance of AOCI at the end of period $ (26 ) $ (110 ) $ (136 ) Three Months Ended December 31, 2016 Changes in fair value of available for sale securities (1) Changes in OTTI on held to maturity securities (1) Total (1) Balance of AOCI at the beginning of period $ 4 $ (179 ) $ (175 ) Net change (27 ) 13 (14 ) Balance of AOCI at the end of period $ (23 ) $ (166 ) $ (189 ) __________________________ (1) All amounts are net of income taxes.

Stock Compensation Plans (Table

Stock Compensation Plans (Tables)	3 Months Ended
	Dec. 31, 2017
Share-based Compensation [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	for the three months ended December 31, 2017 and 2016 is summarized as follows: Three Months Ended Three Months Ended Number of Shares Weighted Average Exercise Price Number of Shares Weighted Average Exercise Price Options outstanding, beginning of period 380,120 $ 13.23 373,130 $ 9.82 Exercised (6,250 ) 9.65 (12,700 ) 6.31 Forfeited (4,300 ) 11.66 — — Options outstanding, end of period 369,570 $ 13.31 360,430 $ 9.94
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	Additional information regarding options outstanding at December 31, 2017 is as follows: Options Outstanding Options Exercisable Range of Exercise Prices ($) Number Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Number Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) $ 4.01 - 4.55 10,000 $ 4.28 2.9 10,000 $ 4.28 2.9 5.86 - 6.00 39,000 5.94 4.8 39,000 5.94 4.8 9.00 78,000 9.00 5.8 59,800 9.00 5.8 10.26 - 10.71 131,520 10.57 7.3 48,070 10.56 7.2 15.67 53,050 15.67 8.8 9,450 15.67 8.8 29.69 58,000 29.69 9.8 — N/A N/A 369,570 $ 13.31 7.2 166,320 $ 8.83 6.0

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis	The Company's assets measured at estimated fair value on a recurring basis at December 31, 2017 and September 30, 2017 were as follows (dollars in thousands): December 31, 2017 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 275 $ — $ 275 Mutual funds 946 — — 946 Total $ 946 $ 275 $ — $ 1,221 September 30, 2017 Estimated Fair Value Level 1 Level 2 Level 3 Total Available for sale investment securities MBS: U.S. government agencies $ — $ 289 $ — $ 289 Mutual funds 952 — — 952 Total $ 952 $ 289 $ — $ 1,241
Balances of Assets Measured at Estimated Fair Value, Nonrecurring Basis	The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at September 30, 2017 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: Commercial $ — $ — $ 1,880 Land — — 697 Consumer loans: Home equity and second mortgage — — 109 Total impaired loans — — 2,686 Investment securities – held to maturity: MBS - private label residential — 125 — OREO and other repossessed assets — — 3,301 Total $ — $ 125 $ 5,987 The following table summarizes the balances of assets measured at estimated fair value on a non-recurring basis at December 31, 2017 (dollars in thousands): Estimated Fair Value Level 1 Level 2 Level 3 Impaired loans: Mortgage loans: One- to four-family $ — $ — $ 43 Commercial — — 1,877 Land — — 827 Consumer loans: Home equity and second mortgage — — 5 Commercial business loans — — 126 Total impaired loans — — 2,878 Investment securities – held to maturity: MBS - private label residential — 112 — OREO and other repossessed assets — — 2,887 Total $ — $ 112 $ 5,765
Level 3 Fair Value Measurements, Nonrecurring Basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of September 30, 2017 (dollars in thousands): Estimated Fair Value Valuation Technique(s) Unobservable Input(s) Range Impaired loans $ 2,686 Market approach Appraised value less selling costs NA OREO and other repossessed assets $ 3,301 Market approach Lower of appraised value or listing price less selling costs NA The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis as of December 31, 2017 (dollars in thousands): Estimated Fair Value Valuation Technique(s) Unobservable Input(s) Range Impaired loans $ 2,878 Market approach Appraised value less selling costs NA OREO and other repossessed assets $ 2,887 Market approach Lower of appraised value or listing price less selling costs NA
Balances of Assets and Liabilities Measured at Estimated Fair Value, Recurring Basis	The recorded amounts and estimated fair values of financial instruments were as follows as of December 31, 2017 and September 30, 2017 (dollars in thousands): December 31, 2017 Fair Value Measurements Using: Recorded Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 166,207 $ 166,207 $ 166,207 $ — $ — CDs held for investment 53,528 53,528 53,528 — — Investment securities 8,298 8,830 3,910 4,920 — FHLB stock 1,107 1,107 1,107 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,407 3,501 3,501 — — Loans receivable, net 705,268 697,940 — — 697,940 Accrued interest receivable 2,743 2,743 2,743 — — Financial liabilities Deposits: Non-interest-bearing demand 210,108 210,108 210,108 — — Interest-bearing 665,966 665,783 528,543 — 137,240 Total deposits 876,074 875,891 738,651 — 137,240 Accrued interest payable 178 178 178 — — September 30, 2017 Fair Value Measurements Using: Recorded Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets Cash and cash equivalents $ 148,188 $ 148,188 $ 148,188 $ — $ — CDs held for investment 43,034 43,034 43,034 — — Investment securities 8,380 8,985 3,954 5,031 — FHLB stock 1,107 1,107 1,107 — — Other investments 3,000 3,000 3,000 — — Loans held for sale 3,599 3,619 3,619 — — Loans receivable, net 690,364 688,332 — — 688,332 Accrued interest receivable 2,520 2,520 2,520 — — Financial liabilities Deposits: Non-interest-bearing demand 205,952 205,952 205,952 — — Interest-bearing 631,946 632,629 492,305 — 140,324 Total deposits 837,898 838,581 698,257 — 140,324 Accrued interest payable 161 161 161 — —

Summary Of Significant Accoun26

Summary Of Significant Accounting Policies (Details)	3 Months Ended
	Dec. 31, 2017segment
Accounting Policies [Abstract]
Number of operating segments	1

Investment Securities_ Marketab

Investment Securities: Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Held to maturity
Amortized Cost	$ 7,077	$ 7,139
Gross Unrealized Gains	570	617
Gross Unrealized Losses	(38)	(12)
Estimated Fair Value	7,609	7,744
Available for sale
Amortized Cost	1,260	1,271
Gross Unrealized Gains	15	18
Gross Unrealized Losses	(54)	(48)
Estimated Fair Value	1,221	1,241
Mortgage-backed Securities, U.S. government agencies
Held to maturity
Amortized Cost	502	532
Gross Unrealized Gains	9	11
Gross Unrealized Losses	0	(1)
Estimated Fair Value	511	542
Available for sale
Amortized Cost	260	271
Gross Unrealized Gains	15	18
Gross Unrealized Losses	0	0
Estimated Fair Value	275	289
Mortgage-backed Securities, Private label residential
Held to maturity
Amortized Cost	580	599
Gross Unrealized Gains	561	596
Gross Unrealized Losses	(2)	(2)
Estimated Fair Value	1,139	1,193
U.S. Treasury and U.S government agency securities
Held to maturity
Amortized Cost	5,995	6,008
Gross Unrealized Gains	0	10
Gross Unrealized Losses	(36)	(9)
Estimated Fair Value	5,959	6,009
Mutual funds
Available for sale
Amortized Cost	1,000	1,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(54)	(48)
Estimated Fair Value	$ 946	$ 952

Investment Securities_ Unrealiz

Investment Securities: Unrealized Gain (Loss) on Investments (Details) $ in Thousands	Dec. 31, 2017USD ($)security	Sep. 30, 2017USD ($)security
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 5,967	$ 2,984
Held to maturity, 12 Months or Longer, Estimated Fair Value	155	199
Held to maturity, Total, Estimated Fair Value	6,122	3,183
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(36)	(9)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	(2)	(3)
Held to maturity, Total, Gross Unrealized Losses	$ (38)	$ (12)
Held to maturity, Less Than 12 Months, Quantity | security	4	1
Held to maturity, 12 Months or Longer, Quantity | security	15	16
Available-for-sale Securities, Fair Value:
Available for sale, Less Than 12 Months, Estimated Fair Value	$ 0	$ 0
Available for sale, 12 Months or Longer, Estimated Fair Value	946	952
Available for sale, Total, Estimated Fair Value	946	952
Available-for-sale Securities, Gross Unrealized Losses:
Available for sale, Less Than 12 Months, Gross Unrealized Losses	0	0
Available for sale, 12 Months or Longer, Gross Unrealized Losses	(54)	(48)
Available for sale, Total, Gross Unrealized Losses	$ (54)	$ (48)
Available-for-sale, Less than 12 Months, Quantity | security	0	0
Available-for-sale, 12 Months or Longer, Quantity | security	1	1
Mortgage-backed Securities, U.S. government agencies
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 8	$ 0
Held to maturity, 12 Months or Longer, Estimated Fair Value	74	114
Held to maturity, Total, Estimated Fair Value	82	114
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	0	0
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	0	(1)
Held to maturity, Total, Gross Unrealized Losses	$ 0	$ (1)
Held to maturity, Less Than 12 Months, Quantity | security	2	0
Held to maturity, 12 Months or Longer, Quantity | security	5	6
Mortgage-backed Securities, Private label residential
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 0	$ 0
Held to maturity, 12 Months or Longer, Estimated Fair Value	81	85
Held to maturity, Total, Estimated Fair Value	81	85
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	0	0
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	(2)	(2)
Held to maturity, Total, Gross Unrealized Losses	$ (2)	$ (2)
Held to maturity, Less Than 12 Months, Quantity | security	0	0
Held to maturity, 12 Months or Longer, Quantity | security	10	10
U.S. Treasury and U.S. government agency securities
Held-to-maturity Securities, Fair Value:
Held to maturity, Less Than 12 Months, Estimated Fair Value	$ 5,959	$ 2,984
Held to maturity, 12 Months or Longer, Estimated Fair Value	0	0
Held to maturity, Total, Estimated Fair Value	5,959	2,984
Held-to-maturity Securities, Gross Unrealized Losses
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	(36)	(9)
Held to maturity, 12 Months or Longer, Gross Unrealized Losses	0	0
Held to maturity, Total, Gross Unrealized Losses	$ (36)	$ (9)
Held to maturity, Less Than 12 Months, Quantity | security	2	1
Held to maturity, 12 Months or Longer, Quantity | security	0	0
Mutual funds
Available-for-sale Securities, Fair Value:
Available for sale, Less Than 12 Months, Estimated Fair Value	$ 0	$ 0
Available for sale, 12 Months or Longer, Estimated Fair Value	946	952
Available for sale, Total, Estimated Fair Value	946	952
Available-for-sale Securities, Gross Unrealized Losses:
Available for sale, Less Than 12 Months, Gross Unrealized Losses	0	0
Available for sale, 12 Months or Longer, Gross Unrealized Losses	(54)	(48)
Available for sale, Total, Gross Unrealized Losses	$ (54)	$ (48)
Available-for-sale, Less than 12 Months, Quantity | security	0	0
Available-for-sale, 12 Months or Longer, Quantity | security	1	1

Investment Securities_ Schedule

Investment Securities: Schedule of significant inputs utilized to measure management's estimate of the credit loss component on OTTI securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Recoveries (other than temporary impairment OTTI) on investment securities	$ (27)	$ 0
Net recoveries on investment securities	(22)	0
Held-to-maturity Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Recoveries (other than temporary impairment OTTI) on investment securities	(27)	0
Held to Maturity - adjustment for portion of OTTI recorded as OCI before income taxes	5	0
Net recoveries on investment securities	(22)	0
Available-for-sale Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
AFS - OTTI	0	0
AFS - - adjustment for portion of OTTI recorded as OCI before income taxes	0	0
AFS - Net OTTI recognized in earnings	$ 0	$ 0
Minimum
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	6.00%	6.00%
OTTI significant inputs - Collateral default rate	0.00%	0.34%
OTTI significant inputs - Loss severity rate	0.00%	5.00%
Maximum
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	15.00%	15.00%
OTTI significant inputs - Collateral default rate	11.08%	13.35%
OTTI significant inputs - Loss severity rate	62.00%	81.00%
Weighted Average
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
OTTI significant inputs - Constant prepayment rate	9.91%	12.28%
OTTI significant inputs - Collateral default rate	4.77%	5.66%
OTTI significant inputs - Loss severity rate	37.32%	46.05%

Investment Securities_ Other th

Investment Securities: Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance of credit loss	$ 1,301	$ 1,505
Additional increases to the amount related to credit loss for which OTTI was previously recognized	6	0
Realized losses previously recorded as credit losses	(22)	(13)
Recovery of prior credit loss	(26)	0
Ending balance of credit loss	$ 1,259	$ 1,492

Investment Securities_ Narrativ

Investment Securities: Narrative-Realized Gains (Losses) (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2017USD ($)security	Dec. 31, 2016USD ($)security	Sep. 30, 2017USD ($)
Investments [Abstract]
Loss on sale of securities	$ 22	$ 13
Held-to-maturity securities, realized loss, number of securities | security	12	11
Security owned and pledged as collateral	$ 6,770		$ 6,820

Investment Securities_ Schedu32

Investment Securities: Schedule of Contractual maturities of debt securities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Held-to-maturity Securities, Amortized Cost:
Due after one year to five years	$ 5,997
Due after five years to ten years	34
Due after ten years	1,046
Total	7,077	$ 7,139	[1]
Held-to-maturity Securities, Estimated Fair Value:
Due after one year to five years	5,961
Due after five years to ten years	34
Due after ten years	1,614
Total	7,609	$ 7,744
Available-for-sale Securities, Amortized Cost:
Due after one year to five years	0
Due after five years to ten years	0
Due after ten years	260
Total	260
Available-for-sale Securities, Estimated Fair Value:
Due after one year to five years	0
Due after five years to ten years	0
Due after ten years	275
Total	$ 275
[1]	Derived from audited consolidated financial statements.

Loans Receivable And Allowanc33

Loans Receivable And Allowance For Loan Losses: Schedule of Loans receivable and Loans held for sale (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 796,786	$ 784,794
Undisbursed portion of construction loans in process	79,449	82,411
Deferred loan origination fees, net	2,504	2,466
Allowance for loan losses	9,565	9,553
Less: Loans in process, Deferred fees and Allowance for loan losses	91,518	94,430
Loans receivable, net	$ 705,268	$ 690,364	[1]
Ratio of loan category to total loans receivable (percent)	100.00%	100.00%
Total mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 709,768	$ 698,107
Ratio of loan category to total loans receivable (percent)	89.10%	88.90%
Mortgage loans, one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 116,976	$ 118,147
Ratio of loan category to total loans receivable (percent)	14.60%	15.10%
Mortgage loans, multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 61,366	$ 58,607
Ratio of loan category to total loans receivable (percent)	7.70%	7.50%
Mortgage loans, commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 333,085	$ 328,927
Ratio of loan category to total loans receivable (percent)	41.80%	41.90%
Mortgage loans, construction - custom and owner/builder
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 123,365	$ 117,641
Ratio of loan category to total loans receivable (percent)	15.50%	15.00%
Mortgage loans, construction - speculative one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 7,253	$ 9,918
Ratio of loan category to total loans receivable (percent)	0.90%	1.20%
Mortgage loans, construction – commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 22,000	$ 19,630
Ratio of loan category to total loans receivable (percent)	2.80%	2.50%
Mortgage loans, construction - Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 24,601	$ 21,327
Ratio of loan category to total loans receivable (percent)	3.10%	2.70%
Mortgage loans, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans	$ 21,122	$ 23,910
Ratio of loan category to total loans receivable (percent)	2.70%	3.00%
Total consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 43,025	$ 42,243
Ratio of loan category to total loans receivable (percent)	5.40%	5.40%
Consumer loans, home equity and second mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 38,975	$ 38,420
Ratio of loan category to total loans receivable (percent)	4.90%	4.90%
Consumer loans, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans	$ 4,050	$ 3,823
Ratio of loan category to total loans receivable (percent)	0.50%	0.50%
Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial business loans (2)	$ 43,993	$ 44,444
Ratio of loan category to total loans receivable (percent)	5.50%	5.70%
[1]	Derived from audited consolidated financial statements.

Loans Receivable And Allowanc34

Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	$ 9,553	$ 9,826
Provision for (Recapture of) Loan Losses	0	0
Charge- offs	(1)	(10)
Recoveries	13	27
Allowance for loan losses, Ending Allowance	9,565	9,843
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,082	1,239
Provision for (Recapture of) Loan Losses	43	(83)
Charge- offs	0	0
Recoveries	0	21
Allowance for loan losses, Ending Allowance	1,125	1,177
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	447	473
Provision for (Recapture of) Loan Losses	(17)	(73)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	430	400
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	4,184	4,384
Provision for (Recapture of) Loan Losses	(91)	144
Charge- offs	0	(5)
Recoveries	0	0
Allowance for loan losses, Ending Allowance	4,093	4,523
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	699	619
Provision for (Recapture of) Loan Losses	89	17
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	788	636
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	128	130
Provision for (Recapture of) Loan Losses	(61)	(30)
Charge- offs	0	0
Recoveries	8	0
Allowance for loan losses, Ending Allowance	75	100
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	303	268
Provision for (Recapture of) Loan Losses	93	14
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	396	282
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	173	316
Provision for (Recapture of) Loan Losses	55	69
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	228	385
Mortgage loans, land
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	918	820
Provision for (Recapture of) Loan Losses	(142)	13
Charge- offs	0	(2)
Recoveries	4	5
Allowance for loan losses, Ending Allowance	780	836
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	983	939
Provision for (Recapture of) Loan Losses	(25)	(80)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	958	859
Consumer loans, other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	121	156
Provision for (Recapture of) Loan Losses	8	2
Charge- offs	(1)	(3)
Recoveries	1	1
Allowance for loan losses, Ending Allowance	129	156
Commercial business loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	515	482
Provision for (Recapture of) Loan Losses	48	7
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	$ 563	$ 489

Loans Receivable And Allowanc35

Loans Receivable And Allowance For Loan Losses: Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in the allowance for loan losses (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	$ 435	$ 476
Allowance for Loan Losses, Collectively Evaluated for Impairment	9,130	9,077
Allowance for Loan Losses, Total	9,565	9,553	$ 9,843	$ 9,826
Recorded Investment in Loans, Individually Evaluated for Impairment	7,120	6,992
Recorded Investment in Loans, Collectively Evaluated for Impairment	710,217	695,391
Loans receivable	717,337	702,383
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	1	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	1,124	1,082
Allowance for Loan Losses, Total	1,125	1,082	1,177	1,239
Recorded Investment in Loans, Individually Evaluated for Impairment	1,467	1,443
Recorded Investment in Loans, Collectively Evaluated for Impairment	115,509	116,704
Loans receivable	116,976	118,147
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	430	447
Allowance for Loan Losses, Total	430	447	400	473
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	61,366	58,607
Loans receivable	61,366	58,607
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	16	26
Allowance for Loan Losses, Collectively Evaluated for Impairment	4,077	4,158
Allowance for Loan Losses, Total	4,093	4,184	4,523	4,384
Recorded Investment in Loans, Individually Evaluated for Impairment	4,044	3,873
Recorded Investment in Loans, Collectively Evaluated for Impairment	329,041	325,054
Loans receivable	333,085	328,927
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	788	699
Allowance for Loan Losses, Total	788	699	636	619
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	71,548	63,538
Loans receivable	71,548	63,538
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	75	128
Allowance for Loan Losses, Total	75	128	100	130
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	2,723	4,639
Loans receivable	2,723	4,639
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	396	303
Allowance for Loan Losses, Total	396	303	282	268
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	14,390	11,016
Loans receivable	14,390	11,016
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	228	173
Allowance for Loan Losses, Total	228	173	385	316
Recorded Investment in Loans, Individually Evaluated for Impairment	0	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	9,109	6,912
Loans receivable	9,109	6,912
Mortgage loans, land
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	72	125
Allowance for Loan Losses, Collectively Evaluated for Impairment	708	793
Allowance for Loan Losses, Total	780	918	836	820
Recorded Investment in Loans, Individually Evaluated for Impairment	944	1,119
Recorded Investment in Loans, Collectively Evaluated for Impairment	20,178	22,791
Loans receivable	21,122	23,910
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	291	325
Allowance for Loan Losses, Collectively Evaluated for Impairment	667	658
Allowance for Loan Losses, Total	958	983	859	939
Recorded Investment in Loans, Individually Evaluated for Impairment	484	557
Recorded Investment in Loans, Collectively Evaluated for Impairment	38,491	37,863
Loans receivable	38,975	38,420
Consumer loans, other
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	0	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	129	121
Allowance for Loan Losses, Total	129	121	156	156
Recorded Investment in Loans, Individually Evaluated for Impairment		0
Recorded Investment in Loans, Collectively Evaluated for Impairment	4,050	3,823
Loans receivable	4,050	3,823
Commercial business loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Individually Evaluated for Impairment	55	0
Allowance for Loan Losses, Collectively Evaluated for Impairment	508	515
Allowance for Loan Losses, Total	563	515	$ 489	$ 482
Recorded Investment in Loans, Individually Evaluated for Impairment	181	0
Recorded Investment in Loans, Collectively Evaluated for Impairment	43,812	44,444
Loans receivable	$ 43,993	$ 44,444

Loans Receivable And Allowanc36

Loans Receivable And Allowance For Loan Losses: Past Due Status of Loans (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		$ 3,120	$ 2,413
Loans receivable, Non-Accrual	[1]	2,113	1,911
Loans receivable, Current		714,217	699,970
Loans receivable		717,337	702,383
Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		1,272	1,067
Loans receivable, Non-Accrual	[1]	947	874
Loans receivable, Current		115,704	117,080
Loans receivable		116,976	118,147
Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		61,366	58,607
Loans receivable		61,366	58,607
Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		904	320
Loans receivable, Non-Accrual	[1]	402	213
Loans receivable, Current		332,181	328,607
Loans receivable		333,085	328,927
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		71,548	63,538
Loans receivable		71,548	63,538
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		2,723	4,639
Loans receivable		2,723	4,639
Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		14,390	11,016
Loans receivable		14,390	11,016
Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		9,109	6,912
Loans receivable		9,109	6,912
Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		438	566
Loans receivable, Non-Accrual	[1]	395	566
Loans receivable, Current		20,684	23,344
Loans receivable		21,122	23,910
Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		289	314
Loans receivable, Non-Accrual	[1]	188	258
Loans receivable, Current		38,686	38,106
Loans receivable		38,975	38,420
Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		36	36
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		4,014	3,787
Loans receivable		4,050	3,823
Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		181	110
Loans receivable, Non-Accrual	[1]	181	0
Loans receivable, Current		43,812	44,334
Loans receivable		43,993	44,444
30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		971	395
30 to 59 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		325	193
30 to 59 Days Past Due | Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		502	0
30 to 59 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		43	0
30 to 59 Days Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		101	56
30 to 59 Days Past Due | Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	36
30 to 59 Days Past Due | Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	110
60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		36	107
60 to 89 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	107
60 to 89 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		36	0
60 to 89 Days Past Due | Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		$ 0	$ 0
[1]	Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual.

Loans Receivable And Allowanc37

Loans Receivable And Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 717,337	$ 702,383
Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	116,976	118,147
Mortgage loans, multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	61,366	58,607
Mortgage loans, commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	333,085	328,927
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	71,548	63,538
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,723	4,639
Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	14,390	11,016
Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	9,109	6,912
Mortgage loans, land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	21,122	23,910
Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	38,975	38,420
Consumer loans, other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,050	3,823
Commercial business loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	43,993	44,444
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	698,683	682,391
Pass | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	113,235	115,481
Pass | Mortgage loans, multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	61,366	56,857
Pass | Mortgage loans, commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	322,737	318,717
Pass | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	70,989	63,210
Pass | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,723	4,639
Pass | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	14,390	11,016
Pass | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	9,109	6,912
Pass | Mortgage loans, land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	17,929	20,528
Pass | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	38,463	37,828
Pass | Consumer loans, other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,014	3,787
Pass | Commercial business loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	43,728	43,416
Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	8,681	8,956
Watch | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	902	422
Watch | Mortgage loans, multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	6,028	6,059
Watch | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	559	328
Watch | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Watch | Mortgage loans, land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,014	1,022
Watch | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	149	152
Watch | Consumer loans, other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Watch | Commercial business loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	29	973
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	5,956	7,783
Special Mention | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	595	644
Special Mention | Mortgage loans, multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	1,750
Special Mention | Mortgage loans, commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	3,522	3,540
Special Mention | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Special Mention | Mortgage loans, land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,784	1,794
Special Mention | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Special Mention | Consumer loans, other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Special Mention | Commercial business loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	55	55
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,017	3,253
Substandard | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,244	1,600
Substandard | Mortgage loans, multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	798	611
Substandard | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Substandard | Mortgage loans, land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	395	566
Substandard | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	363	440
Substandard | Consumer loans, other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	36	36
Substandard | Commercial business loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 181	$ 0

Loans Receivable And Allowanc38

Loans Receivable And Allowance For Loan Losses: Impaired Financing Receivables (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017
Recorded Investment
With no related allowance recorded		$ 3,807	$ 3,830
With an allowance recorded		3,313	3,162
Total:		7,120	6,992
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded		4,049	4,089
With an allowance recorded		3,313	3,221
Total:		7,362	7,310
Related Allowance		435	476
Average Recorded Investment
With no related allowance recorded		3,819	5,963	[1]
With an allowance recorded		3,239	5,260	[1]
Total		7,058	11,223	[1]
Interest Income Recognized
With no related allowance recorded		45	271	[1]
With an allowance recorded		42	296	[1]
Total		87	567	[1]
Cash Basis Interest Income Recognized
With no related allowance recorded		35	218	[1]
With an allowance recorded		34	237	[1]
Total		69	455	[1]
Mortgage loans, one-to-four family
Recorded Investment
With no related allowance recorded		1,423	1,443
With an allowance recorded		44	0
Total:		1,467	1,443
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded		1,569	1,589
With an allowance recorded		44	0
Total:		1,613	1,589
Related Allowance		1	0
Average Recorded Investment
With no related allowance recorded		1,433	1,108	[1]
With an allowance recorded		22	721	[1]
Total		1,455	1,829	[1]
Interest Income Recognized
With no related allowance recorded		19	68	[1]
With an allowance recorded		0	50	[1]
Total		19	118	[1]
Cash Basis Interest Income Recognized
With no related allowance recorded		16	62	[1]
With an allowance recorded		0	38	[1]
Total		16	100	[1]
Mortgage loans, commercial
Recorded Investment
With no related allowance recorded		2,151	1,967
With an allowance recorded		1,893	1,906
Total:		4,044	3,873
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded		2,151	1,967
With an allowance recorded		1,893	1,906
Total:		4,044	3,873
Related Allowance		16	26
Average Recorded Investment
With no related allowance recorded		2,059	3,901	[1]
With an allowance recorded		1,900	3,326	[1]
Total		3,959	7,227	[1]
Interest Income Recognized
With no related allowance recorded		24	188	[1]
With an allowance recorded		27	182	[1]
Total		51	370	[1]
Cash Basis Interest Income Recognized
With no related allowance recorded		17	143	[1]
With an allowance recorded		21	144	[1]
Total		38	287	[1]
Mortgage loans, construction - custom and owner/builder
Recorded Investment
With no related allowance recorded			0
Total:			0
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded			0
Total:			0
Related Allowance			0
Average Recorded Investment
With no related allowance recorded	[1]		147
Total	[1]		147
Interest Income Recognized
With no related allowance recorded	[1]		7
Total	[1]		7
Cash Basis Interest Income Recognized
With no related allowance recorded	[1]		7
Total	[1]		7
Mortgage loans, land
Recorded Investment
With no related allowance recorded		45	297
With an allowance recorded		899	822
Total:		944	1,119
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded		141	410
With an allowance recorded		899	881
Total:		1,040	1,291
Related Allowance		72	125
Average Recorded Investment
With no related allowance recorded		171	512	[1]
With an allowance recorded		861	666	[1]
Total		1,032	1,178	[1]
Interest Income Recognized
With no related allowance recorded		0	8	[1]
With an allowance recorded		9	35	[1]
Total		9	43	[1]
Cash Basis Interest Income Recognized
With no related allowance recorded		0	6	[1]
With an allowance recorded		8	29	[1]
Total		8	35	[1]
Consumer loans, home equity and second mortgage
Recorded Investment
With no related allowance recorded		188	123
With an allowance recorded		296	434
Total:		484	557
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded		188	123
With an allowance recorded		296	434
Total:		484	557
Related Allowance		291	325
Average Recorded Investment
With no related allowance recorded		156	284	[1]
With an allowance recorded		365	530	[1]
Total		521	814	[1]
Interest Income Recognized
With no related allowance recorded		2	0	[1]
With an allowance recorded		6	29	[1]
Total		8	29	[1]
Cash Basis Interest Income Recognized
With no related allowance recorded		2	0	[1]
With an allowance recorded		5	26	[1]
Total		7	26	[1]
Consumer loans, other
Recorded Investment
With an allowance recorded			0
Total:			0
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With an allowance recorded			0
Total:			0
Related Allowance			0
Average Recorded Investment
With an allowance recorded	[1]		17
Total	[1]		17
Interest Income Recognized
With an allowance recorded	[1]		0
Total	[1]		0
Cash Basis Interest Income Recognized
With an allowance recorded	[1]		0
Total	[1]		0
Commercial business loans
Recorded Investment
With no related allowance recorded			0
With an allowance recorded		181
Total:		181	0
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded			0
With an allowance recorded		181
Total:		181	0
Related Allowance		55	0
Average Recorded Investment
With no related allowance recorded	[1]		11
With an allowance recorded		91
Total		91	11	[1]
Interest Income Recognized
With no related allowance recorded	[1]		0
With an allowance recorded		0
Total		0	0	[1]
Cash Basis Interest Income Recognized
With no related allowance recorded	[1]		0
With an allowance recorded		0
Total		$ 0	$ 0	[1]
[1]	For the year ended September 30, 2017.

Loans Receivable And Allowanc39

Loans Receivable And Allowance For Loan Losses: Schedule 1 of Troubled debt restructured loans (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	$ 3,481	$ 3,595
Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	3,282	3,342
Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	199	253
Mortgage loans, one-to-four family
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	564	569
Mortgage loans, one-to-four family | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	520	569
Mortgage loans, one-to-four family | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	44	0
Mortgage loans, commercial
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	2,214	2,219
Mortgage loans, commercial | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	2,214	2,219
Mortgage loans, commercial | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	0	0
Mortgage loans, land
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	703	807
Mortgage loans, land | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	548	554
Mortgage loans, land | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	$ 155	$ 253

Loans Receivable And Allowanc40

Loans Receivable And Allowance For Loan Losses - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Troubled debt restructured loan	$ 3,481,000	$ 3,595,000
Loans and leases receivable, impaired, commitment to lend	0	0
Allowance for loan losses allocated to TDR loans	33,000	10,000
Pre-modification TDR balance		$ 214,000
Post-modification TDR balance	$ 155,000

Net Income Per Common Share (De

Net Income Per Common Share (Details) - shares	Dec. 31, 2017	Dec. 31, 2016
Earnings Per Share [Abstract]
ESOP, number of suspense shares (in shares)	51,105	84,964

Net Income Per Common Share_ Sc

Net Income Per Common Share: Schedule of Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		Jan. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Earnings Per Share, Basic [Abstract]
Numerator – net income			$ 3,614	$ 3,147
Denominator – weighted average common shares outstanding (in shares)			7,312,531	6,862,749
Basic net income per common share (in dollars per share)			$ 0.49	$ 0.46
Earnings Per Share, Diluted [Abstract]
Effect of dilutive stock options (in shares)	[1]		195,638	139,493
Effect of dilutive stock warrant (in shares)	[2]		0	233,273
Weighted average common shares and common stock equivalents (in shares)			7,508,169	7,235,515
Diluted net income per common share (in dollars per share)			$ 0.48	$ 0.43
Shares issued for warrants exercised		370,899
Proceeds from warrants exercised		$ 2,500
Stock Options
Earnings Per Share, Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)			14,651
Warrant
Earnings Per Share, Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)			370,899
Number of Shares
Earnings Per Share, Diluted [Abstract]
Class of warrant, exercise price (in dollars per share)			$ 6.73
[1]	For the three months ended December 31, 2017, average options to purchase 14,651 shares of common stock were outstanding but not included in the computation of diluted net income per common share because their effect would have been anti-dilutive. For the three months ended December 31, 2016, all outstanding options were included in the computation of diluted net income per share.
[2]	Represented a warrant to purchase 370,899 shares of the Company's common stock at an exercise price of $6.73 per share (subject to anti-dilution adjustments) at any time through December 23, 2018 (the "Warrant"). The Warrant was granted on December 23, 2008 to the U.S. Treasury Department ("Treasury") as part of the Company's participation in the Treasury's Troubled Asset Relief Program ("TARP"). On June 12, 2013, the Treasury sold the Warrant to private investors. On January 31, 2017, the Warrant was exercised and 370,899 shares of the Company's common stock were issued in exchange for $2.50 million.

Accumulated Other Comprehensi43

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended
		Dec. 31, 2017		Dec. 31, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period		$ 111,000	[1]	$ 96,834
Balance at end of period		114,112		99,634
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	(124)		(175)
Net change	[2]	(12)		(14)
Balance at end of period	[2]	(136)		(189)
Accumulated Net Unrealized Investment Gain (Loss) | Available-for-sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	(19)		4
Net change	[2]	(7)		(27)
Balance at end of period	[2]	(26)		(23)
Accumulated Net Unrealized Investment Gain (Loss) | Held-to-maturity Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	[2]	(105)		(179)
Net change	[2]	(5)		13
Balance at end of period	[2]	$ (110)		$ (166)
[1]	Derived from audited consolidated financial statements.
[2]	All amounts are net of income taxes.

Stock Compensation Plans (Detai

Stock Compensation Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jan. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, outstanding, aggregate intrinsic value	$ 4,890	$ 3,860
Number of unvested stock options (shares)	203,250	221,950
Unvested stock options, aggregate grant date fair value	$ 499	$ 438
Unvested stock options, aggregate intrinsic value	$ 1,940
Stock options vested during period (shares)	29,500	28,500
Stock options vested during period, aggregate grant date fair value	$ 75	$ 67
Aggregate intrinsic value of options exercised during the period	124	$ 157
Unrecognized compensation expense, non-vested options	$ 446
Unrecognized compensation expense, non-vested options, amortization period (in years)	2 years 3 months
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	300,000
Award vesting percentage	20.00%
Award vesting period (years)	5 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term	10 years
Number of unvested shares	0	0
Equity Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized			352,366
Number of shares available for grant	116,516
MRDP | Stock Grant Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	0	0

Stock Compensation Plans_ Discl

Stock Compensation Plans: Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details) - $ / shares	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Shares:
Options outstanding, beginning of period (shares)	380,120	373,130
Exercised (shares)	(6,250)	(12,700)
Forfeited (shares)	(4,300)	0
Options outstanding, end of period (shares)	369,570	360,430
Weighted Average Exercise Price (in dollars per share):
Options outstanding, beginning of period (dollars per share)	$ 13.23	$ 9.82
Exercised (dollars per share)	9.65	6.31
Forfeited (dollars per share)	11.66	0
Options outstanding, end of period (dollars per share)	$ 13.31	$ 9.94

Stock Compensation Plans_ Stock

Stock Compensation Plans: Stock Options by Exercise Price (Details) - Stock Options shares in Thousands	3 Months Ended
	Dec. 31, 2017$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	369,570
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 13.31
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years 2 months 9 days
Options Exercisable, Number (shares) | shares	166,320
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 8.83
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	5 years 11 months 24 days
$4.01 - $4.55
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	10,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 4.28
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	2 years 10 months 15 days
Options Exercisable, Number (shares) | shares	10,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 4.28
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	2 years 10 months 15 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 4.01
Weighted Average Exercise Price, maximum (dollars per share)	$ 4.55
$5.86 - $6.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	39,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 5.94
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 15 days
Options Exercisable, Number (shares) | shares	39,000
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 5.94
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	4 years 9 months 15 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 5.86
Weighted Average Exercise Price, maximum (dollars per share)	$ 6
$ 9
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	78,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 9
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 9 months 30 days
Options Exercisable, Number (shares) | shares	59,800
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 9
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	5 years 9 months 30 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 9
$10.26 - $10.71
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	131,520
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 10.57
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years 3 months 15 days
Options Exercisable, Number (shares) | shares	48,070
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 10.56
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	7 years 2 months 21 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 10.26
Weighted Average Exercise Price, maximum (dollars per share)	$ 10.71
$ 15.67
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	53,050
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 15.67
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	8 years 9 months
Options Exercisable, Number (shares) | shares	9,450
Options Exercisable, Weighted Average Exercise Price (dollars per share)	$ 15.67
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	8 years 10 months 6 days
Weighted Average Exercise Price, minimum (dollars per share)	$ 15.67
$ 29.69
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Number (shares) | shares	58,000
Options Outstanding, Weighed Average Exercise Price (dollars per share)	$ 29.69
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	9 years 9 months
Options Exercisable, Number (shares) | shares	0
Weighted Average Exercise Price, minimum (dollars per share)	$ 29.69

Fair Value Measurements_ Balanc

Fair Value Measurements: Balances of assets and liabilities measured at estimated fair value on a recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	$ 1,221	$ 1,241
MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	275	289
Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	946	952
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	946	952
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	275	289
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	0	0
Recurring | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	275	289
Recurring | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	946	952
Recurring | Fair Value, Inputs, Level 1 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	0	0
Recurring | Fair Value, Inputs, Level 1 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	946	952
Recurring | Fair Value, Inputs, Level 2 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	275	289
Recurring | Fair Value, Inputs, Level 2 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	0	0
Recurring | Fair Value, Inputs, Level 3 | MBS: U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	0	0
Recurring | Fair Value, Inputs, Level 3 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, estimated fair value	$ 0	$ 0

Fair Value Measurements_ Bala48

Fair Value Measurements: Balances of assets measured at estimated fair value on a non-recurring basis, and total losses resulting from estimated fair value adjustments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	$ 0	$ 0
Fair Value, Inputs, Level 1 | Mortgage loans, one-to-four family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0
Fair Value, Inputs, Level 1 | Mortgage loans, commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Mortgage loans, land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Consumer loans, home equity and second mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Commercial business loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0
Fair Value, Inputs, Level 1 | Total impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | Private label residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 1 | OREO and other repossessed items
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	112	125
Fair Value, Inputs, Level 2 | Mortgage loans, one-to-four family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0
Fair Value, Inputs, Level 2 | Mortgage loans, commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Mortgage loans, land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Consumer loans, home equity and second mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Commercial business loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0
Fair Value, Inputs, Level 2 | Total impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 2 | Private label residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	112	125
Fair Value, Inputs, Level 2 | OREO and other repossessed items
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	5,765	5,987
Fair Value, Inputs, Level 3 | Mortgage loans, one-to-four family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	43
Fair Value, Inputs, Level 3 | Mortgage loans, commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	1,877	1,880
Fair Value, Inputs, Level 3 | Mortgage loans, land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	827	697
Fair Value, Inputs, Level 3 | Consumer loans, home equity and second mortgage
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	5	109
Fair Value, Inputs, Level 3 | Commercial business loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	126
Fair Value, Inputs, Level 3 | Total impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	2,878	2,686
Fair Value, Inputs, Level 3 | Private label residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	0	0
Fair Value, Inputs, Level 3 | OREO and other repossessed items
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, estimated fair value, nonrecurring	$ 2,887	$ 3,301

Fair Value Measurements_ Fair V

Fair Value Measurements: Fair Value Measurements, Nonrecurring, Valuation Techniques (Details) - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, estimated fair value, nonrecurring	$ 5,765	$ 5,987
Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, estimated fair value, nonrecurring	2,878	2,686
Nonrecurring | Impaired loans | Market Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, estimated fair value, nonrecurring	2,878	2,686
Nonrecurring | OREO and other repossessed assets | Market Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, estimated fair value, nonrecurring	$ 2,887	$ 3,301

Fair Value Measurements_ Schedu

Fair Value Measurements: Schedule of estimated fair values of financial instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other investments, at cost	$ 3,000	$ 3,000	[1]
Recorded Amount
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	166,207	148,188
CDs held for investment	53,528	43,034
Investment securities	8,298	8,380
FHLB stock	1,107	1,107
Other investments, at cost	3,000	3,000
Loans receivable, net	3,407	3,599
Loans Receivable, Fair Value Disclosure	705,268	690,364
Accrued interest receivable	2,743	2,520
Non-interest-bearing demand	210,108	205,952
Interest-bearing	665,966	631,946
Total deposits	876,074	837,898
Accrued interest payable	178	161
Fair Value
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	166,207	148,188
CDs held for investment	53,528	43,034
Investment securities	8,830	8,985
FHLB stock	1,107	1,107
Other investments, at cost	3,000	3,000
Loans receivable, net	3,501	3,619
Loans Receivable, Fair Value Disclosure	697,940	688,332
Accrued interest receivable	2,743	2,520
Non-interest-bearing demand	210,108	205,952
Interest-bearing	665,783	632,629
Total deposits	875,891	838,581
Accrued interest payable	178	161
Fair Value | Fair Value, Inputs, Level 1
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	166,207	148,188
CDs held for investment	53,528	43,034
Investment securities	3,910	3,954
FHLB stock	1,107	1,107
Other investments, at cost	3,000	3,000
Loans receivable, net	3,501	3,619
Loans Receivable, Fair Value Disclosure	0	0
Accrued interest receivable	2,743	2,520
Non-interest-bearing demand	210,108	205,952
Interest-bearing	528,543	492,305
Total deposits	738,651	698,257
Accrued interest payable	178	161
Fair Value | Fair Value, Inputs, Level 2
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
CDs held for investment	0	0
Investment securities	4,920	5,031
FHLB stock	0	0
Other investments, at cost	0	0
Loans receivable, net	0	0
Loans Receivable, Fair Value Disclosure	0	0
Accrued interest receivable	0	0
Non-interest-bearing demand	0	0
Interest-bearing	0	0
Total deposits	0	0
Accrued interest payable	0	0
Fair Value | Fair Value, Inputs, Level 3
Fair value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
CDs held for investment	0	0
Investment securities	0	0
FHLB stock	0	0
Other investments, at cost	0	0
Loans receivable, net	0	0
Loans Receivable, Fair Value Disclosure	697,940	688,332
Accrued interest receivable	0	0
Non-interest-bearing demand	0	0
Interest-bearing	137,240	140,324
Total deposits	137,240	140,324
Accrued interest payable	$ 0	$ 0
[1]	Derived from audited consolidated financial statements.

Recent Accounting Pronounceme51

Recent Accounting Pronouncements - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2018
Investments, Owned, Federal Income Tax Note [Line Items]
Tax Cuts and Jobs Act of 2017, change in tax rate, deferred tax asset, income tax expense (benefit)	$ 548,000
Tax Cuts and Jobs Act of 2017, change in tax rate, income tax expense (benefit)	$ 551,000
Forecast
Investments, Owned, Federal Income Tax Note [Line Items]
Statutory tax rate		24.50%