10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

____________________________________________

FORM 10-Q

____________________________________________

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period ended March 31, 2017

Or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For transition period from              to             

Commission File Number 001-35871

Westbury Bancorp, Inc.

(Exact Name of Registrant as Specified in Charter)

____________________________________________

Maryland	46-1834307
(State or Other Jurisdiction of Incorporation)	(I.R.S. Employer Identification Number)
200 South Main Street, West Bend, Wisconsin	53095
(Address of Principal Executive Officers)	(Zip Code)

(262) 334-5563

Registrant’s telephone number, including area code

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

____________________________________________

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  x  No  o.

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes  x  No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	¨	Smaller reporting company	x
		Emerging growth company	x

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes  o  No  x

Indicate the number of shares outstanding of each of the Issuer’s classes of common stock as of the latest practicable date.

There were 4,037,626 shares of Common Stock, par value $.01 per share, outstanding as of April 28, 2017.

WESTBURY BANCORP, INC.

Form 10-Q Quarterly Report 

Table of Contents 

PART I  FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS	2
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	36
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	50
ITEM 4. CONTROLS AND PROCEDURES	50
PART II  OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS	51
ITEM 1A. RISK FACTORS	51
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	51
ITEM 3. DEFAULTS UPON SENIOR SECURITIES	51
ITEM 4. MINE SAFETY DISCLOSURES	51
ITEM 5. OTHER INFORMATION	52
ITEM 6. EXHIBITS	52
INDEX TO EXHIBITS	54

PART I

ITEM 1.FINANCIAL STATEMENTS

Westbury Bancorp, Inc. and Subsidiary

Consolidated Balance Sheets

March 31, 2017 and September 30, 2016

(In Thousands, except share data)

	March 31, 2017			September 30, 2016
	(Unaudited)
Assets
Cash and due from banks	$	25,705		$	19,125
Interest-earning deposits	18,381			10,488
Cash and cash equivalents	44,086			29,613
Securities available-for-sale	115,208			93,772
Securities held to maturity, at amortized cost ($2,324 and $2,392 fair value at March 31, 2017 and September 30, 2016, respectively)	2,293			2,293
Loans held for sale, at lower of cost or fair value	277			1,881
Loans, net of allowance for loan losses of $5,560 and $5,244 at March 31, 2017 and September 30, 2016, respectively	551,611			533,759
Federal Home Loan Bank stock, at cost	1,301			1,330
Foreclosed real estate	—			99
Office properties and equipment, net	15,573			15,410
Cash surrender value of bank-owned life insurance	14,455			14,233
Mortgage servicing rights	834			800
Deferred tax asset	5,564			5,425
Other assets	4,339			4,010
Total assets	$	755,541		$	702,625
Liabilities and Stockholders’ Equity
Liabilities
Deposits	$	645,313		$	591,977
Long-term advances from Federal Home Loan Bank	20,000			20,000
Advance payments by borrowers for property taxes and insurance	1,818			5,455
Other liabilities	9,330			5,564
Total liabilities	676,461			622,996
Stockholders’ Equity
Preferred stock $0.01 par value, 50,000,000 shares authorized; none issued or outstanding	—			—
Common stock $0.01 par value, 100,000,000 shares authorized; 5,354,315 and 5,347,641 shares issued at March 31, 2017 and September 30, 2016, respectively	54			54
Additional paid-in capital	52,182			51,463
Retained earnings	53,678			52,185
Unearned Employee Stock Ownership Plan (ESOP) shares	(2,983		)	(3,188		)
Accumulated other comprehensive gain (loss)	(996		)	561
Less common stock repurchased, 1,314,789 and 1,249,123 shares at cost, at March 31, 2017 and September 30, 2016, respectively	(22,855		)	(21,446		)
Total stockholders’ equity	79,080			79,629
Total liabilities and stockholders’ equity	$	755,541		$	702,625

See Notes to Unaudited Consolidated Financial Statements.

2

Westbury Bancorp, Inc and Subsidiary
Consolidated Statements of Operations
Three and Six Months Ended March 31, 2017 and 2016 (Unaudited)
(In Thousands, except per share data)
	Three Months Ended   March 31,				Six Months Ended   March 31,
	2017		2016		2017		2016
Interest and dividend income:
Loans	$	5,465	$	5,166	$	10,861	$	10,283
Investments - nontaxable	143		23		271		52
Investments - taxable	431		479		795		902
Interest bearing deposits	54		37		90		63
Total interest and dividend income	6,093		5,705		12,017		11,300
Interest expense:
Deposits	735		579		1,402		1,137
Short-term advances from the Federal Home Loan Bank	9		15		9		23
Long-term advances from the Federal Home Loan Bank	51		47		101		71
Total interest expense	795		641		1,512		1,231
Net interest income before provision for loan losses	5,298		5,064		10,505		10,069
Provision for loan losses	100		125		300		275
Net interest income after provision for loan losses	5,198		4,939		10,205		9,794
Noninterest income:
Service fees on deposit accounts	932		947		1,921		2,025
Gain on sales of loans, net	67		135		282		262
Servicing fee income, net of amortization and impairment	72		17		197		54
Insurance and securities sales commissions	59		59		102		132
Gain on sales of securities	—		9		4		11
Gain on sales of other assets	—		1		—		1
Increase in cash surrender value of bank-owned life insurance	108		110		222		220
Rental income from real estate operations	110		113		213		226
Other income	94		109		169		240
Total noninterest income	1,442		1,500		3,110		3,171
Noninterest expenses:
Compensation and employee benefits	2,806		2,542		5,748		4,906
Occupancy, furniture and equipment	623		443		1,159		862
Data processing	856		772		1,662		1,519
Accounting, legal and other professional fees	325		260		618		528
FDIC insurance premiums	101		103		203		207
Other expenses	726		881		1,566		1,830
Total noninterest expenses	5,437		5,001		10,956		9,852
Income before income tax expense	1,203		1,438		2,359		3,113
Income tax expense	457		565		866		1,201
Net income	$	746	$	873	$	1,493	$	1,912
Earnings per share:
Basic	$	0.21	$	0.23	$	0.41	$	0.51
Diluted	$	0.20	$	0.23	$	0.40	$	0.50

See Notes to Unaudited Consolidated Financial Statements.

3

Westbury Bancorp, Inc. and Subsidiary

Consolidated Statements of Comprehensive Income (Loss)

Three and Six Months Ended March 31, 2017 and 2016

(Unaudited)

(In Thousands)

	Three Months Ended   March 31,						Six Months Ended   March 31,
	2017			2016			2017			2016
Net income	$	746		$	873		$	1,493		$	1,912
Other comprehensive income (loss), before tax:
Unrealized gain (loss) on available-for-sale securities	484			1,574			(2,558		)	605
Reclassification adjustment for realized gains included in net income	—			(9		)	(4		)	(11		)
Other comprehensive income (loss), before tax	484			1,565			(2,562		)	594
Income tax (expense) benefit related to items of other comprehensive income (loss)	(190		)	(613		)	1,005			(232		)
Other comprehensive income (loss), net of tax	294			952			(1,557		)	362
Comprehensive income (loss)	$	1,040		$	1,825		$	(64	)	$	2,274

See Notes to Unaudited Consolidated Financial Statements.

4

Westbury Bancorp, Inc. and Subsidiary

Consolidated Statements of Changes in Stockholders’ Equity

Six Months Ended March 31, 2017 and 2016

(Unaudited)

(In Thousands, except share data)

	Preferred Stock		Common Stock		Additional Paid In Capital		Retained Earnings		Unearned ESOP Shares			Accumulated Other Comprehensive Income (Loss)			Common Stock Repurchased			Total
Balance, September 30, 2016	$	—	$	54	$	51,463	$	52,185	$	(3,188	)	$	561		$	(21,446	)	$	79,629
Net income	—		—		—		1,493		—			—			—			1,493
Other comprehensive loss, net of tax	—		—		—		—		—			(1,557		)	—			(1,557		)
Repurchase of 65,666 common stock shares	—		—		—		—		—			—			(1,409		)	(1,409		)
Exercise of 5,896 stock options	—		—		92		—		—			—			—			92
Stock based compensation expense	—		—		411		—		—			—			—			411
Allocation, or commitment to be allocated, of 20,570 shares by ESOP	—		—		216		—		205			—			—			421
Balance, March 31, 2017	$	—	$	54	$	52,182	$	53,678	$	(2,983	)	$	(996	)	$	(22,855	)	$	79,080
Balance, September 30, 2015	$	—	$	53	$	50,145	$	48,714	$	(3,548	)	$	352		$	(16,904	)	$	78,812
Net income	—		—		—		1,912		—			—			—			1,912
Other comprehensive income, net of tax	—		—		—		—		—			362			—			362
Repurchase of 170,632 common stock shares	—		—		—		—		—			—			(3,242		)	(3,242		)
Exercise of 4,298 stock options	—		—		64		—		—			—			—			64
Stock based compensation expense	—		—		417		—		—			—			—			417
Allocation,or commitment to be allocated, of 15,427 shares by ESOP	—		—		129		—		154			—			—			283
Balance, March 31, 2016	$	—	$	53	$	50,755	$	50,626	$	(3,394	)	$	714		$	(20,146	)	$	78,608

See Notes to Unaudited Consolidated Financial Statements.

5

Westbury Bancorp, Inc. and Subsidiary
Consolidated Statements of Cash Flows
Six Months Ended March 31, 2017 and 2016 (Unaudited)
(In Thousands)
	Six Months Ended   March 31,
	2017			2016
Cash Flows From Operating Activities
Net income	$	1,493		$	1,912
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses	300			275
Depreciation and amortization	450			383
Depreciation on real estate held for investment	—			44
Net amortization of securities premiums and discounts	409			205
Amortization and impairment of mortgage servicing rights	(34		)	146
Gain on sales of available-for-sale securities	(4		)	(11		)
Gain on sales of other assets	—			(1		)
Write-down of real estate held-for-sale	—			47
(Gain) loss on sale of foreclosed real estate	3			(21		)
Write-down of foreclosed real estate	9			26
Loans originated for sale	(15,600		)	(17,004		)
Proceeds from sale of loans	17,486			17,089
Gain on sale of loans, net	(282		)	(262		)
ESOP compensation expense	421			283
Stock based compensation expense	411			417
Deferred income taxes	866			1,202
Increase in cash surrender value of life insurance	(222		)	(220		)
Net change in:
Other assets	(329		)	(650		)
Other liabilities and advance payments by borrowers for property taxes and insurance	129			(4,815		)
Net cash provided by (used in) operating activities	5,506			(955		)
Cash Flows From Investing Activities
Purchases of securities available-for-sale	(30,378		)	(16,272		)
Proceeds from sales of securities available-for-sale	829			8,740
Proceeds from maturities, prepayments, and calls of securities available-for-sale	5,146			6,282
Purchases of real estate held for investment	—			(18		)
Proceeds from sale of real estate held for investment	—			185
Redemption of FHLB stock	29			—
Net increase in loans	(18,152		)	(15,650		)
Purchase of bank-owned life insurance	—			(637		)
Purchases of office properties and equipment	(613		)	(141		)
Proceeds from sales of real estate held-for-sale	—			27
Proceeds from sales of foreclosed real estate	87			278
Net cash used in investing activities	(43,052		)	(17,206		)
Cash Flows From Financing Activities
Net increase in deposits	53,336			19,197
Proceeds from long-term Federal Home Loan Bank advances	—			20,000
Net proceeds of short-term Federal Home Loan Bank advances	—			(18,000		)
Proceeds from exercise of stock options	92			64
Repurchase of common stock	(1,409		)	(3,242		)
Net cash provided by financing activities	52,019			18,019
Net increase (decrease) in cash and cash equivalents	14,473			(142		)
Cash and cash equivalents at beginning of period	29,613			16,488
Cash and cash equivalents at end of period	$	44,086		$	16,346
Supplemental Disclosures of Cash Flow Information
Interest paid (including amounts credited to deposits)	$	1,511		$	1,231

See Notes to Unaudited Consolidated Financial Statements.

6

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Note 1.Basis of Presentation

 The accompanying unaudited consolidated financial statements of Westbury Bancorp, Inc. and its wholly-owned subsidiary, Westbury Bank, (the "Bank", and collectively, the “Company”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 8-03 of Regulation S-X.  Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Estimates used in the preparation of the financial statements are based on various factors including the current interest rate environment and the general strength of the local economy.  Changes in the overall interest rate environment can significantly affect the Company’s net interest income and the value of its recorded assets and liabilities.  Actual results could differ from those estimates used in the preparation of the financial statements.  Certain prior period amounts have been reclassified to conform to current period presentation.  These reclassifications did not result in any changes to previously reported net income or stockholders’ equity.

In the opinion of management, the accompanying unaudited financial statements contain all adjustments (consisting only of normal recurring accruals) necessary to present fairly the Company’s financial condition as of March 31, 2017 and September 30, 2016 and the results of operations and cash flows for the interim periods ended March 31, 2017 and 2016.  All interim amounts are unaudited, and the results of operations for the interim periods herein are not necessarily indicative of the results of operations to be expected for the year.  These financial statements should be read in conjunction with the Company’s audited financial statements and notes thereto for the year ended September 30, 2016 filed with the U.S. Securities and Exchange Commission as part of Westbury Bancorp, Inc.’s Annual Report on Form 10-K for the year ended September 30, 2016.

The Jumpstart Our Business Startups Act (the "JOBS Act"), which was signed into law on April 5, 2012, made numerous changes to the federal securities laws to facilitate access to capital markets. Under the JOBS Act, a company with total annual gross revenues of less than $1.0 billion during its most recently completed fiscal year qualifies as an “emerging growth company.” The Company qualifies as an “emerging growth company” and believes that it will continue to qualify as an “emerging growth company” until five years from the completion of the Company's initial public stock offering in April 2013.

As an “emerging growth company,” the Company has elected to use the extended transition period to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. Accordingly, the financial statements may not be comparable to the financial statements of companies that comply with such new or revised accounting standards.

Note 2.Recent Accounting Developments

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 is intended to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2018 and interim periods within annual periods beginning after December 15, 2019. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10) - Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01 is intended to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information. ASU 2016-01 is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods beginning after December 15, 2019. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key

7

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

information about leasing arrangements. ASU 2016-02 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2018. The Company is evaluating the potential impact of ASU 2016-02 on the consolidated financial statements and related disclosures.

In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718). ASU 2016-09 is intended to simplify the accounting for share-based payment transactions, including income tax consequences, classification of awards as either assets or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2017 and interim periods within annual periods beginning after December 15, 2018. Early adoption is permitted. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). ASU 2016-13 is intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity. ASU 2016-13 replaces the "incurred loss impairment methodology" with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU 2016-13 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019. The Company is evaluating the potential impact of ASU 2016-13 on the consolidated financial statements and related disclosures.

In March 2017, the FASB issued ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20). ASU 2017-08 is intended to amend the amortization period for certain purchased callable debt securities held at a premium. Under ASU 2017-08, the FASB is shortening the amortization period for the premium to the earliest call date. Under current GAAP, entities generally amortize the premium as an adjustment of yield over the contractual life of the instrument. ASU 2017-08 is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

Note 3.Earnings Per Share

Earnings per common share is computed using the two-class method. Basic earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding, adjusted for weighted average unallocated ESOP shares, during the applicable period, excluding outstanding participating securities. Participating securities include non-vested restricted stock awards to the extent holders of these securities are entitled to receive non-forfeitable dividends or dividend equivalents at the same rate as holders of the Company's common stock. Diluted earnings per share is computed using the weighted-average number of shares determined for the basic earnings per common share computation plus the dilutive effect of stock compensation using the treasury stock method.

8

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The following table presents a reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share (in thousands, except share and per share data).

	Three Months Ended March 31,						Six Months Ended March 31,
	2017			2016			2017			2016
Net income	$	746		$	873		$	1,493		$	1,912
Basic potential common shares:
Weighted average shares outstanding	3,936,596			4,073,133			3,955,400			4,118,040
Weighted average unallocated ESOP shares	(305,130		)	(346,266		)	(310,329		)	(349,713		)
Basic weighted average shares outstanding	3,631,466			3,726,867			3,645,071			3,768,327
Dilutive effect of equity awards	99,009			53,290			90,125			47,662
Diluted weighted average shares outstanding	3,730,475			3,780,157			3,735,196			3,815,989
Basic income per share	$	0.21		$	0.23		$	0.41		$	0.51
Diluted income per share	$	0.20		$	0.23		$	0.40		$	0.50

9

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Note 4.Investment Securities

The amortized cost and fair value of investment securities are summarized as follows:

	March 31, 2017
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. Government and agency securities	$	25	$	—	$	—		$	25
U.S. Government agency residential mortgage-backed securities	51,780		132		(809		)	51,103
U.S. Government agency collateralized mortgage obligations	5,708		11		(113		)	5,606
U.S. Government agency commercial mortgage-backed securities	15,452		20		(53		)	15,419
Municipal securities-tax exempt	31,147		30		(837		)	30,340
Municipal securities-taxable	12,735		43		(63		)	12,715
Total Available for Sale	116,847		236		(1,875		)	115,208
Held to Maturity
Municipal securities-tax exempt	2,293		32		(1		)	2,324
Total Investment Securities	$	119,140	$	268	$	(1,876	)	$	117,532
	September 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. Government and agency securities	$	24	$	1	$	—		$	25
U.S. Government agency residential mortgage-backed securities	40,289		504		(43		)	40,750
U.S. Government agency collateralized mortgage obligations	2,674		24		(18		)	2,680
U.S. Government agency commercial mortgage-backed securities	11,376		150		—			11,526
Municipal securities-tax exempt	25,730		51		(99		)	25,682
Municipal securities-taxable	12,756		358		(5		)	13,109
Total Available for Sale	92,849		1,088		(165		)	93,772
Held to Maturity
Municipal securities-tax exempt	2,293		99		—			2,392
Total Investment Securities	$	95,142	$	1,187	$	(165	)	$	96,164

10

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The amortized cost and fair value of investment securities, by contractual maturity, at March 31, 2017 are shown in the following table.  Actual maturities differ from contractual maturities for mortgage-backed securities and collateralized mortgage obligations because the mortgages underlying the securities may be called or repaid without penalty.  Therefore, these securities are not presented in the maturity categories in the table below.

	March 31, 2017
	Amortized Cost		Fair Value
Available for sale:
Due in one year or less	$	920	$	922
Due after one year through five years	13,677		13,654
Due after five years through ten years	23,609		22,952
Due after ten years	5,701		5,552
U.S. Government agency residential mortgage-backed securities	51,780		51,103
U.S. Government agency collateralized mortgage obligations	5,708		5,606
U.S. Government agency commercial mortgage-backed securities	15,452		15,419
	116,847		115,208
Held to maturity:
Due in one year or less	168		168
Due after one year through five years	703		705
Due after five years through ten years	982		999
Due after ten years	440		452
	2,293		2,324
Total	$	119,140	$	117,532

Proceeds from sales of securities available for sale during the three months ended March 31, 2017 and 2016, were zero and $3,521, respectively. Gross realized gains, during the three months ended March 31, 2017 and 2016, on these sales amounted to zero and $11, respectively. Gross realized losses on these sales were zero and $2, during the three months ended March 31, 2017 and 2016, respectively.

Proceeds from sales of securities available for sale during the six months ended March 31, 2017 and 2016, were $829 and $8,740, respectively. Gross realized gains, during the six months ended March 31, 2017 and 2016, on these sales amounted to $4 and $23, respectively. Gross realized losses on these sales were zero and $12, during the six months ended March 31, 2017 and 2016, respectively.

Securities with carrying values of $35,741 and $24,364 at March 31, 2017 and September 30, 2016, respectively, were pledged for purposes required or permitted by law.

11

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Information pertaining to securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized as follows:

	March 31, 2017
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government and agency securities	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agency residential mortgage-backed securities	36,078		(762		)	2,697		(47		)	38,775		(809		)
U.S. Government agency collateralized mortgage obligations	2,497		(79		)	512		(34		)	3,009		(113		)
U.S Government agency commercial mortgage-backed securities	11,603		(53		)	—		—			11,603		(53		)
Municipal securities-tax exempt	24,748		(837		)	—		—			24,748		(837		)
Municipal securities-taxable	6,091		(63		)	—		—			6,091		(63		)
Total Available for Sale	$	81,017	$	(1,794	)	$	3,209	$	(81	)	$	84,226	$	(1,875	)
Held to Maturity
Municipal securities-tax exempt	345		(1		)	—		—			345		(1		)
Total Investment Securities	$	81,362	$	(1,795	)	$	3,209	$	(81	)	$	84,571	$	(1,876	)

	September 30, 2016
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government and agency securities	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agency residential mortgage-backed securities	2,726		(5		)	3,020		(38		)	5,746		(43		)
U.S. Government agency collateralized mortgage obligations	—		—			576		(18		)	576		(18		)
U.S. Government agency commercial mortgage-backed securities	—		—			—		—			—		—
Municipal securities-tax exempt	18,314		(99		)	—		—			18,314		(99		)
Municipal securities-taxable	550		(5		)	—		—			550		(5		)
Total Available for Sale	$	21,590	$	(109	)	$	3,596	$	(56	)	$	25,186	$	(165	)
Held to Maturity
Municipal securities-tax exempt	—		—			—		—			—		—
Total Investment Securities	$	21,590	$	(109	)	$	3,596	$	(56	)	$	25,186	$	(165	)

At March 31, 2017, the investment portfolio included 5 securities available-for-sale, which had been in an unrealized loss position for greater than twelve months, and 135 securities available-for-sale and 2 securities held-to-maturity, which had been in an unrealized loss position for less than twelve months. At September 30, 2016, the investment portfolio included 5 securities available-for-sale, which had been in an unrealized loss position for greater than twelve months, and 58 securities available-for-sale, which had been in an unrealized loss position for less than twelve months.

These securities are considered to be acceptable credit risks. Based upon an evaluation of the available evidence, including recent changes in market rates, credit rating information and information obtained from regulatory filings, management believes the decline in fair value for these securities is temporary. In addition, the Company does not intend to sell these investment securities prior to a period of time sufficient to allow for anticipated recovery. The Company does not have any current requirement to sell its investment in any issuer prior to any anticipated recovery in fair value.

12

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Note 5.Loans

A summary of the balances of loans as of the dates indicated follows:

	March 31, 2017		September 30, 2016
Real estate:
Single family	$	160,989	$	158,541
Multifamily	117,384		123,623
Commercial real estate non-owner occupied	127,238		117,971
Commercial real estate owner occupied	73,534		63,108
Construction and land development	17,197		16,230
Total real estate	496,342		479,473
Commercial business	43,649		40,836
Consumer:
Home equity lines of credit	13,836		14,969
Education	3,108		3,401
Other	377		462
Total consumer	17,321		18,832
Total loans	557,312		539,141
Less:
Net deferred loan fees	141		138
Allowance for loan losses	5,560		5,244
Net loans	$	551,611	$	533,759

The following tables present the contractual aging of the Company's recorded investment in past due loans by class of loans as of March 31, 2017 and September 30, 2016:

March 31, 2017	Current		30-59 Days Past Due		60-89 Days Past Due		Loans Past Due 90 Days or More		Total
Single family	$	159,825	$	799	$	—	$	365	$	160,989
Multifamily	117,384		—		—		—		117,384
Commercial real estate non-owner occupied	127,238		—		—		—		127,238
Commercial real estate owner occupied	73,534		—		—		—		73,534
Construction and land development	17,197		—		—		—		17,197
Commercial business	43,649		—		—		—		43,649
Consumer and other:
Home equity lines of credit	13,809		—		—		27		13,836
Education	2,961		48		39		60		3,108
Other	377		—		—		—		377
	$	555,974	$	847	$	39	$	452	$	557,312

13

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

September 30, 2016	Current		30-59 Days Past Due		60-89 Days Past Due		Loans Past Due 90 Days or More		Total
Single family	$	157,803	$	239	$	426	$	73	$	158,541
Multifamily	123,623		—		—		—		123,623
Commercial real estate non-owner occupied	117,971		—		—		—		117,971
Commercial real estate owner occupied	63,108		—		—		—		63,108
Construction and land development	16,230		—		—		—		16,230
Commercial business	40,836		—		—		—		40,836
Consumer and other:
Home equity lines of credit	14,942		—		—		27		14,969
Education	3,202		11		39		149		3,401
Other	462		—		—		—		462
	$	538,177	$	250	$	465	$	249	$	539,141

There were no loans past due ninety days or more and still accruing interest as of March 31, 2017 and September 30, 2016.

The following table presents the recorded investment in nonaccrual loans by class of loans as of March 31, 2017 and September 30, 2016:

	March 31, 2017		September 30, 2016
Single family	$	381	$	338
Multifamily	—		—
Commercial real estate non-owner occupied	—		—
Commercial real estate owner occupied	—		—
Construction and land development	—		—
Commercial business	—		—
Consumer and other:
Home equity lines of credit	35		36
Education	99		188
Other	—		—
	$	515	$	562

As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management categorizes loans into risk categories based on relevant information about the ability of the borrowers to service their debt and comply with various terms of their underlying loan agreements.  The Company considers current financial information, historical payment experience, credit documentation, public information and current economic trends when catgorizing its loans into risk categories.  Generally, all sizable credits receive a financial review no less than annually to monitor and adjust, if necessary, the credit’s risk profile.  Credits classified as special mention, substandard or doubtful generally receive a review quarterly.

The Company categorizes loans into the following risk categories based on relevant information about the ability of borrowers to service their debt:

Pass — A pass asset is well protected by the current worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less costs to acquire and sell in a timely manner, of any underlying collateral.

Watch — A watch asset has potential weaknesses that deserve management’s close attention.  If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at

14

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

some future date. Watch assets are not adversely classified and do not expose the Company to sufficient risk to warrant further classification.

Special Mention — A special mention asset has characteristics of deterioration in quality exhibited by any number of well-defined weaknesses requiring significant corrective action.  The repayment ability of the borrower has not been validated, or has become marginal or weak, and the loan may have exhibited some overdue payments or payment extensions and/or renewals.

Substandard — A substandard asset is an asset with a well-defined weakness that jeopardizes repayment, in whole or in part, of the debt.  These credits are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged.  These assets are characterized by the distinct possibility that the Company will or has sustained some loss of principal and/or interest if the deficiencies are not corrected.

Doubtful — A doubtful asset is an asset that has all the weaknesses inherent in the substandard classification with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable.  These credits have a high probability for loss, yet because certain important and reasonably specific pending factors may work toward the strengthening of the asset, its classification of loss is deferred until its more exact status can be determined.

Homogeneous loan types are assessed for credit quality based on the contractual aging status of the loan and payment activity.  In certain cases, based upon payment performance, the loan being related with another commercial type loan or for other reasons, a loan may be categorized into one of the risk categories noted above.  Such assessment is completed at the end of each reporting period.

The following tables present the risk category of loans evaluated by internal asset classification based on the most recent analysis performed and the contractual aging of our loan portfolio as of March 31, 2017 and September 30, 2016:

March 31, 2017	Pass		Watch		Special Mention		Substandard		Doubtful		Total
Single family	$	158,778	$	605	$	—	$	1,606	$	—	$	160,989
Multifamily	115,685		1,699		—		—		—		117,384
Commercial real estate non-owner occupied	126,182		1,056		—		—		—		127,238
Commercial real estate owner occupied	70,499		2,207		—		828		—		73,534
Construction and land development	17,196		—		—		1		—		17,197
Commercial business	34,359		5,393		—		3,897		—		43,649
Consumer and other:
Home equity lines of credit	13,743		—		—		93		—		13,836
Education	3,108		—		—		—		—		3,108
Other	377		—		—		—		—		377
Total	$	539,927	$	10,960	$	—	$	6,425	$	—	$	557,312

15

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

September 30, 2016	Pass		Watch		Special Mention		Substandard		Doubtful		Total
Single family	$	156,042	$	744	$	—	$	1,755	$	—	$	158,541
Multifamily	121,878		1,745		—		—		—		123,623
Commercial real estate non-owner occupied	116,880		695		396		—		—		117,971
Commercial real estate owner occupied	59,993		3,115		—		—		—		63,108
Construction and land development	16,228		—		—		2		—		16,230
Commercial business	31,677		8,945		214		—		—		40,836
Consumer and other:
Home equity lines of credit	14,874		—		—		95		—		14,969
Education	3,401		—		—		—		—		3,401
Other	462		—		—		—		—		462
	$	521,435	$	15,244	$	610	$	1,852	$	—	$	539,141

16

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The following tables provide additional detail of the activity in the allowance for loan losses, by portfolio segment, for the three months ended March 31, 2017 and 2016:

Three Months Ended March 31, 2017	Single Family		Multifamily			Commercial Real Estate - Non-owner Occupied			Commercial Real Estate - Owner-Occupied		Construction and Land  Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	923	$	983		$	1,584		$	942	$	403		$	544	$	72		$	5,451
Provision for loan losses	7		(127		)	(99		)	190		(64		)	197		(4		)	100
Loans charged-off	—		—			—			—		—			—		—			—
Recoveries	—		—			—			6		—			2		1			9
Ending balance	$	930	$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Period-ended amount allocated for:
Individually evaluated for impairment	$	2	$	—		$	—		$	—	$	—		$	—	$	51		$	53
Collectively evaluated for impairment	928		856			1,485			1,138		339			743		18			5,507
Ending balance	$	930	$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Loans:
Individually evaluated for impairment	$	1,414	$	1,699		$	—		$	—	$	—		$	—	$	86		$	3,199
Collectively evaluated for impairment	159,575		115,685			127,238			73,534		17,197			43,649		17,235			554,113
Ending balance	$	160,989	$	117,384		$	127,238		$	73,534	$	17,197		$	43,649	$	17,321		$	557,312

Three Months Ended March 31, 2016	Single Family			Multifamily			Commercial Real Estate - Non-owner Occupied		Commercial Real Estate - Owner-Occupied		Construction and Land  Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	1,031		$	1,340		$	1,122	$	530	$	344		$	302	$	78		$	4,747
Provision for loan losses	44			(160		)	99		49		(9		)	113		(11		)	125
Loans charged-off	(30		)	—			—		—		—			—		—			(30		)
Recoveries	13			—			—		1		—			5		2			21
Ending balance	$	1,058		$	1,180		$	1,221	$	580	$	335		$	420	$	69		$	4,863
Period-ended amount allocated for:
Individually evaluated for impairment	$	3		$	—		$	—	$	—	$	—		$	—	$	54		$	57
Collectively evaluated for impairment	1,055			1,180			1,221		580		335			420		15			4,806
Ending balance	$	1,058		$	1,180		$	1,221	$	580	$	335		$	420	$	69		$	4,863
Loans:
Individually evaluated for impairment	$	1,736		$	1,789		$	—	$	—	$	—		$	—	$	92		$	3,617
Collectively evaluated for impairment	150,756			119,351			116,420		49,647		17,250			38,110		18,755			510,289
Ending balance	$	152,492		$	121,140		$	116,420	$	49,647	$	17,250		$	38,110	$	18,847		$	513,906

17

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

 The following tables provide additional detail of the activity in the allowance for loan losses, by portfolio segment, for the six months ended March 31, 2017 and 2016:

Six Months Ended March 31, 2017	Single Family			Multifamily			Commercial Real Estate -Non-owner Occupied			Commercial Real Estate -Owner- Occupied		Construction and Land Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	980		$	1,015		$	1,519		$	813	$	344		$	500	$	73		$	5,244
Provision for loan losses	(50		)	(159		)	(34		)	319		(5		)	236		(7		)	300
Loans charged-off	—			—			—			—		—			—		—			—
Recoveries	—			—			—			6		—			7		3			16
Ending balance	$	930		$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Period-ended amount allocated for:
Individually evaluated for impairment	$	2		$	—		$	—		$	—	$	—		$	—	$	51		$	53
Collectively evaluated for impairment	928			856			1,485			1,138		339			743		18			5,507
Ending balance	$	930		$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Loans:
Individually evaluated for impairment	$	1,414		$	1,699		$	—		$	—	$	—		$	—	$	86		$	3,199
Collectively evaluated for impairment	159,575			115,685			127,238			73,534		17,197			43,649		17,235			554,113
Ending balance	$	160,989		$	117,384		$	127,238		$	73,534	$	17,197		$	43,649	$	17,321		$	557,312

Six Months Ended March 31, 2016	Single Family			Multifamily		Commercial Real Estate -Non-owner Occupied		Commercial Real Estate -Owner- Occupied		Construction and Land Development		Commercial Business			Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	1,073		$	1,013	$	1,091	$	513	$	330	$	498		$	80		$	4,598
Provision for loan losses	2			167		129		66		5		(87		)	(7		)	275
Loans charged-off	(30		)	—		—		—		—		—			(10		)	(40		)
Recoveries	13			—		1		1		—		9			6			30
Ending balance	$	1,058		$	1,180	$	1,221	$	580	$	335	$	420		$	69		$	4,863
Period-ended amount allocated for:
Individually evaluated for impairment	$	3		$	—	$	—	$	—	$	—	$	—		$	54		$	57
Collectively evaluated for impairment	1,055			1,180		1,221		580		335		420			15			4,806
Ending balance	$	1,058		$	1,180	$	1,221	$	580	$	335	$	420		$	69		$	4,863
Loans:
Individually evaluated for impairment	$	1,736		$	1,789	$	—	$	—	$	—	$	—		$	92		$	3,617
Collectively evaluated for impairment	150,756			119,351		116,420		49,647		17,250		38,110			18,755			510,289
Ending balance	$	152,492		$	121,140	$	116,420	$	49,647	$	17,250	$	38,110		$	18,847		$	513,906

18

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The following tables present additional detail of impaired loans, segregated by segment, as of and for the three and six month periods ended March 31, 2017 and 2016.  The unpaid principal balance represents the recorded balance prior to any partial charge-offs.  The recorded investment represents customer balances net of any partial charge-offs recognized on the loans by loan category.  The interest income recognized column represents all interest income on a loan reported on either a cash or accrual basis after the loan became impaired.

							Three months ended				Six months ended
March 31, 2017	Unpaid Principal Balance		Recorded Investment		Allowance for Loan Losses Allocated		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded:
Single family	$	1,273	$	1,142	$	—	$	1,158	$	12	$	1,257	$	25
Multifamily	1,733		1,699		—		1,711		18		1,722		36
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	4		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	113		35		—		35		—		35		—
With an allowance recorded:
Single family	272		272		2		273		4		182		9
Multifamily	—		—		—		—		—		—		—
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	51		51		51		51		1		51		1
	$	3,446	$	3,199	$	53	$	3,228	$	35	$	3,247	$	71

							Three months ended				Six months ended
March 31, 2016	Unpaid Principal Balance		Recorded Investment		Allowance for Loan Losses Allocated		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded:
Single family	$	1,573	$	1,425	$	—	$	1,310	$	14	$	1,267	$	28
Multifamily	1,854		1,789		—		1,803		19		1,812		38
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	116		38		—		39		—		82		—
With an allowance recorded:
Single family	311		311		3		361		3		378		7
Multifamily	—		—		—		—		—		—		—
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	54		54		54		55		1		55		2
	$	3,908	$	3,617	$	57	$	3,568	$	37	$	3,594	$	75

19

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The following is a summary of troubled debt restructured loans (TDRs) at March 31, 2017 and September 30, 2016:

	March 31, 2017		September 30, 2016
Troubled debt restructurings - accrual	$	2,691	$	3,021
Troubled debt restructurings - nonaccrual	—		—
	$	2,691	$	3,021

Modifications of loan terms as a TDR are generally in the form of an extension of payment terms or a lowering of the interest rate, although occasionally the Bank has reduced the outstanding principal balance.

There were no loans modified as a TDR during the three or six months ended March 31, 2017 and 2016.

There were no re-defaults of TDRs that occurred during the three or six months ended March 31, 2017 and 2016.

Certain of the Bank’s directors and executive officers are loan customers of the Bank.  As of March 31, 2017 and September 30, 2016, loans of approximately $9,899 and $7,813, respectively, were outstanding to such parties.  These loans were made on substantially the same terms as those prevailing for comparable transactions with other persons and do not involve more than the normal risk of collectability.

An analysis of such loans is as follows:

	Six Months Ended March 31, 2017
Balance, beginning	$	7,813
New loans originated	2,728
Draws on lines of credit	52
Principal repayments	(694		)
Balance, ending	$	9,899

20

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Note 6.Deposits

The following table presents the composition of deposits as of:

	March 31, 2017				September 30, 2016
	Amount		Percent		Amount		Percent
Checking Accounts:
Noninterest bearing	$	116,162	18.00	%	$	111,841	18.89	%
Interest bearing	142,311		22.05	%	135,866		22.95	%
	258,473		40.05	%	247,707		41.84	%
Passbook and Statement Savings	138,778		21.51	%	133,155		22.50	%
Variable Rate Money Market Accounts	70,094		10.86	%	64,593		10.91	%
Certificates of Deposit	177,968		27.58	%	146,522		24.75	%
	$	645,313	100.00	%	$	591,977	100.00	%

Certificate accounts equal to or over one hundred thousand dollars totaled $115,042 and $89,588 as of March 31, 2017 and September 30, 2016, respectively. Of these amounts, $38,674 and $26,154 are equal to or greater than two hundred fifty thousand dollars as of March 31, 2017 and September 30, 2016, respectively.

Note 7.Borrowings

The Bank maintains a master contract agreement with the Federal Home Loan Bank of Chicago (FHLB) that provides for borrowing of up to the maximum of 75 percent of the book value of the Bank’s first lien 1-4 family and multifamily real estate loans. The FHLB provides both fixed and floating rate advances. Floating rate advances are tied to short-term market rates of interest, such as LIBOR, Federal Funds or Treasury Bill rates. Fixed rate advances are priced in reference to market rates of interest at the time of the advance, namely the rates that the FHLB pays to borrowers at various maturities. In either case, interest is payable monthly with principal payable at maturity.

Advances are generally secured by a security agreement pledging a portion of the Bank’s residential real estate and multifamily loans. Pledged real estate mortgages, home equity lines of credit, and multifamily loans had a carrying value of $266,353 and $273,826 as of March 31, 2017, and September 30, 2016, respectively.

The Company had FHLB long-term advances with remaining contractual maturities greater than one year of $20,000 at each of March 31, 2017 and September 30, 2016. These advances are fixed rate/floating spread advances. This type of advance pays interest at a fixed rate adjusted quarterly by a spread which equals the difference between the FHLB three month advance index and three month LIBOR.

On January 19, 2017, the Company entered into a $4,000 unsecured line of credit with a correspondent bank. Interest is payable at a rate of one month LIBOR + 2.40%. As of March 31, 2017, there was no outstanding balance on the line of credit. The line is scheduled to mature on December 31, 2017.

21

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Borrowings were as follows as of March 31, 2017 and September 30, 2016:

	March 31, 2017				September 30, 2016
	Amount		Weighted Average Cost		Amount		Weighted Average Cost
FHLB advances:
Overnight advances	$	—	—	%	$	—	—	%
Long-term advances by year of maturity:
Year ended September 30, 2019	4,000		0.89		4,000		0.94
Year ended September 30, 2020	3,000		1.10		3,000		1.16
Year ended September 30, 2021	3,000		1.29		3,000		1.34
Year ended September 30, 2022	4,000		0.89		4,000		0.84
Year ended September 30, 2023	4,000		0.99		4,000		0.93
Year ended September 30, 2024	2,000		1.10		2,000		1.04
Total long-term FHLB advances	$	20,000	1.02	%	$	20,000	1.02	%
Line of credit	—		—		—		—

Note 8.Regulatory Capital

The Bank is subject to capital requirements adopted by the Office of the Comptroller of the Currency ("OCC"). These requirements include a ratio for common equity Tier 1 ("CETI") capital, a leverage ratio and Tier 1 capital ratios and an additional capital conservation buffer over these required capital ratios. Failure to maintain the required capital conservation buffer limits the ability of the Bank to pay dividends, repurchase shares or pay discretionary bonuses. The Company is exempt from consolidated capital requirements as those requirements do not apply to certain small savings and loan holding companies with assets under $1 billion.

Under the capital regulations, the minimum capital ratios are: (1) CETI capital ratio of 4.5% of risk-weighted assets; (2) a Tier 1 capital ratio of 6.0% of risk-weighted assets; (3) a total capital ratio of 8.0% of risk-weighted assets; and (4) a leverage ratio of 4.0%. CETI generally consists of common stock and retained earnings, subject to applicable regulatory adjustments and deductions.

In addition to the minimum CETI, Tier 1 and total capital ratios, the Bank is required to maintain a capital conservation buffer consisting of additional CETI capital greater than 2.5% of risk-weighted assets above the required minimum levels in order to avoid limitations on paying dividends, engaging in share repurchases, and paying discretionary bonuses based on percentages of eligible retained income that could be utilized for such actions. This capital conservation buffer requirement is being phased in for the Bank beginning in January 2016 at 0.625% of risk-weighted assets and increases by the same amount each year until fully implemented in January 2019.

The OCC's prompt corrective action standards require the Bank, to be considered "well-capitalized", to maintain a CETI ratio of 6.5%, a Tier 1 ratio of 8.0%, a total risk-based capital ratio of 10.0% and a leverage ratio of 5.0%. As of March 31, 2017, the Bank met all these requirements, including the full capital conservation buffer.

22

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The Bank’s actual capital amounts and ratios and those required by the regulatory standards are presented in the following tables. With respect to the capital conservation buffer, we have included the 1.250% increase for 2017 and the 0.625% increase for 2016 in our minimum capital adequacy ratios in the tables below.

At March 31, 2017	Actual				For Capital Adequacy Purposes Under Prompt Corrective Action Provisions				For Capital Adequacy Purposes with Capital Buffer				To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
CETI capital (to risk-weighted assets) - Westbury Bank	$	72,685	11.95	%	$	27,363	4.50	%	$	34,963	5.750	%	$	39,524	6.50	%
Tier 1 capital (to risk-weighted assets) - Westbury Bank	72,685		11.95	%	36,483		6.00	%	44,084		7.250	%	48,644		8.00	%
Total capital (to risk-weighted assets) - Westbury Bank	78,245		12.87	%	48,644		8.00	%	56,245		9.250	%	60,806		10.00	%
Leverage (to adjusted total assets) - Westbury Bank	72,685		10.03	%	28,987		4.00	%	N/A		N/A		36,234		5.00	%

At September 30, 2016	Actual				For Capital Adequacy Purposes Under Prompt Corrective Action Provisions				For Capital Adequacy Purposes with Capital Buffer				To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
CET1 capital (to risk-weighted assets) - Westbury Bank	$	71,383	12.61	%	$	25,472	4.50	%	$	29,010	5.125	%	$	36,793	6.50	%
Tier 1 capital (to risk-weighted assets) - Westbury Bank	71,383		12.61	%	33,963		6.00	%	37,500		6.625	%	45,283		8.00	%
Total capital (to risk-weighted assets) - Westbury Bank	76,627		13.54	%	45,283		8.00	%	48,821		8.625	%	56,604		10.00	%
Leverage (to adjusted total assets) - Westbury Bank	71,383		10.23	%	27,911		4.00	%	N/A		N/A		34,889		5.00	%

The following table reconciles the Bank’s stockholder's equity to regulatory capital as of March 31, 2017 and September 30, 2016:

	March 31, 2017			September 30, 2016
Stockholder's equity of the Bank	$	73,129		$	73,332
Less: Unrealized (gain) loss on securities	997			(561		)
Disallowed deferred tax assets	(1,441		)	(1,388		)
Tier 1, CETI and leverage capital	72,685			71,383
Plus: Allowable general valuation allowances	5,560			5,244
Total capital	$	78,245		$	76,627

Note 9.Commitments and Contingencies

The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to extend credit and involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the accompanying consolidated balance

23

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

sheets.  The contractual amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.

The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instruments for commitments to extend credit is represented by the contractual amount of those instruments.  The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.

The following off-balance sheet instruments were outstanding whose contract amounts represent credit risk:

	March 31, 2017		September 30, 2016
Commitments to extend commercial and residential mortgage credit:
Fixed rate	$	909	$	2,013
Adjustable rate	5,992		1,442
Unused commercial loan lines of credit	100,390		68,752
Unused home equity line of credit	28,083		27,315
Standby letters of credit	1,619		1,076
Commitment to sell loans	277		1,881

Commitments to extend credit are agreements to lend funds to a customer as long as there is no violation of any condition established in the underlying contract.  Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee.  As some such commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  The Company evaluates each customer’s creditworthiness on a case-by-case basis.  The Company generally extends credit only on a secured basis.

Unfunded commitments under lines of credit are commitments for possible future extensions of credit to existing customers.  These lines of credit ultimately may not be drawn upon to the total extent to which the Company is committed.

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party.  Those letters of credit are primarily issued to support public and private borrowing arrangements, and, generally, have terms of one year or less.  The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.  The Company holds collateral supporting those commitments if deemed necessary.  In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment.  The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount shown in the summary above.  If the commitment is funded, the Company would be entitled to seek recovery from the customer.  At March 31, 2017 and September 30, 2016, no amounts have been recorded as liabilities for the Company’s potential obligations under these commitments.

Litigation

In the normal course of business, the Company is involved in various legal proceedings. In the opinion of management, any liabilities resulting from such proceedings would not have a material adverse effect on the Company's consolidated financial statements.

Note 10.Fair Value Measurements

ASC Topic 820, Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants.  ASC Topic 820 requires the use of valuation techniques that are consistent with the market approach, the income approach and/or the cost approach.  Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability.  Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect the reporting entity’s own

24

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances.  In that regard, ASC Topic 820 establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:

Level 1:  Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2:  Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3:  Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the fair value hierarchy, is set forth below.

Financial Instruments Recorded at Fair Value on a Recurring Basis

Securities available-for-sale:  The fair value of the Company’s securities available-for-sale is determined using Level 2 inputs, which are derived from readily available pricing sources and third-party pricing services for comparable instruments.  The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, treasury yield curves, trading levels, credit information and credit terms, among other factors. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the fair value hierarchy.

Derivatives:  The fair values of the Company’s embedded derivatives related to certain certificates of deposit are determined using inputs that are observable or that can be corroborated by observable market data (such as the S&P 500 Index and the 10- year U.S. Treasury rate) and, therefore, are classified within Level 2 of the fair value hierarchy.

25

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Assets and liabilities recorded at fair value on a recurring basis

The following table summarizes financial instruments measured at fair value on a recurring basis, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value as of:

			Fair Value Measurements
March 31, 2017	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale
U.S. Government and agency securities	$	25	$	—	$	25	$	—
U.S. Government agency residential mortgage-backed securities	51,103		—		51,103		—
U.S. Government agency collateralized mortgage obligations	5,606		—		5,606		—
U.S. Government agency commercial mortgage-backed securities	15,419		—		15,419		—
Municipal securities-tax exempt	30,340		—		30,340		—
Municipal securities-taxable	12,715		—		12,715		—
Total securities available-for-sale	$	115,208	$	—	$	115,208	$	—
Derivatives	$	—	$	—	$	—	$	—
Liabilities
Derivatives	$	—	$	—	$	—	$	—

			Fair Value Measurements
September 30, 2016	Total		Quoted Prices in Active Markets  for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale
U.S. Government and agency securities	$	25	$	—	$	25	$	—
U.S. Government agency residential mortgage-backed securities	40,750		—		40,750		—
U.S. Government agency collateralized mortgage obligations	2,680		—		2,680		—
U.S. Government agency commercial mortgage-backed securities	11,526		—		11,526		—
Municipal securities-tax exempt	25,682		—		25,682		—
Municipal securities-taxable	13,109		—		13,109		—
Total securities available-for-sale	$	93,772	$	—	$	93,772	$	—
Derivatives	$	98	$	—	$	98	$	—
Liabilities
Derivatives	$	98	$	—	$	98	$	—

26

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The Company did not have any transfers between Level 1, Level 2, and Level 3 of the fair value hierarchy during the six months ended March 31, 2017.  The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and, therefore, result in a transfer between levels.

Financial Instruments Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain financial instruments at fair value on a nonrecurring basis in accordance with U.S. generally accepted accounting principles.

Impaired loans:  The Company does not record loans at fair value on a recurring basis.  The specific reserves for collateral-dependent impaired loans are based on the fair value of the collateral less estimated costs to sell. The fair value of collateral is determined based on appraisals.  In some cases, adjustments were 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.  When significant adjustments were based on unobservable inputs, the resulting fair value measurement has been categorized as a Level 3 measurement.  Impaired loans with a carrying amount of $323 and $52 had a valuation allowance of $53 and $52 included in the allowance for loan losses to reflect their fair value as of March 31, 2017 and September 30, 2016, respectively.

Foreclosed real estate:  The Company does not record foreclosed real estate owned at fair value on a recurring basis.  The fair value of foreclosed real estate was determined using Level 3 inputs based on appraisals or broker pricing opinions.  In some cases, adjustments were made to these values due to various factors including the age of the appraisal, age of comparables included in the appraisal, and known changes in the market and in collateral.  Foreclosed real estate is measured at fair value less estimated costs to sell at the date of foreclosure.  Subsequent to foreclosure, additional writedowns may be recorded based on changes to the fair value of the assets.

Mortgage servicing rights:  Mortgage servicing rights (MSRs) do not trade in an active, open market with readily observable prices.  While sales of MSRs do occur, the precise terms and conditions typically are not readily available.  Accordingly, the Company estimates the fair value of MSRs using discounted cash flow models incorporating numerous assumptions from the perspective of market participants including servicing income, servicing costs, market discount rates, prepayments speeds, and default rates.  Due to the nature of the valuation inputs, MSRs are classified within Level 3 of the valuation hierarchy.  As of March 31, 2017, mortgage servicing rights with a carrying amount of $894 had a valuation allowance of $60 to reflect their fair value of $834.  As of September 30, 2016, mortgage servicing rights with a carrying amount of $1,012 had a valuation allowance of $212 to reflect their fair value of $800.

Assets and liabilities recorded at fair value on a non-recurring basis

			Fair Value Measurements
March 31, 2017	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Impaired loans	$	270	$	—	$	—	$	270
Foreclosed real estate	—		—		—		—
Mortgage servicing rights	834		—		—		834

27

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

			Fair Value Measurements
September 30, 2016	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Impaired loans	$	—	$	—	$	—	$	—
Foreclosed real estate	99		—		—		99
Mortgage servicing rights	800		—		—		800

Disclosure of fair value information about financial instruments, for which it is practicable to estimate that value, is required whether or not recognized in the accompanying consolidated balance sheets.  In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques.  Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows.  In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instruments.  Certain financial instruments with a fair value that is not practicable to estimate and all non-financial instruments are excluded from the disclosure requirements.  Accordingly, the aggregate fair value amounts presented herein do not necessarily represent the underlying value of the Company for assets and liabilities not previously described.  The Company, in estimating its fair value disclosures for financial instruments not described above, used the following methods and assumptions:

Cash and cash equivalents:  The carrying amounts of cash and cash equivalents reported in the accompanying consolidated balance sheets approximate those assets’ fair values.

Securities held to maturity: The fair values of securities held to maturity are based on quoted market prices for similar securities, adjusted for differences in security characteristics.

Loans:  For variable-rate mortgage loans that re-price frequently and with no significant change in credit risk, fair values are based on carrying values.  The fair values for fixed rate residential mortgage loans are based on quoted market prices for similar loans sold in conjunction with sale transactions, adjusted for differences in loan characteristics.  The fair values for commercial real estate or business loans, rental property mortgage loans, and consumer and other loans are estimated using discounted cash flow analyses and using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality.

Loans held for sale:  The fair values of loans held for sale are based on commitments on hand from investors or prevailing market prices.

Federal Home Loan Bank stock:  The carrying amount of FHLB stock approximates its fair value based on the redemption provisions of the FHLB.

Accrued interest receivable and payable:  The carrying amounts of accrued interest receivable and payable approximate their fair values.

Deposits:  The fair value disclosed for interest-bearing and non-interest-bearing checking accounts, savings accounts, and money market accounts are equal to the amount payable on demand at the reporting date (i.e., their carrying amounts).  The fair values of fixed rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates of deposit to a schedule of aggregated expected monthly maturities of the outstanding certificates of deposit.

Advances from the Federal Home Loan Bank:  The fair values of FHLB advances are estimated using discounted cash flow analyses, based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. The carrying amounts of short term FHLB advances reported in the consolidated balance sheets approximated those liabilities' fair values.

28

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Advance payments by borrowers for property taxes and insurance:  The carrying amounts of the advance payments by borrowers for property taxes and insurance approximate their fair values.

Mortgage banking derivatives:  The fair value of commitments to originate mortgage loans held for sale is estimated by comparing the Company’s cost to acquire mortgages and the current price for similar mortgage loans, taking into account the terms of the commitments and the credit worthiness of the counterparties.  The fair value of forward commitments to sell residential mortgage loans is the estimated amount that the Bank would receive or pay to terminate the forward delivery contract at the reporting date based on market prices for similar financial instruments.  The fair value of these derivative financial instruments was not material at either March 31, 2017 and September 30, 2016.

The estimated fair values and related carrying amounts of the Company’s financial instruments as of the dates noted below were as follows:

	March 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	44,086	$	44,086	$	44,086	$	—	$	—
Securities available for sale	115,208		115,208		—		115,208		—
Securities held to maturity	2,293		2,324		—		2,324		—
Loans held for sale, net	277		277		—		277		—
Loans, net	551,611		547,751		—		—		547,751
Federal Home Loan Bank stock	1,301		1,301		—		—		1,301
Mortgage servicing rights	834		834		—		—		834
Accrued interest receivable	2,351		2,351		2,351		—		—
Derivative asset	—		—		—		—		—
Financial liabilities:
Deposits	645,313		608,173		116,162		—		492,011
Short-term advances from Federal Home Loan Bank	—		—		—		—		—
Long-term advances from Federal Home Loan Bank	20,000		18,734		—		—		18,734
Advance payments by borrowers for property taxes and insurance	1,818		1,818		1,818		—		—
Accrued interest payable	6		6		6		—		—
Derivative liability	—		—		—		—		—

29

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

	September 30, 2016
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	29,613	$	29,613	$	29,613	$	—	$	—
Securities available for sale	93,772		93,772		—		93,772		—
Securities held to maturity	2,293		2,392		—		2,392		—
Loans held for sale, net	1,881		1,881		—		1,881		—
Loans, net	533,759		536,434		—		—		536,434
Federal Home Loan Bank stock	1,330		1,330		—		—		1,330
Mortgage servicing rights	800		800		—		—		800
Accrued interest receivable	2,173		2,173		2,173		—		—
Derivative asset	98		98		—		98		—
Financial liabilities:
Deposits	591,977		574,787		111,841		—		462,946
Short-term advances from Federal Home Loan Bank	—		—		—		—		—
Long-term advances from Federal Home Loan Bank	20,000		19,472		—		—		19,472
Advance payments by borrowers for property taxes and insurance	5,455		5,455		5,455		—		—
Accrued interest payable	5		5		5		—		—
Derivative liability	98		98		—		98		—

Note 11.Employee Stock Ownership Plan

The Bank maintains a leveraged employee stock ownership plan ("ESOP") that covers all employees meeting certain minimum age and service requirements. The ESOP was established in conjunction with the Company's stock offering completed in April 2013 and operates on a plan year ending December 31. The ESOP initially borrowed $4,100 from the Company and used those funds to acquire 411,403 shares, or 8.0% of the total number of shares issued by the Company in its initial public offering. The shares were acquired at a price of $10.00 per share.

The Bank makes contributions to the ESOP equal to or greater than the ESOP's debt service. Additional principal payments, which serve to pay down the debt and accelerate the release of unallocated ESOP shares to plan participants, may be made by the Bank at the discretion of its Board of Directors. An additional principal payment of $264 was made at December 31, 2016. The ESOP shares were pledged as collateral for its debt obligations to the Company. As the debt is repaid, shares are committed to be released from collateral and allocated to active participants at calendar year end, based on the proportion of debt service paid in the year. The debt repayment and release of shares generally occurs at December 31, the plan year end date. The Company accounts for its ESOP in accordance with ASC 718-40. Accordingly, because the debt is intercompany, it is eliminated in consolidation for presentation in these financial statements. The shares pledged as collateral are reported as unearned ESOP shares in the accompanying balance sheet. Total ESOP shares may be reduced as a result of employees leaving the Company as shares that have previously been released to those exiting employees may be removed from the ESOP and transferred to that employee.

As shares are committed to be released from collateral, the Company reports compensation expense equal to the current market price of the released shares, and the released shares become outstanding for earnings per share computations. During the three months ended March 31, 2017 and 2016, 10,285 and 10,285 shares were committed to be released, respectively. The total ESOP compensation expense recorded for the three months ended March 31, 2017 and 2016 was $214 and $192, respectively. During the six months ended March 31, 2017 and 2016, 20,570 and 15,427 shares were committed to be released, including 10,285 and 5,142, respectively, which were released and available for allocation at December 31, 2017 and 2016, respectively,

30

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

concurrent with the payment of the annual debt service on the ESOP loan. The total ESOP compensation expense recorded for the six months ended March 31, 2017 and 2016 was $421 and $283, respectively.

The ESOP shares as of March 31, 2017 and September 30, 2016 were as follows (in thousands, except share data):

	March 31, 2017		September 30, 2016
Allocated shares to active participants	93,754		52,773
Shares committed to be released	10,285		30,855
Unallocated shares	298,268		318,838
Total ESOP shares	402,307		402,466
Fair value of unallocated shares	$	6,210	$	6,227

Note 12. Compensation Equity Plans

ASC Topic 718 requires that the grant date fair value of equity awards to employees be recognized as compensation expense over the period during which an employee is required to provide service in exchange for such award.

The following table summarizes the impact of the Company's share-based payment plans in the financial statements for the periods shown:

	Three Months Ended March 31,				Six Months Ended March 31,
	2017		2016		2017		2016
Total cost of stock grant plan during the period	$	146	$	151	$	280	$	302
Total cost of stock option plan during the period	67		58		131		115
Total cost of share-based payment plans during the period	$	213	$	209	$	411	417
Amount of related income tax benefit recognized in income	$	84	$	82	$	161	$	164

The Company adopted the Westbury Bancorp Inc 2014 Equity Incentive Plan (the "Plan") in 2014. In June 2014, the Company's stockholders approved the Plan which authorized the issuance under the Plan of up to 203,665 restricted stock awards and up to 509,162 stock options. As of December 31, 2016 there were 5,536 restricted stock awards and 34,784 options available for future grants. At the Company's annual meeting of stockholders, held on February 15, 2017, the stockholders of the Company approved an amendment to the Plan authorizing 20,000 additional restricted stock awards and an additional 200,000 stock options available for issuance as awards under the Plan. As of March 31, 2017 there were 27,980 restricted stock awards and 238,910 options available for future grants.

Annual equity-based incentive awards are typically granted to selected officers and employees mid-year. Options are granted with an exercise price equal to no less than the market price of the Company's common shares at the date of grant: those option awards generally vest pro-rata over five years of service and have 10-year contractual terms. Restricted shares typically vest pro-rata over a five year period. Equity awards may also be granted at other times throughout the year in connection with the recruitment and retention of officers and employees.

ASC Topic 718 requires that the grant date fair value of equity awards to employees be recognized as compensation expense over the period during which an employee is required to provide service in exchange for such award.

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Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The following table summarizes stock options outstanding for the three and six months ended March 31, 2017:

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of December 31, 2016	464,185	$	16.49
Granted	—	—
Exercised	5,896	15.49
Expired or canceled	300	17.43
Forfeited	3,826	15.20
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of September 30, 2016	474,132	$	16.46
Granted	2,750	21.00
Exercised	5,896	15.49
Expired or canceled	450	17.4
Forfeited	16,373	15.92
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model based on certain assumptions. Expected volatility is based on historical volatility and the expectations of future volatility of Company shares. The risk free interest rate for periods within the contractual term of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. Since options were first awarded in June 2014 and the Company has had a minimal number of options exercised by participants in the Plan, the expected life of options is estimated based on the assumption that options will be exercised evenly throughout their life after vesting and represents the period of time that options granted are expected to remain outstanding.

32

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

The following assumptions were used for options granted during the six months ended March 31:

	2017			2016
Risk-free interest rate	2.19		%	1.71		%
Expected volatility of Company's stock	15.74		%	7.73		%
Expected dividend yield	—		%	—		%
Expected life of options (years)	7.5			7.5
Weighted average fair value per option of options granted during the period	$	5.14		$	2.76

The total intrinsic value of options exercised during each of the six months ended March 31, 2017 and 2016 was $36 and $10, respectively. The total intrinsic value of options exercised during each of the three months ended March 31, 2017 and 2016

was $36 and $10, respectively.

The following is a summary of changes in restricted shares for the three and six months ended March 31, 2017:

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at December 31, 2016	118,105	$	15.60
Granted	—	—
Vested	1,222	15.20
Forfeited	2,444	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at September 30, 2016	114,883	$	15.20
Granted	7,500	21.50
Vested	1,222	15.20
Forfeited	6,722	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

The total intrinsic value of restricted shares that vested during both of the three and six months ended March 31, 2017 and 2016 was $27 and zero, respectively.

As of March 31, 2017, there was $2.1 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements (including share option and nonvested share awards) granted under the Plan. At March 31, 2017, the weighted-average period over which the unrecognized compensation expense is expected to be recognized was approximately 2.7 years.

33

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Note 13. Condensed Parent Company Financial Information

The condensed financial statements of Westbury Bancorp, Inc. (parent company only) are presented for the periods indicated below:

Balance Sheets
	March 31,		September 30,
	2017		2016
Assets
Cash and interest bearing deposits	$	137	$	251
Investments	41		55
Loan to ESOP	3,094		3,620
Investment in subsidiary	75,247		75,872
Other assets	2,700		2,397
Total assets	$	81,219	$	82,195
Liabilities and Stockholders' Equity
Total liabilities	$	20	$	26
Stockholders' equity	81,199		82,169
Total liabilities and stockholders' equity	$	81,219	$	82,195

Statements of Operations
	Three Months Ended March 31,						Six Months Ended March 31,
	2017			2016			2017			2016
Interest and other income	$	30		$	33		$	62		$	65
Interest and other expense	174			130			316			251
Loss before income tax benefit and equity in undistributed net income of subsidiary	(144		)	(97		)	(254		)	(186		)
Income tax benefit	(39		)	(21		)	(65		)	(39		)
Loss before equity in undistributed net income of subsidiary	(105		)	(76		)	(189		)	(147		)
Equity in undistributed net income of subsidiary	851			949			1,682			2,059
Net income	$	746		$	873		$	1,493		$	1,912

34

Westbury Bancorp, Inc. and Subsidiary

Notes to Unaudited Consolidated Financial Statements

(Dollars in Thousands, except per share data)

Statements of Cash Flows
	For Six Months Ended March 31,
	2017			2016
Cash Flows From Operating Activities
Net income	$	1,493		$	1,912
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Equity in undistributed net income of subsidiary	(1,682		)	(2,059		)
Net change in other liabilities	(6		)	(56		)
Net change in other assets	108			693
Net cash provided by (used in) operating activities	(87		)	490
Cash Flows From Investing Activities
Sales and maturities of securities	14			40
Payments received on ESOP loan	526			158
Dividend received from bank subsidiary	750			2,000
Net cash provided by investing activities	1,290			2,198
Cash Flows From Financing Activities
Stock options exercised	92			64
Repurchase of common stock	(1,409		)	(3,242		)
Net cash used in financing activities	(1,317		)	(3,178		)
Net decrease in cash	(114		)	(490		)
Cash
Beginning of period	251			1,440
End of period	$	137		$	950

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ITEM 2.  MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This Quarterly Report contains forward-looking statements, which can be identified by the use of words such as “estimate,” “project,” “believe,” “intend,” “anticipate,” “assume,” “plan,” “seek,” “expect,” “will,” “may,” “should,” “indicate,” “would,” “believe,” “contemplate,” “continue,” “intend,” “target” and words of similar meaning.  These forward-looking statements include, but are not limited to:

• statements of our goals, intentions and expectations;

• statements regarding our business plans, prospects, growth and operating strategies;

• statements regarding the asset quality of our loan and investment portfolios; and

• estimates of our risks and future costs and benefits.

These forward-looking statements are based on our current beliefs and expectations and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control.  In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change.  We are under no duty to and do not undertake any obligation to update any forward-looking statements after the date of this Quarterly Report.

The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations expressed in the forward-looking statements:

• our ability to manage our operations under current economic conditions nationally and in our market area;

• adverse changes in the financial industry, securities, credit and national and local real estate markets (including real estate values);

• significant increases in our loan losses, including as a result of our inability to resolve classified loans, and changes in management’s assumptions in determining the adequacy of the allowance for loan losses;

• credit risks of lending activities, including changes in the level and trend of loan delinquencies and charge-offs and in our allowance for loan losses and provision for loan losses;

• competition among depository and other financial institutions;

• our success in increasing our commercial business, commercial real estate and multifamily lending while maintaining our asset quality;

• we have in recent periods identified multi-family, commercial real estate and construction loans as areas for lending emphasis. We have had, in particular, higher levels of commercial real estate lending (including non-owner occupied commercial real estate loans) in recent periods. Although we believe we have employed the appropriate management, sales, and administrative personnel (including personnel tasked with managing and monitoring loan concentrations in these areas), as well as installed the appropriate systems and procedures, to support this lending emphasis and higher levels of loans in these categories, these types of loans have historically carried greater risk of payment default than loans to retail borrowers. As the volume of commercial lending in these loan categories increases, our credit risk may increase. Construction loans have the additional risk of potential non-completion of the project. In the event of increased defaults from commercial borrowers or non-completion of construction projects, our provision for loan losses would further increase and loans may be written off and, therefore, earnings would be reduced. In addition, costs associated with the administration of problem loans increase and, therefore, earnings would be further reduced. Further, as the portion of the Company's loans secured by real estate increases (including those related to construction projects), the Company becomes increasingly exposed to fluctuations in real estate values and the real estate markets, as well as being exposed to potential environmental liabilities and related compliance burdens.  If we fail to adequately monitor and evaluate trends in the real estate markets and to assess potential environmental risks, the value of the collateral we hold may be less than expected;

• our success in introducing new financial products;

• our ability to attract and maintain deposits;

36

• our ability to retain customer accounts, achieve increased operating efficiencies and enhance profitability following the closing of underperforming branch offices;

• changes in interest rates generally, including changes in the relative differences between short term and long term interest rates and in deposit interest rates, that may affect our net interest margin and funding sources;

• fluctuations in the demand for loans, which may be affected by the number of unsold homes, land and other properties in our market areas and by declines in the value of real estate in our market area;

• changes in consumer spending, borrowing and savings habits;

• further declines in the yield on our assets resulting from the current low interest rate environment;

• the results of examinations by our regulators, including the possibility that our regulators may, among other things, require us to increase our allowance for loan losses, write down assets, change our regulatory capital position, limit our ability to borrow funds, make dividend payments or maintain or increase deposits;

• changes in the level of government support of housing finance;

• our ability to enter new markets successfully and capitalize on growth opportunities;

• changes in laws or government regulations or policies affecting financial institutions, including changes in the regulations implementing the Dodd-Frank Act, the JOBS Act and similar future laws, which could result in, among other things, increased deposit insurance premiums and assessments, capital requirements, and regulatory fees and compliance costs;

• changes in accounting policies and practices, as may be adopted by the bank regulatory agencies, the Financial Accounting Standards Board, the Securities and Exchange Commission and the Public Company Accounting Oversight Board;

• changes in our compensation and benefit plans;

• our ability to retain key members of our senior management team and to address staffing needs to respond to demand or to implement our strategic plans;

• loan delinquencies and changes in the underlying cash flows of our borrowers;

• our ability to control costs and expenses, particularly those associated with operating as a publicly traded company;

• changes in the financial condition or future prospects of issuers of securities that we own;

• the ability of third-party service providers to perform their obligations to us;

• the availability, effectiveness and security of our information technology systems and our ability to secure confidential information through the use of our computer and other technology systems and networks;

• other economic, competitive, governmental, regulatory and operational factors affecting our operations, pricing, products and services described elsewhere in this report, including any future changes in tax rates and the resulting impact such changes may have on the value of any deferred tax assets and liabilities and any investment securities recorded in our financial statements; and

• the impact of reputational risk created by any of the foregoing developments on such matters such as business generation and retention, funding and liquidity.

Because of these and a wide variety of other uncertainties, our actual future results may be materially different from the results indicated by these forward-looking statements.

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Critical Accounting Policies

There are no material changes to the critical accounting policies disclosed in Westbury Bancorp, Inc.’s Annual Report on Form 10-K for the fiscal year ended September 30, 2016.

Overview

Our Business. The Company is a Maryland corporation and the savings and loan holding company for Westbury Bank, which was formed in connection with the mutual-to-stock conversion of the Bank's former mutual holding company, WBSB Bancorp, MHC, in 2013. Westbury Bank is a federally-chartered savings bank headquartered in West Bend, Wisconsin.

We provide financial services to individuals, families and businesses through our eight banking offices located in Washington County, Wisconsin and Waukesha County, Wisconsin. We also operate loan production offices in Madison, Wisconsin, located in Dane County, and Appleton, Wisconsin, located in Outagamie County. In addition, although our current operations are not focused in Milwaukee County, Wisconsin, we are affected by conditions in Milwaukee County because our loan portfolio includes a significant number of loans that are secured by real estate or that have borrowers located in Milwaukee County. Also, a number of our customers who reside in Washington or Waukesha Counties are employed in Milwaukee County, and the operations of our commercial customers depend in part on sales of products and services to individuals or other businesses located in Milwaukee County.

Our principal business consists of attracting retail and commercial deposits from the general public in our market area and investing those deposits, together with funds generated from operations, and to a lesser extent, borrowings, in one- to four-family residential real estate loans, commercial and multi-family real estate loans, commercial business loans and construction loans, and, to a lesser extent, consumer loans, including home equity lines of credit and automobile loans. A significant majority of our deposits are transaction accounts, which we believe are less susceptible to large-scale withdrawals than certificates of deposit as a result of changes in interest rates, and which we believe have a lower cost of funds over various interest rate cycles. We also purchase investment securities consisting primarily of government-sponsored mortgage-backed securities, government-sponsored debentures, municipal securities and corporate securities.

Our results of operations depend primarily on our net interest income. Net interest income is the difference between the interest income we earn on our interest-earning assets and the interest we pay on our interest-bearing liabilities. Our results of operations also are affected by our provision for loan losses, non-interest income and non-interest expense. Non-interest income consists primarily of service charges on deposit accounts, loan servicing income, gains on sales of securities and loans, debit card income, income from bank-owned life insurance and miscellaneous other income. Non-interest expense consists primarily of expenses related to compensation and employee benefits, occupancy and equipment, data processing, federal deposit insurance premiums, ATM charges, professional fees, advertising and other operating expenses.

Our results of operations also may be affected significantly by general and local economic and competitive conditions, changes in market interest rates, governmental policies and actions of regulatory authorities.

Comparison of Financial Condition at March 31, 2017 and September 30, 2016

Total Assets.  Total assets increased by $52.9 million, or 7.5%, to $755.5 million at March 31, 2017 from $702.6 million at September 30, 2016.  The increase in total assets was primarily the result of an increase in cash and cash equivalents of $14.5 million, net loans of $17.9 million and securities available for sale of $21.4 million.

Cash and Cash Equivalents. Cash and cash equivalents increased by $14.5 million, or 48.9%, to $44.1 million at March 31, 2017 from $29.6 million at September 30, 2016. The increase was the result of normal fluctuations in cash and due from banks between those dates.

Net Loans.  Net loans increased by $17.9 million, or 3.3%, to $551.6 million at March 31, 2017 from $533.8 million at September 30, 2016.  Owner-occupied commercial real estate loans increased by $10.4 million, non-owner occupied commercial real estate loans by $9.3 million, commercial business loans by $2.8 million, single family loans by $2.4 million, and construction and land development loans by $1.0 million, which increases were offset by decreases in multifamily loans of $6.2 million and home equity lines of credit of $1.1 million. The increases in commercial loans and commercial real estate loans resulted from our continued efforts to grow these segments of the loan portfolio, particularly loans secured by owner-occupied properties. The increase in construction and land development loans resulted from progress draws related to partial completion of projects during the period. The decrease in multifamily loans resulted from anticipated loan payoffs while the decrease in home equity lines of credit was due to normal fluctuations in outstanding balances over the year to date period.

38

Investment Securities.  Investment securities available for sale increased $21.4 million, or 22.9%, to $115.2 million at March 31, 2017 from $93.8 million at September 30, 2016. Mortgage-backed securities and collateralized mortgage obligations increased $17.2 million and municipal securities increased $4.3 million between these dates. These changes occurred as we invested new deposit balances and repositioned the investment portfolio through normal portfolio management.

Net unrealized loss on securities increased by $2.6 million to $1.6 million at March 31, 2017 from a net unrealized gain of $923,000 at September 30, 2016, reflecting the effect of an increase in market interest rates after the November U.S. elections.  At March 31, 2017, investment securities classified as available-for-sale consisted entirely of government-sponsored enterprise mortgage-backed securities and municipal securities. At March 31, 2017, investment securities classified as held to maturity consisted entirely of municipal securities.

The outstanding balances of investment securities held to maturity was unchanged at $2.3 million at March 31, 2017 and September 30, 2016.

Foreclosed Real Estate.  Foreclosed real estate decreased $99,000, or 100.0%, to zero at March 31, 2017 from $99,000 at September 30, 2016, as we sold $90,000 of foreclosed properties and recorded valuation adjustments of $9,000 during the six month period ended March 31, 2017.  At March 31, 2017, we held no foreclosed real estate.

Cash Surrender Value of Bank-Owned Life Insurance. Cash surrender value of bank-owned life insurance increased $222,000, or 1.6%, to $14.5 million at March 31, 2017 from $14.2 million at September 30, 2016.

Deferred Tax Asset. The deferred tax asset increased $139,000, or 2.6%, to $5.6 million at March 31, 2017 from $5.4 million at September 30, 2016, due to an increase in the deferred tax asset relating to unrealized losses on investment securities available for sale incurred during the six months ended March 31, 2017, offset by the accrual of income tax expense as a result of the Company recording taxable income for the period.

Deposits.  Deposits increased $53.3 million, or 9.0%, to $645.3 million at March 31, 2017 from $592.0 million at September 30, 2016.  Our core deposits, which we consider to be our non-interest bearing and interest bearing checking accounts, passbook and statement savings accounts, and variable rate money market accounts, increased $21.9 million, or 4.9%, to $467.3 million at March 31, 2017 from $445.5 million at September 30, 2016.  In particular, variable rate money market accounts increased by $5.5 million, or 8.5%, to $70.1 million at March 31, 2017 from $64.6 million at September 30, 2016 while noninterest bearing deposits increased by $4.3 million, or 3.9%, to $116.2 million at March 31, 2017 from $111.8 million at September 30, 2016. Certificates of deposit increased $31.4 million, or 21.5%, to $178.0 million at March 31, 2017 from $146.5 million at September 30, 2016.   Growth in certificates of deposit was generated primarily through the use of Internet listing services to attract balances from other financial institutions and through relationships with local municipalities.

Short Term Advances from FHLB. Short-term advances from the FHLB were zero at both March 31, 2017 and September 30, 2016. We anticipate continuing to use short term advances from time to time to manage liquidity.

Long Term Advances from FHLB. Long-term advances from the FHLB were unchanged at $20.0 million at March 31, 2017 and September 30, 2016.

Advance Payments By Borrowers For Property Taxes and Insurance.  Advance payments by borrowers for property taxes and insurance decreased by $3.6 million, or 66.7%, to $1.8 million at March 31, 2017 from $5.5 million at September 30, 2016 due to seasonal disbursements to customers in December 2016 to enable the payment of mortgagees’ property taxes offset by ongoing monthly payments by borrowers. 

Total Stockholders' Equity.  Total stockholders' equity decreased $549,000 to $79.1 million at March 31, 2017 from $79.6 million at September 30, 2016.  The decrease resulted primarily from a decrease in other comprehensive income of $1.6 million and the repurchase of 65,666 shares of common stock for $1.4 million during the quarterly period ended March 31, 2017, offset by net income of $1.5 million during the same period, the allocation of ESOP shares of $421,000 and stock based compensation expense of $411,000.

39

Delinquent Loans

The following table sets forth our loan delinquencies, including non-accrual loans, by type and amount at the dates indicated:

	30-59 Days			Loans Delinquent For 60-89 Days			90 Days and Over			Total
	Number	Amount		Number	Amount		Number	Amount		Number	Amount
	(Dollars in thousands)
At March 31, 2017:
Real estate loans:
Single family	8	$	799	—	$	—	5	$	365	13	$	1,164
Multi-family	—	—		—	—		—	—		—	—
Commercial real estate - non-owner occupied	—	—		—	—		—	—		—	—
Commercial real estate - owner occupied	—	—		—	—		—	—		—	—
Construction and land	—	—		—	—		—	—		—	—
Total real estate	8	799		—	—		5	365		13	1,164
Commercial business loans	—	—		—	—		—	—		—	—
Consumer loans:
Home equity lines of credit	—	—		—	—		1	27		1	27
Education	4	48		4	39		9	60		17	147
Other consumer loans	—	—		—	—		—	—		—	—
Total consumer loans	4	48		4	39		10	87		18	174
Total	12	$	847	4	$	39	15	$	452	31	$	1,338
At September 30, 2016:
Real estate loans:
Single family	5	$	239	3	$	426	2	$	73	10	$	738
Multi-family	—	—		—	—		—	—		—	—
Commercial real estate - non-owner occupied	—	—		—	—		—	—		—	—
Commercial real estate - owner occupied	—	—		—	—		—	—		—	—
Construction and land	—	—		—	—		—	—		—	—
Total real estate	5	239		3	426		2	73		10	738
Commercial business loans	—	—		—	—		—	—		—	—
Consumer loans:
Home equity lines of credit	—	—		—	—		1	27		1	27
Education	3	11		4	39		7	149		14	199
Other consumer loans	—	—		—	—		—	—		—	—
Total consumer loans	3	11		4	39		8	176		15	226
Total	8	$	250	7	$	465	10	$	249	25	$	964

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Classified Assets

The following table details the Company’s classified and Special Mention loans and assets as graded by the Company at the dates indicated:

	At March 31, 2017		At September 30, 2016
	(In thousands)
Classified Loans:
Doubtful	$	—	$	—
Substandard — performing:
Real estate loans:
Single family	1,225		1,418
Multi-family	—		—
Commercial real estate - non-owner occupied	—		—
Commercial real estate - owner occupied	828		—
Construction and land	1		2
Total real estate loans	2,054		1,420
Commercial business loans	3,897		—
Consumer loans:
Home equity lines of credit	66		68
Other consumer loans	—		—
Total consumer loans	66		68
Total substandard — performing	6,017		1,488
Substandard — Nonperforming:
Real estate loans:
Single family	381		337
Multi-family	—		—
Commercial real estate - non-owner occupied	—		—
Commercial real estate - owner occupied	—		—
Construction and land	—		—
Total real estate loans	381		337
Commercial business loans	—		—
Consumer loans:
Home equity lines of credit	27		27
Other consumer loans	—		—
Total consumer loans	27		27
Total substandard — nonperforming	408		364
Total classified loans	6,425		1,852
Foreclosed real estate	—		99
Total classified assets	$	6,425	$	1,951
Special mention:
Real estate loans:
Single family	$	—	$	—
Multi-family	—		—
Commercial real estate - non-owner occupied	—		396
Commercial real estate - owner occupied	—		—
Construction and land	—		—
Total real estate loans	—		396
Commercial business loans	—		214
Consumer loans:
Home equity lines of credit	—		—
Other consumer loans	—		—
Total consumer loans	—		—
Total special mention	—		610
Total classified assets and special mention loans	$	6,425	$	2,561

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Non-Performing Assets

The following table sets forth information regarding our non-performing assets and troubled debt restructurings at the dates indicated.  The information reflects net charge-offs but not specific reserves.  Troubled debt restructurings include loans where the borrower is experiencing financial difficulty and for which either a portion of interest or principal has been forgiven or an extension of term granted, or for loans modified at interest rates materially less than current market rates.

	At March 31, 2017			At September 30, 2016
	(Dollars in thousands)
Nonaccrual loans:
Real estate loans:
Single family	$	381		$	338
Multi family	—			—
Commercial real estate - non-owner occupied	—			—
Commercial real estate - owner occupied	—			—
Construction and land	—			—
Total real estate	381			338
Commercial business loans	—			—
Consumer loans:
Home equity lines of credit	35			36
Education	99			188
Other consumer loans	—			—
Total consumer loans	134			224
Total nonaccrual loans (1)	515			562
Loans greater than 90 days delinquent and still accruing:
Total delinquent loans accruing	—			—
Total non-performing loans	515			562
Foreclosed assets:
Single family	—			99
Multi-family	—			—
Commercial real estate - non-owner occupied	—			—
Commercial real estate - owner occupied	—			—
Construction and land	—			—
Home equity lines of credit	—			—
Total foreclosed assets	—			99
Total nonperforming assets	$	515		$	661
Performing troubled debt restructurings	$	2,691		$	3,021
Ratios:
Nonperforming loans to total loans	0.09		%	0.10		%
Nonperforming assets to total assets	0.07		%	0.09		%
Nonperforming assets and troubled debt restructurings to total assets	0.42		%	0.52		%

_______________________

⁽¹⁾  There were no troubled debt restructurings that were on non-accrual status at March 31, 2017 or September 30, 2016.

42

The increase in Substandard loans resulted primarily from the downgrade of two commercial loan relationships during the period due to evidence of deterioration of the borrower's financial condition and performance. These loans are performing in accordance with their terms and are not considered to be impaired at March 31, 2017.

The decrease in delinquent loans and non-performing assets at March 31, 2017, from their balances at September 30, 2016, was primarily due to the sale of a foreclosed single family home.

Interest income that would have been recorded for the three and six months ended March 31, 2017, had non-accruing loans been current according to their original terms, amounted to approximately $8,000 and $15,000, respectively.  There was $0 and $2,000 in interest related to these loans included in interest income for the three and six months ended March 31, 2017, respectively.

Other Loans of Concern.   There were no other loans at March 31, 2017 that are not already disclosed where there is information about possible credit problems of borrowers available to our management that would cause management to have serious doubts about the ability of the borrowers to comply with present loan repayment terms and that are reasonably likely to result in disclosure of such loans in the future.

Comparison of Operating Results for the Three Months Ended March 31, 2017 and March 31, 2016

General.  Net income for the three months ended March 31, 2017 was $746,000 compared to $873,000 for the three months ended March 31, 2016. The decrease in net income of $127,000 was due primarily to an increase in noninterest expenses of $436,000 and a decrease in noninterest income of $58,000, which were offset by increases in net interest margin of $234,000 and by decreases in income tax expense of $108,000 and the provision for loan losses of $25,000.

Interest and Dividend Income. Interest and dividend income increased $388,000, or 6.8%, to $6.1 million for the three months ended March 31, 2017 from $5.7 million for the three months ended March 31, 2016. This increase was attributable to an increase of $299,000 in interest income on loans receivable and $89,000 in interest and dividend income on investment securities and interest bearing deposits.

The average balance of interest-earning assets increased $62.9 million, or 10.5%, to $659.9 million for the three months ended March 31, 2017 from $597.0 million for the three months ended March 31, 2016. The yield on average interest-earning assets decreased by 9 basis points to 3.74% for the three months ended March 31, 2017 from 3.83% for the three months ended March 31, 2016.

The average balance of loans increased $39.8 million to $544.6 million for the three months ended March 31, 2017 from $504.8 million for the three months ended March 31, 2016. The average yield on loans decreased by 8 basis points to 4.01% for the three months ended March 31, 2017 from 4.09% for the three months ended March 31, 2016.  This decrease in our average yield on loans reflected the growth in our loan portfolio at current market rates and the effects of downward pressure on loan pricing caused by the prolonged low interest rate environment.

The average balance of investment securities increased by $23.5 million, or 27.7%, to $108.2 million for the three months ended March 31, 2017 from $84.7 million for the three months ended March 31, 2016, while the average yield on investment securities decreased 3 basis points to 2.40% for the three months ended March 31, 2017 compared to 2.43% for the three months ended March 31, 2016. 

Interest Expense. Total interest expense increased $154,000, or 24.0%, to $795,000 for the three months ended March 31, 2017 from $641,000 for the three months ended March 31, 2016.  Interest expense on deposit accounts increased $156,000 to $735,000 for the three months ended March 31, 2017 from $579,000 for the three months ended March 31, 2016.

The average balance of deposits and interest-bearing liabilities increased $54.2 million, or 9.2%, to $643.5 million for the three months ended March 31, 2017 from $589.3 million for the three months ended March 31, 2016. The average cost of deposits and interest-bearing liabilities increased 5 basis points to 0.49% for the three months ended March 31, 2017 from 0.44% for the three months ended March 31, 2016.

The average balance of interest bearing deposits increased $61.2 million to $505.7 million for the three months ended March 31, 2017 from $444.5 million for the three months ended March 31, 2016, and the average cost of interest bearing deposits increased 6 basis points to 0.58% from 0.52% between these same periods. This increase in the cost of interest bearing deposits was caused by a change in the composition of our interest bearing deposits, with the average balance of higher cost

43

certificates of deposit increasing by $38.1 million and the average balance of lower cost checking, savings and money market accounts increasing by $23.1 million. Additionally, the average balance of non-interest bearing demand deposits increased by $5.0 million which helped hold the increase in our overall cost of deposits to only 6 basis points.

Interest expense on FHLB advances decreased $2,000 to $60,000 for the three months ended March 31, 2017 from $62,000 for the three months ended March 31, 2016. The decrease was due to an increase in the average cost of FHLB advances of 28 basis points to 0.95% for the three months ended March 31, 2017 from 0.67% for the three months ended March 31, 2016 offset by a decrease in the average balance of FHLB advances of $12.0 million for the three months ended March 31, 2017. This increase in the average cost resulted from an increase in average long-term FHLB advances to $20.0 million for the three months ended March 31, 2017 from $15.5 million for the three months ended March 31, 2016.

Net Interest Income. Net interest income increased $234,000, or 4.6%, to $5.3 million for the three months ended March 31, 2017 from $5.1 million for the three months ended March 31, 2016.  Our net interest margin decreased by 14 basis points to 3.26% for the three months ended March 31, 2017 from 3.40% for the three months ended March 31, 2016.  Our net interest margin was impacted negatively by a decrease in the yield on our loan portfolio as a result of the growth in our loan portfolio at current market rates and the effects of downward pressure on loan pricing caused by the prolonged low interest rate environment. Our net interest margin was also impacted by an increase in the cost of deposits and interest-bearing liabilities between these periods.

Provision for Loan Losses.  We recorded a provision for loan losses of $100,000 for the three months ended March 31, 2017 compared to $125,000 for the three months ended March 31, 2016.  The decrease in the provision resulted from lower growth in the loan portfolio compared to the prior year period. The allowance for loan losses was $5.6 million, or 1.00% of total loans, at March 31, 2017, compared to $5.2 million, or 0.97% of total loans, at September 30, 2016, and $4.9 million, or 0.95% of total loans, at March 31, 2016. 

Total nonperforming loans were $515,000, or 0.09% of total loans, at March 31, 2017, compared to $562,000, or 0.10% of total loans, at September 30, 2016. As a percentage of nonperforming loans, the allowance for loan losses was 1079.6% at March 31, 2017, compared to 933.1% at September 30, 2016. 

Total classified loans were $6.4 million at March 31, 2017, compared to $1.9 million at September 30, 2016, and $2.1 million at March 31, 2016.

The allowance for loan losses reflects the balance we believe to be appropriate to cover incurred probable losses which were inherent in the loan portfolio at March 31, 2017 and September 30, 2016.

Non-Interest Income.  Non-interest income decreased $58,000, or 3.9%, to $1.4 million for the three months ended March 31, 2017 from $1.5 million for the three months ended March 31, 2016. This decrease was primarily related to a decrease in gains on sales of loans of $68,000 offset by an increase in servicing fee income of $55,000. 

The decrease in gains on sales of loans resulted from a decrease in the volume of fixed rate mortgage loans sold on the secondary market during the quarter ended March 31, 2017. The volume decreased as a result of an increase in long term mortgage rates in response to the actions of the Federal Reserve Board to increase the Fed Funds rate in December 2016 and March 2017. The increase in servicing fee income resulted primarily from the recovery of a portion of the valuation reserve on originated mortgage servicing rights as a result of the increase in market interest rates during the quarter ended March 31, 2017.

Non-Interest Expense.  Non-interest expense increased $436,000, or 8.7%, to $5.4 million for the three months ended March 31, 2017, from $5.0 million for the three months ended March 31, 2016. This increase was primarily caused by increases in compensation and employee benefits of $264,000 and occupancy, furniture and equipment expense of $180,000. These increases were partially offset by a decrease in other expenses of $155,000 between the periods.

The increase in compensation and employee benefits resulted from an increase in the accrual for ESOP expense as we made an additional principal payment on our ESOP loan at the end of the ESOP plan year on December 31, 2016 and we intend to make a similar additional principal payment again at the end of calendar year 2017. The opening of our Madison loan production office in May 2016 and improvements to our information technology and compliance capabilities also resulted in increases to compensation and employee benefits expense and occupancy, furniture and equipment expense between the periods. The decrease in other expense resulted from the reduction in real estate held for investment between the periods.

Provision for Income Taxes.  Income tax expense was $457,000 for the three months ended March 31, 2017, compared to $565,000 for the three months ended March 31, 2016.  The effective tax rate as a percent of pre-tax income was

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38.0% and 39.3% for the three months ended March 31, 2017 and 2016, respectively. The decrease in the effective tax rate was the result of an increase in the average balance of tax-exempt securities to $29.9 million for the three months ended March 31, 2017 compared to $4.1 million for the three months ended March 31, 2016.

Comparison of Operating Results for the Six Months Ended March 31, 2017 and March 31, 2016

General.  Net income for the six months ended March 31, 2017 was $1.5 million compared to $1.9 million for the six months ended March 31, 2016. The decrease in net income of $419,000 was due primarily to increases in noninterest expenses of $1.1 million and our provision for loan losses of $25,000 and a decrease in noninterest income of $61,000, which were offset by an increase in net interest margin of $436,000 and a decrease in income tax expense of $335,000.

Interest and Dividend Income. Interest and dividend income increased $717,000, or 6.3%, to $12.0 million for the six months ended March 31, 2017 from $11.3 million for the six months ended March 31, 2016. This increase was attributable to an increase of $578,000 in interest income on loans receivable and $139,000 in interest and dividend income on investment securities and interest bearing deposits.

The average balance of interest-earning assets increased $57.3 million, or 9.7%, to $649.6 million for the six months ended March 31, 2017 from $592.3 million for the six months ended March 31, 2016. The yield on average interest-earning assets decreased by 9 basis points to 3.74% for the six months ended March 31, 2017 from 3.83% for the six months ended March 31, 2016.

The average balance of loans increased $37.4 million to $537.6 million for the six months ended March 31, 2017 from $500.2 million for the six months ended March 31, 2016. The average yield on loans decreased by 7 basis points to 4.04% for the six months ended March 31, 2017 from 4.11% for the six months ended March 31, 2016.  This decrease in our average yield on loans reflected the growth in our loan portfolio at current market rates and the effects of downward pressure on loan pricing caused by the prolonged low interest rate environment.

The average balance of investment securities increased by $20.1 million, or 23.8%, to $104.7 million for the six months ended March 31, 2017 from $84.5 million for the six months ended March 31, 2016, while the average yield on investment securities decreased 2 basis points to 2.30% for the six months ended March 31, 2017 compared to 2.32% for the six months ended March 31, 2016. 

Interest Expense. Total interest expense increased $281,000, or 22.8%, to $1.5 million for the six months ended March 31, 2017 from $1.2 million for the six months ended March 31, 2016.  Interest expense on deposit accounts increased $265,000 to $1.4 million for the six months ended March 31, 2017 from $1.1 million for the six months ended March 31, 2016.

The average balance of deposits and interest-bearing liabilities increased $49.8 million, or 8.6%, to $632.4 million for the six months ended March 31, 2017 from $582.5 million for the six months ended March 31, 2016. The average cost of deposits and interest-bearing liabilities increased 6 basis points to 0.48% for the six months ended March 31, 2017 from 0.42% for the six months ended March 31, 2016.

The average balance of interest bearing deposits increased $52.5 million to $494.5 million for the six months ended March 31, 2017 from $442.0 million for the six months ended March 31, 2016, and the average cost of interest bearing deposits increased 6 basis points to 0.57% from 0.51% between these same periods. This increase in the cost of interest bearing deposits was caused by a change in the composition of our interest bearing deposits, with the average balance of higher cost certificates of deposit increasing by $32.3 million and the average balance of lower cost checking, savings and money market accounts increasing by $20.1 million. Additionally, the average balance of non-interest bearing demand deposits increased by $7.0 million which helped hold the increase in our overall cost of deposits to only 5 basis points.

Interest expense on FHLB advances increased $16,000 to $110,000 for the six months ended March 31, 2017 from $94,000 for the six months ended March 31, 2016. The increase was due to an increase in the average cost of FHLB advances of 39 basis points to 0.97% for the six months ended March 31, 2017 from 0.58% for the six months ended March 31, 2016. The increase in the average cost was partially offset by a decrease in the average balance of FHLB advances of $9.7 million for the six months ended March 31, 2017. This increase in the average cost resulted from an increase in average long-term FHLB advances to $20.0 million for the six months ended March 31, 2017 from $11.2 million for the six months ended March 31, 2016.

Net Interest Income. Net interest income increased $436,000, or 4.3%, to $10.5 million for the six months ended March 31, 2017 from $10.1 million for the six months ended March 31, 2016.  Our net interest margin decreased by 13 basis

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points to 3.28% for the six months ended March 31, 2017 from 3.41% for the six months ended March 31, 2016.  Our net interest margin was impacted negatively by a decrease in the yield on our loan portfolio as a result of the growth in our loan portfolio at current market rates and the effects of downward pressure on loan pricing caused by the prolonged low interest rate environment. Our net interest margin was also impacted by an increase in the cost of deposits and interest-bearing liabilities between these periods.

Provision for Loan Losses.  We recorded a provision for loan losses of $300,000 for the six months ended March 31, 2017 compared to $275,000 for the six months ended March 31, 2016.  For additional information regarding our allowance for loan losses and certain related ratios at March 31, 2017, September 30, 2016 and March 31, 2016, see "--Comparison of Operating Results for the Three Months Ended March 31, 2017 and March 31, 2016--Provision for Loan Losses" above.

The allowance for loan losses reflects the balance we believe to be appropriate to cover incurred probable losses which were inherent in the loan portfolio at March 31, 2017 and September 30, 2016.

Non-Interest Income.  Non-interest income decreased $61,000, or 1.92%, to $3.1 million for the six months ended March 31, 2017 from $3.2 million for the six months ended March 31,2016. The decrease was primarily related to decreases in each of service fees on deposit accounts of $104,000 and other income of $71,000, offset by an increase in servicing fee income of $143,000. 

The decrease in service fees on deposit accounts resulted from lower interchange rates received on debit card transactions and slightly reduced overdraft activity on our checking accounts. The decrease in other income occurred because the 2016 period included a large prepayment penalty received on a commercial real estate loan. The increase in servicing fee income resulted primarily from the recovery of a portion of the valuation reserve on originated mortgage servicing rights as a result of the increase in market interest rates during the quarter.

Non-Interest Expense.  Non-interest expense increased $1.1 million, or 11.2%, to $11.0 million for the six months ended March 31, 2017, from $9.9 million for the six months ended March 31, 2016. This increase was primarily caused by increases in compensation and employee benefits of $842,000 and occupancy, furniture and equipment expense of $297,000. These increases were partially offset by a decrease in other expenses of $264,000 between the periods.

The increase in compensation and employee benefits resulted from an increase in the accrual for ESOP expense as we made an additional principal payment on our ESOP loan at the end of the ESOP plan year on December 31, 2016. We intend to make a similar additional principal payment again at the end of calendar year 2017. The opening of our Madison loan production office in May 2016 also resulted in increases to both compensation and employee benefits expense and occupancy, furniture and equipment expense between the periods. The decrease in other expense resulted from the reduction in real estate held for investment between the periods.

Provision for Income Taxes.  Income tax expense was $866,000 for the six months ended March 31, 2017, compared to $1.2 million for the six months ended March 31, 2016.  The effective tax rate as a percent of pre-tax income was 36.7% and 38.6% for the six months ended March 31, 2017 and 2016, respectively. The decrease in the effective tax rate was the result of an increase in the average balance of tax-exempt securities to $29.2 million for the six months ended March 31, 2017 compared to $4.4 million for the six months ended March 31, 2016.

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Analysis of Net Interest Income

Net interest income represents the difference between the income we earn on interest-earning assets and the interest expense we pay on interest-bearing liabilities. Net interest income also depends upon the relative amounts of interest-earning assets and interest-bearing liabilities and the interest rates earned or paid on them.  The following tables set forth average balance sheets, average yields and costs, and certain other information for the periods indicated.  Average balances are derived from daily average balances for all periods presented in the table.  Non-accrual loans were included in the computation of average balances, but have been reflected in the tables as loans carrying a zero yield. Tax equivalent yield adjustments have been made as detailed in note (1) below.  The yields set forth below include the effect of loan fees, discounts and premiums that are amortized or accreted to interest income.

	For the Three Months Ended March 31,
	2017						2016
	Average Outstanding Balance		Interest		Yield/Cost		Average Outstanding Balance		Interest		Yield/Cost
Assets:
Loans	$	544,580	$	5,465	4.01	%	$	504,800	$	5,166	4.09	%
Taxable securities	78,302		431		2.20		80,654		479		2.38
Securities exempt from federal income taxes(1)	29,858		217		2.91		4,052		35		3.46
Fed funds sold and other interest-earning deposits	7,132		54		3.03		7,502		37		1.97
Total interest-earning assets	659,872		6,167		3.74	%	597,008		5,717		3.83	%
Noninterest-earning assets	62,670						74,638
Total assets	$	722,542					$	671,646
Liabilities and stockholders' equity:
Non interest-bearing demand deposits	$	112,600	$	—	—	%	$	107,568	$	—	—	%
Checking accounts	134,459		108		0.32		140,689		96		0.27
Passbook and statement savings	134,391		47		0.14		127,599		44		0.14
Variable rate money market	69,432		56		0.32		46,932		50		0.43
Certificates of deposit	167,400		524		1.25		129,256		389		1.20
Total interest bearing deposits	505,682		735		0.58		444,476		579		0.52
Total deposits	618,282		735		0.48		552,044		579		0.42
Short-term FHLB advances	5,183		9		0.69		21,758		15		0.28
Long-term FHLB advances	20,000		51		1.02		15,495		47		1.21
Line of credit	40		—		3.19		—		—		—
Total Borrowings	25,223		60		0.95		37,253		62		0.67
Total deposits and interest-bearing liabilities	643,505		795		0.49	%	589,297		641		0.44	%
Other liabilities	4,749						5,231
Total liabilities	648,254						594,528
Stockholders' equity	74,288						77,118
Total liabilities and stockholders' equity	$	722,542					$	671,646
Net interest income			$	5,372					$	5,076
Net interest rate spread					3.24	%					3.40	%
Net interest-earning assets	$	16,367					$	7,711
Net interest margin					3.26	%					3.40	%
Average of interest-earning assets to interest-bearing liabilities					102.54	%					101.31	%

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	For the Six Months Ended March 31,
	2017						2016
	Average Outstanding Balance		Interest		Yield/Cost		Average Outstanding Balance		Interest		Yield/Cost
Assets:
Loans	$	537,623	$	10,861	4.04	%	$	500,246	$	10,283	4.11	%
Taxable securities	75,462		795		2.11		80,179		902		2.25
Securities exempt from federal income taxes(1)	29,189		411		2.82		4,357		79		3.63
Fed funds sold and other interest-earning deposits	7,294		90		2.47		7,471		63		1.69
Total interest-earning assets	649,568		12,157		3.74	%	592,253		11,327		3.83	%
Noninterest-earning assets	65,731						75,270
Total assets	$	715,299					$	667,523
Liabilities and stockholders' equity:
Non interest-bearing demand deposits	$	115,153	$	—	—	%	$	108,147	$	—	—	%
Checking accounts	140,649		232		0.33		140,409		195		0.28
Passbook and statement savings	134,260		93		0.14		127,950		89		0.14
Variable rate money market	60,824		93		0.31		47,228		100		0.42
Certificates of deposit	158,771		984		1.24		126,437		753		1.19
Total interest bearing deposits	494,504		1,402		0.57		442,024		1,137		0.51
Total deposits	609,657		1,402		0.46		550,171		1,137		0.41
Short-term FHLB advances	2,684		9		0.67		21,169		23		0.22
Long-term FHLB advances	20,000		101		1.01		11,202		71		1.27
Line of credit	20		—		3.19		—		—		—
Total Borrowings	22,704		110		0.97		32,371		94		0.58
Total deposits and interest-bearing liabilities	632,361		1,512		0.48	%	582,542		1,231		0.42	%
Other liabilities	7,664						7,180
Total liabilities	640,025						589,722
Stockholders' equity	75,274						77,801
Total liabilities and stockholders' equity	$	715,299					$	667,523
Net interest income			$	10,645					$	10,096
Net interest rate spread					3.26	%					3.40	%
Net interest-earning assets	$	17,207					$	9,711
Net interest margin					3.28	%					3.41	%
Average of interest-earning assets to interest-bearing liabilities					102.72	%					101.67	%

(1) Non-taxable investment income is presented on a fully tax equivalent basis assuming a 34% federal tax rate.

Liquidity and Capital Resources

Our primary sources of funds are deposits, principal and interest payments on loans and securities, proceeds from the sale of loans, proceeds from maturities and calls of securities and Federal Home Loan Bank advances. While maturities and scheduled amortization of loans and securities are predictable sources of funds, deposit flows and mortgage prepayments are greatly influenced by general interest rates, economic conditions, and competition. Our most liquid assets are cash and short-term investments including interest-earning demand deposits. The levels of these assets are dependent on our operating, financing, lending, and investing activities during any given period.

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Our cash flows are comprised of three primary classifications: cash flows from operating activities, investing activities, and financing activities.  Net cash provided by (used in) operating activities was $5.5 million and $(1.0) million for the six months ended March 31, 2017 and March 31, 2016, respectively.  Net cash used in investing activities, which consists primarily of disbursements for loan originations and the purchase of securities, offset by principal collections on loans, proceeds from the sale of securities, proceeds from maturing securities and pay downs on mortgage-backed securities, was $43.1 million and $17.2 million for the six months ended March 31, 2017 and March 31, 2016, respectively.  During the six months ended March 31, 2017, we purchased $30.4 million and sold $829,000 in securities held as available-for-sale, and during the six months ended March 31, 2016, we purchased $16.3 million and sold $8.7 million in securities held as available-for-sale.  Net cash provided by financing activities was $52.0 million and $18.0 million for the six months ended March 31, 2017 and March 31, 2016, respectively, and consisted principally of increases in deposit accounts and net FHLB borrowings offset by the purchase of Company stock.

At March 31, 2017, Westbury Bank exceeded all of its regulatory capital requirements with Tier 1 leverage capital of $72.7 million, or 10.03% of adjusted total assets, which is above the well-capitalized level of $36.2 million, or 5.00%; Common Equity Tier 1 capital of $72.7 million, or 11.95% of risk-weighted assets, which is above the well-capitalized level of $39.5 million, or 6.50%; Tier 1 capital of $72.7 million, or 11.95% of risk-weighted assets, which is above the well-capitalized level of $48.6 million, or 8.00%; and total risk-based capital of $78.2 million, or 12.87% of risk-weighted assets, which is above the well-capitalized level of $60.8 million, or 10.00%.  Accordingly, Westbury Bank was categorized as well-capitalized at March 31, 2017 under all Prompt Corrective Action Provisions as determined by the OCC, our primary regulator. 

At March 31, 2017, we had outstanding commitments to originate loans of $6.9 million, unused commercial lines of credit of $100.4 million, unused home equity lines of credit of $28.1 million, and stand-by letters of credit of $1.6 million.  We anticipate that we will have sufficient funds available to meet our current loan origination commitments.  Certificates of deposit that are scheduled to mature in less than one year from March 31, 2017 totaled $85.5 million.  Management expects that a substantial portion of the maturing certificates of deposit will be renewed.  However, if a substantial portion of these deposits is not retained, we may utilize FHLB advances or raise interest rates on deposits to attract new accounts, which may result in higher levels of interest expense.

Off-Balance Sheet Arrangements.  In the normal course of operations, we engage in a variety of financial transactions that, in accordance with GAAP, are not recorded in our financial statements.  These transactions involve, to varying degrees, elements of credit, interest rate and liquidity risk.  Such transactions are used primarily to manage customers’ requests for funding and generally take the form of loan commitments, lines of credit and standby letters of credit. These arrangements are not likely to have a material impact on the Company's financial condition or results of operations. We have not engaged in any other off-balance-sheet transactions in the normal course of our lending activities.

Impact of Inflation and Changing Prices

The financial statements and related data presented herein have been prepared in accordance with GAAP which require the measurement of financial position and operating results in terms of historical dollars without considering changes in the relative purchasing power of money over time due to inflation.  The primary impact of inflation on our operations is reflected in increased operating costs. Unlike most industrial companies, virtually all of the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates, generally, have a more significant impact on a financial institution’s performance than does inflation. Interest rates do not necessarily move in the same direction or to the same extent as the prices of goods and services.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Disclosures of quantitative and qualitative market risk are not required by smaller reporting companies, such as the Company.

ITEM 4. CONTROLS AND PROCEDURES

We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) that are designed to ensure that information required to be disclosed in the reports that we file or submit under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and that the information required to be disclosed in reports that we file or submit under the Securities Exchange Act of 1934 is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

In designing and evaluating the disclosure controls and procedures, we recognize that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply judgment in evaluating the cost-benefit relationship of possible controls and procedures. We have designed our disclosure controls and procedures to reach a level of reasonable assurance of achieving the

desired control objectives.

An evaluation was performed under the supervision and with the participation of the Company’s management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures as of March 31, 2017. Based on that evaluation, the Company’s management, including the Chief Executive Officer and the Chief Financial Officer, concluded that the Company’s disclosure controls and procedures were effective as of March 31, 2017 at reaching a level of reasonable assurance.

During the quarter ended March 31, 2017, there have been no changes in the Company’s internal controls over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities and Exchange Act of 1934, as amended) that have materially affected, or are reasonably likely to materially affect, the Company’s internal controls over financial reporting.

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PART II

ITEM 1. LEGAL PROCEEDINGS

We are not involved in any pending legal proceedings as a plaintiff or defendant other than routine legal proceedings occurring in the ordinary course of business, and at March 31, 2017, we were not involved in any legal proceedings, the outcome of which, in our reasonable opinion, would be material to our financial condition or results of operations.

ITEM 1A. RISK FACTORS

Disclosures of risk factors are not required by smaller reporting companies, such as the Company.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) Unregistered Sales of Equity Securities.  None.

(b) Use of Proceeds.  None.

(c) Repurchase of Equity Securities. 

On February 9, 2016, the Company announced that its Board of Directors had authorized the repurchase of up to 422,906 shares of the Company's common stock, representing 10.00% of the Company's then outstanding shares. The shares may be purchased under the current repurchase program in the open market or in privately negotiated transactions from time to time depending on market conditions and other factors. As of March 31, 2017, 197,438 shares had been purchased under the current plan.

The table below sets forth Westbury Bancorp Inc.'s common stock repurchases during the three months ended March 31, 2017.

Period	(a) Total number of shares purchased(1)	(b) Average price paid per share		(c) Total number of shares purchased as part of publicly announced plans or programs	(d) Maximum number of shares that may yet be purchased under the plans or programs
January 1 - January 31, 2017	26,250	$	21.95	26,250	235,684
February 1 - February 28, 2017	2,966	21.93		2,966	232,718
March 1 - March 31, 2017	7,250	20.61		7,250	225,468
Total	36,466	$	—	36,466

______________________________________________________________________

(1) All shares were repurchased pursuant to the February 9, 2016 authorization.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

51

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

The exhibits required by Item 601 of Regulation S-K are included with this Form 10-Q and are listed on the “Index to Exhibits” immediately following the Signatures.

52

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Westbury Bancorp, Inc.

Date: April 28, 2017

/s/ Greg J. Remus

Greg J. Remus

President and Chief Executive Officer

/s/ Kirk J. Emerich

Kirk J. Emerich

Executive Vice President and Chief Financial Officer

53

INDEX TO EXHIBITS

Exhibit Number	Description
31.1	Certification of Greg J. Remus, President and Chief Executive Officer, Pursuant to Rule 13a-14(a) and Rule 15d-14(a)
31.2	Certification of Kirk J. Emerich, Executive Vice President and Chief Financial Officer, Pursuant to Rule 13a-14(a) and Rule 15d-14(a)
32	Certification of Greg J. Remus, President and Chief Executive Officer, and Kirk J. Emerich, Executive Vice President and Chief Financial Officer, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.*
101	The following materials from the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2017, formatted in XBRL (Extensible Business Reporting Language): (i) Consolidated Balance Sheets; (ii) Consolidated Statements of Operations; (iii) Consolidated Statements of Comprehensive Income (Loss); (iv) Consolidated Statements of Changes in Stockholders' Equity; (v) Consolidated Statements of Cash Flows; and (vi) Notes to Unaudited Consolidated Financial Statements

_

* - This certification is not "filed" for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, or incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities and Exchange Act of 1934, as amended.

______________________________________

54

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Greg J. Remus, certify that:

1) I have reviewed this quarterly report on Form 10-Q of Westbury Bancorp, Inc.;

2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 28, 2017

/s/ Greg J. Remus

Greg J. Remus

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Kirk J. Emerich, certify that:

1) I have reviewed this quarterly report on Form 10-Q of Westbury Bancorp, Inc.;

2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 28, 2017

/s/ Kirk J. Emerich

Kirk J. Emerich

Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Westbury Bancorp, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2017 as filed with the Securities and Exchange Commission (the “Report”), the undersigned, Greg J. Remus, Chief Executive Officer of the Company, and Kirk J. Emerich, Executive Vice President and Chief Financial Officer of the Company, each certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to best of his knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Greg J. Remus
	Date: April 28, 2017
Greg J. Remus
President and Chief Executive Officer
/s/ Kirk J. Emerich
	Date: April 28, 2017
Kirk J. Emerich
Executive Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Westbury Bancorp, Inc. and will be retained by Westbury Bancorp, Inc. and furnished to the Securities and Exchange Commission or its staff upon request. This certification is made solely for purposes of 18 U.S.C. Section 1350, subject to the knowledge standard contained therein, and not for any other purpose.

XML

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2017	Apr. 28, 2017
Document and Entity Information
Entity Registrant Name	Westbury Bancorp, Inc.
Entity Central Index Key	0001553326
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		4,037,826
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2

XML

Consolidated Balance Sheets - USD ($)	Mar. 31, 2017	Sep. 30, 2016
Assets
Cash and due from banks	$ 25,705,000	$ 19,125,000
Interest-earning deposits	18,381,000	10,488,000
Cash and cash equivalents	44,086,000	29,613,000
Securities available-for-sale	115,208,000	93,772,000
Securities held to maturity, at amortized cost ($2,316 and $2,392 fair value at December 31, 2016 and September 30, 2016, respectively)	2,293,000	2,293,000
Loans held for sale, at lower of cost or fair value	277,000	1,881,000
Loans, net of allowance for loan losses of $5,451 and $5,244 at December 31, 2016 and September 30, 2016, respectively	551,611,000	533,759,000
Federal Home Loan Bank stock, at cost	1,301,000	1,330,000
Foreclosed real estate	0	99,000
Office properties and equipment, net	15,573,000	15,410,000
Cash surrender value of bank-owned life insurance	14,455,000	14,233,000
Mortgage servicing rights	834,000	800,000
Deferred tax asset	5,564,000	5,425,000
Other assets	4,339,000	4,010,000
Total assets	755,541,000	702,625,000
Liabilities
Deposits	645,313,000	591,977,000
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	20,000,000	20,000,000
Advance payments by borrowers for property taxes and insurance	1,818,000	5,455,000
Other liabilities	9,330,000	5,564,000
Total liabilities	676,461,000	622,996,000
Stockholders’ Equity
Preferred stock $0.01 par value, 50,000,000 shares authorized; none issued or outstanding	0	0
Common stock $0.01 par value, 100,000,000 shares authorized; 5,350,863 and 5,347,641 shares issued at December 31, 2016 and September 30, 2016, respectively	54,000	54,000
Additional paid-in capital	52,182,000	51,463,000
Retained earnings	53,678,000	52,185,000
Unearned Employee Stock Ownership Plan (ESOP) shares	(2,983,000)	(3,188,000)
Accumulated other comprehensive gain (loss)	(996,000)	561,000
Less common stock repurchased, 1,278,323 and 1,249,123 shares at cost, at December 31, 2016 and September 30, 2016, respectively	(22,855,000)	(21,446,000)
Total stockholders’ equity	79,080,000	79,629,000
Total liabilities and stockholders’ equity	$ 755,541,000	$ 702,625,000

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 2,324	$ 2,392
Allowance for loan losses	$ 5,560	$ 5,244
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	5,354,315	5,347,641
Treasury stock, shares	1,314,789	1,249,123

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Interest and dividend income:
Loans	$ 5,465	$ 5,166	$ 10,861	$ 10,283
Investments - nontaxable	143	23	271	52
Investments - taxable	431	479	795	902
Interest bearing deposits	54	37	90	63
Total interest and dividend income	6,093	5,705	12,017	11,300
Interest expense:
Deposits	735	579	1,402	1,137
Short-term advances from the Federal Home Loan Bank	9	15	9	23
Long-term advances from the Federal Home Loan Bank	51	47	101	71
Total interest expense	795	641	1,512	1,231
Net interest income before provision for loan losses	5,298	5,064	10,505	10,069
Provision for loan losses	100	125	300	275
Net interest income after provision for loan losses	5,198	4,939	10,205	9,794
Noninterest income:
Service fees on deposit accounts	932	947	1,921	2,025
Gain on sales of loans, net	67	135	282	262
Servicing fee income, net of amortization and impairment	72	17	197	54
Insurance and securities sales commissions	59	59	102	132
Gain on sales of securities	0	9	4	11
Gain on sales of other assets	0	1	0	1
Increase in cash surrender value of bank-owned life insurance	108	110	222	220
Rental income from real estate operations	110	113	213	226
Other income	94	109	169	240
Total noninterest income	1,442	1,500	3,110	3,171
Noninterest expenses:
Compensation and employee benefits	2,806	2,542	5,748	4,906
Occupancy, furniture and equipment	623	443	1,159	862
Data processing	856	772	1,662	1,519
Professional Fees	325	260	618	528
FDIC insurance premiums	101	103	203	207
Other expenses	726	881	1,566	1,830
Total noninterest expenses	5,437	5,001	10,956	9,852
Income before income tax expense	1,203	1,438	2,359	3,113
Income tax expense	457	565	866	1,201
Net income	$ 746	$ 873	$ 1,493	$ 1,912
Earnings per share:
Basic (in dollars per share)	$ 0.21	$ 0.23	$ 0.41	$ 0.51
Diluted (in dollars per share)	$ 0.20	$ 0.23	$ 0.40	$ 0.50

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 746	$ 873	$ 1,493	$ 1,912
Other comprehensive income, before tax:
Unrealized loss on available-for-sale securities	484	1,574	(2,558)	605
Reclassification adjustment for realized gains included in net income	0	(9)	(4)	(11)
Other comprehensive loss, before tax	484	1,565	(2,562)	594
Income tax benefit related to items of other comprehensive loss	(190)	(613)	1,005	(232)
Other comprehensive loss, net of tax	294	952	(1,557)	362
Comprehensive income (loss)	$ 1,040	$ 1,825	$ (64)	$ 2,274

XML

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid In Capital	Retained Earnings	Unearned ESOP Shares	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance at Sep. 30, 2015	$ 78,812	$ 0	$ 53	$ 50,145	$ 48,714	$ (3,548)	$ 352	$ (16,904)
Increase (Decrease) in Stockholders' Equity
Net income	1,912	0			1,912
Other comprehensive income (loss), net of tax	362						362
Exercise of 4,457 stock options	64		0	64
Repurchase of 65,666 and 170,632 shares, respectively, of common stock	(3,242)							(3,242)
Stock based compensation expense	417			417
Allocation,or commitment to be allocated, of 5,142 shares by ESOP	283			129		154
Balance at Mar. 31, 2016	78,608	0	53	50,755	50,626	(3,394)	714	(20,146)
Balance at Sep. 30, 2016	79,629	0	54	51,463	52,185	(3,188)	561	(21,446)
Increase (Decrease) in Stockholders' Equity
Net income	1,493	0			1,493
Other comprehensive income (loss), net of tax	(1,557)						(1,557)
Exercise of 4,457 stock options	92		0	92
Repurchase of 65,666 and 170,632 shares, respectively, of common stock	(1,409)							(1,409)
Stock based compensation expense	411			411
Allocation,or commitment to be allocated, of 5,142 shares by ESOP	421	0		216		205
Balance at Mar. 31, 2017	$ 79,080	$ 0	$ 54	$ 52,182	$ 53,678	$ (2,983)	$ (996)	$ (22,855)

XML

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - shares	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]
Number of shares allocated by ESOP	20,570	15,427
Exercised (shares)	5,896	4,298
Number of shares repurchased during period	65,666	170,632

XML

Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows From Operating Activities
Net income	$ 1,493,000	$ 1,912,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	300,000	275,000
Depreciation and amortization	450,000	383,000
Depreciation on real estate held for investment	0	44,000
Net amortization of securities premiums and discounts	409,000	205,000
Amortization and impairment of mortgage servicing rights	(34,000)	146,000
Gain on sales of available-for-sale securities	(4,000)	(11,000)
Gain on sales of other assets	0	1,000
Write-down of real estate held-for-sale	0	47,000
(Gain) loss on sale of foreclosed real estate	3,000	(21,000)
Write-down of foreclosed real estate	9,000	26,000
Loans originated for sale	(15,600,000)	(17,004,000)
Proceeds from sale of loans	17,486,000	17,089,000
Gain on sale of loans, net	(282,000)	(262,000)
ESOP compensation expense	421,000	283,000
Stock based compensation expense	411,000	417,000
Deferred income taxes	866,000	1,202,000
Increase in cash surrender value of life insurance	(222,000)	(220,000)
Net change in:
Other assets	(329,000)	(650,000)
Other liabilities and advance payments by borrowers for property taxes and insurance	129,000	(4,815,000)
Net cash used in operating activities	5,506,000	(955,000)
Cash Flows From Investing Activities
Purchases of securities available-for-sale	(30,378,000)	(16,272,000)
Proceeds from sales of securities available-for-sale	829,000	8,740,000
Proceeds from maturities, prepayments, and calls of securities available-for-sale	5,146,000	6,282,000
Purchases of real estate held for investment	0	(18,000)
Proceeds from sale of real estate held for investmest	0	185,000
Redemption of FHLB stock	29,000	0
Net increase in loans	(18,152,000)	(15,650,000)
Purchase of bank-owned life insurance	0	(637,000)
Purchases of office properties and equipment	(613,000)	(141,000)
Proceeds from sales of real estate held-for-sale	0	27,000
Proceeds from sales of foreclosed real estate	87,000	278,000
Net cash used in investing activities	(43,052,000)	(17,206,000)
Cash Flows From Financing Activities
Net increase in deposits	53,336,000	19,197,000
Proceeds from long-term Federal Home Loan Bank advances	0	20,000,000
Net proceeds of short-term Federal Home Loan Bank advances	0	(18,000,000)
Exercise of 4,457 stock options	92,000	64,000
Repurchase of common stock	(1,409,000)	(3,242,000)
Net cash provided by financing activities	52,019,000	18,019,000
Net increase in cash and cash equivalents	14,473,000	(142,000)
Cash and cash equivalents at end of period	44,086,000	16,346,000
Cash and cash equivalents at beginning of period	29,613,000	16,488,000
Supplemental Disclosures of Cash Flow Information
Interest paid (including amounts credited to deposits)	$ 1,511,000	$ 1,231,000

XML

Basis of Presentation

6 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

 The accompanying unaudited consolidated financial statements of Westbury Bancorp, Inc. and its wholly-owned subsidiary, Westbury Bank, (the "Bank", and collectively, the “Company”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 8-03 of Regulation S-X.  Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Estimates used in the preparation of the financial statements are based on various factors including the current interest rate environment and the general strength of the local economy.  Changes in the overall interest rate environment can significantly affect the Company’s net interest income and the value of its recorded assets and liabilities.  Actual results could differ from those estimates used in the preparation of the financial statements.  Certain prior period amounts have been reclassified to conform to current period presentation.  These reclassifications did not result in any changes to previously reported net income or stockholders’ equity.

In the opinion of management, the accompanying unaudited financial statements contain all adjustments (consisting only of normal recurring accruals) necessary to present fairly the Company’s financial condition as of March 31, 2017 and September 30, 2016 and the results of operations and cash flows for the interim periods ended March 31, 2017 and 2016.  All interim amounts are unaudited, and the results of operations for the interim periods herein are not necessarily indicative of the results of operations to be expected for the year.  These financial statements should be read in conjunction with the Company’s audited financial statements and notes thereto for the year ended September 30, 2016 filed with the U.S. Securities and Exchange Commission as part of Westbury Bancorp, Inc.’s Annual Report on Form 10-K for the year ended September 30, 2016.

The Jumpstart Our Business Startups Act (the "JOBS Act"), which was signed into law on April 5, 2012, made numerous changes to the federal securities laws to facilitate access to capital markets. Under the JOBS Act, a company with total annual gross revenues of less than $1.0 billion during its most recently completed fiscal year qualifies as an “emerging growth company.” The Company qualifies as an “emerging growth company” and believes that it will continue to qualify as an “emerging growth company” until five years from the completion of the Company's initial public stock offering in April 2013.

As an “emerging growth company,” the Company has elected to use the extended transition period to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. Accordingly, the financial statements may not be comparable to the financial statements of companies that comply with such new or revised accounting standards.

XML

Recent Accounting Developments

6 Months Ended

Mar. 31, 2017

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Developments

Recent Accounting Developments

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 is intended to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2018 and interim periods within annual periods beginning after December 15, 2019. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10) - Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01 is intended to enhance the reporting model for financial instruments to provide users of financial statements with more decision-useful information. ASU 2016-01 is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods beginning after December 15, 2019. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. ASU 2016-02 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2018. The Company is evaluating the potential impact of ASU 2016-02 on the consolidated financial statements and related disclosures.

In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718). ASU 2016-09 is intended to simplify the accounting for share-based payment transactions, including income tax consequences, classification of awards as either assets or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2017 and interim periods within annual periods beginning after December 15, 2018. Early adoption is permitted. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). ASU 2016-13 is intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity. ASU 2016-13 replaces the "incurred loss impairment methodology" with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU 2016-13 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2019. The Company is evaluating the potential impact of ASU 2016-13 on the consolidated financial statements and related disclosures.

In March 2017, the FASB issued ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20). ASU 2017-08 is intended to amend the amortization period for certain purchased callable debt securities held at a premium. Under ASU 2017-08, the FASB is shortening the amortization period for the premium to the earliest call date. Under current GAAP, entities generally amortize the premium as an adjustment of yield over the contractual life of the instrument. ASU 2017-08 is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Adoption by the Company is not expected to have a material impact on the consolidated financial statements and related disclosures.

XML

Earnings Per Share

6 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Earnings per common share is computed using the two-class method. Basic earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding, adjusted for weighted average unallocated ESOP shares, during the applicable period, excluding outstanding participating securities. Participating securities include non-vested restricted stock awards to the extent holders of these securities are entitled to receive non-forfeitable dividends or dividend equivalents at the same rate as holders of the Company's common stock. Diluted earnings per share is computed using the weighted-average number of shares determined for the basic earnings per common share computation plus the dilutive effect of stock compensation using the treasury stock method.

The following table presents a reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share (in thousands, except share and per share data).

	Three Months Ended March 31,						Six Months Ended March 31,
	2017			2016			2017			2016
Net income	$	746		$	873		$	1,493		$	1,912
Basic potential common shares:
Weighted average shares outstanding	3,936,596			4,073,133			3,955,400			4,118,040
Weighted average unallocated ESOP shares	(305,130		)	(346,266		)	(310,329		)	(349,713		)
Basic weighted average shares outstanding	3,631,466			3,726,867			3,645,071			3,768,327
Dilutive effect of equity awards	99,009			53,290			90,125			47,662
Diluted weighted average shares outstanding	3,730,475			3,780,157			3,735,196			3,815,989
Basic income per share	$	0.21		$	0.23		$	0.41		$	0.51
Diluted income per share	$	0.20		$	0.23		$	0.40		$	0.50

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Investment Securitites

6 Months Ended

Mar. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

The amortized cost and fair value of investment securities are summarized as follows:

	March 31, 2017
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. Government and agency securities	$	25	$	—	$	—		$	25
U.S. Government agency residential mortgage-backed securities	51,780		132		(809		)	51,103
U.S. Government agency collateralized mortgage obligations	5,708		11		(113		)	5,606
U.S. Government agency commercial mortgage-backed securities	15,452		20		(53		)	15,419
Municipal securities-tax exempt	31,147		30		(837		)	30,340
Municipal securities-taxable	12,735		43		(63		)	12,715
Total Available for Sale	116,847		236		(1,875		)	115,208
Held to Maturity
Municipal securities-tax exempt	2,293		32		(1		)	2,324
Total Investment Securities	$	119,140	$	268	$	(1,876	)	$	117,532
	September 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. Government and agency securities	$	24	$	1	$	—		$	25
U.S. Government agency residential mortgage-backed securities	40,289		504		(43		)	40,750
U.S. Government agency collateralized mortgage obligations	2,674		24		(18		)	2,680
U.S. Government agency commercial mortgage-backed securities	11,376		150		—			11,526
Municipal securities-tax exempt	25,730		51		(99		)	25,682
Municipal securities-taxable	12,756		358		(5		)	13,109
Total Available for Sale	92,849		1,088		(165		)	93,772
Held to Maturity
Municipal securities-tax exempt	2,293		99		—			2,392
Total Investment Securities	$	95,142	$	1,187	$	(165	)	$	96,164

The amortized cost and fair value of investment securities, by contractual maturity, at March 31, 2017 are shown in the following table.  Actual maturities differ from contractual maturities for mortgage-backed securities and collateralized mortgage obligations because the mortgages underlying the securities may be called or repaid without penalty.  Therefore, these securities are not presented in the maturity categories in the table below.

	March 31, 2017
	Amortized Cost		Fair Value
Available for sale:
Due in one year or less	$	920	$	922
Due after one year through five years	13,677		13,654
Due after five years through ten years	23,609		22,952
Due after ten years	5,701		5,552
U.S. Government agency residential mortgage-backed securities	51,780		51,103
U.S. Government agency collateralized mortgage obligations	5,708		5,606
U.S. Government agency commercial mortgage-backed securities	15,452		15,419
	116,847		115,208
Held to maturity:
Due in one year or less	168		168
Due after one year through five years	703		705
Due after five years through ten years	982		999
Due after ten years	440		452
	2,293		2,324
Total	$	119,140	$	117,532

Proceeds from sales of securities available for sale during the three months ended March 31, 2017 and 2016, were zero and $3,521, respectively. Gross realized gains, during the three months ended March 31, 2017 and 2016, on these sales amounted to zero and $11, respectively. Gross realized losses on these sales were zero and $2, during the three months ended March 31, 2017 and 2016, respectively.

Proceeds from sales of securities available for sale during the six months ended March 31, 2017 and 2016, were $829 and $8,740, respectively. Gross realized gains, during the six months ended March 31, 2017 and 2016, on these sales amounted to $4 and $23, respectively. Gross realized losses on these sales were zero and $12, during the six months ended March 31, 2017 and 2016, respectively.

Securities with carrying values of $35,741 and $24,364 at March 31, 2017 and September 30, 2016, respectively, were pledged for purposes required or permitted by law.

Information pertaining to securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized as follows:

	March 31, 2017
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government and agency securities	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agency residential mortgage-backed securities	36,078		(762		)	2,697		(47		)	38,775		(809		)
U.S. Government agency collateralized mortgage obligations	2,497		(79		)	512		(34		)	3,009		(113		)
U.S Government agency commercial mortgage-backed securities	11,603		(53		)	—		—			11,603		(53		)
Municipal securities-tax exempt	24,748		(837		)	—		—			24,748		(837		)
Municipal securities-taxable	6,091		(63		)	—		—			6,091		(63		)
Total Available for Sale	$	81,017	$	(1,794	)	$	3,209	$	(81	)	$	84,226	$	(1,875	)
Held to Maturity
Municipal securities-tax exempt	345		(1		)	—		—			345		(1		)
Total Investment Securities	$	81,362	$	(1,795	)	$	3,209	$	(81	)	$	84,571	$	(1,876	)

	September 30, 2016
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government and agency securities	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agency residential mortgage-backed securities	2,726		(5		)	3,020		(38		)	5,746		(43		)
U.S. Government agency collateralized mortgage obligations	—		—			576		(18		)	576		(18		)
U.S. Government agency commercial mortgage-backed securities	—		—			—		—			—		—
Municipal securities-tax exempt	18,314		(99		)	—		—			18,314		(99		)
Municipal securities-taxable	550		(5		)	—		—			550		(5		)
Total Available for Sale	$	21,590	$	(109	)	$	3,596	$	(56	)	$	25,186	$	(165	)
Held to Maturity
Municipal securities-tax exempt	—		—			—		—			—		—
Total Investment Securities	$	21,590	$	(109	)	$	3,596	$	(56	)	$	25,186	$	(165	)

At March 31, 2017, the investment portfolio included 5 securities available-for-sale, which had been in an unrealized loss position for greater than twelve months, and 135 securities available-for-sale and 2 securities held-to-maturity, which had been in an unrealized loss position for less than twelve months. At September 30, 2016, the investment portfolio included 5 securities available-for-sale, which had been in an unrealized loss position for greater than twelve months, and 58 securities available-for-sale, which had been in an unrealized loss position for less than twelve months.

These securities are considered to be acceptable credit risks. Based upon an evaluation of the available evidence, including recent changes in market rates, credit rating information and information obtained from regulatory filings, management believes the decline in fair value for these securities is temporary. In addition, the Company does not intend to sell these investment securities prior to a period of time sufficient to allow for anticipated recovery. The Company does not have any current requirement to sell its investment in any issuer prior to any anticipated recovery in fair value.

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Loans

6 Months Ended

Mar. 31, 2017

Loans and Leases Receivable Disclosure [Abstract]

Loans

Loans

A summary of the balances of loans as of the dates indicated follows:

	March 31, 2017		September 30, 2016
Real estate:
Single family	$	160,989	$	158,541
Multifamily	117,384		123,623
Commercial real estate non-owner occupied	127,238		117,971
Commercial real estate owner occupied	73,534		63,108
Construction and land development	17,197		16,230
Total real estate	496,342		479,473
Commercial business	43,649		40,836
Consumer:
Home equity lines of credit	13,836		14,969
Education	3,108		3,401
Other	377		462
Total consumer	17,321		18,832
Total loans	557,312		539,141
Less:
Net deferred loan fees	141		138
Allowance for loan losses	5,560		5,244
Net loans	$	551,611	$	533,759

The following tables present the contractual aging of the Company's recorded investment in past due loans by class of loans as of March 31, 2017 and September 30, 2016:

March 31, 2017	Current		30-59 Days Past Due		60-89 Days Past Due		Loans Past Due 90 Days or More		Total
Single family	$	159,825	$	799	$	—	$	365	$	160,989
Multifamily	117,384		—		—		—		117,384
Commercial real estate non-owner occupied	127,238		—		—		—		127,238
Commercial real estate owner occupied	73,534		—		—		—		73,534
Construction and land development	17,197		—		—		—		17,197
Commercial business	43,649		—		—		—		43,649
Consumer and other:
Home equity lines of credit	13,809		—		—		27		13,836
Education	2,961		48		39		60		3,108
Other	377		—		—		—		377
	$	555,974	$	847	$	39	$	452	$	557,312

September 30, 2016	Current		30-59 Days Past Due		60-89 Days Past Due		Loans Past Due 90 Days or More		Total
Single family	$	157,803	$	239	$	426	$	73	$	158,541
Multifamily	123,623		—		—		—		123,623
Commercial real estate non-owner occupied	117,971		—		—		—		117,971
Commercial real estate owner occupied	63,108		—		—		—		63,108
Construction and land development	16,230		—		—		—		16,230
Commercial business	40,836		—		—		—		40,836
Consumer and other:
Home equity lines of credit	14,942		—		—		27		14,969
Education	3,202		11		39		149		3,401
Other	462		—		—		—		462
	$	538,177	$	250	$	465	$	249	$	539,141

There were no loans past due ninety days or more and still accruing interest as of March 31, 2017 and September 30, 2016.

The following table presents the recorded investment in nonaccrual loans by class of loans as of March 31, 2017 and September 30, 2016:

	March 31, 2017		September 30, 2016
Single family	$	381	$	338
Multifamily	—		—
Commercial real estate non-owner occupied	—		—
Commercial real estate owner occupied	—		—
Construction and land development	—		—
Commercial business	—		—
Consumer and other:
Home equity lines of credit	35		36
Education	99		188
Other	—		—
	$	515	$	562

As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management categorizes loans into risk categories based on relevant information about the ability of the borrowers to service their debt and comply with various terms of their underlying loan agreements.  The Company considers current financial information, historical payment experience, credit documentation, public information and current economic trends when catgorizing its loans into risk categories.  Generally, all sizable credits receive a financial review no less than annually to monitor and adjust, if necessary, the credit’s risk profile.  Credits classified as special mention, substandard or doubtful generally receive a review quarterly.

The Company categorizes loans into the following risk categories based on relevant information about the ability of borrowers to service their debt:

Pass — A pass asset is well protected by the current worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less costs to acquire and sell in a timely manner, of any underlying collateral.

Watch — A watch asset has potential weaknesses that deserve management’s close attention.  If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Watch assets are not adversely classified and do not expose the Company to sufficient risk to warrant further classification.

Special Mention — A special mention asset has characteristics of deterioration in quality exhibited by any number of well-defined weaknesses requiring significant corrective action.  The repayment ability of the borrower has not been validated, or has become marginal or weak, and the loan may have exhibited some overdue payments or payment extensions and/or renewals.

Substandard — A substandard asset is an asset with a well-defined weakness that jeopardizes repayment, in whole or in part, of the debt.  These credits are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged.  These assets are characterized by the distinct possibility that the Company will or has sustained some loss of principal and/or interest if the deficiencies are not corrected.

Doubtful — A doubtful asset is an asset that has all the weaknesses inherent in the substandard classification with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable.  These credits have a high probability for loss, yet because certain important and reasonably specific pending factors may work toward the strengthening of the asset, its classification of loss is deferred until its more exact status can be determined.

Homogeneous loan types are assessed for credit quality based on the contractual aging status of the loan and payment activity.  In certain cases, based upon payment performance, the loan being related with another commercial type loan or for other reasons, a loan may be categorized into one of the risk categories noted above.  Such assessment is completed at the end of each reporting period.

The following tables present the risk category of loans evaluated by internal asset classification based on the most recent analysis performed and the contractual aging of our loan portfolio as of March 31, 2017 and September 30, 2016:

March 31, 2017	Pass		Watch		Special Mention		Substandard		Doubtful		Total
Single family	$	158,778	$	605	$	—	$	1,606	$	—	$	160,989
Multifamily	115,685		1,699		—		—		—		117,384
Commercial real estate non-owner occupied	126,182		1,056		—		—		—		127,238
Commercial real estate owner occupied	70,499		2,207		—		828		—		73,534
Construction and land development	17,196		—		—		1		—		17,197
Commercial business	34,359		5,393		—		3,897		—		43,649
Consumer and other:
Home equity lines of credit	13,743		—		—		93		—		13,836
Education	3,108		—		—		—		—		3,108
Other	377		—		—		—		—		377
Total	$	539,927	$	10,960	$	—	$	6,425	$	—	$	557,312

September 30, 2016	Pass		Watch		Special Mention		Substandard		Doubtful		Total
Single family	$	156,042	$	744	$	—	$	1,755	$	—	$	158,541
Multifamily	121,878		1,745		—		—		—		123,623
Commercial real estate non-owner occupied	116,880		695		396		—		—		117,971
Commercial real estate owner occupied	59,993		3,115		—		—		—		63,108
Construction and land development	16,228		—		—		2		—		16,230
Commercial business	31,677		8,945		214		—		—		40,836
Consumer and other:
Home equity lines of credit	14,874		—		—		95		—		14,969
Education	3,401		—		—		—		—		3,401
Other	462		—		—		—		—		462
	$	521,435	$	15,244	$	610	$	1,852	$	—	$	539,141

The following tables provide additional detail of the activity in the allowance for loan losses, by portfolio segment, for the three months ended March 31, 2017 and 2016:

Three Months Ended March 31, 2017	Single Family		Multifamily			Commercial Real Estate - Non-owner Occupied			Commercial Real Estate - Owner-Occupied		Construction and Land  Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	923	$	983		$	1,584		$	942	$	403		$	544	$	72		$	5,451
Provision for loan losses	7		(127		)	(99		)	190		(64		)	197		(4		)	100
Loans charged-off	—		—			—			—		—			—		—			—
Recoveries	—		—			—			6		—			2		1			9
Ending balance	$	930	$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Period-ended amount allocated for:
Individually evaluated for impairment	$	2	$	—		$	—		$	—	$	—		$	—	$	51		$	53
Collectively evaluated for impairment	928		856			1,485			1,138		339			743		18			5,507
Ending balance	$	930	$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Loans:
Individually evaluated for impairment	$	1,414	$	1,699		$	—		$	—	$	—		$	—	$	86		$	3,199
Collectively evaluated for impairment	159,575		115,685			127,238			73,534		17,197			43,649		17,235			554,113
Ending balance	$	160,989	$	117,384		$	127,238		$	73,534	$	17,197		$	43,649	$	17,321		$	557,312

Three Months Ended March 31, 2016	Single Family			Multifamily			Commercial Real Estate - Non-owner Occupied		Commercial Real Estate - Owner-Occupied		Construction and Land  Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	1,031		$	1,340		$	1,122	$	530	$	344		$	302	$	78		$	4,747
Provision for loan losses	44			(160		)	99		49		(9		)	113		(11		)	125
Loans charged-off	(30		)	—			—		—		—			—		—			(30		)
Recoveries	13			—			—		1		—			5		2			21
Ending balance	$	1,058		$	1,180		$	1,221	$	580	$	335		$	420	$	69		$	4,863
Period-ended amount allocated for:
Individually evaluated for impairment	$	3		$	—		$	—	$	—	$	—		$	—	$	54		$	57
Collectively evaluated for impairment	1,055			1,180			1,221		580		335			420		15			4,806
Ending balance	$	1,058		$	1,180		$	1,221	$	580	$	335		$	420	$	69		$	4,863
Loans:
Individually evaluated for impairment	$	1,736		$	1,789		$	—	$	—	$	—		$	—	$	92		$	3,617
Collectively evaluated for impairment	150,756			119,351			116,420		49,647		17,250			38,110		18,755			510,289
Ending balance	$	152,492		$	121,140		$	116,420	$	49,647	$	17,250		$	38,110	$	18,847		$	513,906

 The following tables provide additional detail of the activity in the allowance for loan losses, by portfolio segment, for the six months ended March 31, 2017 and 2016:

Six Months Ended March 31, 2017	Single Family			Multifamily			Commercial Real Estate -Non-owner Occupied			Commercial Real Estate -Owner- Occupied		Construction and Land Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	980		$	1,015		$	1,519		$	813	$	344		$	500	$	73		$	5,244
Provision for loan losses	(50		)	(159		)	(34		)	319		(5		)	236		(7		)	300
Loans charged-off	—			—			—			—		—			—		—			—
Recoveries	—			—			—			6		—			7		3			16
Ending balance	$	930		$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Period-ended amount allocated for:
Individually evaluated for impairment	$	2		$	—		$	—		$	—	$	—		$	—	$	51		$	53
Collectively evaluated for impairment	928			856			1,485			1,138		339			743		18			5,507
Ending balance	$	930		$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Loans:
Individually evaluated for impairment	$	1,414		$	1,699		$	—		$	—	$	—		$	—	$	86		$	3,199
Collectively evaluated for impairment	159,575			115,685			127,238			73,534		17,197			43,649		17,235			554,113
Ending balance	$	160,989		$	117,384		$	127,238		$	73,534	$	17,197		$	43,649	$	17,321		$	557,312

Six Months Ended March 31, 2016	Single Family			Multifamily		Commercial Real Estate -Non-owner Occupied		Commercial Real Estate -Owner- Occupied		Construction and Land Development		Commercial Business			Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	1,073		$	1,013	$	1,091	$	513	$	330	$	498		$	80		$	4,598
Provision for loan losses	2			167		129		66		5		(87		)	(7		)	275
Loans charged-off	(30		)	—		—		—		—		—			(10		)	(40		)
Recoveries	13			—		1		1		—		9			6			30
Ending balance	$	1,058		$	1,180	$	1,221	$	580	$	335	$	420		$	69		$	4,863
Period-ended amount allocated for:
Individually evaluated for impairment	$	3		$	—	$	—	$	—	$	—	$	—		$	54		$	57
Collectively evaluated for impairment	1,055			1,180		1,221		580		335		420			15			4,806
Ending balance	$	1,058		$	1,180	$	1,221	$	580	$	335	$	420		$	69		$	4,863
Loans:
Individually evaluated for impairment	$	1,736		$	1,789	$	—	$	—	$	—	$	—		$	92		$	3,617
Collectively evaluated for impairment	150,756			119,351		116,420		49,647		17,250		38,110			18,755			510,289
Ending balance	$	152,492		$	121,140	$	116,420	$	49,647	$	17,250	$	38,110		$	18,847		$	513,906

The following tables present additional detail of impaired loans, segregated by segment, as of and for the three and six month periods ended March 31, 2017 and 2016.  The unpaid principal balance represents the recorded balance prior to any partial charge-offs.  The recorded investment represents customer balances net of any partial charge-offs recognized on the loans by loan category.  The interest income recognized column represents all interest income on a loan reported on either a cash or accrual basis after the loan became impaired.

							Three months ended				Six months ended
March 31, 2017	Unpaid Principal Balance		Recorded Investment		Allowance for Loan Losses Allocated		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded:
Single family	$	1,273	$	1,142	$	—	$	1,158	$	12	$	1,257	$	25
Multifamily	1,733		1,699		—		1,711		18		1,722		36
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	4		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	113		35		—		35		—		35		—
With an allowance recorded:
Single family	272		272		2		273		4		182		9
Multifamily	—		—		—		—		—		—		—
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	51		51		51		51		1		51		1
	$	3,446	$	3,199	$	53	$	3,228	$	35	$	3,247	$	71

							Three months ended				Six months ended
March 31, 2016	Unpaid Principal Balance		Recorded Investment		Allowance for Loan Losses Allocated		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded:
Single family	$	1,573	$	1,425	$	—	$	1,310	$	14	$	1,267	$	28
Multifamily	1,854		1,789		—		1,803		19		1,812		38
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	116		38		—		39		—		82		—
With an allowance recorded:
Single family	311		311		3		361		3		378		7
Multifamily	—		—		—		—		—		—		—
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	54		54		54		55		1		55		2
	$	3,908	$	3,617	$	57	$	3,568	$	37	$	3,594	$	75

The following is a summary of troubled debt restructured loans (TDRs) at March 31, 2017 and September 30, 2016:

	March 31, 2017		September 30, 2016
Troubled debt restructurings - accrual	$	2,691	$	3,021
Troubled debt restructurings - nonaccrual	—		—
	$	2,691	$	3,021

Modifications of loan terms as a TDR are generally in the form of an extension of payment terms or a lowering of the interest rate, although occasionally the Bank has reduced the outstanding principal balance.

There were no loans modified as a TDR during the three or six months ended March 31, 2017 and 2016.

There were no re-defaults of TDRs that occurred during the three or six months ended March 31, 2017 and 2016.

Certain of the Bank’s directors and executive officers are loan customers of the Bank.  As of March 31, 2017 and September 30, 2016, loans of approximately $9,899 and $7,813, respectively, were outstanding to such parties.  These loans were made on substantially the same terms as those prevailing for comparable transactions with other persons and do not involve more than the normal risk of collectability.

An analysis of such loans is as follows:

	Six Months Ended March 31, 2017
Balance, beginning	$	7,813
New loans originated	2,728
Draws on lines of credit	52
Principal repayments	(694		)
Balance, ending	$	9,899

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Deposits

6 Months Ended

Mar. 31, 2017

Deposits [Abstract]

Deposits

Deposits

The following table presents the composition of deposits as of:

	March 31, 2017				September 30, 2016
	Amount		Percent		Amount		Percent
Checking Accounts:
Noninterest bearing	$	116,162	18.00	%	$	111,841	18.89	%
Interest bearing	142,311		22.05	%	135,866		22.95	%
	258,473		40.05	%	247,707		41.84	%
Passbook and Statement Savings	138,778		21.51	%	133,155		22.50	%
Variable Rate Money Market Accounts	70,094		10.86	%	64,593		10.91	%
Certificates of Deposit	177,968		27.58	%	146,522		24.75	%
	$	645,313	100.00	%	$	591,977	100.00	%

Certificate accounts equal to or over one hundred thousand dollars totaled $115,042 and $89,588 as of March 31, 2017 and September 30, 2016, respectively. Of these amounts, $38,674 and $26,154 are equal to or greater than two hundred fifty thousand dollars as of March 31, 2017 and September 30, 2016, respectively.

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Borrowings

6 Months Ended

Mar. 31, 2017

Borrowings [Abstract]

Debt Disclosure [Text Block]

Borrowings

The Bank maintains a master contract agreement with the Federal Home Loan Bank of Chicago (FHLB) that provides for borrowing of up to the maximum of 75 percent of the book value of the Bank’s first lien 1-4 family and multifamily real estate loans. The FHLB provides both fixed and floating rate advances. Floating rate advances are tied to short-term market rates of interest, such as LIBOR, Federal Funds or Treasury Bill rates. Fixed rate advances are priced in reference to market rates of interest at the time of the advance, namely the rates that the FHLB pays to borrowers at various maturities. In either case, interest is payable monthly with principal payable at maturity.

Advances are generally secured by a security agreement pledging a portion of the Bank’s residential real estate and multifamily loans. Pledged real estate mortgages, home equity lines of credit, and multifamily loans had a carrying value of $266,353 and $273,826 as of March 31, 2017, and September 30, 2016, respectively.

The Company had FHLB long-term advances with remaining contractual maturities greater than one year of $20,000 at each of March 31, 2017 and September 30, 2016. These advances are fixed rate/floating spread advances. This type of advance pays interest at a fixed rate adjusted quarterly by a spread which equals the difference between the FHLB three month advance index and three month LIBOR.

On January 19, 2017, the Company entered into a $4,000 unsecured line of credit with a correspondent bank. Interest is payable at a rate of one month LIBOR + 2.40%. As of March 31, 2017, there was no outstanding balance on the line of credit. The line is scheduled to mature on December 31, 2017.

Borrowings were as follows as of March 31, 2017 and September 30, 2016:

	March 31, 2017				September 30, 2016
	Amount		Weighted Average Cost		Amount		Weighted Average Cost
FHLB advances:
Overnight advances	$	—	—	%	$	—	—	%
Long-term advances by year of maturity:
Year ended September 30, 2019	4,000		0.89		4,000		0.94
Year ended September 30, 2020	3,000		1.10		3,000		1.16
Year ended September 30, 2021	3,000		1.29		3,000		1.34
Year ended September 30, 2022	4,000		0.89		4,000		0.84
Year ended September 30, 2023	4,000		0.99		4,000		0.93
Year ended September 30, 2024	2,000		1.10		2,000		1.04
Total long-term FHLB advances	$	20,000	1.02	%	$	20,000	1.02	%
Line of credit	—		—		—		—

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Regulatory Capital

6 Months Ended

Mar. 31, 2017

Regulatory Capital Requirements [Abstract]

Regulatory Capital

Regulatory Capital

The Bank is subject to capital requirements adopted by the Office of the Comptroller of the Currency ("OCC"). These requirements include a ratio for common equity Tier 1 ("CETI") capital, a leverage ratio and Tier 1 capital ratios and an additional capital conservation buffer over these required capital ratios. Failure to maintain the required capital conservation buffer limits the ability of the Bank to pay dividends, repurchase shares or pay discretionary bonuses. The Company is exempt from consolidated capital requirements as those requirements do not apply to certain small savings and loan holding companies with assets under $1 billion.

Under the capital regulations, the minimum capital ratios are: (1) CETI capital ratio of 4.5% of risk-weighted assets; (2) a Tier 1 capital ratio of 6.0% of risk-weighted assets; (3) a total capital ratio of 8.0% of risk-weighted assets; and (4) a leverage ratio of 4.0%. CETI generally consists of common stock and retained earnings, subject to applicable regulatory adjustments and deductions.

In addition to the minimum CETI, Tier 1 and total capital ratios, the Bank is required to maintain a capital conservation buffer consisting of additional CETI capital greater than 2.5% of risk-weighted assets above the required minimum levels in order to avoid limitations on paying dividends, engaging in share repurchases, and paying discretionary bonuses based on percentages of eligible retained income that could be utilized for such actions. This capital conservation buffer requirement is being phased in for the Bank beginning in January 2016 at 0.625% of risk-weighted assets and increases by the same amount each year until fully implemented in January 2019.

The OCC's prompt corrective action standards require the Bank, to be considered "well-capitalized", to maintain a CETI ratio of 6.5%, a Tier 1 ratio of 8.0%, a total risk-based capital ratio of 10.0% and a leverage ratio of 5.0%. As of March 31, 2017, the Bank met all these requirements, including the full capital conservation buffer.

The Bank’s actual capital amounts and ratios and those required by the regulatory standards are presented in the following tables. With respect to the capital conservation buffer, we have included the 1.250% increase for 2017 and the 0.625% increase for 2016 in our minimum capital adequacy ratios in the tables below.

At March 31, 2017	Actual				For Capital Adequacy Purposes Under Prompt Corrective Action Provisions				For Capital Adequacy Purposes with Capital Buffer				To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
CETI capital (to risk-weighted assets) - Westbury Bank	$	72,685	11.95	%	$	27,363	4.50	%	$	34,963	5.750	%	$	39,524	6.50	%
Tier 1 capital (to risk-weighted assets) - Westbury Bank	72,685		11.95	%	36,483		6.00	%	44,084		7.250	%	48,644		8.00	%
Total capital (to risk-weighted assets) - Westbury Bank	78,245		12.87	%	48,644		8.00	%	56,245		9.250	%	60,806		10.00	%
Leverage (to adjusted total assets) - Westbury Bank	72,685		10.03	%	28,987		4.00	%	N/A		N/A		36,234		5.00	%

At September 30, 2016	Actual				For Capital Adequacy Purposes Under Prompt Corrective Action Provisions				For Capital Adequacy Purposes with Capital Buffer				To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
CET1 capital (to risk-weighted assets) - Westbury Bank	$	71,383	12.61	%	$	25,472	4.50	%	$	29,010	5.125	%	$	36,793	6.50	%
Tier 1 capital (to risk-weighted assets) - Westbury Bank	71,383		12.61	%	33,963		6.00	%	37,500		6.625	%	45,283		8.00	%
Total capital (to risk-weighted assets) - Westbury Bank	76,627		13.54	%	45,283		8.00	%	48,821		8.625	%	56,604		10.00	%
Leverage (to adjusted total assets) - Westbury Bank	71,383		10.23	%	27,911		4.00	%	N/A		N/A		34,889		5.00	%

The following table reconciles the Bank’s stockholder's equity to regulatory capital as of March 31, 2017 and September 30, 2016:

	March 31, 2017			September 30, 2016
Stockholder's equity of the Bank	$	73,129		$	73,332
Less: Unrealized (gain) loss on securities	997			(561		)
Disallowed deferred tax assets	(1,441		)	(1,388		)
Tier 1, CETI and leverage capital	72,685			71,383
Plus: Allowable general valuation allowances	5,560			5,244
Total capital	$	78,245		$	76,627

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Commitments

6 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments

Commitments and Contingencies

The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to extend credit and involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the accompanying consolidated balance sheets.  The contractual amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.

The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instruments for commitments to extend credit is represented by the contractual amount of those instruments.  The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.

The following off-balance sheet instruments were outstanding whose contract amounts represent credit risk:

	March 31, 2017		September 30, 2016
Commitments to extend commercial and residential mortgage credit:
Fixed rate	$	909	$	2,013
Adjustable rate	5,992		1,442
Unused commercial loan lines of credit	100,390		68,752
Unused home equity line of credit	28,083		27,315
Standby letters of credit	1,619		1,076
Commitment to sell loans	277		1,881

Commitments to extend credit are agreements to lend funds to a customer as long as there is no violation of any condition established in the underlying contract.  Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee.  As some such commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  The Company evaluates each customer’s creditworthiness on a case-by-case basis.  The Company generally extends credit only on a secured basis.

Unfunded commitments under lines of credit are commitments for possible future extensions of credit to existing customers.  These lines of credit ultimately may not be drawn upon to the total extent to which the Company is committed.

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party.  Those letters of credit are primarily issued to support public and private borrowing arrangements, and, generally, have terms of one year or less.  The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.  The Company holds collateral supporting those commitments if deemed necessary.  In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment.  The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount shown in the summary above.  If the commitment is funded, the Company would be entitled to seek recovery from the customer.  At March 31, 2017 and September 30, 2016, no amounts have been recorded as liabilities for the Company’s potential obligations under these commitments.

Litigation

In the normal course of business, the Company is involved in various legal proceedings. In the opinion of management, any liabilities resulting from such proceedings would not have a material adverse effect on the Company's consolidated financial statements.

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Fair Value Measurements

6 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

ASC Topic 820, Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants.  ASC Topic 820 requires the use of valuation techniques that are consistent with the market approach, the income approach and/or the cost approach.  Inputs to valuation techniques refer to the assumptions that market participants would use in pricing the asset or liability.  Inputs may be observable, meaning those that reflect the assumptions market participants would use in pricing the asset or liability developed based on market data obtained from independent sources, or unobservable, meaning those that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances.  In that regard, ASC Topic 820 establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:

Level 1:  Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2:  Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3:  Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the fair value hierarchy, is set forth below.

Financial Instruments Recorded at Fair Value on a Recurring Basis

Securities available-for-sale:  The fair value of the Company’s securities available-for-sale is determined using Level 2 inputs, which are derived from readily available pricing sources and third-party pricing services for comparable instruments.  The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, treasury yield curves, trading levels, credit information and credit terms, among other factors. In certain cases where Level 1 or Level 2 inputs are not available, securities are classified within Level 3 of the fair value hierarchy.

Derivatives:  The fair values of the Company’s embedded derivatives related to certain certificates of deposit are determined using inputs that are observable or that can be corroborated by observable market data (such as the S&P 500 Index and the 10- year U.S. Treasury rate) and, therefore, are classified within Level 2 of the fair value hierarchy.

Assets and liabilities recorded at fair value on a recurring basis

The following table summarizes financial instruments measured at fair value on a recurring basis, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value as of:

			Fair Value Measurements
March 31, 2017	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale
U.S. Government and agency securities	$	25	$	—	$	25	$	—
U.S. Government agency residential mortgage-backed securities	51,103		—		51,103		—
U.S. Government agency collateralized mortgage obligations	5,606		—		5,606		—
U.S. Government agency commercial mortgage-backed securities	15,419		—		15,419		—
Municipal securities-tax exempt	30,340		—		30,340		—
Municipal securities-taxable	12,715		—		12,715		—
Total securities available-for-sale	$	115,208	$	—	$	115,208	$	—
Derivatives	$	—	$	—	$	—	$	—
Liabilities
Derivatives	$	—	$	—	$	—	$	—

			Fair Value Measurements
September 30, 2016	Total		Quoted Prices in Active Markets  for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale
U.S. Government and agency securities	$	25	$	—	$	25	$	—
U.S. Government agency residential mortgage-backed securities	40,750		—		40,750		—
U.S. Government agency collateralized mortgage obligations	2,680		—		2,680		—
U.S. Government agency commercial mortgage-backed securities	11,526		—		11,526		—
Municipal securities-tax exempt	25,682		—		25,682		—
Municipal securities-taxable	13,109		—		13,109		—
Total securities available-for-sale	$	93,772	$	—	$	93,772	$	—
Derivatives	$	98	$	—	$	98	$	—
Liabilities
Derivatives	$	98	$	—	$	98	$	—

The Company did not have any transfers between Level 1, Level 2, and Level 3 of the fair value hierarchy during the six months ended March 31, 2017.  The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and, therefore, result in a transfer between levels.

Financial Instruments Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain financial instruments at fair value on a nonrecurring basis in accordance with U.S. generally accepted accounting principles.

Impaired loans:  The Company does not record loans at fair value on a recurring basis.  The specific reserves for collateral-dependent impaired loans are based on the fair value of the collateral less estimated costs to sell. The fair value of collateral is determined based on appraisals.  In some cases, adjustments were 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.  When significant adjustments were based on unobservable inputs, the resulting fair value measurement has been categorized as a Level 3 measurement.  Impaired loans with a carrying amount of $323 and $52 had a valuation allowance of $53 and $52 included in the allowance for loan losses to reflect their fair value as of March 31, 2017 and September 30, 2016, respectively.

Foreclosed real estate:  The Company does not record foreclosed real estate owned at fair value on a recurring basis.  The fair value of foreclosed real estate was determined using Level 3 inputs based on appraisals or broker pricing opinions.  In some cases, adjustments were made to these values due to various factors including the age of the appraisal, age of comparables included in the appraisal, and known changes in the market and in collateral.  Foreclosed real estate is measured at fair value less estimated costs to sell at the date of foreclosure.  Subsequent to foreclosure, additional writedowns may be recorded based on changes to the fair value of the assets.

Mortgage servicing rights:  Mortgage servicing rights (MSRs) do not trade in an active, open market with readily observable prices.  While sales of MSRs do occur, the precise terms and conditions typically are not readily available.  Accordingly, the Company estimates the fair value of MSRs using discounted cash flow models incorporating numerous assumptions from the perspective of market participants including servicing income, servicing costs, market discount rates, prepayments speeds, and default rates.  Due to the nature of the valuation inputs, MSRs are classified within Level 3 of the valuation hierarchy.  As of March 31, 2017, mortgage servicing rights with a carrying amount of $894 had a valuation allowance of $60 to reflect their fair value of $834.  As of September 30, 2016, mortgage servicing rights with a carrying amount of $1,012 had a valuation allowance of $212 to reflect their fair value of $800.

Assets and liabilities recorded at fair value on a non-recurring basis

			Fair Value Measurements
March 31, 2017	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Impaired loans	$	270	$	—	$	—	$	270
Foreclosed real estate	—		—		—		—
Mortgage servicing rights	834		—		—		834

			Fair Value Measurements
September 30, 2016	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Impaired loans	$	—	$	—	$	—	$	—
Foreclosed real estate	99		—		—		99
Mortgage servicing rights	800		—		—		800

Disclosure of fair value information about financial instruments, for which it is practicable to estimate that value, is required whether or not recognized in the accompanying consolidated balance sheets.  In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques.  Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows.  In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instruments.  Certain financial instruments with a fair value that is not practicable to estimate and all non-financial instruments are excluded from the disclosure requirements.  Accordingly, the aggregate fair value amounts presented herein do not necessarily represent the underlying value of the Company for assets and liabilities not previously described.  The Company, in estimating its fair value disclosures for financial instruments not described above, used the following methods and assumptions:

Cash and cash equivalents:  The carrying amounts of cash and cash equivalents reported in the accompanying consolidated balance sheets approximate those assets’ fair values.

Securities held to maturity: The fair values of securities held to maturity are based on quoted market prices for similar securities, adjusted for differences in security characteristics.

Loans:  For variable-rate mortgage loans that re-price frequently and with no significant change in credit risk, fair values are based on carrying values.  The fair values for fixed rate residential mortgage loans are based on quoted market prices for similar loans sold in conjunction with sale transactions, adjusted for differences in loan characteristics.  The fair values for commercial real estate or business loans, rental property mortgage loans, and consumer and other loans are estimated using discounted cash flow analyses and using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality.

Loans held for sale:  The fair values of loans held for sale are based on commitments on hand from investors or prevailing market prices.

Federal Home Loan Bank stock:  The carrying amount of FHLB stock approximates its fair value based on the redemption provisions of the FHLB.

Accrued interest receivable and payable:  The carrying amounts of accrued interest receivable and payable approximate their fair values.

Deposits:  The fair value disclosed for interest-bearing and non-interest-bearing checking accounts, savings accounts, and money market accounts are equal to the amount payable on demand at the reporting date (i.e., their carrying amounts).  The fair values of fixed rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates of deposit to a schedule of aggregated expected monthly maturities of the outstanding certificates of deposit.

Advances from the Federal Home Loan Bank:  The fair values of FHLB advances are estimated using discounted cash flow analyses, based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. The carrying amounts of short term FHLB advances reported in the consolidated balance sheets approximated those liabilities' fair values.

Advance payments by borrowers for property taxes and insurance:  The carrying amounts of the advance payments by borrowers for property taxes and insurance approximate their fair values.

Mortgage banking derivatives:  The fair value of commitments to originate mortgage loans held for sale is estimated by comparing the Company’s cost to acquire mortgages and the current price for similar mortgage loans, taking into account the terms of the commitments and the credit worthiness of the counterparties.  The fair value of forward commitments to sell residential mortgage loans is the estimated amount that the Bank would receive or pay to terminate the forward delivery contract at the reporting date based on market prices for similar financial instruments.  The fair value of these derivative financial instruments was not material at either March 31, 2017 and September 30, 2016.

The estimated fair values and related carrying amounts of the Company’s financial instruments as of the dates noted below were as follows:

	March 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	44,086	$	44,086	$	44,086	$	—	$	—
Securities available for sale	115,208		115,208		—		115,208		—
Securities held to maturity	2,293		2,324		—		2,324		—
Loans held for sale, net	277		277		—		277		—
Loans, net	551,611		547,751		—		—		547,751
Federal Home Loan Bank stock	1,301		1,301		—		—		1,301
Mortgage servicing rights	834		834		—		—		834
Accrued interest receivable	2,351		2,351		2,351		—		—
Derivative asset	—		—		—		—		—
Financial liabilities:
Deposits	645,313		608,173		116,162		—		492,011
Short-term advances from Federal Home Loan Bank	—		—		—		—		—
Long-term advances from Federal Home Loan Bank	20,000		18,734		—		—		18,734
Advance payments by borrowers for property taxes and insurance	1,818		1,818		1,818		—		—
Accrued interest payable	6		6		6		—		—
Derivative liability	—		—		—		—		—

	September 30, 2016
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	29,613	$	29,613	$	29,613	$	—	$	—
Securities available for sale	93,772		93,772		—		93,772		—
Securities held to maturity	2,293		2,392		—		2,392		—
Loans held for sale, net	1,881		1,881		—		1,881		—
Loans, net	533,759		536,434		—		—		536,434
Federal Home Loan Bank stock	1,330		1,330		—		—		1,330
Mortgage servicing rights	800		800		—		—		800
Accrued interest receivable	2,173		2,173		2,173		—		—
Derivative asset	98		98		—		98		—
Financial liabilities:
Deposits	591,977		574,787		111,841		—		462,946
Short-term advances from Federal Home Loan Bank	—		—		—		—		—
Long-term advances from Federal Home Loan Bank	20,000		19,472		—		—		19,472
Advance payments by borrowers for property taxes and insurance	5,455		5,455		5,455		—		—
Accrued interest payable	5		5		5		—		—
Derivative liability	98		98		—		98		—

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Employee Stock Ownership Plan

6 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Employee Stock Ownership Plan

Employee Stock Ownership Plan

The Bank maintains a leveraged employee stock ownership plan ("ESOP") that covers all employees meeting certain minimum age and service requirements. The ESOP was established in conjunction with the Company's stock offering completed in April 2013 and operates on a plan year ending December 31. The ESOP initially borrowed $4,100 from the Company and used those funds to acquire 411,403 shares, or 8.0% of the total number of shares issued by the Company in its initial public offering. The shares were acquired at a price of $10.00 per share.

The Bank makes contributions to the ESOP equal to or greater than the ESOP's debt service. Additional principal payments, which serve to pay down the debt and accelerate the release of unallocated ESOP shares to plan participants, may be made by the Bank at the discretion of its Board of Directors. An additional principal payment of $264 was made at December 31, 2016. The ESOP shares were pledged as collateral for its debt obligations to the Company. As the debt is repaid, shares are committed to be released from collateral and allocated to active participants at calendar year end, based on the proportion of debt service paid in the year. The debt repayment and release of shares generally occurs at December 31, the plan year end date. The Company accounts for its ESOP in accordance with ASC 718-40. Accordingly, because the debt is intercompany, it is eliminated in consolidation for presentation in these financial statements. The shares pledged as collateral are reported as unearned ESOP shares in the accompanying balance sheet. Total ESOP shares may be reduced as a result of employees leaving the Company as shares that have previously been released to those exiting employees may be removed from the ESOP and transferred to that employee.

As shares are committed to be released from collateral, the Company reports compensation expense equal to the current market price of the released shares, and the released shares become outstanding for earnings per share computations. During the three months ended March 31, 2017 and 2016, 10,285 and 10,285 shares were committed to be released, respectively. The total ESOP compensation expense recorded for the three months ended March 31, 2017 and 2016 was $214 and $192, respectively. During the six months ended March 31, 2017 and 2016, 20,570 and 15,427 shares were committed to be released, including 10,285 and 5,142, respectively, which were released and available for allocation at December 31, 2017 and 2016, respectively, concurrent with the payment of the annual debt service on the ESOP loan. The total ESOP compensation expense recorded for the six months ended March 31, 2017 and 2016 was $421 and $283, respectively.

The ESOP shares as of March 31, 2017 and September 30, 2016 were as follows (in thousands, except share data):

	March 31, 2017		September 30, 2016
Allocated shares to active participants	93,754		52,773
Shares committed to be released	10,285		30,855
Unallocated shares	298,268		318,838
Total ESOP shares	402,307		402,466
Fair value of unallocated shares	$	6,210	$	6,227

Plans

ASC Topic 718 requires that the grant date fair value of equity awards to employees be recognized as compensation expense over the period during which an employee is required to provide service in exchange for such award.

The following table summarizes the impact of the Company's share-based payment plans in the financial statements for the periods shown:

	Three Months Ended March 31,				Six Months Ended March 31,
	2017		2016		2017		2016
Total cost of stock grant plan during the period	$	146	$	151	$	280	$	302
Total cost of stock option plan during the period	67		58		131		115
Total cost of share-based payment plans during the period	$	213	$	209	$	411	417
Amount of related income tax benefit recognized in income	$	84	$	82	$	161	$	164

The Company adopted the Westbury Bancorp Inc 2014 Equity Incentive Plan (the "Plan") in 2014. In June 2014, the Company's stockholders approved the Plan which authorized the issuance under the Plan of up to 203,665 restricted stock awards and up to 509,162 stock options. As of December 31, 2016 there were 5,536 restricted stock awards and 34,784 options available for future grants. At the Company's annual meeting of stockholders, held on February 15, 2017, the stockholders of the Company approved an amendment to the Plan authorizing 20,000 additional restricted stock awards and an additional 200,000 stock options available for issuance as awards under the Plan. As of March 31, 2017 there were 27,980 restricted stock awards and 238,910 options available for future grants.

Annual equity-based incentive awards are typically granted to selected officers and employees mid-year. Options are granted with an exercise price equal to no less than the market price of the Company's common shares at the date of grant: those option awards generally vest pro-rata over five years of service and have 10-year contractual terms. Restricted shares typically vest pro-rata over a five year period. Equity awards may also be granted at other times throughout the year in connection with the recruitment and retention of officers and employees.

ASC Topic 718 requires that the grant date fair value of equity awards to employees be recognized as compensation expense over the period during which an employee is required to provide service in exchange for such award.

The following table summarizes stock options outstanding for the three and six months ended March 31, 2017:

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of December 31, 2016	464,185	$	16.49
Granted	—	—
Exercised	5,896	15.49
Expired or canceled	300	17.43
Forfeited	3,826	15.20
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of September 30, 2016	474,132	$	16.46
Granted	2,750	21.00
Exercised	5,896	15.49
Expired or canceled	450	17.4
Forfeited	16,373	15.92
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model based on certain assumptions. Expected volatility is based on historical volatility and the expectations of future volatility of Company shares. The risk free interest rate for periods within the contractual term of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. Since options were first awarded in June 2014 and the Company has had a minimal number of options exercised by participants in the Plan, the expected life of options is estimated based on the assumption that options will be exercised evenly throughout their life after vesting and represents the period of time that options granted are expected to remain outstanding.

The following assumptions were used for options granted during the six months ended March 31:

	2017			2016
Risk-free interest rate	2.19		%	1.71		%
Expected volatility of Company's stock	15.74		%	7.73		%
Expected dividend yield	—		%	—		%
Expected life of options (years)	7.5			7.5
Weighted average fair value per option of options granted during the period	$	5.14		$	2.76

The total intrinsic value of options exercised during each of the six months ended March 31, 2017 and 2016 was $36 and $10, respectively. The total intrinsic value of options exercised during each of the three months ended March 31, 2017 and 2016

was $36 and $10, respectively.

The following is a summary of changes in restricted shares for the three and six months ended March 31, 2017:

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at December 31, 2016	118,105	$	15.60
Granted	—	—
Vested	1,222	15.20
Forfeited	2,444	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at September 30, 2016	114,883	$	15.20
Granted	7,500	21.50
Vested	1,222	15.20
Forfeited	6,722	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

The total intrinsic value of restricted shares that vested during both of the three and six months ended March 31, 2017 and 2016 was $27 and zero, respectively.

As of March 31, 2017, there was $2.1 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements (including share option and nonvested share awards) granted under the Plan. At March 31, 2017, the weighted-average period over which the unrecognized compensation expense is expected to be recognized was approximately 2.7 years.

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Compensation Equity Plans

6 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation Equity Plans

Employee Stock Ownership Plan

The Bank maintains a leveraged employee stock ownership plan ("ESOP") that covers all employees meeting certain minimum age and service requirements. The ESOP was established in conjunction with the Company's stock offering completed in April 2013 and operates on a plan year ending December 31. The ESOP initially borrowed $4,100 from the Company and used those funds to acquire 411,403 shares, or 8.0% of the total number of shares issued by the Company in its initial public offering. The shares were acquired at a price of $10.00 per share.

The Bank makes contributions to the ESOP equal to or greater than the ESOP's debt service. Additional principal payments, which serve to pay down the debt and accelerate the release of unallocated ESOP shares to plan participants, may be made by the Bank at the discretion of its Board of Directors. An additional principal payment of $264 was made at December 31, 2016. The ESOP shares were pledged as collateral for its debt obligations to the Company. As the debt is repaid, shares are committed to be released from collateral and allocated to active participants at calendar year end, based on the proportion of debt service paid in the year. The debt repayment and release of shares generally occurs at December 31, the plan year end date. The Company accounts for its ESOP in accordance with ASC 718-40. Accordingly, because the debt is intercompany, it is eliminated in consolidation for presentation in these financial statements. The shares pledged as collateral are reported as unearned ESOP shares in the accompanying balance sheet. Total ESOP shares may be reduced as a result of employees leaving the Company as shares that have previously been released to those exiting employees may be removed from the ESOP and transferred to that employee.

As shares are committed to be released from collateral, the Company reports compensation expense equal to the current market price of the released shares, and the released shares become outstanding for earnings per share computations. During the three months ended March 31, 2017 and 2016, 10,285 and 10,285 shares were committed to be released, respectively. The total ESOP compensation expense recorded for the three months ended March 31, 2017 and 2016 was $214 and $192, respectively. During the six months ended March 31, 2017 and 2016, 20,570 and 15,427 shares were committed to be released, including 10,285 and 5,142, respectively, which were released and available for allocation at December 31, 2017 and 2016, respectively, concurrent with the payment of the annual debt service on the ESOP loan. The total ESOP compensation expense recorded for the six months ended March 31, 2017 and 2016 was $421 and $283, respectively.

The ESOP shares as of March 31, 2017 and September 30, 2016 were as follows (in thousands, except share data):

	March 31, 2017		September 30, 2016
Allocated shares to active participants	93,754		52,773
Shares committed to be released	10,285		30,855
Unallocated shares	298,268		318,838
Total ESOP shares	402,307		402,466
Fair value of unallocated shares	$	6,210	$	6,227

Plans

ASC Topic 718 requires that the grant date fair value of equity awards to employees be recognized as compensation expense over the period during which an employee is required to provide service in exchange for such award.

The following table summarizes the impact of the Company's share-based payment plans in the financial statements for the periods shown:

	Three Months Ended March 31,				Six Months Ended March 31,
	2017		2016		2017		2016
Total cost of stock grant plan during the period	$	146	$	151	$	280	$	302
Total cost of stock option plan during the period	67		58		131		115
Total cost of share-based payment plans during the period	$	213	$	209	$	411	417
Amount of related income tax benefit recognized in income	$	84	$	82	$	161	$	164

The Company adopted the Westbury Bancorp Inc 2014 Equity Incentive Plan (the "Plan") in 2014. In June 2014, the Company's stockholders approved the Plan which authorized the issuance under the Plan of up to 203,665 restricted stock awards and up to 509,162 stock options. As of December 31, 2016 there were 5,536 restricted stock awards and 34,784 options available for future grants. At the Company's annual meeting of stockholders, held on February 15, 2017, the stockholders of the Company approved an amendment to the Plan authorizing 20,000 additional restricted stock awards and an additional 200,000 stock options available for issuance as awards under the Plan. As of March 31, 2017 there were 27,980 restricted stock awards and 238,910 options available for future grants.

Annual equity-based incentive awards are typically granted to selected officers and employees mid-year. Options are granted with an exercise price equal to no less than the market price of the Company's common shares at the date of grant: those option awards generally vest pro-rata over five years of service and have 10-year contractual terms. Restricted shares typically vest pro-rata over a five year period. Equity awards may also be granted at other times throughout the year in connection with the recruitment and retention of officers and employees.

ASC Topic 718 requires that the grant date fair value of equity awards to employees be recognized as compensation expense over the period during which an employee is required to provide service in exchange for such award.

The following table summarizes stock options outstanding for the three and six months ended March 31, 2017:

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of December 31, 2016	464,185	$	16.49
Granted	—	—
Exercised	5,896	15.49
Expired or canceled	300	17.43
Forfeited	3,826	15.20
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of September 30, 2016	474,132	$	16.46
Granted	2,750	21.00
Exercised	5,896	15.49
Expired or canceled	450	17.4
Forfeited	16,373	15.92
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model based on certain assumptions. Expected volatility is based on historical volatility and the expectations of future volatility of Company shares. The risk free interest rate for periods within the contractual term of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. Since options were first awarded in June 2014 and the Company has had a minimal number of options exercised by participants in the Plan, the expected life of options is estimated based on the assumption that options will be exercised evenly throughout their life after vesting and represents the period of time that options granted are expected to remain outstanding.

The following assumptions were used for options granted during the six months ended March 31:

	2017			2016
Risk-free interest rate	2.19		%	1.71		%
Expected volatility of Company's stock	15.74		%	7.73		%
Expected dividend yield	—		%	—		%
Expected life of options (years)	7.5			7.5
Weighted average fair value per option of options granted during the period	$	5.14		$	2.76

The total intrinsic value of options exercised during each of the six months ended March 31, 2017 and 2016 was $36 and $10, respectively. The total intrinsic value of options exercised during each of the three months ended March 31, 2017 and 2016

was $36 and $10, respectively.

The following is a summary of changes in restricted shares for the three and six months ended March 31, 2017:

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at December 31, 2016	118,105	$	15.60
Granted	—	—
Vested	1,222	15.20
Forfeited	2,444	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at September 30, 2016	114,883	$	15.20
Granted	7,500	21.50
Vested	1,222	15.20
Forfeited	6,722	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

The total intrinsic value of restricted shares that vested during both of the three and six months ended March 31, 2017 and 2016 was $27 and zero, respectively.

As of March 31, 2017, there was $2.1 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements (including share option and nonvested share awards) granted under the Plan. At March 31, 2017, the weighted-average period over which the unrecognized compensation expense is expected to be recognized was approximately 2.7 years.

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Condensed Parent Company Financial Information

6 Months Ended

Mar. 31, 2017

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Parent Company Financial Information

Condensed Parent Company Financial Information

The condensed financial statements of Westbury Bancorp, Inc. (parent company only) are presented for the periods indicated below:

Balance Sheets
	March 31,		September 30,
	2017		2016
Assets
Cash and interest bearing deposits	$	137	$	251
Investments	41		55
Loan to ESOP	3,094		3,620
Investment in subsidiary	75,247		75,872
Other assets	2,700		2,397
Total assets	$	81,219	$	82,195
Liabilities and Stockholders' Equity
Total liabilities	$	20	$	26
Stockholders' equity	81,199		82,169
Total liabilities and stockholders' equity	$	81,219	$	82,195

Statements of Operations
	Three Months Ended March 31,						Six Months Ended March 31,
	2017			2016			2017			2016
Interest and other income	$	30		$	33		$	62		$	65
Interest and other expense	174			130			316			251
Loss before income tax benefit and equity in undistributed net income of subsidiary	(144		)	(97		)	(254		)	(186		)
Income tax benefit	(39		)	(21		)	(65		)	(39		)
Loss before equity in undistributed net income of subsidiary	(105		)	(76		)	(189		)	(147		)
Equity in undistributed net income of subsidiary	851			949			1,682			2,059
Net income	$	746		$	873		$	1,493		$	1,912

Statements of Cash Flows
	For Six Months Ended March 31,
	2017			2016
Cash Flows From Operating Activities
Net income	$	1,493		$	1,912
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Equity in undistributed net income of subsidiary	(1,682		)	(2,059		)
Net change in other liabilities	(6		)	(56		)
Net change in other assets	108			693
Net cash provided by (used in) operating activities	(87		)	490
Cash Flows From Investing Activities
Sales and maturities of securities	14			40
Payments received on ESOP loan	526			158
Dividend received from bank subsidiary	750			2,000
Net cash provided by investing activities	1,290			2,198
Cash Flows From Financing Activities
Stock options exercised	92			64
Repurchase of common stock	(1,409		)	(3,242		)
Net cash used in financing activities	(1,317		)	(3,178		)
Net decrease in cash	(114		)	(490		)
Cash
Beginning of period	251			1,440
End of period	$	137		$	950

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Earnings Per Share (Tables)

6 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Schedule of calculated earnings per share, basic and diluted

The following table presents a reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share (in thousands, except share and per share data).

	Three Months Ended March 31,						Six Months Ended March 31,
	2017			2016			2017			2016
Net income	$	746		$	873		$	1,493		$	1,912
Basic potential common shares:
Weighted average shares outstanding	3,936,596			4,073,133			3,955,400			4,118,040
Weighted average unallocated ESOP shares	(305,130		)	(346,266		)	(310,329		)	(349,713		)
Basic weighted average shares outstanding	3,631,466			3,726,867			3,645,071			3,768,327
Dilutive effect of equity awards	99,009			53,290			90,125			47,662
Diluted weighted average shares outstanding	3,730,475			3,780,157			3,735,196			3,815,989
Basic income per share	$	0.21		$	0.23		$	0.41		$	0.51
Diluted income per share	$	0.20		$	0.23		$	0.40		$	0.50

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Investment Securitites (Tables)

6 Months Ended

Mar. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Schedule of amortized costs and fair values of securities available-for-sale

The amortized cost and fair value of investment securities are summarized as follows:

	March 31, 2017
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. Government and agency securities	$	25	$	—	$	—		$	25
U.S. Government agency residential mortgage-backed securities	51,780		132		(809		)	51,103
U.S. Government agency collateralized mortgage obligations	5,708		11		(113		)	5,606
U.S. Government agency commercial mortgage-backed securities	15,452		20		(53		)	15,419
Municipal securities-tax exempt	31,147		30		(837		)	30,340
Municipal securities-taxable	12,735		43		(63		)	12,715
Total Available for Sale	116,847		236		(1,875		)	115,208
Held to Maturity
Municipal securities-tax exempt	2,293		32		(1		)	2,324
Total Investment Securities	$	119,140	$	268	$	(1,876	)	$	117,532
	September 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available for Sale
U.S. Government and agency securities	$	24	$	1	$	—		$	25
U.S. Government agency residential mortgage-backed securities	40,289		504		(43		)	40,750
U.S. Government agency collateralized mortgage obligations	2,674		24		(18		)	2,680
U.S. Government agency commercial mortgage-backed securities	11,376		150		—			11,526
Municipal securities-tax exempt	25,730		51		(99		)	25,682
Municipal securities-taxable	12,756		358		(5		)	13,109
Total Available for Sale	92,849		1,088		(165		)	93,772
Held to Maturity
Municipal securities-tax exempt	2,293		99		—			2,392
Total Investment Securities	$	95,142	$	1,187	$	(165	)	$	96,164

Schedule of amortized cost and estimated fair value of investment securities by contractual maturity

The amortized cost and fair value of investment securities, by contractual maturity, at March 31, 2017 are shown in the following table.  Actual maturities differ from contractual maturities for mortgage-backed securities and collateralized mortgage obligations because the mortgages underlying the securities may be called or repaid without penalty.  Therefore, these securities are not presented in the maturity categories in the table below.

	March 31, 2017
	Amortized Cost		Fair Value
Available for sale:
Due in one year or less	$	920	$	922
Due after one year through five years	13,677		13,654
Due after five years through ten years	23,609		22,952
Due after ten years	5,701		5,552
U.S. Government agency residential mortgage-backed securities	51,780		51,103
U.S. Government agency collateralized mortgage obligations	5,708		5,606
U.S. Government agency commercial mortgage-backed securities	15,452		15,419
	116,847		115,208
Held to maturity:
Due in one year or less	168		168
Due after one year through five years	703		705
Due after five years through ten years	982		999
Due after ten years	440		452
	2,293		2,324
Total	$	119,140	$	117,532

Schedule of investment securities in an unrealized loss position

Information pertaining to securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized as follows:

	March 31, 2017
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government and agency securities	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agency residential mortgage-backed securities	36,078		(762		)	2,697		(47		)	38,775		(809		)
U.S. Government agency collateralized mortgage obligations	2,497		(79		)	512		(34		)	3,009		(113		)
U.S Government agency commercial mortgage-backed securities	11,603		(53		)	—		—			11,603		(53		)
Municipal securities-tax exempt	24,748		(837		)	—		—			24,748		(837		)
Municipal securities-taxable	6,091		(63		)	—		—			6,091		(63		)
Total Available for Sale	$	81,017	$	(1,794	)	$	3,209	$	(81	)	$	84,226	$	(1,875	)
Held to Maturity
Municipal securities-tax exempt	345		(1		)	—		—			345		(1		)
Total Investment Securities	$	81,362	$	(1,795	)	$	3,209	$	(81	)	$	84,571	$	(1,876	)

	September 30, 2016
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government and agency securities	$	—	$	—		$	—	$	—		$	—	$	—
U.S. Government agency residential mortgage-backed securities	2,726		(5		)	3,020		(38		)	5,746		(43		)
U.S. Government agency collateralized mortgage obligations	—		—			576		(18		)	576		(18		)
U.S. Government agency commercial mortgage-backed securities	—		—			—		—			—		—
Municipal securities-tax exempt	18,314		(99		)	—		—			18,314		(99		)
Municipal securities-taxable	550		(5		)	—		—			550		(5		)
Total Available for Sale	$	21,590	$	(109	)	$	3,596	$	(56	)	$	25,186	$	(165	)
Held to Maturity
Municipal securities-tax exempt	—		—			—		—			—		—
Total Investment Securities	$	21,590	$	(109	)	$	3,596	$	(56	)	$	25,186	$	(165	)

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Loans (Tables)

6 Months Ended

Mar. 31, 2017

Loans

Summary of balances of loans

A summary of the balances of loans as of the dates indicated follows:

	March 31, 2017		September 30, 2016
Real estate:
Single family	$	160,989	$	158,541
Multifamily	117,384		123,623
Commercial real estate non-owner occupied	127,238		117,971
Commercial real estate owner occupied	73,534		63,108
Construction and land development	17,197		16,230
Total real estate	496,342		479,473
Commercial business	43,649		40,836
Consumer:
Home equity lines of credit	13,836		14,969
Education	3,108		3,401
Other	377		462
Total consumer	17,321		18,832
Total loans	557,312		539,141
Less:
Net deferred loan fees	141		138
Allowance for loan losses	5,560		5,244
Net loans	$	551,611	$	533,759

Schedule of contractual aging of recorded investment in past due loans

The following tables present the contractual aging of the Company's recorded investment in past due loans by class of loans as of March 31, 2017 and September 30, 2016:

March 31, 2017	Current		30-59 Days Past Due		60-89 Days Past Due		Loans Past Due 90 Days or More		Total
Single family	$	159,825	$	799	$	—	$	365	$	160,989
Multifamily	117,384		—		—		—		117,384
Commercial real estate non-owner occupied	127,238		—		—		—		127,238
Commercial real estate owner occupied	73,534		—		—		—		73,534
Construction and land development	17,197		—		—		—		17,197
Commercial business	43,649		—		—		—		43,649
Consumer and other:
Home equity lines of credit	13,809		—		—		27		13,836
Education	2,961		48		39		60		3,108
Other	377		—		—		—		377
	$	555,974	$	847	$	39	$	452	$	557,312

September 30, 2016	Current		30-59 Days Past Due		60-89 Days Past Due		Loans Past Due 90 Days or More		Total
Single family	$	157,803	$	239	$	426	$	73	$	158,541
Multifamily	123,623		—		—		—		123,623
Commercial real estate non-owner occupied	117,971		—		—		—		117,971
Commercial real estate owner occupied	63,108		—		—		—		63,108
Construction and land development	16,230		—		—		—		16,230
Commercial business	40,836		—		—		—		40,836
Consumer and other:
Home equity lines of credit	14,942		—		—		27		14,969
Education	3,202		11		39		149		3,401
Other	462		—		—		—		462
	$	538,177	$	250	$	465	$	249	$	539,141

Schedule of risk category of loans

The following tables present the risk category of loans evaluated by internal asset classification based on the most recent analysis performed and the contractual aging of our loan portfolio as of March 31, 2017 and September 30, 2016:

March 31, 2017	Pass		Watch		Special Mention		Substandard		Doubtful		Total
Single family	$	158,778	$	605	$	—	$	1,606	$	—	$	160,989
Multifamily	115,685		1,699		—		—		—		117,384
Commercial real estate non-owner occupied	126,182		1,056		—		—		—		127,238
Commercial real estate owner occupied	70,499		2,207		—		828		—		73,534
Construction and land development	17,196		—		—		1		—		17,197
Commercial business	34,359		5,393		—		3,897		—		43,649
Consumer and other:
Home equity lines of credit	13,743		—		—		93		—		13,836
Education	3,108		—		—		—		—		3,108
Other	377		—		—		—		—		377
Total	$	539,927	$	10,960	$	—	$	6,425	$	—	$	557,312

September 30, 2016	Pass		Watch		Special Mention		Substandard		Doubtful		Total
Single family	$	156,042	$	744	$	—	$	1,755	$	—	$	158,541
Multifamily	121,878		1,745		—		—		—		123,623
Commercial real estate non-owner occupied	116,880		695		396		—		—		117,971
Commercial real estate owner occupied	59,993		3,115		—		—		—		63,108
Construction and land development	16,228		—		—		2		—		16,230
Commercial business	31,677		8,945		214		—		—		40,836
Consumer and other:
Home equity lines of credit	14,874		—		—		95		—		14,969
Education	3,401		—		—		—		—		3,401
Other	462		—		—		—		—		462
	$	521,435	$	15,244	$	610	$	1,852	$	—	$	539,141

Schedule of activity in the allowance for loan losses, by portfolio segment

The following tables provide additional detail of the activity in the allowance for loan losses, by portfolio segment, for the three months ended March 31, 2017 and 2016:

Three Months Ended March 31, 2017	Single Family		Multifamily			Commercial Real Estate - Non-owner Occupied			Commercial Real Estate - Owner-Occupied		Construction and Land  Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	923	$	983		$	1,584		$	942	$	403		$	544	$	72		$	5,451
Provision for loan losses	7		(127		)	(99		)	190		(64		)	197		(4		)	100
Loans charged-off	—		—			—			—		—			—		—			—
Recoveries	—		—			—			6		—			2		1			9
Ending balance	$	930	$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Period-ended amount allocated for:
Individually evaluated for impairment	$	2	$	—		$	—		$	—	$	—		$	—	$	51		$	53
Collectively evaluated for impairment	928		856			1,485			1,138		339			743		18			5,507
Ending balance	$	930	$	856		$	1,485		$	1,138	$	339		$	743	$	69		$	5,560
Loans:
Individually evaluated for impairment	$	1,414	$	1,699		$	—		$	—	$	—		$	—	$	86		$	3,199
Collectively evaluated for impairment	159,575		115,685			127,238			73,534		17,197			43,649		17,235			554,113
Ending balance	$	160,989	$	117,384		$	127,238		$	73,534	$	17,197		$	43,649	$	17,321		$	557,312

Three Months Ended March 31, 2016	Single Family			Multifamily			Commercial Real Estate - Non-owner Occupied		Commercial Real Estate - Owner-Occupied		Construction and Land  Development			Commercial Business		Consumer and Other			Total
Allowance for loan losses:
Beginning balance	$	1,031		$	1,340		$	1,122	$	530	$	344		$	302	$	78		$	4,747
Provision for loan losses	44			(160		)	99		49		(9		)	113		(11		)	125
Loans charged-off	(30		)	—			—		—		—			—		—			(30		)
Recoveries	13			—			—		1		—			5		2			21
Ending balance	$	1,058		$	1,180		$	1,221	$	580	$	335		$	420	$	69		$	4,863
Period-ended amount allocated for:
Individually evaluated for impairment	$	3		$	—		$	—	$	—	$	—		$	—	$	54		$	57
Collectively evaluated for impairment	1,055			1,180			1,221		580		335			420		15			4,806
Ending balance	$	1,058		$	1,180		$	1,221	$	580	$	335		$	420	$	69		$	4,863
Loans:
Individually evaluated for impairment	$	1,736		$	1,789		$	—	$	—	$	—		$	—	$	92		$	3,617
Collectively evaluated for impairment	150,756			119,351			116,420		49,647		17,250			38,110		18,755			510,289
Ending balance	$	152,492		$	121,140		$	116,420	$	49,647	$	17,250		$	38,110	$	18,847		$	513,906

Schedule of impaired loans

							Three months ended				Six months ended
March 31, 2017	Unpaid Principal Balance		Recorded Investment		Allowance for Loan Losses Allocated		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded:
Single family	$	1,273	$	1,142	$	—	$	1,158	$	12	$	1,257	$	25
Multifamily	1,733		1,699		—		1,711		18		1,722		36
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	4		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	113		35		—		35		—		35		—
With an allowance recorded:
Single family	272		272		2		273		4		182		9
Multifamily	—		—		—		—		—		—		—
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	51		51		51		51		1		51		1
	$	3,446	$	3,199	$	53	$	3,228	$	35	$	3,247	$	71

							Three months ended				Six months ended
March 31, 2016	Unpaid Principal Balance		Recorded Investment		Allowance for Loan Losses Allocated		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded:
Single family	$	1,573	$	1,425	$	—	$	1,310	$	14	$	1,267	$	28
Multifamily	1,854		1,789		—		1,803		19		1,812		38
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	116		38		—		39		—		82		—
With an allowance recorded:
Single family	311		311		3		361		3		378		7
Multifamily	—		—		—		—		—		—		—
Commercial real estate non-owner occupied	—		—		—		—		—		—		—
Commercial real estate owner occupied	—		—		—		—		—		—		—
Construction and land development	—		—		—		—		—		—		—
Commercial business	—		—		—		—		—		—		—
Consumer and other	54		54		54		55		1		55		2
	$	3,908	$	3,617	$	57	$	3,568	$	37	$	3,594	$	75

Schedule of loans modified in a TDR, by class

Schedule of Loans and Leases Receivable, Related Parties

An analysis of such loans is as follows:

	Six Months Ended March 31, 2017
Balance, beginning	$	7,813
New loans originated	2,728
Draws on lines of credit	52
Principal repayments	(694		)
Balance, ending	$	9,899

Past due loans

Loans

Schedule of recorded investment by accrual status

The following table presents the recorded investment in nonaccrual loans by class of loans as of March 31, 2017 and September 30, 2016:

	March 31, 2017		September 30, 2016
Single family	$	381	$	338
Multifamily	—		—
Commercial real estate non-owner occupied	—		—
Commercial real estate owner occupied	—		—
Construction and land development	—		—
Commercial business	—		—
Consumer and other:
Home equity lines of credit	35		36
Education	99		188
Other	—		—
	$	515	$	562

Troubled debt restructurings

Loans

Schedule of recorded investment by accrual status

The following is a summary of troubled debt restructured loans (TDRs) at March 31, 2017 and September 30, 2016:

	March 31, 2017		September 30, 2016
Troubled debt restructurings - accrual	$	2,691	$	3,021
Troubled debt restructurings - nonaccrual	—		—
	$	2,691	$	3,021

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Deposits (Tables)

6 Months Ended

Mar. 31, 2017

Deposits [Abstract]

Schedule of composition of deposits

The following table presents the composition of deposits as of:

	March 31, 2017				September 30, 2016
	Amount		Percent		Amount		Percent
Checking Accounts:
Noninterest bearing	$	116,162	18.00	%	$	111,841	18.89	%
Interest bearing	142,311		22.05	%	135,866		22.95	%
	258,473		40.05	%	247,707		41.84	%
Passbook and Statement Savings	138,778		21.51	%	133,155		22.50	%
Variable Rate Money Market Accounts	70,094		10.86	%	64,593		10.91	%
Certificates of Deposit	177,968		27.58	%	146,522		24.75	%
	$	645,313	100.00	%	$	591,977	100.00	%

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Borrowings (Tables)

6 Months Ended

Mar. 31, 2017

Borrowings [Abstract]

Schedule of Debt Instruments [Table Text Block]

Borrowings were as follows as of March 31, 2017 and September 30, 2016:

	March 31, 2017				September 30, 2016
	Amount		Weighted Average Cost		Amount		Weighted Average Cost
FHLB advances:
Overnight advances	$	—	—	%	$	—	—	%
Long-term advances by year of maturity:
Year ended September 30, 2019	4,000		0.89		4,000		0.94
Year ended September 30, 2020	3,000		1.10		3,000		1.16
Year ended September 30, 2021	3,000		1.29		3,000		1.34
Year ended September 30, 2022	4,000		0.89		4,000		0.84
Year ended September 30, 2023	4,000		0.99		4,000		0.93
Year ended September 30, 2024	2,000		1.10		2,000		1.04
Total long-term FHLB advances	$	20,000	1.02	%	$	20,000	1.02	%
Line of credit	—		—		—		—

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Regulatory Capital (Tables)

6 Months Ended

Mar. 31, 2017

Regulatory Capital Requirements [Abstract]

Schedule of actual capital amounts and ratios and those required by the above regulatory standards

The Bank’s actual capital amounts and ratios and those required by the regulatory standards are presented in the following tables. With respect to the capital conservation buffer, we have included the 1.250% increase for 2017 and the 0.625% increase for 2016 in our minimum capital adequacy ratios in the tables below.

At March 31, 2017	Actual				For Capital Adequacy Purposes Under Prompt Corrective Action Provisions				For Capital Adequacy Purposes with Capital Buffer				To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
CETI capital (to risk-weighted assets) - Westbury Bank	$	72,685	11.95	%	$	27,363	4.50	%	$	34,963	5.750	%	$	39,524	6.50	%
Tier 1 capital (to risk-weighted assets) - Westbury Bank	72,685		11.95	%	36,483		6.00	%	44,084		7.250	%	48,644		8.00	%
Total capital (to risk-weighted assets) - Westbury Bank	78,245		12.87	%	48,644		8.00	%	56,245		9.250	%	60,806		10.00	%
Leverage (to adjusted total assets) - Westbury Bank	72,685		10.03	%	28,987		4.00	%	N/A		N/A		36,234		5.00	%

At September 30, 2016	Actual				For Capital Adequacy Purposes Under Prompt Corrective Action Provisions				For Capital Adequacy Purposes with Capital Buffer				To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
CET1 capital (to risk-weighted assets) - Westbury Bank	$	71,383	12.61	%	$	25,472	4.50	%	$	29,010	5.125	%	$	36,793	6.50	%
Tier 1 capital (to risk-weighted assets) - Westbury Bank	71,383		12.61	%	33,963		6.00	%	37,500		6.625	%	45,283		8.00	%
Total capital (to risk-weighted assets) - Westbury Bank	76,627		13.54	%	45,283		8.00	%	48,821		8.625	%	56,604		10.00	%
Leverage (to adjusted total assets) - Westbury Bank	71,383		10.23	%	27,911		4.00	%	N/A		N/A		34,889		5.00	%

Schedule of reconciliation of the Bank's stockholders' equity to regulatory capital

he following table reconciles the Bank’s stockholder's equity to regulatory capital as of March 31, 2017 and September 30, 2016:

	March 31, 2017			September 30, 2016
Stockholder's equity of the Bank	$	73,129		$	73,332
Less: Unrealized (gain) loss on securities	997			(561		)
Disallowed deferred tax assets	(1,441		)	(1,388		)
Tier 1, CETI and leverage capital	72,685			71,383
Plus: Allowable general valuation allowances	5,560			5,244
Total capital	$	78,245		$	76,627

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Commitments (Tables)

6 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of financial instruments whose contract amounts represent credit risk

	March 31, 2017		September 30, 2016
Commitments to extend commercial and residential mortgage credit:
Fixed rate	$	909	$	2,013
Adjustable rate	5,992		1,442
Unused commercial loan lines of credit	100,390		68,752
Unused home equity line of credit	28,083		27,315
Standby letters of credit	1,619		1,076
Commitment to sell loans	277		1,881

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Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities measured at fair value on a recurring basis

The following table summarizes financial instruments measured at fair value on a recurring basis, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value as of:

			Fair Value Measurements
March 31, 2017	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale
U.S. Government and agency securities	$	25	$	—	$	25	$	—
U.S. Government agency residential mortgage-backed securities	51,103		—		51,103		—
U.S. Government agency collateralized mortgage obligations	5,606		—		5,606		—
U.S. Government agency commercial mortgage-backed securities	15,419		—		15,419		—
Municipal securities-tax exempt	30,340		—		30,340		—
Municipal securities-taxable	12,715		—		12,715		—
Total securities available-for-sale	$	115,208	$	—	$	115,208	$	—
Derivatives	$	—	$	—	$	—	$	—
Liabilities
Derivatives	$	—	$	—	$	—	$	—

			Fair Value Measurements
September 30, 2016	Total		Quoted Prices in Active Markets  for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale
U.S. Government and agency securities	$	25	$	—	$	25	$	—
U.S. Government agency residential mortgage-backed securities	40,750		—		40,750		—
U.S. Government agency collateralized mortgage obligations	2,680		—		2,680		—
U.S. Government agency commercial mortgage-backed securities	11,526		—		11,526		—
Municipal securities-tax exempt	25,682		—		25,682		—
Municipal securities-taxable	13,109		—		13,109		—
Total securities available-for-sale	$	93,772	$	—	$	93,772	$	—
Derivatives	$	98	$	—	$	98	$	—
Liabilities
Derivatives	$	98	$	—	$	98	$	—

Schedule of assets measured at fair value on a nonrecurring basis

			Fair Value Measurements
March 31, 2017	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Impaired loans	$	270	$	—	$	—	$	270
Foreclosed real estate	—		—		—		—
Mortgage servicing rights	834		—		—		834

			Fair Value Measurements
September 30, 2016	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Assets
Impaired loans	$	—	$	—	$	—	$	—
Foreclosed real estate	99		—		—		99
Mortgage servicing rights	800		—		—		800

Schedule of estimated fair values and related carrying amounts of the entity's financial instruments

The estimated fair values and related carrying amounts of the Company’s financial instruments as of the dates noted below were as follows:

	March 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	44,086	$	44,086	$	44,086	$	—	$	—
Securities available for sale	115,208		115,208		—		115,208		—
Securities held to maturity	2,293		2,324		—		2,324		—
Loans held for sale, net	277		277		—		277		—
Loans, net	551,611		547,751		—		—		547,751
Federal Home Loan Bank stock	1,301		1,301		—		—		1,301
Mortgage servicing rights	834		834		—		—		834
Accrued interest receivable	2,351		2,351		2,351		—		—
Derivative asset	—		—		—		—		—
Financial liabilities:
Deposits	645,313		608,173		116,162		—		492,011
Short-term advances from Federal Home Loan Bank	—		—		—		—		—
Long-term advances from Federal Home Loan Bank	20,000		18,734		—		—		18,734
Advance payments by borrowers for property taxes and insurance	1,818		1,818		1,818		—		—
Accrued interest payable	6		6		6		—		—
Derivative liability	—		—		—		—		—

	September 30, 2016
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	29,613	$	29,613	$	29,613	$	—	$	—
Securities available for sale	93,772		93,772		—		93,772		—
Securities held to maturity	2,293		2,392		—		2,392		—
Loans held for sale, net	1,881		1,881		—		1,881		—
Loans, net	533,759		536,434		—		—		536,434
Federal Home Loan Bank stock	1,330		1,330		—		—		1,330
Mortgage servicing rights	800		800		—		—		800
Accrued interest receivable	2,173		2,173		2,173		—		—
Derivative asset	98		98		—		98		—
Financial liabilities:
Deposits	591,977		574,787		111,841		—		462,946
Short-term advances from Federal Home Loan Bank	—		—		—		—		—
Long-term advances from Federal Home Loan Bank	20,000		19,472		—		—		19,472
Advance payments by borrowers for property taxes and insurance	5,455		5,455		5,455		—		—
Accrued interest payable	5		5		5		—		—
Derivative liability	98		98		—		98		—

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Employee Stock Ownership Plan Disclosure of (Tables)

6 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Employee Stock Ownership Plan (ESOP) Disclosures

The ESOP shares as of March 31, 2017 and September 30, 2016 were as follows (in thousands, except share data):

	March 31, 2017		September 30, 2016
Allocated shares to active participants	93,754		52,773
Shares committed to be released	10,285		30,855
Unallocated shares	298,268		318,838
Total ESOP shares	402,307		402,466
Fair value of unallocated shares	$	6,210	$	6,227

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Compensation Equity Plans (Tables)

6 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Allocation of Share-based Compensation Costs by Plan

The following table summarizes the impact of the Company's share-based payment plans in the financial statements for the periods shown:

	Three Months Ended March 31,				Six Months Ended March 31,
	2017		2016		2017		2016
Total cost of stock grant plan during the period	$	146	$	151	$	280	$	302
Total cost of stock option plan during the period	67		58		131		115
Total cost of share-based payment plans during the period	$	213	$	209	$	411	417
Amount of related income tax benefit recognized in income	$	84	$	82	$	161	$	164

Schedule of Stock Options Activity

The following table summarizes stock options outstanding for the three and six months ended March 31, 2017:

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding as of December 31, 2016	464,185	$	16.49
Granted	—	—
Exercised	5,896	15.49
Expired or canceled	300	17.43
Forfeited	3,826	15.20
Options outstanding as of March 31, 2017	454,163	$	16.52	7.82	$	1,953
Options exercisable as of March 31, 2017	131,373	$	15.48	7.37	$	701

Schedule of Stock Options Valuation Assumptions

The following assumptions were used for options granted during the six months ended March 31:

	2017			2016
Risk-free interest rate	2.19		%	1.71		%
Expected volatility of Company's stock	15.74		%	7.73		%
Expected dividend yield	—		%	—		%
Expected life of options (years)	7.5			7.5
Weighted average fair value per option of options granted during the period	$	5.14		$	2.76

Schedule of Restricted Stock Units Award Activity

The following is a summary of changes in restricted shares for the three and six months ended March 31, 2017:

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at December 31, 2016	118,105	$	15.60
Granted	—	—
Vested	1,222	15.20
Forfeited	2,444	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

	Number of Shares	Weighted Average Grant Date Fair Value
Shares Outstanding at September 30, 2016	114,883	$	15.20
Granted	7,500	21.50
Vested	1,222	15.20
Forfeited	6,722	15.20
Shares Outstanding at March 31, 2017	114,439	$	15.61

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Condensed Parent Company Financial Information (Tables)

6 Months Ended

Mar. 31, 2017

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Balance Sheet

The condensed financial statements of Westbury Bancorp, Inc. (parent company only) are presented for the periods indicated below:

Balance Sheets
	March 31,		September 30,
	2017		2016
Assets
Cash and interest bearing deposits	$	137	$	251
Investments	41		55
Loan to ESOP	3,094		3,620
Investment in subsidiary	75,247		75,872
Other assets	2,700		2,397
Total assets	$	81,219	$	82,195
Liabilities and Stockholders' Equity
Total liabilities	$	20	$	26
Stockholders' equity	81,199		82,169
Total liabilities and stockholders' equity	$	81,219	$	82,195

Condensed Income Statement

Statements of Operations
	Three Months Ended March 31,						Six Months Ended March 31,
	2017			2016			2017			2016
Interest and other income	$	30		$	33		$	62		$	65
Interest and other expense	174			130			316			251
Loss before income tax benefit and equity in undistributed net income of subsidiary	(144		)	(97		)	(254		)	(186		)
Income tax benefit	(39		)	(21		)	(65		)	(39		)
Loss before equity in undistributed net income of subsidiary	(105		)	(76		)	(189		)	(147		)
Equity in undistributed net income of subsidiary	851			949			1,682			2,059
Net income	$	746		$	873		$	1,493		$	1,912

Condensed Cash Flow Statement

Statements of Cash Flows
	For Six Months Ended March 31,
	2017			2016
Cash Flows From Operating Activities
Net income	$	1,493		$	1,912
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Equity in undistributed net income of subsidiary	(1,682		)	(2,059		)
Net change in other liabilities	(6		)	(56		)
Net change in other assets	108			693
Net cash provided by (used in) operating activities	(87		)	490
Cash Flows From Investing Activities
Sales and maturities of securities	14			40
Payments received on ESOP loan	526			158
Dividend received from bank subsidiary	750			2,000
Net cash provided by investing activities	1,290			2,198
Cash Flows From Financing Activities
Stock options exercised	92			64
Repurchase of common stock	(1,409		)	(3,242		)
Net cash used in financing activities	(1,317		)	(3,178		)
Net decrease in cash	(114		)	(490		)
Cash
Beginning of period	251			1,440
End of period	$	137		$	950

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Net income	$ 746	$ 873	$ 1,493	$ 1,912
Basic potential common shares:
Weighted average shares outstanding (in shares)	3,936,596	4,073,133	3,955,400	4,118,040
Weighted average unallocated ESOP shares (in shares)	(305,130)	(346,266)	(310,329)	(349,713)
Basic weighted average shares outstanding (in shares)	3,631,466	3,726,867	3,645,071	3,768,327
Dilutive potential common shares (in shares)	99,009	53,290	90,125	47,662
Diluted weighted average shares outstanding (in shares)	3,730,475	3,780,157	3,735,196	3,815,989
Basic loss per share (in dollars per share)	$ 0.21	$ 0.23	$ 0.41	$ 0.51
Diluted loss per share (in dollars per share)	$ 0.20	$ 0.23	$ 0.40	$ 0.50

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Investment Securitites (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Available for Sale
Amortized Cost	$ 116,847	$ 92,849
Gross Unrealized Gains	236	1,088
Gross Unrealized Losses	(1,875)	(165)
Fair Value	115,208	93,772
Held to Maturity
Amortized Cost	2,293	2,293
Fair Value	2,324	2,392
Total Investment Securities
Amortized Cost	119,140	95,142
Gross Unrealized Gains	268	1,187
Gross Unrealized Losses	(1,876)	(165)
Fair Value	117,532	96,164
U.S. Government and agency securities
Available for Sale
Amortized Cost	25	24
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	25	25
U.S. Government agency residential mortgage-backed securities
Available for Sale
Amortized Cost	51,780	40,289
Gross Unrealized Gains	132	504
Gross Unrealized Losses	(809)	(43)
Fair Value	51,103	40,750
U.S. Government agency collateralized mortgage obligations
Available for Sale
Amortized Cost	5,708	2,674
Gross Unrealized Gains	11	24
Gross Unrealized Losses	(113)	(18)
Fair Value	5,606	2,680
U.S. Government agency commercial mortgage-backed securities
Available for Sale
Amortized Cost	15,452	11,376
Gross Unrealized Gains	20	150
Gross Unrealized Losses	(53)	0
Fair Value	15,419	11,526
Municipal securities-tax exempt
Available for Sale
Amortized Cost	31,147	25,730
Gross Unrealized Gains	30	51
Gross Unrealized Losses	(837)	(99)
Fair Value	30,340	25,682
Held to Maturity
Amortized Cost	2,293	2,293
Gross Unrealized Gains	32	99
Gross Unrealized Losses	(1)	0
Fair Value	2,324	2,392
Municipal securities-taxable
Available for Sale
Amortized Cost	12,735	12,756
Gross Unrealized Gains	43	358
Gross Unrealized Losses	(63)	(5)
Fair Value	$ 12,715	$ 13,109

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Investment Securitites (Details 2) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Sep. 30, 2016
Available for Sale, Amortized Cost
Due in one year or less	$ 920,000		$ 920,000
Due after one year through five years	13,677,000		13,677,000
Due after five years through ten years	23,609,000		23,609,000
Due after ten years	5,701,000		5,701,000
Total	116,847,000		116,847,000
Available for Sale, Fair Value
Due in one year or less	922,000		922,000
Due after one year through five years	13,654,000		13,654,000
Due after five years through ten years	22,952,000		22,952,000
Due after ten years	5,552,000		5,552,000
Fair Value	115,208,000		115,208,000		$ 93,772,000
Other disclosures
Proceeds from sales of securities available-for-sale	0	$ 3,521,000	829,000	$ 8,740,000
Gross realized gains on the sale of securities available-for-sale	0	11,000	4,000	23,000
Gross realized losses on the sale of securities available-for-sale	0	$ 2,000	0	$ 12,000
Securities pledged to secure treasury, tax, and loan deposits and other purposes	35,741,000		35,741,000		24,364,000
Held to maturity, Amortized Cost
Due in one year or less	168,000		168,000
Due after one year through five years	703,000		703,000
Due after five years through ten years	982,000		982,000
Due after five years through ten years	440,000		440,000
Amortized Cost	2,293,000		2,293,000		2,293,000
Amortized Cost	119,140,000		119,140,000
Held to maturity, Fair Value
Due in one year or less	168,000		168,000
Due after one year through five years	705,000		705,000
Due after five years through ten years	999,000		999,000
Due after ten years	452,000		452,000
Fair Value	2,324,000		2,324,000		2,392,000
Investment Securities	117,532,000		117,532,000		96,164,000
U.S. Government agency collateralized mortgage obligations
Available for Sale, Amortized Cost
U.S. Government agency securities	5,708,000		5,708,000
Available for Sale, Fair Value
U.S. Government agency securities	5,606,000		5,606,000
Fair Value	5,606,000		5,606,000		2,680,000
U.S. Government agency residential mortgage-backed securities
Available for Sale, Amortized Cost
U.S. Government agency securities	51,780,000		51,780,000
Available for Sale, Fair Value
U.S. Government agency securities	51,103,000		51,103,000
Fair Value	51,103,000		51,103,000		40,750,000
U.S. Government agency commercial mortgage-backed securities
Available for Sale, Amortized Cost
U.S. Government agency securities	15,452,000		15,452,000
Available for Sale, Fair Value
U.S. Government agency securities	15,419,000		15,419,000
Fair Value	$ 15,419,000		$ 15,419,000		$ 11,526,000

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Investment Securitites (Details 3) $ in Thousands	Mar. 31, 2017 USD ($) security	Sep. 30, 2016 USD ($) security
Total temporary impaired securities
Less than 12 months, Fair Value	$ 81,017	$ 21,590
Less than 12 months, Unrealized Losses	(1,794)	(109)
12 months or longer, Fair Value	3,209	3,596
12 months or longer, Unrealized Losses	(81)	(56)
Total, Fair Value	84,226	25,186
Total, Unrealized Losses	$ (1,875)	$ (165)
Number of securities in an unrealized loss position, greater than twelve months | security	5	5
Number of securities in an unrealized loss position, less than twelve months | security	135	58
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security	2
Investment Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 81,362	$ 21,590
Investment Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,795)	(109)
Investment Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	3,209	3,596
Investment Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(81)	(56)
Investment Securities, Continuous Unrealized Loss Position, Fair Value	84,571	25,186
Investment Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,876)	(165)
U.S. Government and agency securities
Total temporary impaired securities
Less than 12 months, Fair Value	0	0
Less than 12 months, Unrealized Losses	0	0
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	0	0
Total, Unrealized Losses	0	0
U.S. Government agency residential mortgage-backed securities
Total temporary impaired securities
Less than 12 months, Fair Value	36,078	2,726
Less than 12 months, Unrealized Losses	(762)	(5)
12 months or longer, Fair Value	2,697	3,020
12 months or longer, Unrealized Losses	(47)	(38)
Total, Fair Value	38,775	5,746
Total, Unrealized Losses	(809)	(43)
U.S. Government agency collateralized mortgage obligations
Total temporary impaired securities
Less than 12 months, Fair Value	2,497	0
Less than 12 months, Unrealized Losses	(79)	0
12 months or longer, Fair Value	512	576
12 months or longer, Unrealized Losses	(34)	(18)
Total, Fair Value	3,009	576
Total, Unrealized Losses	(113)	(18)
U.S. Government agency commercial mortgage-backed securities
Total temporary impaired securities
Less than 12 months, Fair Value	11,603	0
Less than 12 months, Unrealized Losses	(53)	0
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	11,603	0
Total, Unrealized Losses	(53)	0
Municipal securities-tax exempt
Total temporary impaired securities
Less than 12 months, Fair Value	24,748	18,314
Less than 12 months, Unrealized Losses	(837)	(99)
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	24,748	18,314
Total, Unrealized Losses	(837)	(99)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	345	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	345	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1)	0
Municipal securities-taxable
Total temporary impaired securities
Less than 12 months, Fair Value	6,091	550
Less than 12 months, Unrealized Losses	(63)	(5)
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	6,091	550
Total, Unrealized Losses	$ (63)	$ (5)

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Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015
Loans
Loans	$ 557,312		$ 539,141	$ 513,906
Less: Net deferred loan fees	141		138
Less: Allowance for loan losses	5,560	$ 5,451	5,244	4,863	$ 4,747	$ 4,598
Net loans	551,611		533,759
Real Estate
Loans
Loans	496,342		479,473
Single family
Loans
Loans	160,989		158,541	152,492
Less: Allowance for loan losses	930	923	980	1,058	1,031	1,073
Multifamily
Loans
Loans	117,384		123,623	121,140
Less: Allowance for loan losses	856	983	1,015	1,180	1,340	1,013
Non-owner occupied
Loans
Loans	127,238		117,971	116,420
Less: Allowance for loan losses	1,485	1,584	1,519	1,221	1,122	1,091
Owner occupied
Loans
Loans	73,534		63,108	49,647
Less: Allowance for loan losses	1,138	942	813	580	530	513
Construction and land development
Loans
Loans	17,197		16,230	17,250
Less: Allowance for loan losses	339	403	344	335	344	330
Commercial business
Loans
Loans	43,649		40,836	38,110
Less: Allowance for loan losses	743	544	500	420	302	498
Consumer
Loans
Loans	17,321		18,832	18,847
Less: Allowance for loan losses	69	$ 72	73	$ 69	$ 78	$ 80
Home equity lines of credit
Loans
Loans	13,836		14,969
Education
Loans
Loans	3,108		3,401
Other
Loans
Loans	$ 377		$ 462

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Loans (Details 2) - USD ($)	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016
Contractual aging of the recorded investment in past due loans
Current	$ 555,974,000	$ 538,177,000
Total Loans	557,312,000	539,141,000	$ 513,906,000
Troubled debt restructurings - accrual	0	0
Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	515,000	562,000
Single family
Contractual aging of the recorded investment in past due loans
Current	159,825,000	157,803,000
Total Loans	160,989,000	158,541,000	152,492,000
Single family | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	381,000	338,000
Multifamily
Contractual aging of the recorded investment in past due loans
Current	117,384,000	123,623,000
Total Loans	117,384,000	123,623,000	121,140,000
Multifamily | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	0	0
Non-owner occupied
Contractual aging of the recorded investment in past due loans
Current	127,238,000	117,971,000
Total Loans	127,238,000	117,971,000	116,420,000
Non-owner occupied | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	0	0
Owner occupied
Contractual aging of the recorded investment in past due loans
Current	73,534,000	63,108,000
Total Loans	73,534,000	63,108,000	49,647,000
Owner occupied | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	0	0
Construction and land development
Contractual aging of the recorded investment in past due loans
Current	17,197,000	16,230,000
Total Loans	17,197,000	16,230,000	17,250,000
Construction and land development | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	0	0
Commercial business
Contractual aging of the recorded investment in past due loans
Current	43,649,000	40,836,000
Total Loans	43,649,000	40,836,000	$ 38,110,000
Commercial business | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	0	0
Home equity lines of credit
Contractual aging of the recorded investment in past due loans
Current	13,809,000	14,942,000
Total Loans	13,836,000	14,969,000
Home equity lines of credit | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	35,000	36,000
Education
Contractual aging of the recorded investment in past due loans
Current	2,961,000	3,202,000
Total Loans	3,108,000	3,401,000
Education | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	99,000	188,000
Other
Contractual aging of the recorded investment in past due loans
Current	377,000	462,000
Total Loans	377,000	462,000
Other | Past due loans
Contractual aging of the recorded investment in past due loans
Recorded investment in nonaccrual loans	0	0
Financing Receivables, 60 to 89 Days Past Due
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	39,000	465,000
Financing Receivables, 60 to 89 Days Past Due | Single family
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	426,000
Financing Receivables, 60 to 89 Days Past Due | Multifamily
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due | Non-owner occupied
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due | Owner occupied
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due | Construction and land development
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due | Commercial business
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due | Home equity lines of credit
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due | Education
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	39,000	39,000
Financing Receivables, 60 to 89 Days Past Due | Other
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	847,000	250,000
Financing Receivables, 30 to 59 Days Past Due | Single family
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	799,000	239,000
Financing Receivables, 30 to 59 Days Past Due | Multifamily
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due | Non-owner occupied
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due | Owner occupied
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due | Construction and land development
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due | Commercial business
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due | Home equity lines of credit
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due | Education
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	48,000	11,000
Financing Receivables, 30 to 59 Days Past Due | Other
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	452,000	249,000
Financing Receivables, Equal to Greater than 90 Days Past Due | Single family
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	365,000	73,000
Financing Receivables, Equal to Greater than 90 Days Past Due | Multifamily
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due | Non-owner occupied
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due | Owner occupied
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due | Construction and land development
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial business
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due | Home equity lines of credit
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	27,000	27,000
Financing Receivables, Equal to Greater than 90 Days Past Due | Education
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	60,000	149,000
Financing Receivables, Equal to Greater than 90 Days Past Due | Other
Contractual aging of the recorded investment in past due loans
Financing Receivable, Recorded Investment, Past Due	$ 0	$ 0

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Loans (Details 3) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016
Risk category of loans evaluated by internal asset classification
Total	$ 557,312	$ 539,141	$ 513,906
Single family
Risk category of loans evaluated by internal asset classification
Total	160,989	158,541	152,492
Multifamily
Risk category of loans evaluated by internal asset classification
Total	117,384	123,623	121,140
Non-owner occupied
Risk category of loans evaluated by internal asset classification
Total	127,238	117,971	116,420
Owner occupied
Risk category of loans evaluated by internal asset classification
Total	73,534	63,108	49,647
Construction and land development
Risk category of loans evaluated by internal asset classification
Total	17,197	16,230	17,250
Commercial business
Risk category of loans evaluated by internal asset classification
Total	43,649	40,836	$ 38,110
Home equity lines of credit
Risk category of loans evaluated by internal asset classification
Total	13,836	14,969
Education
Risk category of loans evaluated by internal asset classification
Total	3,108	3,401
Other
Risk category of loans evaluated by internal asset classification
Total	377	462
Pass
Risk category of loans evaluated by internal asset classification
Total	539,927	521,435
Pass | Single family
Risk category of loans evaluated by internal asset classification
Total	158,778	156,042
Pass | Multifamily
Risk category of loans evaluated by internal asset classification
Total	115,685	121,878
Pass | Non-owner occupied
Risk category of loans evaluated by internal asset classification
Total	126,182	116,880
Pass | Owner occupied
Risk category of loans evaluated by internal asset classification
Total	70,499	59,993
Pass | Construction and land development
Risk category of loans evaluated by internal asset classification
Total	17,196	16,228
Pass | Commercial business
Risk category of loans evaluated by internal asset classification
Total	34,359	31,677
Pass | Home equity lines of credit
Risk category of loans evaluated by internal asset classification
Total	13,743	14,874
Pass | Education
Risk category of loans evaluated by internal asset classification
Total	3,108	3,401
Pass | Other
Risk category of loans evaluated by internal asset classification
Total	377	462
Watch
Risk category of loans evaluated by internal asset classification
Total	10,960	15,244
Watch | Single family
Risk category of loans evaluated by internal asset classification
Total	605	744
Watch | Multifamily
Risk category of loans evaluated by internal asset classification
Total	1,699	1,745
Watch | Non-owner occupied
Risk category of loans evaluated by internal asset classification
Total	1,056	695
Watch | Owner occupied
Risk category of loans evaluated by internal asset classification
Total	2,207	3,115
Watch | Construction and land development
Risk category of loans evaluated by internal asset classification
Total	0	0
Watch | Commercial business
Risk category of loans evaluated by internal asset classification
Total	5,393	8,945
Watch | Home equity lines of credit
Risk category of loans evaluated by internal asset classification
Total	0	0
Watch | Education
Risk category of loans evaluated by internal asset classification
Total	0	0
Watch | Other
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention
Risk category of loans evaluated by internal asset classification
Total	0	610
Special Mention | Single family
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention | Multifamily
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention | Non-owner occupied
Risk category of loans evaluated by internal asset classification
Total	0	396
Special Mention | Owner occupied
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention | Construction and land development
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention | Commercial business
Risk category of loans evaluated by internal asset classification
Total	0	214
Special Mention | Home equity lines of credit
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention | Education
Risk category of loans evaluated by internal asset classification
Total	0	0
Special Mention | Other
Risk category of loans evaluated by internal asset classification
Total	0	0
Substandard
Risk category of loans evaluated by internal asset classification
Total	6,425	1,852
Substandard | Single family
Risk category of loans evaluated by internal asset classification
Total	1,606	1,755
Substandard | Multifamily
Risk category of loans evaluated by internal asset classification
Total	0	0
Substandard | Non-owner occupied
Risk category of loans evaluated by internal asset classification
Total	0	0
Substandard | Owner occupied
Risk category of loans evaluated by internal asset classification
Total	828	0
Substandard | Construction and land development
Risk category of loans evaluated by internal asset classification
Total	1	2
Substandard | Commercial business
Risk category of loans evaluated by internal asset classification
Total	3,897	0
Substandard | Home equity lines of credit
Risk category of loans evaluated by internal asset classification
Total	93	95
Substandard | Education
Risk category of loans evaluated by internal asset classification
Total	0	0
Substandard | Other
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Single family
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Multifamily
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Non-owner occupied
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Owner occupied
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Construction and land development
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Commercial business
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Home equity lines of credit
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Education
Risk category of loans evaluated by internal asset classification
Total	0	0
Doubtful | Other
Risk category of loans evaluated by internal asset classification
Total	$ 0	$ 0

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Loans (Details 4) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016
Allowance for loan losses
Balance, beginning	$ 5,451	$ 4,747	$ 5,244	$ 4,598
Provision for loan losses	100	125	300	275
Loans charge-off	0	(30)	0	(40)
Recoveries	9	21	16	30
Balance, ending	5,560	4,863	5,560	4,863
Period-ended amount allocated for:
Individually evaluated for impairment					$ 53		$ 57
Collectively evaluated for impairment					5,507		4,806
Ending Balance	5,451	4,747	5,244	4,598	5,560	$ 5,244	4,863
Loans:
Individually evaluated for impairment					3,199		3,617
Collectively evaluated for impairment					554,113		510,289
Total Loans					557,312	539,141	513,906
Real Estate
Loans:
Total Loans					496,342	479,473
Single family
Allowance for loan losses
Balance, beginning	923	1,031	980	1,073
Provision for loan losses	7	44	(50)	2
Loans charge-off	0	(30)	0	(30)
Recoveries	0	13	0	13
Balance, ending	930	1,058	930	1,058
Period-ended amount allocated for:
Individually evaluated for impairment					2		3
Collectively evaluated for impairment					928		1,055
Ending Balance	923	1,031	980	1,073	930	980	1,058
Loans:
Individually evaluated for impairment					1,414		1,736
Collectively evaluated for impairment					159,575		150,756
Total Loans					160,989	158,541	152,492
Multifamily
Allowance for loan losses
Balance, beginning	983	1,340	1,015	1,013
Provision for loan losses	(127)	(160)	(159)	167
Loans charge-off	0	0	0	0
Recoveries	0	0	0	0
Balance, ending	856	1,180	856	1,180
Period-ended amount allocated for:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					856		1,180
Ending Balance	983	1,340	1,015	1,013	856	1,015	1,180
Loans:
Individually evaluated for impairment					1,699		1,789
Collectively evaluated for impairment					115,685		119,351
Total Loans					117,384	123,623	121,140
Non-owner occupied
Allowance for loan losses
Balance, beginning	1,584	1,122	1,519	1,091
Provision for loan losses	(99)	99	(34)	129
Loans charge-off	0	0	0	0
Recoveries	0	0	0	1
Balance, ending	1,485	1,221	1,485	1,221
Period-ended amount allocated for:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					1,485		1,221
Ending Balance	1,584	1,122	1,519	1,091	1,485	1,519	1,221
Loans:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					127,238		116,420
Total Loans					127,238	117,971	116,420
Owner occupied
Allowance for loan losses
Balance, beginning	942	530	813	513
Provision for loan losses	190	49	319	66
Loans charge-off	0	0	0	0
Recoveries	6	1	6	1
Balance, ending	1,138	580	1,138	580
Period-ended amount allocated for:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					1,138		580
Ending Balance	942	530	813	513	1,138	813	580
Loans:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					73,534		49,647
Total Loans					73,534	63,108	49,647
Construction and land development
Allowance for loan losses
Balance, beginning	403	344	344	330
Provision for loan losses	(64)	(9)	(5)	5
Loans charge-off	0	0	0	0
Recoveries	0	0	0	0
Balance, ending	339	335	339	335
Period-ended amount allocated for:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					339		335
Ending Balance	403	344	344	330	339	344	335
Loans:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					17,197		17,250
Total Loans					17,197	16,230	17,250
Commercial business
Allowance for loan losses
Balance, beginning	544	302	500	498
Provision for loan losses	197	113	236	(87)
Loans charge-off	0	0	0	0
Recoveries	2	5	7	9
Balance, ending	743	420	743	420
Period-ended amount allocated for:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					743		420
Ending Balance	544	302	500	498	743	500	420
Loans:
Individually evaluated for impairment					0		0
Collectively evaluated for impairment					43,649		38,110
Total Loans					43,649	40,836	38,110
Consumer and other
Allowance for loan losses
Balance, beginning	72	78	73	80
Provision for loan losses	(4)	(11)	(7)	(7)
Loans charge-off	0	0	0	(10)
Recoveries	1	2	3	6
Balance, ending	69	69	69	69
Period-ended amount allocated for:
Individually evaluated for impairment					51		54
Collectively evaluated for impairment					18		15
Ending Balance	$ 72	$ 78	$ 73	$ 80	69	73	69
Loans:
Individually evaluated for impairment					86		92
Collectively evaluated for impairment					17,235		18,755
Total Loans					$ 17,321	$ 18,832	$ 18,847

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Loans (Details 5) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Unpaid Principal Balance
Total	$ 3,446	$ 3,908	$ 3,446	$ 3,908
Recorded Investment
Total	3,199	3,617	3,199	3,617
Allowance for Loan Losses Allocated
With an allowance recorded	53	57	53	57
Average Recorded Investment
Total	3,228	3,568	3,247	3,594
Interest Income Recognized
Total	35	37	71	75
Single family
Unpaid Principal Balance
With no related allowance recorded	1,273	1,573	1,273	1,573
With an allowance recorded	272	311	272	311
Recorded Investment
With no related allowance recorded	1,142	1,425	1,142	1,425
With an allowance recorded	272	311	272	311
Allowance for Loan Losses Allocated
With an allowance recorded	2	3	2	3
Average Recorded Investment
With no related allowance recorded	1,158	1,310	1,257	1,267
With an allowance recorded	273	361	182	378
Interest Income Recognized
With no related allowance	12	14	25	28
With related allowance	4	3	9	7
Multifamily
Unpaid Principal Balance
With no related allowance recorded	1,733	1,854	1,733	1,854
With an allowance recorded	0	0	0	0
Recorded Investment
With no related allowance recorded	1,699	1,789	1,699	1,789
With an allowance recorded	0	0	0	0
Allowance for Loan Losses Allocated
With an allowance recorded	0	0	0	0
Average Recorded Investment
With no related allowance recorded	1,711	1,803	1,722	1,812
With an allowance recorded	0	0	0	0
Interest Income Recognized
With no related allowance	18	19	36	38
With related allowance	0	0	0	0
Non-owner occupied
Unpaid Principal Balance
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Allowance for Loan Losses Allocated
With an allowance recorded	0	0	0	0
Average Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Interest Income Recognized
With no related allowance	0	0	0	0
With related allowance	0	0	0	0
Owner occupied
Unpaid Principal Balance
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Allowance for Loan Losses Allocated
With an allowance recorded	0	0	0	0
Average Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Interest Income Recognized
With no related allowance	0	0	0	0
With related allowance	0	0	0	0
Construction and land development
Unpaid Principal Balance
With no related allowance recorded	4	0	4	0
With an allowance recorded	0	0	0	0
Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Allowance for Loan Losses Allocated
With an allowance recorded	0	0	0	0
Average Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Interest Income Recognized
With no related allowance	0	0	0	0
With related allowance	0	0	0	0
Commercial business
Unpaid Principal Balance
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Allowance for Loan Losses Allocated
With an allowance recorded	0	0	0	0
Average Recorded Investment
With no related allowance recorded	0	0	0	0
With an allowance recorded	0	0	0	0
Interest Income Recognized
With no related allowance	0	0	0	0
With related allowance	0	0	0	0
Consumer and other
Unpaid Principal Balance
With no related allowance recorded	113	116	113	116
With an allowance recorded	51	54	51	54
Recorded Investment
With no related allowance recorded	35	38	35	38
With an allowance recorded	51	54	51	54
Allowance for Loan Losses Allocated
With an allowance recorded	51	54	51	54
Average Recorded Investment
With no related allowance recorded	35	39	35	82
With an allowance recorded	51	55	51	55
Interest Income Recognized
With no related allowance	0	0	0	0
With related allowance	$ 1	$ 1	$ 1	$ 2

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Loans (Details 6)	3 Months Ended		6 Months Ended
	Mar. 31, 2017 USD ($) contract	Mar. 31, 2016 USD ($) contract	Mar. 31, 2017 USD ($) contract	Mar. 31, 2016 USD ($) contract	Sep. 30, 2016 USD ($)
Troubled debt restructured loans
Troubled debt restructurings - accrual	$ 0		$ 0		$ 0
Modified Trouble Debt Restructurings
Number of Modifications | contract	0	0	0	0
Unpaid Principal Balance (at end of period)	$ 0	$ 0	$ 0	$ 0
Loans Modified in a Trouble Debt Restructuring [Abstract]
Number of re-defaults of TDR | contract	0	0	0	0
Past due loans
Troubled debt restructured loans
Troubled debt restructurings - accrual	$ 2,691,000		$ 2,691,000		3,021,000
Troubled debt restructurings - nonaccrual	0		0		0
Troubled debt restructurings	$ 2,691,000		$ 2,691,000		$ 3,021,000

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Loans Loans (Details 7) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2017	Sep. 30, 2016
Loans and Leases Receivable, Related Parties [Roll Forward]
Loans outstanding to officers, employees, directors, and their associates	$ 9,899	$ 7,813
Loans and Leases Receivable, Related Parties, Additions	2,728
Loans and Leases Receivable, Related Parties, Amount Drawn Upon During Period	52
Loans and Leases Receivable, Related Parties, Collections	$ (694)

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Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Negotiable order for withdrawal accounts:
Noninterest bearing	$ 116,162	$ 111,841
Interest bearing	142,311	135,866
Gross total	258,473	247,707
Passbook and Statement Savings	138,778	133,155
Variable Rate Money Market Accounts	70,094	64,593
Certificates of Deposit	177,968	146,522
Deposits	$ 645,313	$ 591,977
Negotiable order for withdrawal accounts:
Noninterest bearing (as a percent)	18.00%	18.89%
Interest bearing (as a percent)	22.05%	22.95%
Gross total (as a percent)	40.05%	41.84%
Passbook and Statement Savings (as a percent)	21.51%	22.50%
Variable Rate Money Market Accounts (as a percent)	10.86%	10.91%
Certificates of Deposit (as a percent)	27.58%	24.75%
Deposits (as a percent)	100.00%	100.00%
Certificates of Deposit over one hundred thousand dollars	$ 115,042	$ 89,588
Certificates of Deposit over two hundred fifty thousand dollars	$ 38,674	$ 26,154

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Borrowings (Details) - USD ($)	6 Months Ended
	Mar. 31, 2017	Sep. 30, 2016
Borrowings [Abstract]
Federal Home Loan Bank, Advances, Borrowing Limit, Percentage of Loan Book Value	75.00%
Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt	$ 266,353,000	$ 273,826,000
Long-term advances from Federal Home Loan Bank	$ 20,000,000	20,000,000
Line of Credit Facility, Initiation Date	Jan. 19, 2017
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,000,000
Line of Credit Facility, Interest Rate Description	a rate of one month LIBOR + 2.40%
Long-term Line of Credit	$ 0	$ 0
Line of Credit Facility, Expiration Date	Dec. 31, 2017

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Borrowings Table (Details) - USD ($)	Mar. 31, 2017	Sep. 30, 2016
Schedule of Debt Instruments [Line Items]
Short-term advances from Federal Home Loan Bank	$ 0	$ 0
Overnight advances, Weighted Average Cost	0.00%	0.00%
Long-term FHLB Advances, Maturity, Year ended September 30, 2019	$ 4,000,000	$ 4,000,000
Long-term FHLB Advances, Maturity, Year ended September 30, 2020	3,000,000	3,000,000
Long-term FHLB Advances, Maturity, Year ended September 30, 2021	3,000,000	3,000,000
Long-term FHLB Advances, Maturity, Year ended September 30, 2022	4,000,000	4,000,000
Long-term FHLB Advances, Maturity, Year ended September 30, 2023	4,000,000	4,000,000
Long-term FHLB Advances, Maturity, Year ended September 30, 2024	2,000,000	2,000,000
Long-term advances from Federal Home Loan Bank	$ 20,000,000	$ 20,000,000
Long-term FHLB Advances, Weighted Average Cost, Year ended September 30, 2019	0.89%	0.94%
Long-term FHLB Advances, Weighted Average Cost, Year ended September 30, 2020	1.10%	1.16%
Long-term FHLB Advances, Weighted Average Cost, Year ended September 30, 2021	1.29%	1.34%
Long-term FHLB Advances, Weighted Average Cost, Year ended September 30, 2022	0.89%	0.84%
Long-term FHLB Advances, Weighted Average Cost, Year ended September 30, 2023	0.99%	0.93%
Long-term FHLB Advances, Weighted Average Cost, Year ended September 30, 2024	1.10%	1.04%
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate, Type	1.02%	1.02%
Long-term Line of Credit	$ 0	$ 0
Line of Credit Facility, Interest Rate at Period End	0.00%	0.00%

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Regulatory Capital (Details) - Westbury Bank - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Total capital (to risk-weighted assets), Amount
Actual	$ 78,245	$ 76,627
For Capital Adequacy Purposes	48,644	45,283
For Capital Adequacy Purposes with Capital Buffer	56,245	48,821
To be Well Capitalized Under Prompt Corrective Action Provisions	$ 60,806	$ 56,604
Total capital (to risk-weighted assets), Ratio
Actual (as a percent)	12.87%	13.54%
For Capital Adequacy Purposes (as a percent)	8.00%	8.00%
For Capital Adequacy with Capital Buffer (as a percent)	9.25%	8.625%
To be Well Capitalized Under Prompt Corrective Action Provisions (as a percent)	10.00%	10.00%
Tier 1 capital (to risk-weighted assets), Amount
Actual	$ 72,685	$ 71,383
For Capital Adequacy Purposes	36,483	33,963
For Capital Adequacy Purposes with Capital Buffer	44,084	37,500
To be Well Capitalized Under Prompt Corrective Action Provisions	$ 48,644	$ 45,283
Tier 1 capital (to risk-weighted assets), Ratio
Actual (as a percent)	11.95%	12.61%
For Capital Adequacy Purposes (as a percent)	6.00%	6.00%
For Capital Adequacy with Capital Buffer (as a percent)	7.25%	6.625%
To be Well Capitalized Under Prompt Corrective Action Provisions (as a percent)	8.00%	8.00%
CETI capital (to risk-weighted assets), Amount
Actual	$ 72,685	$ 71,383
For Capital Adequacy Purposes Under Prompt Corrective Action Provisions	27,363	25,472
For Capital Adequacy Purposes with Capital Buffer	34,963	29,010
To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 39,524	$ 36,793
CETI capital (to risk-weighted assets), Ratio
Actual (as a percent)	11.95%	12.61%
For Capital Adequacy Purposes (as a percent)	4.50%	4.50%
For Capital Adequacy with Capital Buffer (as a pecent)	5.75%	5.125%
To Be Well Capitalized Under Prompt Corrective Action Provisions (as a percent)	6.50%	6.50%
Tier 1 capital (to adjusted total assets), Amount
Actual	$ 72,685	$ 71,383
For Capital Adequacy Purposes	28,987	27,911
To be Well Capitalized Under Prompt Corrective Action Provisions	$ 36,234	$ 34,889
Tier 1 capital (to adjusted total assets), Ratio
Actual (as a percent)	10.03%	10.23%
For Capital Adequacy Purposes (as a percent)	4.00%	4.00%
To be Well Capitalized Under Prompt Corrective Action Provisions (as a percent)	5.00%	5.00%

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Regulatory Capital- Stockholders' equity of the Bank (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Mar. 31, 2017	Sep. 30, 2015	Sep. 30, 2016	Mar. 31, 2016
Regulatory Capital
Stockholders' equity	$ 79,080	$ 78,812	$ 79,629	$ 78,608
Westbury Bank
Regulatory Capital
Stockholders' equity	73,129		73,332
Unrealized (gain) loss on securities	997	$ (561)
Disallowed deferred tax assets	(1,441)		(1,388)
Tier 1 and tangible capital	72,685		71,383
Plus: Allowable general valuation allowances	5,560		5,244
Actual	$ 78,245		$ 76,627

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Commitments (Details) - USD ($)	6 Months Ended
	Mar. 31, 2017	Sep. 30, 2016
Financial Instruments with Off-Balance Sheet Risk
Liabilities recorded for company's potential obligations	$ 0	$ 0
Fixed rate commitments to extend mortgage credit
Financial Instruments with Off-Balance Sheet Risk
Financial instruments whose contract amounts represent credit risk	909,000	2,013,000
Adjustable rate commitments to extend mortgage credit
Financial Instruments with Off-Balance Sheet Risk
Financial instruments whose contract amounts represent credit risk	5,992,000	1,442,000
Standby letters of credit
Financial Instruments with Off-Balance Sheet Risk
Financial instruments whose contract amounts represent credit risk	$ 1,619,000	1,076,000
Maximum period of letters of credit primarily issued to support public and private borrowing arrangements	1 year
Commitment to sell loans
Financial Instruments with Off-Balance Sheet Risk
Financial instruments whose contract amounts represent credit risk	$ 277,000	1,881,000
Commercial Loan [Member] | Unused commercial loan lines of credit
Financial Instruments with Off-Balance Sheet Risk
Financial instruments whose contract amounts represent credit risk	100,390,000	68,752,000
Home Equity Loan [Member] | Unused commercial loan lines of credit
Financial Instruments with Off-Balance Sheet Risk
Financial instruments whose contract amounts represent credit risk	$ 28,083,000	$ 27,315,000

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Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2017	Sep. 30, 2016
Assets
Securities available-for-sale	$ 115,208	$ 93,772
U.S. Government and agency securities
Assets
Securities available-for-sale	25	25
U.S. Government agency residential mortgage-backed securities
Assets
Securities available-for-sale	51,103	40,750
U.S. Government agency collateralized mortgage obligations
Assets
Securities available-for-sale	5,606	2,680
U.S. Government agency commercial mortgage-backed securities
Assets
Securities available-for-sale	15,419	11,526
Municipal securities-tax exempt
Assets
Securities available-for-sale	30,340	25,682
Municipal securities-taxable
Assets
Securities available-for-sale	12,715	13,109
Quoted Prices in Active Markets for Identical Assets (Level 1)
Liabilities
Derivatives	$ 0	0
Significant Other Observable Inputs (Level 2)
Assets and liabilities measured at fair value
Period of U.S. Treasury rate	10 years
Assets
Securities available-for-sale	$ 115,208	93,772
Derivatives		98
Liabilities
Derivatives	0	98
Significant Other Unobservable Inputs (Level 3)
Liabilities
Derivatives	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Securities available-for-sale	0	0
Derivatives	0	0
Liabilities
Derivatives	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government and agency securities
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government agency residential mortgage-backed securities
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government agency collateralized mortgage obligations
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal securities-tax exempt
Assets
Securities available-for-sale	0	0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal securities-taxable
Assets
Securities available-for-sale	0
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets
Securities available-for-sale	115,208	93,772
Derivatives	0	98
Liabilities
Derivatives	0	98
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government and agency securities
Assets
Securities available-for-sale	25	25
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government agency residential mortgage-backed securities
Assets
Securities available-for-sale	51,103	40,750
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government agency collateralized mortgage obligations
Assets
Securities available-for-sale	5,606	2,680
Recurring basis | Significant Other Observable Inputs (Level 2) | U.S. Government agency commercial mortgage-backed securities
Assets
Securities available-for-sale	15,419	11,526
Recurring basis | Significant Other Observable Inputs (Level 2) | Municipal securities-tax exempt
Assets
Securities available-for-sale	30,340	25,682
Recurring basis | Significant Other Observable Inputs (Level 2) | Municipal securities-taxable
Assets
Securities available-for-sale	12,715	13,109
Recurring basis | Significant Other Unobservable Inputs (Level 3)
Assets
Securities available-for-sale	0	0
Derivatives	0	0
Liabilities
Derivatives	0	0
Recurring basis | Significant Other Unobservable Inputs (Level 3) | U.S. Government and agency securities
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Other Unobservable Inputs (Level 3) | U.S. Government agency residential mortgage-backed securities
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Other Unobservable Inputs (Level 3) | U.S. Government agency collateralized mortgage obligations
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Other Unobservable Inputs (Level 3) | Municipal securities-tax exempt
Assets
Securities available-for-sale	0	0
Recurring basis | Significant Other Unobservable Inputs (Level 3) | Municipal securities-taxable
Assets
Securities available-for-sale	0
Total
Assets
Securities available-for-sale	115,208	93,772
Derivatives		98
Liabilities
Derivatives	0	98
Total | Recurring basis
Assets
Securities available-for-sale	115,208	93,772
Derivatives	0	98
Liabilities
Derivatives	0	98
Total | Recurring basis | U.S. Government and agency securities
Assets
Securities available-for-sale	25	25
Total | Recurring basis | U.S. Government agency residential mortgage-backed securities
Assets
Securities available-for-sale	51,103	40,750
Total | Recurring basis | U.S. Government agency collateralized mortgage obligations
Assets
Securities available-for-sale	5,606	2,680
Total | Recurring basis | U.S. Government agency commercial mortgage-backed securities
Assets
Securities available-for-sale	15,419	11,526
Total | Recurring basis | Municipal securities-tax exempt
Assets
Securities available-for-sale	30,340	25,682
Total | Recurring basis | Municipal securities-taxable
Assets
Securities available-for-sale	$ 12,715	$ 13,109

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Fair Value Measurements (Details 2) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016
Assets measured at fair value on a nonrecurring basis
Impaired loans, valuation allowance	$ 53		$ 57
Foreclosed real estate	0	$ 99
Significant Other Unobservable Inputs (Level 3)
Assets measured at fair value on a nonrecurring basis
Mortgage servicing rights	834	800
Carrying Amount
Assets measured at fair value on a nonrecurring basis
Mortgage servicing rights	834	800
Total
Assets measured at fair value on a nonrecurring basis
Mortgage servicing rights	834	800
Nonrecurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets measured at fair value on a nonrecurring basis
Impaired loans	0	0
Foreclosed real estate	0	0
Mortgage servicing rights	0	0
Nonrecurring Basis | Significant Other Observable Inputs (Level 2)
Assets measured at fair value on a nonrecurring basis
Impaired loans	0	0
Foreclosed real estate	0	0
Mortgage servicing rights	0	0
Nonrecurring Basis | Significant Other Unobservable Inputs (Level 3)
Assets measured at fair value on a nonrecurring basis
Impaired loans, valuation allowance	53	52
Mortgage servicing rights, valuation allowance	60	212
Impaired loans	270	0
Foreclosed real estate	0	99
Mortgage servicing rights	834	800
Nonrecurring Basis | Carrying Amount | Significant Other Unobservable Inputs (Level 3)
Assets measured at fair value on a nonrecurring basis
Impaired loans	323	52
Mortgage servicing rights	894	1,012
Nonrecurring Basis | Total
Assets measured at fair value on a nonrecurring basis
Impaired loans	270	0
Foreclosed real estate	0	99
Mortgage servicing rights	$ 834	$ 800

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Fair Value Measurements (Details 3) - USD ($)	Mar. 31, 2017	Sep. 30, 2016
Financial assets:
Securities available-for-sale	$ 115,208,000	$ 93,772,000
Securities held to maturity	2,293,000	2,293,000
Federal Home Loan Bank stock	1,301,000	1,330,000
Financial liabilities:
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	20,000,000	20,000,000
Advance payments by borrowers for property taxes and insurance	1,818,000	5,455,000
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	44,086,000	29,613,000
Securities held to maturity	0	0
Accrued interest receivable	2,351,000	2,173,000
Financial liabilities:
Deposits	116,162,000	111,841,000
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	0	0
Advance payments by borrowers for property taxes and insurance	1,818,000	5,455,000
Accrued interest payable	6,000	5,000
Derivative liability	0	0
Significant Other Observable Inputs (Level 2)
Financial assets:
Securities available-for-sale	115,208,000	93,772,000
Securities held to maturity	2,324,000	2,392,000
Loans held for sale, net	277,000	1,881,000
Derivative asset		98,000
Financial liabilities:
Deposits	0	0
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	0	0
Advance payments by borrowers for property taxes and insurance	0	0
Accrued interest payable	0	0
Derivative liability	0	98,000
Significant Other Unobservable Inputs (Level 3)
Financial assets:
Securities held to maturity	0	0
Loans, net	547,751,000	536,434,000
Federal Home Loan Bank stock	1,301,000	1,330,000
Mortgage servicing rights	834,000	800,000
Financial liabilities:
Deposits	492,011,000	462,946,000
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	18,734,000	19,472,000
Advance payments by borrowers for property taxes and insurance	0	0
Accrued interest payable	0	0
Derivative liability	0	0
Carrying Amount
Financial assets:
Cash and cash equivalents	44,086,000	29,613,000
Securities available-for-sale	115,208,000	93,772,000
Securities held to maturity	2,293,000	2,293,000
Loans, net	551,611,000	533,759,000
Loans held for sale, net	277,000	1,881,000
Federal Home Loan Bank stock	1,301,000	1,330,000
Mortgage servicing rights	834,000	800,000
Accrued interest receivable	2,351,000	2,173,000
Derivative asset		98,000
Financial liabilities:
Deposits	645,313,000	591,977,000
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	20,000,000	20,000,000
Advance payments by borrowers for property taxes and insurance	1,818,000	5,455,000
Accrued interest payable	6,000	5,000
Derivative liability	0	98,000
Estimated Fair Value
Financial assets:
Cash and cash equivalents	44,086,000	29,613,000
Securities available-for-sale	115,208,000	93,772,000
Securities held to maturity	2,324,000	2,392,000
Loans, net	547,751,000	536,434,000
Loans held for sale, net	277,000	1,881,000
Federal Home Loan Bank stock	1,301,000	1,330,000
Mortgage servicing rights	834,000	800,000
Accrued interest receivable	2,351,000	2,173,000
Derivative asset		98,000
Financial liabilities:
Deposits	608,173,000	574,787,000
Short-term advances from Federal Home Loan Bank	0	0
Long-term advances from Federal Home Loan Bank	18,734,000	19,472,000
Advance payments by borrowers for property taxes and insurance	1,818,000	5,455,000
Accrued interest payable	6,000	5,000
Derivative liability	$ 0	$ 98,000

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Employee Stock Ownership Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Sep. 30, 2016	Apr. 11, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Stock Ownership Plan (ESOP), Debt Structure, Indirect Loan, Amount							$ 4,100
employee stock ownership plan, price per share							$ 10.00
Employee Stock Ownership Plan (ESOP), Debt Structure, Indirect Loan, Additional Principal Payment					$ 264
ESOP committed-to-be-released shares, during period	10,285	10,285	20,570	15,427
ESOP released and available for allocation shares, during period			10,285	5,142
ESOP compensation expense	$ 214	$ 192	$ 421	$ 283
Allocated shares to active participants	93,754		93,754			52,773
Shares committed to be released	10,285		10,285			30,855
Unallocated shares	298,268		298,268			318,838
Total ESOP shares	402,307		402,307			402,466	411,403
Employee Stock Ownership Plan (ESOP), Percent of total number of shares issued							8.00%
Fair value of unallocated shares	$ 6,210		$ 6,210			$ 6,227

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Compensation Equity Plans Cost of Share-based Payment Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total cost of stock grant plan during the period	$ 146	$ 151	$ 280	$ 302
Total cost of stock option plan during the period	67	58	131	115
Total cost of share-based payment plans during the period	213	209	411	417
Amount of related income tax benefit recognized in income	$ 84	$ 82	$ 161	$ 164

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Compensation Equity Plans Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2017	Mar. 31, 2016
Number of Options
Options outstanding, beginning balance (shares)	464,185	474,132
Granted (shares)	0	2,750
Exercised (shares)	5,896	5,896	4,298
Expired or canceled (shares)	300	450
Forfeited (shares)	3,826	16,373
Options outstanding, ending balance (shares)	454,163	454,163
Options exercisable as of June 30, 2015 (shares)	131,373	131,373
Weighted Average Exercise Price
Options outstanding, beginning balance (in dollars per share)	$ 16.49	$ 16.46
Granted (in dollars per share)	0.00	21.00
Exercised (in dollars per share)	15.49	15.49
Expired or canceled (in dollars per share)	17.43	17.40
Forfeited (in dollars per share)	15.20	15.92
Options outstanding, ending balance (in dollars per share)	16.52	16.52
Options exercisable as of March 31, 2015 (in dollars per share)	$ 15.48	$ 15.48
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, Weighted Average Remaining Contractual Term	7 years 9 months 26 days	7 years 9 months 26 days
Outstanding, Aggregate Intrinsic Value	$ 1,953	$ 1,953
Options Exercisable, Weighted Average Remaining Contractual Term	7 years 4 months 12 days	7 years 4 months 12 days
Options Exercisable, Aggregate Intrinsic Value	$ 701	$ 701

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Compensation Equity Plans Assumptions (Details) - $ / shares	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Risk-free interest rate	2.19%	1.71%
Expected volatility of Company's stock	15.74%	7.73%
Expected dividend yield	0.00%	0.00%
Expected life of options (years)	7 years 6 months	7 years 6 months
Weighted average fair value per option of options granted during the period	$ 5.14	$ 2.76

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Compensation Equity Plans Restricted Shares (Details) - Restricted Shares and Units - $ / shares	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2017
Number of Shares
Shares Outstanding at September 30, 2014	118,105	114,883
Granted	0	7,500
Vested	1,222	1,222
Forfeited	2,444	6,722
Shares Outstanding at June 30, 2015	114,439	114,439
Weighted Average Grant Date Fair Value
Shares Outstanding at September 30, 2014 (in dollars per share)	$ 15.60	$ 15.20
Granted (in dollars per share)	0.00	21.50
Vested (in dollars per share)	15.20	15.20
Forfeited (in dollars per share)	15.20	15.20
Shares Outstanding at March 31, 2015 (in dollars per share)	$ 15.61	$ 15.61

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Compensation Equity Plans Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Feb. 15, 2017	Dec. 31, 2016	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, minimum			5 years
Vesting period, maximum			10 years
Restricted share vesting period			5 years
Intrinsic value of options exercised during the period	$ 36,000	$ 10,000	$ 36,000	$ 10,000
Compensation cost not yet recognized	2,100,000		$ 2,100,000
Period for recognition			2 years 8 months 25 days
Restricted Shares and Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of restricted shares vested during the period	$ 27,000	$ 0	$ 27,000	$ 0
Westbury Bancorp Inc 2014 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized					200,000		509,162
Westbury Bancorp Inc 2014 Equity Incentive Plan | Restricted Shares and Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized					20,000		203,665
Number of shares available for grant-stock grants	27,980		27,980			5,536
Westbury Bancorp Inc 2014 Equity Incentive Plan | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant-stock options	238,910		238,910			34,784

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Condensed Parent Company Financial Information Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and interest bearing deposits	$ 44,086	$ 29,613	$ 16,346	$ 16,488
Other assets	4,339	4,010
Total assets	755,541	702,625
Other liabilities	9,330	5,564
Stockholders' equity	79,080	79,629	$ 78,608	$ 78,812
Liabilities and Equity	755,541	702,625
Parent Company
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and interest bearing deposits	137	251
Investments	41	55
Loan to ESOP	3,094	3,620
Investment in subsidiary	75,247	75,872
Other assets	2,700	2,397
Total assets	81,219	82,195
Other liabilities	20	26
Stockholders' equity	81,199	82,169
Liabilities and Equity	$ 81,219	$ 82,195

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Condensed Parent Company Financial Information Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Condensed Income Statements, Captions [Line Items]
Net income	$ 746	$ 873	$ 1,493	$ 1,912
Parent Company
Condensed Income Statements, Captions [Line Items]
Interest and other income	30	33	62	65
Interest and other expense	174	130	316	251
Loss before income tax benefit and equity in undistributed net income of subsidiary	(144)	(97)	(254)	(186)
Income tax benefit	(39)	(21)	(65)	(39)
Loss before equity in undistributed net income of subsidiary	(105)	(76)	(189)	(147)
Equity in undistributed net income of subsidiary	851	949	1,682	2,059
Net income	$ 746	$ 873	$ 1,493	$ 1,912

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Condensed Parent Company Financial Information Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	$ 746	$ 873	$ 1,493	$ 1,912
Net change in other assets			(329)	(650)
Net cash provided by operating activities			5,506	(955)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of securities			(30,378)	(16,272)
Net cash provided by investing activities			(43,052)	(17,206)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Stock options exercised			92	64
Repurchase of common stock			(1,409)	(3,242)
Net cash used in financing activities			52,019	18,019
Parent Company
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	746	873	1,493	1,912
Equity in undistributed net income of subsidiary	(851)	(949)	(1,682)	(2,059)
Net change in other liabilities			(6)	(56)
Net change in other assets			108	693
Net cash provided by operating activities			(87)	490
Net Cash Provided by (Used in) Investing Activities [Abstract]
Sales and maturities of securities			14	40
Payments received on ESOP loan			526	158
Dividend received from bank subsidiary			750	2,000
Net cash provided by investing activities			1,290	2,198
Net Cash Provided by (Used in) Financing Activities [Abstract]
Stock options exercised			92	64
Repurchase of common stock			(1,409)	(3,242)
Net cash used in financing activities			(1,317)	(3,178)
Net increase in cash			(114)	(490)
Beginning of period			251	1,440
End of period	$ 137	$ 950	$ 137	$ 950