Greene County Bancorp (GCBC) 10-Q 13 Nov 17 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2017	Nov. 13, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	GREENE COUNTY BANCORP INC
Entity Central Index Key	1,070,524
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		8,503,614
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017

Consolidated Statements of Fina

Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
ASSETS
Total cash and cash equivalents	$ 46,419	$ 16,277
Long term certificate of deposit	2,145	2,145
Securities available-for-sale, at fair value	100,809	91,483
Securities held-to-maturity, at amortized cost (fair value $231,860 at September 30, 2017; $228,452 at June 30, 2017)	225,694	223,830
Federal Home Loan Bank stock, at cost	1,575	2,131
Loans	648,693	634,331
Allowance for loan losses	(11,098)	(11,022)
Unearned origination fees and costs, net	851	878
Net loans receivable	638,446	624,187
Premises and equipment	13,559	13,615
Accrued interest receivable	4,374	4,033
Foreclosed real estate	752	799
Prepaid expenses and other assets	3,874	3,791
Total assets	1,037,647	982,291
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing deposits	103,819	95,929
Interest-bearing deposits	813,750	763,606
Total deposits	917,569	859,535
Borrowings from Federal Home Loan Bank, short-term	0	6,900
Borrowings from other banks, short-term	700	0
Borrowings from Federal Home Loan Bank, long-term	20,150	22,650
Accrued expenses and other liabilities	12,373	9,685
Total liabilities	950,792	898,770
SHAREHOLDERS' EQUITY
Preferred stock, Authorized - 1,000,000 shares; Issued - None	0	0
Common stock, par value $.10 per share; Authorized - 12,000,000 shares; Issued - 8,611,340 shares Outstanding 8,503,614 shares at September 30, 2017, and 8,502,614 shares at June 30, 2017	861	861
Additional paid-in capital	10,992	10,990
Retained earnings	76,165	73,072
Accumulated other comprehensive loss	(757)	(992)
Treasury stock, at cost 107,726 shares at September 30, 2017, and 108,726 shares at June 30, 2017	(406)	(410)
Total shareholders' equity	86,855	83,521
Total liabilities and shareholders' equity	$ 1,037,647	$ 982,291

Consolidated Statements of Fin3

Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
ASSETS
Securities held-to-maturity, fair value	$ 231,860	$ 228,452
SHAREHOLDERS' EQUITY
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	12,000,000	12,000,000
Common stock, shares issued (in shares)	8,611,340	8,611,340
Common stock, shares outstanding (in shares)	8,503,614	8,502,614
Treasury stock, shares (in shares)	107,726	108,726

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Loans	$ 7,059	$ 6,053
Investment securities - taxable	165	150
Mortgage-backed securities	817	784
Investment securities - tax exempt	1,036	824
Interest-bearing deposits and federal funds sold	12	3
Total interest income	9,089	7,814
Interest expense:
Interest on deposits	809	606
Interest on borrowings	110	121
Total interest expense	919	727
Net interest income	8,170	7,087
Provision for loan losses	347	543
Net interest income after provision for loan losses	7,823	6,544
Noninterest income:
Service charges on deposit accounts	851	773
Debit card fees	566	491
Investment services	72	70
E-commerce fees	38	32
Other operating income	213	183
Total noninterest income	1,740	1,549
Noninterest expense:
Salaries and employee benefits	2,927	2,668
Occupancy expense	356	380
Equipment and furniture expense	113	120
Service and data processing fees	487	448
Computer software, supplies and support	143	146
Advertising and promotion	55	123
FDIC insurance premiums	93	114
Legal and professional fees	231	198
Other	488	557
Total noninterest expense	4,893	4,754
Income before provision for income taxes	4,670	3,339
Provision for income taxes	1,198	832
Net income	$ 3,472	$ 2,507
Basic earnings per share (in dollars per share)	$ 0.41	$ 0.30
Basic average shares outstanding (in shares)	8,502,734	8,483,179
Diluted earnings per share (in dollars per share)	$ 0.41	$ 0.30
Diluted average shares outstanding (in shares)	8,531,242	8,497,669
Dividends per share (in dollars per share)	$ 0.0975	$ 0.0950

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net Income	$ 3,472	$ 2,507
Other comprehensive income (loss):
Unrealized holding gains (losses) on available-for-sale securities, net of income tax expense (benefit) of $145 and ($101), respectively	235	(142)
Accretion of unrealized loss on securities transferred to held-to-maturity, net of income taxes of $- and $1, respectively	0	1
Total other comprehensive income (loss), net of taxes	235	(141)
Comprehensive income	$ 3,707	$ 2,366

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Other comprehensive income (loss):
Unrealized holding gains (losses) on available-for-sale securities, income taxes	$ 145	$ (101)
Accretion of unrealized loss on securities transferred to held-to-maturity, income taxes	$ 0	$ 1

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Balance at Jun. 30, 2016	$ 861	$ 10,872	$ 63,805	$ (725)	$ (512)	$ 74,301
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised		30			45	75
Tax benefit of stock based compensation		41				41
Dividends declared			(369)			(369)
Net income			2,507			2,507
Other comprehensive income (loss), net of taxes				(141)		(141)
Balance at Sep. 30, 2016	861	10,943	65,943	(866)	(467)	76,414
Balance at Jun. 30, 2017	861	10,990	73,072	(992)	(410)	83,521
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised		2			4	6
Dividends declared			(379)			(379)
Net income			3,472			3,472
Other comprehensive income (loss), net of taxes				235		235
Balance at Sep. 30, 2017	$ 861	$ 10,992	$ 76,165	$ (757)	$ (406)	$ 86,855

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net Income	$ 3,472	$ 2,507
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	157	159
Deferred income tax expense	1,214	801
Net amortization of premiums and discounts	213	223
Net amortization of deferred loan costs and fees	134	118
Provision for loan losses	347	543
Losses on sale of foreclosed real estate	37	47
Excess tax benefit from share based compensation	0	(41)
Net decrease in accrued income taxes	(647)	(1,554)
Net increase in accrued interest receivable	(341)	(90)
Net decrease in prepaid and other assets	175	207
Net increase (decrease) in other liabilities	1,717	(81)
Net cash provided by operating activities	6,478	2,839
Securities available-for-sale:
Proceeds from maturities	17,594	24,481
Purchases of securities	(27,125)	(16,443)
Principal payments on securities	571	620
Securities held-to-maturity:
Proceeds from maturities	4,137	3,253
Purchases of securities	(12,050)	(7,648)
Principal payments on securities	5,851	1,525
Net redemption of Federal Home Loan Bank Stock	556	532
Maturity of long term certificate of deposit	0	65
Net increase in loans receivable	(14,768)	(26,786)
Proceeds from sale of foreclosed real estate	38	39
Purchases of premises and equipment	(101)	(41)
Net cash used by investing activities	(25,297)	(20,403)
Cash flows from financing activities
Net decrease in short-term advances	(6,200)	(11,800)
Repayment of long-term FHLB advances	(2,500)	0
Payment of cash dividends	(379)	(369)
Proceeds from issuance of stock options	6	75
Excess tax benefit from share based compensation	0	41
Net increase in deposits	58,034	33,708
Net cash provided by financing activities	48,961	21,655
Net increase in cash and cash equivalents	30,142	4,091
Cash and cash equivalents at beginning of period	16,277	15,895
Cash and cash equivalents at end of period	46,419	19,986
Non-cash investing activities:
Foreclosed loans transferred to foreclosed real estate	28	0
Cash paid during period for:
Interest	931	729
Income taxes	$ 630	$ 1,585

Basis of Presentation

Basis of Presentation	3 Months Ended
	Sep. 30, 2017
Basis of Presentation [Abstract]
Basis of Presentation	(1) Basis of Presentation Within the accompanying unaudited consolidated statement of financial condition, and related notes to the consolidated financial statements, June 30, 2017 data was derived from the audited consolidated financial statements of Greene County Bancorp, Inc. (the “Company”) and its wholly owned subsidiaries, The Bank of Greene County (the “Bank”) and Greene Risk Management, Inc., and the Bank’s wholly owned subsidiaries, Greene County Commercial Bank and Greene Property Holdings, Ltd. The consolidated financial statements at and for the three months ended September 30, 2017 and 2016 are unaudited. The financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. To the extent that information and notes required by GAAP for complete financial statements are contained in or are consistent with the audited financial statements incorporated by reference to Greene County Bancorp, Inc.’s Annual Report on Form 10-K for the year ended June 30, 2017, such information and notes have not been duplicated herein. In the opinion of management, all adjustments (consisting of only normal recurring items) necessary for a fair presentation of the financial position and results of operations and cash flows at and for the periods presented have been included. Amounts in the prior year’s consolidated financial statements have been reclassified whenever necessary to conform to the current year’s presentation. These reclassifications, if any, had no effect on net income or retained earnings as previously reported. All material inter-company accounts and transactions have been eliminated in the consolidation. The results of operations and other data for the three months ended September 30, 2017 are not necessarily indicative of results that may be expected for the entire fiscal year ending June 30, 2018. These consolidated financial statements consider events that occurred through the date the consolidated financial statements were issued. CRITICAL ACCOUNTING POLICIES Greene County Bancorp, Inc.’s critical accounting policies relate to the allowance for loan losses and the evaluation of securities for other-than-temporary impairment. The allowance for loan losses is based on management’s estimation of an amount that is intended to absorb losses in the existing portfolio. The allowance for loan losses is established through a provision for loan losses based on management’s evaluation of the risk inherent in the loan portfolio, the composition of the portfolio, specific impaired loans and current economic conditions. Such evaluation, which includes a review of all loans for which full collectability may not be reasonably assured, considers among other matters, the estimated net realizable value or the fair value of the underlying collateral, economic conditions, historical loan loss experience, management’s estimate of probable credit losses and other factors that warrant recognition in providing for the allowance of loan losses. However, this evaluation involves a high degree of complexity and requires management to make subjective judgments that often require assumptions or estimates about highly uncertain matters. This critical accounting policy and its application are periodically reviewed with the Audit Committee and the Board of Directors. There have been no significant changes in the application of this critical accounting policy during the three months ended September 30, 2017. Securities are evaluated for other-than-temporary impairment by performing periodic reviews of individual securities in the investment portfolio. Greene County Bancorp, Inc. makes an assessment to determine whether there have been any events or economic circumstances to indicate that a security, on which there is an unrealized loss, is impaired on an other-than-temporary basis. The Company considers many factors, including the severity and duration of the impairment; the intent and ability of the Company to hold the equity security for a period of time sufficient for a recovery in value; recent events specific to the issuer or industry; and for debt securities, the intent to sell the security, the likelihood to be required to sell the security before it recovers the entire amortized cost, external credit ratings and recent downgrades. The Company is required to record other-than-temporary impairment charges through earnings, if it has the intent to sell, or will more likely than not be required to sell an impaired debt security before a recovery of its amortized cost basis. In addition, the Company is required to record other-than-temporary impairment charges through earnings for the amount of credit losses, regardless of the intent or requirement to sell. Credit loss is measured as the difference between the present value of an impaired debt security’s cash flows and its amortized cost basis. Non-credit related write-downs to fair value must be recorded as decreases to accumulated other comprehensive income as long as the Company has no intent or requirement to sell an impaired security before a recovery of amortized cost basis.

Nature of Operations

Nature of Operations	3 Months Ended
	Sep. 30, 2017
Nature of Operations [Abstract]
Nature of Operations	(2) Nature of Operations Greene County Bancorp, Inc.’s primary business is the ownership and operation of its subsidiaries, The Bank of Greene County and Greene Risk Management, Inc. The Bank of Greene County has 14 full-service offices, an operations center and lending center located in its market area within the Hudson Valley Region of New York State. The Bank of Greene County is primarily engaged in the business of attracting deposits from the general public in The Bank of Greene County’s market area, and investing such deposits, together with other sources of funds, in loans and investment securities. Greene Risk Management, Inc. is a pooled captive insurance company, which provides additional insurance coverage for the Company and its subsidiaries related to the operations of the Company for which insurance may not be economically feasible. The Bank of Greene County also owns and operates two subsidiaries, Greene County Commercial Bank and Greene Property Holdings, Ltd. Greene County Commercial Bank’s primary business is to attract deposits from and provide banking services to local municipalities. Greene Property Holdings, Ltd.is a real estate investment trust, which holds mortgages and notes which were originated through and serviced by The Bank of Greene County.

Use of Estimates

Use of Estimates	3 Months Ended
	Sep. 30, 2017
Use of Estimates [Abstract]
Use of Estimates	(3) Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses and the assessment of other-than-temporary security impairment. While management uses available information to recognize losses on loans, future additions to the allowance for loan losses (the “Allowance”) may be necessary, based on changes in economic conditions, asset quality or other factors. In addition, various regulatory authorities, as an integral part of their examination process, periodically review the Allowance. Such authorities may require the Company to recognize additions to the Allowance based on their judgments of information available to them at the time of their examination. Greene County Bancorp, Inc. makes an assessment to determine whether there have been any events or economic circumstances to indicate that a security on which there is an unrealized loss is impaired on an other-than-temporary basis. The Company considers many factors including the severity and duration of the impairment; the intent and ability of the Company to hold the security for a period of time sufficient for a recovery in value; recent events specific to the issuer or industry; and for debt securities, intent to sell the security, whether it is more likely than not we will be required to sell the security before recovery, whether loss is expected, external credit ratings and recent downgrades. Securities on which there is an unrealized loss that is deemed to be other-than-temporary are written down to fair value through earnings.

Securities

Securities	3 Months Ended
	Sep. 30, 2017
Securities [Abstract]
Securities	(4) Securities Securities at September 30, 2017 consisted of the following: (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities available-for-sale: U.S. government sponsored enterprises $ 4,561 $ 137 $ - $ 4,698 State and political subdivisions 67,915 259 1 68,173 Mortgage-backed securities-residential 4,470 69 4 4,535 Mortgage-backed securities-multi-family 20,167 723 16 20,874 Corporate debt securities 2,262 75 2 2,335 Total debt securities 99,375 1,263 23 100,615 Equity securities 62 132 - 194 Total securities available-for-sale 99,437 1,395 23 100,809 Securities held-to-maturity: U.S. government sponsored enterprises 6,000 - 59 5,941 State and political subdivisions 120,168 3,714 136 123,746 Mortgage-backed securities-residential 8,136 339 - 8,475 Mortgage-backed securities-multi-family 88,879 2,453 150 91,182 Corporate debt securities 1,000 - 2 998 Other securities 1,511 20 13 1,518 Total securities held-to-maturity 225,694 6,526 360 231,860 Total securities $ 325,131 $ 7,921 $ 383 $ 332,669 Securities at June 30, 2017 consisted of the following: (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities available-for-sale: U.S. government sponsored enterprises $ 4,566 $ 151 $ - $ 4,717 State and political subdivisions 57,885 227 - 58,112 Mortgage-backed securities-residential 4,868 72 27 4,913 Mortgage-backed securities-multi-family 20,344 483 62 20,765 Asset-backed securities 1 - - 1 Corporate debt securities 2,765 29 3 2,791 Total debt securities 90,429 962 92 91,299 Equity securities 62 122 - 184 Total securities available-for-sale 90,491 1,084 92 91,483 Securities held-to-maturity: U.S. government sponsored enterprises 6,000 - 53 5,947 State and political subdivisions 115,805 3,434 95 119,144 Mortgage-backed securities-residential 10,798 274 2 11,070 Mortgage-backed securities-multi-family 88,702 1,259 199 89,762 Corporate debt securities 1,000 - 5 995 Other securities 1,525 21 12 1,534 Total securities held-to-maturity 223,830 4,988 366 228,452 Total securities $ 314,321 $ 6,072 $ 458 $ 319,935 Greene County Bancorp, Inc.’s current policies generally limit securities investments to U.S. Government and securities of government sponsored enterprises, federal funds sold, municipal bonds, corporate debt obligations and certain mutual funds. In addition, the Company’s policies permit investments in mortgage-backed securities, including securities issued and guaranteed by Fannie Mae, Freddie Mac, and GNMA, and collateralized mortgage obligations issued by these entities. At September 30, 2017, all mortgage-backed securities including collateralized mortgage obligations were securities of government sponsored enterprises, no private-label mortgage-backed securities or collateralized mortgage obligations were held in the securities portfolio. The Company’s investments in state and political subdivisions securities generally are municipal obligations that are general obligations supported by the general taxing authority of the issuer, and in some cases are insured. The obligations issued by school districts are supported by state aid. Primarily, these investments are issued by municipalities within New York State. The following table shows fair value and gross unrealized losses, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2017. Less Than 12 Months More Than 12 Months Total (In thousands, except number of securities) Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Securities available-for-sale: State and political subdivisions $ 149 $ 1 1 $ - $ - - $ 149 $ 1 1 Mortgage-backed securities-residential 490 4 1 - - - 490 4 1 Mortgage-backed securities-multi-family 2,986 16 2 - - - 2,986 16 2 Corporate debt securities 261 1 2 499 1 1 760 2 3 Total securities available-for-sale 3,886 22 6 499 1 1 4,385 23 7 Securities held-to-maturity: U.S. government sponsored enterprises 3,958 42 1 1,983 17 1 5,941 59 2 State and political subdivisions 10,455 81 74 2,526 55 28 12,981 136 102 Mortgage-backed securities-multi-family 13,660 125 12 1,421 25 2 15,081 150 14 Corporate debt securities 998 2 2 - - - 998 2 2 Other securities 595 1 2 453 12 1 1,048 13 3 Total securities held-to-maturity 29,666 251 91 6,383 109 32 36,049 360 123 Total securities $ 33,552 $ 273 97 $ 6,882 $ 110 33 $ 40,434 $ 383 130 The following table shows fair value and gross unrealized losses, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2017. Less Than 12 Months More Than 12 Months Total (In thousands, except number of securities) Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Securities available-for-sale: Mortgage-backed securities-residential $ 1,164 $ 27 1 $ - $ - - $ 1,164 $ 27 1 Mortgage-backed securities-multi-family 6,488 62 4 - - - 6,488 62 4 Corporate debt securities 760 3 2 - - - 760 3 2 Total securities available for sale 8,412 92 7 - - - 8,412 92 7 Securities held to maturity: U.S. government sponsored enterprises 5,947 53 2 - - - 5,947 53 2 State and political subdivisions 8,976 76 64 514 19 6 9,490 95 70 Mortgage-backed securities-residential 1,864 2 1 - - - 1,864 2 1 Mortgage-backed securities-multi-family 23,823 199 15 - - - 23,823 199 15 Corporate debt securities 995 5 1 - - - 995 5 1 Other securities 467 11 1 74 1 1 541 12 2 Total securities held to maturity 42,072 346 84 588 20 7 42,660 366 91 Total securities $ 50,484 $ 438 91 $ 588 $ 20 7 $ 51,072 $ 458 98 When the fair value of a held-to-maturity or available-for-sale security is less than its amortized cost basis, an assessment is made as to whether other-than-temporary impairment (“OTTI”) is present. The Company considers numerous factors when determining whether a potential OTTI exists and the period over which the debt security is expected to recover. The principal factors considered are (1) the length of time and the extent to which the fair value has been less than the amortized cost basis, (2) the financial condition of the issuer (and guarantor, if any) and adverse conditions specifically related to the security, industry or geographic area, (3) failure of the issuer of the security to make scheduled interest or principal payments, (4) any changes to the rating of the security by a rating agency, and (5) the presence of credit enhancements, if any, including the guarantee of the federal government or any of its agencies. For debt securities, OTTI is considered to have occurred if (1) the Company intends to sell the security before recovery of its amortized cost basis, (2) it is more likely than not the Company will be required to sell the security before recovery of its amortized cost basis, or (3) if the present value of expected cash flows is not sufficient to recover the entire amortized cost basis. In determining the present value of expected cash flows, the Company discounts the expected cash flows at the effective interest rate implicit in the security at the date of acquisition. In estimating cash flows expected to be collected, the Company uses available information with respect to security prepayment speeds, default rates and severity. In determining whether OTTI has occurred for equity securities, the Company considers the applicable factors described above and the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. For debt securities, credit-related OTTI is recognized in earnings while noncredit related OTTI on securities not expected to be sold is recognized in other comprehensive income/loss (“OCI”). Credit-related OTTI is measured as the difference between the present value of an impaired security’s expected cash flows and its amortized cost basis. Noncredit-related OTTI is measured as the difference between the fair value of the security and its amortized cost less any credit-related losses recognized. For securities classified as held-to-maturity, the amount of OTTI recognized in OCI is accreted to the credit-adjusted expected cash flow amounts of the securities over future periods. For equity securities, the entire amount of OTTI is recognized in earnings. Management evaluated securities considering the factors as outlined above, and based on this evaluation the Company does not consider these investments to be other-than-temporarily impaired at September 30, 2017. Management believes that the reasons for the decline in fair value are due to interest rates, widening credit spreads and market illiquidity at the reporting date. There were no transfers of securities available-for-sale to held-to-maturity during the three months ended September 30, 2017 or 2016. During the three months ended September 30, 2017 and 2016, there were no sales of securities and no gains or losses were recognized. There was no other-than-temporary impairment loss recognized during the three months ended September 30, 2017 and 2016. The estimated fair values of debt securities at September 30, 2017, by contractual maturity are shown below. Expected maturities may differ from contractual maturities, because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. (In thousands) Available-for-sale debt securities Amortized Cost Fair Value Within one year $ 69,916 $ 70,248 After one year through five years 4,822 4,958 After five years through ten years - - After ten years - - Total available-for-sale debt securities 74,738 75,206 Mortgage-backed and asset-backed securities 24,637 25,409 Equity securities 62 194 Total available-for-sale securities 99,437 100,809 Held-to-maturity debt securities Within one year 17,851 18,085 After one year through five years 60,032 61,409 After five years through ten years 38,678 39,787 After ten years 12,118 12,922 Total held-to-maturity debt securities 128,679 132,203 Mortgage-backed 97,015 99,657 Total held-to-maturity securities 225,694 231,860 Total securities $ 325,131 $ 332,669 At September 30, 2017 and June 30, 2017, respectively, securities with an aggregate fair value of $319.1 Federal Home Loan Bank Stock Federal law requires a member institution of the Federal Home Loan Bank (“FHLB”) system to hold stock of its district FHLB according to a predetermined formula. This stock is restricted in that it can only be sold to the FHLB or to another member institution, and all sales of FHLB stock must be at par. As a result of these restrictions, FHLB stock is carried at cost. FHLB stock is held as a long-term investment and its value is determined based on the ultimate recoverability of the par value. Impairment of this investment is evaluated quarterly and is a matter of judgment that reflects management’s view of the FHLB’s long-term performance, which includes factors such as the following: its operating performance; the severity and duration of declines in the fair value of its net assets related to its capital stock amount; its commitment to make payments required by law or regulation and the level of such payments in relation to its operating performance; the impact of legislative and regulatory changes on the FHLB, and accordingly, on the members of the FHLB; and its liquidity and funding position. After evaluating these considerations, Greene County Bancorp, Inc. concluded that the par value of its investment in FHLB stock will be recovered and, therefore, no other-than-temporary impairment charge was recorded during the three months ended September 30, 2017 or 2016.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	3 Months Ended
	Sep. 30, 2017
Loans and Allowance for Loan Losses [Abstract]
Loans and Allowance for Loan Losses	(5) Loans and Allowance for Loan Losses Loan segments and classes at September 30, 2017 and June 30, 2017 are summarized as follows: (In thousands) September 30, 2017 June 30, 2017 Residential real estate: Residential real estate $ 247,557 $ 245,331 Residential construction and land 7,986 7,160 Multi-family 9,216 9,199 Commercial real estate: Commercial real estate 261,462 257,964 Commercial construction 31,140 28,430 Consumer loan: Home equity 21,058 21,076 Consumer installment 4,795 4,790 Commercial loans 65,479 60,381 Total gross loans 648,693 634,331 Allowance for loan losses (11,098 ) (11,022 ) Deferred fees and costs 851 878 Loans receivable, net $ 638,446 $ 624,187 Management closely monitors the quality of the loan portfolio and has established a loan review process designed to help grade the quality and profitability of the Company’s loan portfolio. The credit quality grade helps management make a consistent assessment of each loan relationship’s credit risk. Consistent with regulatory guidelines, The Bank of Greene County provides for the classification of loans considered being of lesser quality. Such ratings coincide with the “Substandard,” “Doubtful” and “Loss” classifications used by federal regulators in their examination of financial institutions. Generally, an asset is considered Substandard if it is inadequately protected by the current net worth and paying capacity of the obligors and/or the collateral pledged. Substandard assets include those characterized by the distinct possibility that the insured financial institution will sustain some loss if the deficiencies are not corrected. Assets classified as Doubtful have all the weaknesses inherent in assets classified Substandard with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, highly questionable and improbable. Assets classified as Loss are those considered uncollectible and of such little value that their continuance as assets without the establishment of a full loss reserve and/or charge-off is not warranted. Assets that do not currently expose the Company to sufficient risk to warrant classification in one of the aforementioned categories but otherwise possess weaknesses are designated “Special Mention.” Management also maintains a listing of loans designated “Watch.” These loans represent borrowers with declining earnings, strained cash flow, increasing leverage and/or weakening market fundamentals that indicate above average risk. When The Bank of Greene County classifies problem assets as either Substandard or Doubtful, it generally establishes a specific valuation allowance or “loss reserve” in an amount deemed prudent by management. General allowances represent loss allowances that have been established to recognize the inherent risk associated with lending activities, but which, unlike specific allowances, have not been allocated to particular loans. When The Bank of Greene County identifies problem loans as being impaired, it is required to evaluate whether the Bank will be able to collect all amounts due either through repayments or the liquidation of the underlying collateral. If it is determined that impairment exists, the Bank is required either to establish a specific allowance for losses equal to the amount of impairment of the assets, or to charge-off such amount. The Bank of Greene County’s determination as to the classification of its loans and the amount of its valuation allowance is subject to review by its regulatory agencies, which can order the establishment of additional general or specific loss allowances. The Bank of Greene County reviews its portfolio monthly to determine whether any assets require classification in accordance with applicable regulations. The Bank primarily has four segments within its loan portfolio that it considers when measuring credit quality: residential real estate loans, commercial real estate loans, consumer loans and commercial loans. The residential real estate portfolio consists of residential, construction, and multi-family loan classes. Commercial real estate loans consist of commercial real estate and commercial construction loan classes. Consumer loans consist of home equity loan and consumer installment loan classes. The inherent risk within the loan portfolio varies depending upon each of these loan types. The Bank of Greene County’s primary lending activity is the origination of residential mortgage loans, including home equity loans, which are collateralized by residences. Generally, residential mortgage loans are made in amounts up to 89.9% of the appraised value of the property. However, The Bank of Greene County will originate residential mortgage loans with loan-to-value ratios of up to 95.0%, with private mortgage insurance. In the event of default by the borrower, The Bank of Greene County will acquire and liquidate the underlying collateral. By originating the loan at a loan-to-value ratio of 89.9% or less or obtaining private mortgage insurance, The Bank of Greene County limits its risk of loss in the event of default. However, the market values of the collateral may be adversely impacted by declines in the economy. Home equity loans may have an additional inherent risk if The Bank of Greene County does not hold the first mortgage. The Bank of Greene County may stand in a secondary position in the event of collateral liquidation resulting in a greater chance of insufficiency to meet all obligations. Construction lending generally involves a greater degree of risk than other residential mortgage lending. The repayment of the construction loan is, to a great degree, dependent upon the successful and timely completion of the construction of the subject property within specified cost limits. The Bank of Greene County completes inspections during the construction phase prior to any disbursements. The Bank of Greene County limits its risk during the construction as disbursements are not made until the required work for each advance has been completed. Construction delays may further impair the borrower’s ability to repay the loan. Loans collateralized by commercial real estate, and multi-family dwellings, such as apartment buildings generally are larger than residential loans and involve a greater degree of risk. Commercial real estate loans often involve large loan balances to single borrowers or groups of related borrowers. Payments on these loans depend to a large degree on the results of operations and management of the properties or underlying businesses, and may be affected to a greater extent by adverse conditions in the real estate market or the economy in general. Accordingly, the nature of commercial real estate loans makes them more difficult for management to monitor and evaluate. Consumer loans generally have shorter terms and higher interest rates than residential mortgage loans. In addition, consumer loans expand the products and services offered by The Bank of Greene County to better meet the financial services needs of its customers. Consumer loans generally involve greater credit risk than residential mortgage loans because of the difference in the nature of the underlying collateral. Repossessed collateral for a defaulted consumer loan may not provide an adequate source of repayment of the outstanding loan balance because of the greater likelihood of damage, loss or depreciation in the underlying collateral. The remaining deficiency often does not warrant further substantial collection efforts against the borrower beyond obtaining a deficiency judgment. In addition, consumer loan collections depend on the borrower’s personal financial stability. Furthermore, the application of various federal and state laws, including federal and state bankruptcy and insolvency laws, may limit the amount that can be recovered on such loans. Commercial lending generally involves greater risk than residential mortgage lending and involves risks that are different from those associated with residential and commercial real estate mortgage lending. Real estate lending is generally considered to be collateral-based, with loan amounts based on fixed loan-to-collateral values, and liquidation of the underlying real estate collateral is viewed as the primary source of repayment in the event of borrower default. Although commercial loans may be collateralized by equipment or other business assets, the liquidation of collateral in the event of a borrower default is often an insufficient source of repayment because equipment and other business assets may be obsolete or of limited use, among other things. Accordingly, the repayment of a commercial loan depends primarily on the creditworthiness of the borrower (and any guarantors), while liquidation of collateral is a secondary and often insufficient source of repayment. Loan balances by internal credit quality indicator at September 30, 2017 are shown below. ( In thousands Performing Watch Special Mention Substandard Total Residential real estate $ 244,334 $ 1,169 $ 91 $ 1,963 $ 247,557 Residential construction and land 7,986 - - - 7,986 Multi-family 8,356 - 773 87 9,216 Commercial real estate 248,918 - 10,572 1,972 261,462 Commercial construction 30,964 - - 176 31,140 Home equity 20,400 - - 658 21,058 Consumer installment 4,763 23 - 9 4,795 Commercial loans 64,230 17 49 1,183 65,479 Total gross loans $ 629,951 $ 1,209 $ 11,485 $ 6,048 $ 648,693 Loan balances by internal credit quality indicator at June 30, 2017 are shown below. (In thousands Performing Watch Special Mention Substandard Total Residential real estate $ 242,592 $ 813 $ 91 $ 1,835 $ 245,331 Residential construction and land 7,160 - - - 7,160 Multi-family 9,110 - - 89 9,199 Commercial real estate 255,090 419 404 2,051 257,964 Commercial construction 28,254 - - 176 28,430 Home equity 20,858 - - 218 21,076 Consumer installment 4,770 10 - 10 4,790 Commercial loans 59,030 - 60 1,291 60,381 Total gross loans $ 626,864 $ 1,242 $ 555 $ 5,670 $ 634,331 The Company had no loans classified doubtful or loss at September 30, 2017 or June 30, 2017. The $10.9 million increase in loans designated as special mention at September 30, 2017 compared to June 30, 2017 represented loans which, based on updated annual review, indicated weaknesses in borrowers’ cash flow, warranting management’s closer monitoring. At September 30, 2017, all of these loans were performing and management believes that the identified weaknesses do not expose the Company to sufficient risk to warrant a classification of substandard. Nonaccrual Loans Management places loans on nonaccrual status once the loans have become 90 days or more delinquent. A nonaccrual loan is defined as a loan in which collectability is questionable and therefore interest on the loan will no longer be recognized on an accrual basis. A loan is not placed back on accrual status until the borrower has demonstrated the ability and willingness to make timely payments on the loan. A loan does not have to be 90 days delinquent in order to be classified as nonaccrual. Nonaccrual loans consisted primarily of loans secured by real estate at September 30, 2017 and June 30, 2017. Loans on nonaccrual status totaled $3.3 million at September 30, 2017 of which $1.6 million were in the process of foreclosure. At September 30, 2017, there were twelve residential loans in the process of foreclosure totaling $1.1 million. Included in nonaccrual loans were $1.4 million of loans which were less than 90 days past due at September 30, 2017, but have a recent history of delinquency greater than 90 days past due. These loans will be returned to accrual status once they have demonstrated a history of timely payments. Included in total loans past due were $228,000 of loans which were making payments pursuant to forbearance agreements. Under the forbearance agreements, the customers have made arrangements with the Bank to bring the loans current over a specified period of time (resulting in an insignificant delay in repayment). During this term of the forbearance agreement, the Bank has agreed not to continue foreclosure proceedings. Loans on nonaccrual status totaled $3.6 million at June 30, 2017 of which $1.6 million were in the process of foreclosure. At June 30, 2017, there were twelve residential loans in the process of foreclosure totaling $967,000. Included in nonaccrual loans were $1.9 million of loans which were less than 90 days past due at June 30, 2017, but have a recent history of delinquency greater than 90 days past due. The following table sets forth information regarding delinquent and/or nonaccrual loans at September 30, 2017: (In thousands) 30-59 days past due 60-89 days past due 90 days or more past due Total past due Current Total Loans Loans on Non- accrual Residential real estate $ 1,704 $ 1,036 $ 967 $ 3,707 $ 243,850 $ 247,557 $ 1,371 Residential construction and land - - - - 7,986 7,986 - Multi-family - - - - 9,216 9,216 - Commercial real estate 170 747 391 1,308 260,154 261,462 1,051 Commercial construction - - 176 176 30,964 31,140 176 Home equity 115 38 176 329 20,729 21,058 333 Consumer installment 48 23 9 80 4,715 4,795 9 Commercial loans - 178 293 471 65,008 65,479 370 Total gross loans $ 2,037 $ 2,022 $ 2,012 $ 6,071 $ 642,622 $ 648,693 $ 3,310 The following table sets forth information regarding delinquent and/or nonaccrual loans at June 30, 2017: (In thousands) 30-59 days past due 60-89 days past due 90 days or more past due Total past due Current Total Loans Loans on Non- accrual Residential real estate $ 2,088 $ 515 $ 935 $ 3,538 $ 241,793 $ 245,331 $ 1,240 Residential construction and land - - - - 7,160 7,160 - Multi-family - - - - 9,199 9,199 - Commercial real estate 74 1,070 540 1,684 256,280 257,964 1,452 Commercial construction - 176 - 176 28,254 28,430 176 Home equity 220 186 33 439 20,637 21,076 218 Consumer installment 22 10 10 42 4,748 4,790 10 Commercial loans 18 186 202 406 59,975 60,381 476 Total gross loans $ 2,422 $ 2,143 $ 1,720 $ 6,285 $ 628,046 $ 634,331 $ 3,572 The Bank of Greene County had accruing loans delinquent more than 90 days totaling $68,000 and $69,000 at September 30, 2017 and June 30, 2017, respectively. The loans delinquent more than 90 days and accruing consist of loans that are well collateralized and the borrowers have demonstrated the ability and willingness to pay. The borrower has made arrangements with the Bank to bring the loan current within a specified time period and has made a series of payments as agreed. The table below details additional information related to nonaccrual loans for the three months ended September 30: (In thousands) 2017 2016 Interest income that would have been recorded if loans had been performing in accordance with original terms $ 78 $ 80 Interest income that was recorded on nonaccrual loans 34 28 Impaired Loan Analysis The Company identifies impaired loans and measures the impairment in accordance with FASB ASC subtopic “ Receivables – Loan Impairment.” The tables below detail additional information on impaired loans at the date or periods indicated: At September 30, 2017 For the three months ended September 30, 2017 (In thousands) Recorded Investment Unpaid Principal Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial real estate $ 805 $ 805 $ - $ 807 $ 8 Home equity 181 181 - 183 - Commercial loans 370 370 - 245 - Total impaired loans with no allowance 1,356 1,356 - 1,235 8 With an allowance recorded: Residential real estate 1,706 1,706 335 1,536 11 Commercial real estate 425 425 108 430 - Commercial construction 176 176 22 176 - Home equity 325 325 63 325 3 Total impaired loans with allowance 2,632 2,632 528 2,467 14 Total impaired: Residential real estate 1,706 1,706 335 1,536 11 Commercial real estate 1,230 1,230 108 1,237 8 Commercial construction 176 176 22 176 - Home equity 506 506 63 508 3 Commercial loans 370 370 - 245 - Total impaired loans $ 3,988 $ 3,988 $ 528 $ 3,702 $ 22 At June 30, 2017 For the three months ended September 30, 2016 (In thousands) Recorded Investment Unpaid Principal Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Residential real estate $ - $ - $ - $ 375 $ - Commercial real estate 809 809 - 1,021 10 Home equity 186 186 - 5 - Commercial loans 186 186 - - - Total impaired loans with no allowance 1,181 1,181 - 1,401 10 With an allowance recorded: Residential real estate 1,455 1,455 278 1,345 12 Commercial real estate 440 440 135 402 4 Commercial construction 176 176 23 - - Commercial loans - - - 83 2 Total impaired loans with allowance 2,071 2,071 436 1,830 18 Total impaired loans: Residential real estate 1,455 1,455 278 1,720 12 Commercial real estate 1,249 1,249 135 1,423 14 Commercial construction 176 176 23 - - Home equity 186 186 - 5 - Commercial loans 186 186 - 83 2 Total impaired loans $ 3,252 $ 3,252 $ 436 $ 3,231 $ 28 The table below details loans that have been modified as a troubled debt restructuring during the three months ended September 30, 2017 or 2016. (D ollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Current Outstanding Recorded Investment September 30, 2017 Home equity 1 $ 325 $ 325 $ 325 September 30, 2016 None There were no loans that had been modified as a troubled debt restructuring during the twelve months prior to June 30, 2017 or 2016 which have subsequently defaulted during the three months ended September 30, 2017 or 2016, respectively. Allowance for Loan Losses The allowance for loan losses is established through a provision for loan losses based on management’s evaluation of the risk inherent in the loan portfolio, the composition of the loan portfolio, specific impaired loans and current economic conditions. Such evaluation, which includes a review of certain identified loans on which full collectability may not be reasonably assured, considers among other matters, the estimated net realizable value or the fair value of the underlying collateral, economic conditions, payment status of the loan, historical loan loss experience and other factors that warrant recognition in providing for the loan loss allowance. In addition, various regulatory agencies, as an integral part of their examination process, periodically review The Bank of Greene County’s allowance for loan losses. Such agencies may require The Bank of Greene County to recognize additions to the allowance based on their judgment about information available to them at the time of their examination. The Bank of Greene County considers smaller balance residential mortgages, home equity loans, commercial loans and installment loans to customers as small, homogeneous loans, which are evaluated for impairment collectively based on historical loss experience. Larger balance residential, commercial mortgage and business loans are viewed individually and considered impaired if it is probable that The Bank of Greene County will not be able to collect scheduled payments of principal and interest when due, according to the contractual terms of the loan agreements. The measurement of impaired loans is generally based on the fair value of the underlying collateral. The Bank of Greene County charges loans off against the allowance for credit losses when it becomes evident that a loan cannot be collected within a reasonable amount of time or that it will cost the Bank more than it will receive, and all possible avenues of repayment have been analyzed, including the potential of future cash flow, the value of the underlying collateral, and strength of any guarantors or co-borrowers. Generally, consumer loans and smaller business loans (not secured by real estate) in excess of 90 days are charged-off against the allowance for loan losses, unless equitable arrangements are made. For loans secured by real estate, a charge-off is recorded when it is determined that the collection of all or a portion of a loan may not be collected and the amount of that loss can be reasonably estimated. The following tables set forth the activity and allocation of the allowance for loan losses by loan category during and at the periods indicated. The allowance is allocated to each loan category based on historical loss experience and economic conditions. Activity for the three months ended September 30, 2017 (In thousands) Balance at June 30, 2017 Charge-offs Recoveries Provision Balance at September 30, 2017 Residential real estate $ 2,289 $ 44 $ - $ (169 ) $ 2,076 Residential construction and land 89 - - 4 93 Multi-family 43 - - 33 76 Commercial real estate 5,589 - - 170 5,759 Commercial construction 687 - - 63 750 Home equity 234 - - 81 315 Consumer installment 231 88 18 42 203 Commercial loans 1,680 157 - 225 1,748 Unallocated 180 - - (102 ) 78 Total $ 11,022 $ 289 $ 18 $ 347 $ 11,098 Allowance for Loan Losses Loans Receivable Ending Balance At September 30, 2017 Impairment Analysis Ending Balance At September 30, 2017 Impairment Analysis (In thousands) Individually Evaluated Collectively Evaluated Individually Evaluated Collectively Evaluated Residential real estate $ 335 $ 1,741 $ 1,706 $ 245,851 Residential construction and land - 93 - 7,986 Multi-family - 76 - 9,216 Commercial real estate 108 5,651 1,230 260,232 Commercial construction 22 728 176 30,964 Home equity 63 252 506 20,552 Consumer installment - 203 - 4,795 Commercial loans - 1,748 370 65,109 Unallocated - 78 - - Total $ 528 $ 10,570 $ 3,988 $ 644,705 Activity for the three months ended September 30, 2016 (In thousands) Balance at June 30, 2016 Charge-offs Recoveries Provision Balance at September 30, 2016 Residential real estate $ 2,396 $ - $ - $ (154 ) $ 2,242 Residential construction and land 75 - - (12 ) 63 Multi-family 22 - - (4 ) 18 Commercial real estate 4,541 - - 440 4,981 Commercial construction 502 - - 126 628 Home equity 309 - - (58 ) 251 Consumer installment 228 72 17 (5 ) 168 Commercial loans 1,412 - 3 77 1,492 Unallocated - - - 133 133 Total $ 9,485 $ 72 $ 20 $ 543 $ 9,976 Allowance for Loan Losses Loans Receivable Ending Balance At June 30, 2017 Impairment Analysis Ending Balance At June 30, 2017 Impairment Analysis (In thousands) Individually Evaluated Collectively Evaluated Individually Evaluated Collectively Evaluated Residential real estate $ 278 $ 2,011 $ 1,455 $ 243,876 Residential construction and land - 89 - 7,160 Multi-family - 43 - 9,199 Commercial real estate 135 5,454 1,249 256,715 Commercial construction 23 664 176 28,254 Home equity - 234 186 20,890 Consumer installment - 231 - 4,790 Commercial loans - 1,680 186 60,195 Unallocated - 180 - - Total $ 436 $ 10,586 $ 3,252 $ 631,079 Foreclosed real estate (FRE) FRE consists of properties acquired through mortgage loan foreclosure proceedings or in full or partial satisfaction of loans. The following table sets forth information regarding FRE at September 30, 2017 and June 30, 2017: (in thousands) September 30, 2017 June 30, 2017 Commercial real estate $ 752 $ 799 Total foreclosed real estate $ 752 $ 799

Fair Value Measurements and Fai

Fair Value Measurements and Fair Value of Financial Instruments	3 Months Ended
	Sep. 30, 2017
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value Measurements and Fair Value of Financial Instruments	(6) Fair Value Measurements and Fair Value of Financial Instruments Management uses its best judgment in estimating the fair value of the Company’s financial instruments; however, there are inherent weaknesses in any estimation technique. Therefore, for substantially all financial instruments, the fair value estimates herein are not necessarily indicative of the amounts the Company could have realized in a sale transaction on the dates indicated. The estimated fair value amounts have been measured at September 30, 2017 and June 30, 2017 and have not been re-evaluated or updated for purposes of these consolidated financial statements subsequent to those respective dates. As such, the estimated fair values of these financial instruments subsequent to the respective reporting dates may be different than the amounts reported at each period-end. The following information should not be interpreted as an estimate of the fair value of the entire Company since a fair value calculation is only provided for a limited portion of the Company’s assets and liabilities. Due to a wide range of valuation techniques and the degree of subjectivity used in making the estimates, comparisons between the Company’s disclosures and those of other companies may not be meaningful. The FASB ASC Topic on “ Fair Value Measurement” Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2: Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability. Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity). An asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. For assets measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used are as follows: Fair Value Measurements Using Quoted Prices In Active Markets For Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) September 30, 2017 (Level 1) (Level 2) (Level 3) Assets: U.S. Government sponsored enterprises $ 4,698 $ - $ 4,698 $ - State and political subdivisions 68,173 - 68,173 - Mortgage-backed securities-residential 4,535 - 4,535 - Mortgage-backed securities-multi-family 20,874 - 20,874 - Corporate debt securities 2,335 2,335 - - Equity securities 194 194 - - Securities available-for-sale $ 100,809 $ 2,529 $ 98,280 $ - Fair Value Measurements Using Quoted Prices In Active Markets For Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) June 30, 2017 (Level 1) (Level 2) (Level 3) Assets: U.S. Government sponsored enterprises $ 4,717 $ - $ 4,717 $ - State and political subdivisions 58,112 - 58,112 - Mortgage-backed securities-residential 4,913 - 4,913 - Mortgage-backed securities-multi-family 20,765 - 20,765 - Asset-backed securities 1 1 - - Corporate debt securities 2,791 2,791 - - Equity securities 184 184 - - Securities available-for-sale $ 91,483 $ 2,976 $ 88,507 $ - Certain investments that are actively traded and have quoted market prices have been classified as Level 1 valuations. Other available-for-sale investment securities have been valued by reference to prices for similar securities or through model-based techniques in which all significant inputs are observable and, therefore, such valuations have been classified as Level 2. In addition to disclosures of the fair value of assets on a recurring basis, FASB ASC Topic on “ Fair Value Measurement” Receivables –Loan Impairment” Fair values for foreclosed real estate are initially recorded based on market value evaluations by third parties, less costs to sell (“initial cost basis”). Any write-downs required when the related loan receivable is exchanged for the underlying real estate collateral at the time of transfer to foreclosed real estate are charged to the allowance for loan losses. Values are derived from appraisals, similar to impaired loans, of underlying collateral or discounted cash flow analysis. Subsequent to foreclosure, valuations are updated periodically and assets are marked to current fair value, not to exceed the initial cost basis. In the determination of fair value subsequent to foreclosure, management also considers other factors or recent developments, such as, changes in absorption rates and market conditions from the time of valuation and anticipated sales values considering management’s plans for disposition. Either change could result in adjustment to lower the property value estimates indicated in the appraisals. These measurements are classified as Level 3 within the fair value hierarchy. Fair Value Measurements Using (In thousands) Recorded Investment Related Allowance Fair Value (Level 1) (Level 2) (Level 3) September 30, 2017 Impaired loans $ 2,286 $ 528 $ 1,758 $ - $ - $ 1,758 Foreclosed real estate 752 - 752 - - 752 June 30, 2017 Impaired loans $ 1,822 $ 436 $ 1,386 $ - $ - $ 1,386 Foreclosed real estate 799 - 799 - - 799 The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which Level 3 inputs were utilized to determine fair value: (Dollars in thousands) Fair Value Valuation Technique Unobservable Input Range Weighted Average September 30, 2017 Impaired Loans $ 1,220 Appraisal of collateral (1) Appraisal adjustments (2) 26.58%-31.86 % 28.34 % Liquidation expenses (3) 4.09%-7.26 % 5.15 % 538 Discounted cash flow Discount rate 4.19%-6.63 % 5.36 % Foreclosed real estate 752 Appraisal of collateral (1) Appraisal adjustments (2) 0.00-0.00 % 0.00 % Liquidation expenses (3) 11.53%-18.80 % 16.62 % June 30, 2017 Impaired loans $ 845 Appraisal of collateral (1) Appraisal adjustments (2) 25.00%-42.52 % 28.46 % Liquidation expenses (3) 3.45%-7.38 % 5.93 % 541 Discounted cash flow Discount rate 4.19%-6.63 % 5.36 % Foreclosed real estate 799 Appraisal of collateral (1) Appraisal adjustments (2) 0.00-0.00 % 0.00 % Liquidation expenses (3) 11.64%-17.92 % 16.29 % (1) Fair value is generally determined through independent third-party appraisals of the underlying collateral, which generally includes various Level 3 inputs which are not observable. (2) Appraisals may be adjusted downwards by management for qualitative factors such as economic conditions. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received or age of the appraisal. (3) Appraisals are adjusted downwards by management for qualitative factors such as the estimated costs to liquidate the collateral. The carrying amounts reported in the statements of financial condition for cash and cash equivalents, accrued interest receivable and accrued interest payable approximate their fair values. Fair values of securities are based on quoted market prices (Level 1), where available, or matrix pricing (Level 2), which is a mathematical technique, used widely in the industry to value debt securities without relying exclusively on quoted market prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted prices. The carrying amount of Federal Home Loan Bank stock approximates fair value due to its restricted nature. Fair values for variable rate loans that reprice frequently, with no significant credit risk, are based on carrying value. Fair value for fixed rate loans are estimated using discounted cash flows and interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. Fair values disclosed for demand and savings deposits are equal to carrying amounts at the reporting date. The carrying amounts for variable rate money market deposits approximate fair values at the reporting date. Fair values for fixed rate certificates of deposit are estimated using discounted cash flows and interest rates currently being offered in the market on similar certificates. Fair value for Federal Home Loan Bank long term borrowings are estimated using discounted cash flows and interest rates currently being offered on similar borrowings. The carrying value of short-term Federal Home Loan Bank borrowings approximates its fair value. The fair value of commitments to extend credit is estimated based on an analysis of the interest rates and fees currently charged to enter into similar transactions, considering the remaining terms of the commitments and the credit-worthiness of the potential borrowers. At September 30, 2017 and June 30, 2017, the estimated fair values of these off-balance sheet financial instruments were immaterial, and are therefore excluded from the table below. The carrying amounts and estimated fair value of financial instruments are as follows: (In thousands) September 30, 2017 Fair Value Measurements Using Carrying Amount Fair Value (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 46,419 $ 46,419 $ 46,419 $ - $ - Long term certificate of deposit 2,145 2,145 2,145 - - Securities available-for-sale 100,809 100,809 2,529 98,280 - Securities held-to-maturity 225,694 231,860 - 231,860 - Federal Home Loan Bank stock 1,575 1,575 - 1,575 - Net loans 638,446 643,851 - - 643,851 Accrued interest receivable 4,374 4,374 - 4,374 - Deposits 917,569 917,730 - 917,730 - Borrowings 20,850 20,708 - 20,708 - Accrued interest payable 80 80 - 80 - (In thousands) June 30, 2017 Fair Value Measurements Using Carrying Amount Fair Value (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 16,277 $ 16,277 $ 16,277 $ - $ - Long term certificate of deposit 2,145 2,145 2,145 - - Securities available-for-sale 91,483 91,483 2,976 88,507 - Securities held-to-maturity 223,830 228,452 - 228,452 - Federal Home Loan Bank stock 2,131 2,131 - 2,131 - Net loans 624,187 629,690 - - 629,690 Accrued interest receivable 4,033 4,033 - 4,033 - Deposits 859,535 859,715 - 859,715 - Borrowings 29,550 29,411 - 29,411 - Accrued interest payable 92 92 - 92 -

Earnings Per Share

Earnings Per Share	3 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share	(7) Earnings Per Share Basic earnings per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed in a manner similar to that of basic earnings per share except that the weighted-average number of common shares outstanding is increased to include the number of incremental common shares that would have been outstanding under the treasury stock method if all potentially dilutive common shares (such as stock options) issued became vested during the period. There were no anti-dilutive securities or contracts outstanding during the three months ended September 30, 2017 and 2016. For the three months ended September 30, 2017 2016 Net Income $ 3,472,000 $ 2,507,000 Weighted Average Shares – Basic 8,502,734 8,483,179 Effect of Dilutive Stock Options 28,508 14,490 Weighted Average Shares - Dilute 8,531,242 8,497,669 Earnings per share - Basic $ 0.41 $ 0.30 Earnings per share - Diluted $ 0.41 $ 0.30

Dividends

Dividends	3 Months Ended
	Sep. 30, 2017
Dividends [Abstract]
Dividends	(8) Dividends On July 18, 2017, the Board of Directors declared a cash dividend for the quarter ended June 30, 2017 of $0.0975 per share on Greene County Bancorp, Inc.’s common stock. The dividend reflects an annual cash dividend rate of $0.39 per share, compared to an annual cash dividend rate of $0.38 declared during the previous quarter. The dividend was payable to stockholders of record as of August 15, 2017, and was paid on August 31, 2017. The MHC waived its right to receive dividends declared on its shares of the Company’s common stock for the quarter ended June 30, 2017.

Impact of Recent Accounting Pro

Impact of Recent Accounting Pronouncements	3 Months Ended
	Sep. 30, 2017
Impact of Recent Accounting Pronouncements [Abstract]
Impact of Recent Accounting Pronouncements	(9) Impact of Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued an Accounting Standard Update (“ASU) (ASU 2014-09) to amend its guidance on “Revenue from Contracts with Customers (Topic 606). The objective of the ASU is to align the recognition of revenue with the transfer of promised goods or services provided to customers in an amount that reflects the consideration which the entity expects to be entitled in exchange for those goods or services. This ASU will replace most existing revenue recognition guidance under GAAP when it becomes effective. In August 2015, the FASB issued an amendment (ASU 2015-14) which defers the effective date of this new guidance by one year. More detailed implementation guidance on Topic 606 was issued in March 2016 (ASU 2016-08), April 2016 (ASU 2016-10), May 2016 (ASU 2016-12), December 2016 (ASU 2016-20), February 2017 (ASU 2017-05), and September 2017 (ASU-2017-13) and the effective date and transition requirements for these ASUs are the same as the effective date and transition requirements of ASU 2014-09. The amendments in ASU 2014-09 are effective for public business entities for annual periods, beginning after December 15, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In August 2014, the FASB issued an amendment (ASU 2014-14) to its guidance on “Receivables – Troubled Debt Restructurings by Creditors (Subtopic 310-40)”. The objective of the ASU is to reduce the diversity in how creditors classify government-guaranteed mortgage loans, including FHA or VA guaranteed loans, upon foreclosure, to provide more decision-useful information about a creditor’s foreclosed mortgage loans that are expected to be recovered, at least in part, through government guarantees. The amendments in this Update are effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Public entities would be permitted to elect to early adopt for annual reporting periods beginning after December 15, 2016. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In January 2016, the FASB issued an Update (ASU 2016-01) to its guidance on “Financial Instruments (Subtopic 825-10)”. This amendment addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. These amendments require equity securities to be measured at fair value with changes in the fair value to be recognized through net income. The amendments also simplify the impairment assessment of equity investments without readily determinable fair values by requiring assessment for impairment qualitatively at each reporting period. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption of the amendments in this Update is not permitted. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In February 2016, the FASB issued an Update (ASU 2016-02) to its guidance on “Leases (Topic 842)”. The new leases standard applies a right-of-use (ROU) model that requires a lessee to record, for all leases with a lease term of more than 12 months, an asset representing its right to use the underlying asset and a liability to make lease payments. For leases with a term of 12 months or less, a practical expedient is available whereby a lessee may elect, by class of underlying asset, not to recognize an ROU asset or lease liability. The new leases standard requires a lessor to classify leases as either sales-type, direct financing or operating, similar to existing U.S. GAAP. Classification depends on the same five criteria used by lessees plus certain additional factors. The subsequent accounting treatment for all three lease types is substantially equivalent to existing U.S. GAAP for sales-type leases, direct financing leases, and operating leases. However, the new standard updates certain aspects of the lessor accounting model to align it with the new lessee accounting model, as well as with the new revenue standard under Topic 606. Lessees and lessors are required to provide certain qualitative and quantitative disclosures to enable users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The amendments are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The adoption of this ASU will result in a gross up of the Consolidated Statements of Financial Condition for right-of-use assets and associated lease liabilities for operating leases in which the Company is the lessee. The Company is evaluating the significance and other effects of adoption on the consolidated financial statements and related disclosures. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations. Branch building leases have been reviewed and are considered immaterial to the financial statements; there are no equipment leases to consider. In March 2016, the FASB issued an Update (ASU 2016-09) to its guidance on “Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting”. This amendment is intended to simplify the accounting for stock compensation. The areas for simplification in this Update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public business entities, the amendments in this Update are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any entity in any interim or annual period. The adoption of this guidance did not have a material impact on our consolidated results of operations or financial position. In June 2016, the FASB issued an Update (ASU 2016-13) to its guidance on “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”. ASU 2016-13 requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (CECL) model). Under this model, entities will estimate credit losses over the entire contractual term of the instrument (considering estimated prepayments, but not expected extensions or modifications unless reasonable expectation of a troubled debt restructuring exists) from the date of initial recognition of that instrument. The ASU also replaces the current accounting model for purchased credit impaired loans and debt securities. The allowance for credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”), should be determined in a similar manner to other financial assets measured on an amortized cost basis. However, upon initial recognition, the allowance for credit losses is added to the purchase price (“gross up approach”) to determine the initial amortized cost basis. The subsequent accounting for PCD financial assets is the same expected loss model described above. Further, the ASU made certain targeted amendments to the existing impairment model for available-for-sale (AFS) debt securities. For an AFS debt security for which there is neither the intent nor a more-likely-than-not requirement to sell, an entity will record credit losses as an allowance rather than a write-down of the amortized cost basis. For public business entities that are U.S. Securities and Exchange Commission (SEC) filers, the amendments in this Update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. All entities may adopt the amendments in this Update earlier as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. An entity will apply the amendments in this Update through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). The Company is currently evaluating the potential impact on our consolidated results of operations or financial position. The initial adjustment will not be reported in earnings and therefore will not have any material impact on our consolidated results of operations, but it is expected that it will have an impact on our consolidated financial position at the date of adoption of this Update. At this time, we have not calculated the estimated impact that this Update will have on our Allowance for Loan Losses, however, we anticipate it will have a significant impact on the methodology process we utilize to calculate the allowance. Alternative methodologies and software vendors are currently being considered. Data requirements and integrity are being reviewed and enhancements incorporated into standard processes. The Company is in the early stages of evaluation and implementation of the guidance. In August 2016, the FASB issued an Update (ASU 2016-15) which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments are intended to reduce diversity in practice. The amendment covers the following cash flows: Cash payments for debt prepayment or extinguishment costs will be classified in financing activities. Upon settlement of zero-coupon bonds and bonds with insignificant cash coupons, the portion of the payment attributable to imputed interest will be classified as an operating activity, while the portion of the payment attributable to principal will be classified as a financing activity. Cash paid by an acquirer that isn’t soon after a business combination for the settlement of a contingent consideration liability will be separated between financing activities and operating activities. Cash payments up to the amount of the contingent consideration liability recognized at the acquisition date will be classified in financing activities; any excess will be classified in operating activities. Cash paid soon after the business combination will be classified in investing activities. Cash proceeds received from the settlement of insurance claims will be classified on the basis of the related insurance coverage (that is, the nature of the loss). Cash proceeds from lump-sum settlements will be classified based on the nature of each loss included in the settlement. Cash proceeds received from the settlement of corporate-owned life insurance (COLI) and bank-owned life insurance (BOLI) policies will be classified as cash inflows from investing activities. Cash payments for premiums on COLI and BOLI may be classified as cash outflows for investing, operating, or a combination of both. A transferor’s beneficial interest obtained in a securitization of financial assets will be disclosed as a noncash activity, and cash received from beneficial interests will be classified in investing activities. Distributions received from equity method investees will be classified using either a cumulative earnings approach or a look- through approach as an accounting policy election. The ASU contains additional guidance clarifying when an entity should separate cash receipts and cash payments and classify them into more than one class of cash flows (including when reasonable judgment is required to estimate and allocate cash flows) versus when an entity should classify the aggregate amount into one class of cash flows on the basis of predominance. The amendments are effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Early adoption is permitted. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The Company is currently evaluating the potential impact of adoption of this ASU on our consolidated results of operations or financial position. In November 2016, the FASB issued an Update (ASU 2016-18) to its guidance on “Statement of Cash Flows (Topic 230) Restricted Cash” addresses diversity in practice from entities classifying and presenting transfers between cash and restricted cash as operating, investing or financing activities or as a combination of those activities in the statement of cash flows. The ASU requires entities to show the changes in the total cash, cash equivalents, restricted cash and restricted cash equivalents in the Statement of Cash Flows. As a result, transfers between such categories will no longer be presented in the Statement of Cash Flows. ASU 2016-18 is effective for the fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted provided all amendments are adopted in the same period. Management is evaluating the effect that this guidance will have on consolidated financial statements and disclosures. In March 2017, the FASB issued an Update (ASU 2017-07) to its guidance on “Compensation - Retirement Benefits (Topic 715)” to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost. ASU 2017-07 requires that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. If a separate line item or items are used to present the other components of net benefit cost, that line item or items must be appropriately described. If a separate line item or items are not used, the line item or items used in the income statement to present the other components of net benefit cost must be disclosed. The amendments in this Update are effective for public business entities for annual periods beginning after December 15, 2017, including interim periods within those annual periods. Early adoption is permitted as of the beginning of an annual period for which financial statements (interim or annual) have not been issued or made available for issuance. That is, early adoption should be within the first interim period if an employer issues interim financial statements. Disclosures of the nature of and reason for the change in accounting principle are required in the first interim and annual periods of adoption. The amendments in this Update should be applied retrospectively for the presentation of the service cost component and the other components of net periodic pension cost and net periodic postretirement benefit costs in the income statement and prospectively, on and after the effective date, for the capitalization of the service cost component of net period pension cost and net periodic postretirement benefit in assets. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In March 2017, the FASB issued an Update (ASU 2017-08) to its guidance on “Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20) related to premium amortization on purchased callable debt securities. The amendments in this Update shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public business entities, the amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity should apply the amendments in this Update on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. Additionally, in the period of adoption, an entity should provide disclosure about a change in accounting principle. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In May 2017, the FASB issued an Update (ASU 2017-09) to its guidance on “Compensation - Stock Compensation (Topic 718)” such that an entity must apply modification accounting to changes in the terms or conditions of a share-based payment award unless all of the following criteria are met: (1) The fair value of the modified award is the same as the fair value of the original award immediately before the modification. The standard indicates that if the modification does not affect any of the inputs to the valuation technique used to value the award, the entity is not required to estimate the value immediately before and after the modification. (2) The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the modification. (3) The classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the modification. The amendments are effective for all entities for fiscal years beginning after December 15, 2017, including interim periods within those years. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the potential impact of adoption of this ASU on our consolidated results of operations or financial position.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Sep. 30, 2017
Employee Benefit Plans [Abstract]
Employee Benefit Plans	(10) Employee Benefit Plans Defined Benefit Plan The components of net periodic pension cost related to the defined benefit pension plan for the three months ended September 30, 2017 and 2016 were as follows: Three months ended September 30, (In thousands) 2017 2016 Interest cost $ 55 $ 54 Expected return on plan assets (62 ) (69 ) Amortization of net loss 42 49 Net periodic pension cost $ 35 $ 34 The Company does not anticipate that it will make any additional contributions to the defined benefit pension plan during fiscal 2018. SERP The Board of Directors of The Bank of Greene County adopted The Bank of Greene County Supplemental Executive Retirement Plan (the “SERP Plan”), effective as of July 1, 2010. The SERP Plan benefits certain key senior executives of the Bank who have been selected by the Board to participate. The SERP Plan is intended to provide a benefit from the Bank upon retirement, death or disability or voluntary or involuntary termination of service (other than “for cause”). The SERP Plan is more fully described in Note 9 of the consolidated financial statements and notes thereto for the year ended June 30, 2017. The net periodic pension costs related to the SERP Plan for the three months ended September 30, 2017 and 2016 were $101,000 and $77,000, respectively, consisting primarily of service costs and interest costs. The total liability for the SERP Plan was $3.2 million and $2.9 million at September 30, 2017 and June 30, 2017, respectively, and is included in accrued expenses and other liabilities. The total liability for the SERP Plan includes both accumulated net periodic pension costs and participant contributions.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Sep. 30, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation	(11) Stock-Based Compensation At September 30, 2017, Greene County Bancorp, Inc. had two stock-based compensation plans, which are described more fully in Note 10 of the consolidated financial statements and notes thereto for the year ended June 30, 2017. Stock Option Plan At September 30, 2017 and 2016, all granted shares related to the 2008 Option Plan were fully vested, with no remaining compensation cost to be recognized. A summary of the Company’s stock option activity and related information for its option plan for the three months ended September 30, 2017 and 2016 is as follows: 2017 2016 Shares Weighted Average Exercise Price Per Share Shares Weighted Average Exercise Price Per Share Outstanding at beginning of year 37,770 $ 6.25 64,770 $ 6.25 Exercised (1,000 ) $ 6.25 (12,000 ) $ 6.25 Outstanding at period end 36,770 $ 6.25 52,770 $ 6.25 Exercisable at period end 36,770 $ 6.25 52,770 $ 6.25 The intrinsic value of options both outstanding and exercisable was $875,000 at September 30, 2017 and $550,000 at September 30, 2016. The following table presents stock options outstanding and exercisable at September 30, 2017: Options Outstanding and Exercisable Range of Exercise Prices Number Outstanding Weighted Average Remaining Contractual Life Weighted Average Exercise Price $ 6.25 36,770 1.00 $ 6.25 The total intrinsic value of the options exercised during the three months ended September 30, 2017 and 2016, was approximately $23,000 and $206,000, respectively. There were no stock options granted during the three months ended September 30, 2017 or 2016. Phantom Stock Option Plan and Long-term Incentive Plan The Greene County Bancorp, Inc. 2011 Phantom Stock Option and Long-term Incentive Plan (the “Plan”) was adopted effective July 1, 2011, to promote the long-term financial success of the Company and its subsidiaries by providing a means to attract, retain and reward individuals who contribute to such success and to further align their interests with those of the Company’s shareholders. The Plan is intended to provide benefits to employees and directors of the Company or any subsidiary as designated by the Compensation Committee of the Board of Directors of the Company (“Committee”). A phantom stock option represents the right to receive a cash payment on the date the award vests. The Plan is more fully described in Note 10 of the consolidated financial statements and notes thereto for the year ended June 30, 2017. A summary of the Company’s phantom stock option activity and related information for its option plan for the three months ended September 30, 2017 and 2016 is as follows: 2017 2016 Number of options outstanding at beginning of year 1,522,720 1,352,554 Options granted 594,200 578,200 Options paid in cash (3,000 ) - Number of options outstanding at period end 2,113,920 1,930,754 (In thousands) 2017 2016 Cash paid out on options vested $ 7 $ - Compensation expense recognized 360 241 The total liability for the long-term incentive plan was $2.4 million and $2.0 million at September 30, 2017 and June 30, 2017, respectively, and is included in accrued expenses and other liabilities.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Loss	(12) Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss at September 30, 2017 and June 30, 2017 are presented in the following table: (In thousands) Accumulated other comprehensive loss: September 30, 2017 June 30, 2017 Unrealized gain on available-for-sale securities, net of tax $ 847 $ 612 Net losses and past service liability for defined benefit plan, net of tax (1,604 ) (1,604 ) Accumulated other comprehensive loss $ (757 ) $ (992 )

Subsequent events

Subsequent events	3 Months Ended
	Sep. 30, 2017
Subsequent events [Abstract]
Subsequent events	(13) Subsequent events On October 17, 2017, the Board of Directors declared a cash dividend for the quarter ended September 30, 2017 of $0.0975 per share on Greene County Bancorp, Inc.’s common stock. The dividend reflects an annual cash dividend rate of $0.39 per share, which was the same rate as the dividend declared during the previous quarter. The dividend will be payable to stockholders of record as of November 15, 2017, and will be paid on November 30, 2017. The MHC intends to waive its receipt of this dividend. On October 16, 2017, The Bank of Greene County opened its newest full-service branch location at 179 County Route 7A, Copake, New York.

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Sep. 30, 2017
Basis of Presentation [Abstract]
Basis of Presentation	Within the accompanying unaudited consolidated statement of financial condition, and related notes to the consolidated financial statements, June 30, 2017 data was derived from the audited consolidated financial statements of Greene County Bancorp, Inc. (the “Company”) and its wholly owned subsidiaries, The Bank of Greene County (the “Bank”) and Greene Risk Management, Inc., and the Bank’s wholly owned subsidiaries, Greene County Commercial Bank and Greene Property Holdings, Ltd. The consolidated financial statements at and for the three months ended September 30, 2017 and 2016 are unaudited. The financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. To the extent that information and notes required by GAAP for complete financial statements are contained in or are consistent with the audited financial statements incorporated by reference to Greene County Bancorp, Inc.’s Annual Report on Form 10-K for the year ended June 30, 2017, such information and notes have not been duplicated herein. In the opinion of management, all adjustments (consisting of only normal recurring items) necessary for a fair presentation of the financial position and results of operations and cash flows at and for the periods presented have been included. Amounts in the prior year’s consolidated financial statements have been reclassified whenever necessary to conform to the current year’s presentation. These reclassifications, if any, had no effect on net income or retained earnings as previously reported. All material inter-company accounts and transactions have been eliminated in the consolidation. The results of operations and other data for the three months ended September 30, 2017 are not necessarily indicative of results that may be expected for the entire fiscal year ending June 30, 2018. These consolidated financial statements consider events that occurred through the date the consolidated financial statements were issued. CRITICAL ACCOUNTING POLICIES Greene County Bancorp, Inc.’s critical accounting policies relate to the allowance for loan losses and the evaluation of securities for other-than-temporary impairment. The allowance for loan losses is based on management’s estimation of an amount that is intended to absorb losses in the existing portfolio. The allowance for loan losses is established through a provision for loan losses based on management’s evaluation of the risk inherent in the loan portfolio, the composition of the portfolio, specific impaired loans and current economic conditions. Such evaluation, which includes a review of all loans for which full collectability may not be reasonably assured, considers among other matters, the estimated net realizable value or the fair value of the underlying collateral, economic conditions, historical loan loss experience, management’s estimate of probable credit losses and other factors that warrant recognition in providing for the allowance of loan losses. However, this evaluation involves a high degree of complexity and requires management to make subjective judgments that often require assumptions or estimates about highly uncertain matters. This critical accounting policy and its application are periodically reviewed with the Audit Committee and the Board of Directors. There have been no significant changes in the application of this critical accounting policy during the three months ended September 30, 2017. Securities are evaluated for other-than-temporary impairment by performing periodic reviews of individual securities in the investment portfolio. Greene County Bancorp, Inc. makes an assessment to determine whether there have been any events or economic circumstances to indicate that a security, on which there is an unrealized loss, is impaired on an other-than-temporary basis. The Company considers many factors, including the severity and duration of the impairment; the intent and ability of the Company to hold the equity security for a period of time sufficient for a recovery in value; recent events specific to the issuer or industry; and for debt securities, the intent to sell the security, the likelihood to be required to sell the security before it recovers the entire amortized cost, external credit ratings and recent downgrades. The Company is required to record other-than-temporary impairment charges through earnings, if it has the intent to sell, or will more likely than not be required to sell an impaired debt security before a recovery of its amortized cost basis. In addition, the Company is required to record other-than-temporary impairment charges through earnings for the amount of credit losses, regardless of the intent or requirement to sell. Credit loss is measured as the difference between the present value of an impaired debt security’s cash flows and its amortized cost basis. Non-credit related write-downs to fair value must be recorded as decreases to accumulated other comprehensive income as long as the Company has no intent or requirement to sell an impaired security before a recovery of amortized cost basis.

Use of Estimates (Policies)

Use of Estimates (Policies)	3 Months Ended
	Sep. 30, 2017
Use of Estimates [Abstract]
Use of Estimates	The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses and the assessment of other-than-temporary security impairment. While management uses available information to recognize losses on loans, future additions to the allowance for loan losses (the “Allowance”) may be necessary, based on changes in economic conditions, asset quality or other factors. In addition, various regulatory authorities, as an integral part of their examination process, periodically review the Allowance. Such authorities may require the Company to recognize additions to the Allowance based on their judgments of information available to them at the time of their examination. Greene County Bancorp, Inc. makes an assessment to determine whether there have been any events or economic circumstances to indicate that a security on which there is an unrealized loss is impaired on an other-than-temporary basis. The Company considers many factors including the severity and duration of the impairment; the intent and ability of the Company to hold the security for a period of time sufficient for a recovery in value; recent events specific to the issuer or industry; and for debt securities, intent to sell the security, whether it is more likely than not we will be required to sell the security before recovery, whether loss is expected, external credit ratings and recent downgrades. Securities on which there is an unrealized loss that is deemed to be other-than-temporary are written down to fair value through earnings.

Securities (Policies)

Securities (Policies)	3 Months Ended
	Sep. 30, 2017
Securities [Abstract]
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock Federal law requires a member institution of the Federal Home Loan Bank (“FHLB”) system to hold stock of its district FHLB according to a predetermined formula. This stock is restricted in that it can only be sold to the FHLB or to another member institution, and all sales of FHLB stock must be at par. As a result of these restrictions, FHLB stock is carried at cost. FHLB stock is held as a long-term investment and its value is determined based on the ultimate recoverability of the par value. Impairment of this investment is evaluated quarterly and is a matter of judgment that reflects management’s view of the FHLB’s long-term performance, which includes factors such as the following: its operating performance; the severity and duration of declines in the fair value of its net assets related to its capital stock amount; its commitment to make payments required by law or regulation and the level of such payments in relation to its operating performance; the impact of legislative and regulatory changes on the FHLB, and accordingly, on the members of the FHLB; and its liquidity and funding position. After evaluating these considerations, Greene County Bancorp, Inc. concluded that the par value of its investment in FHLB stock will be recovered and, therefore, no other-than-temporary impairment charge was recorded during the three months ended September 30, 2017 or 2016.

Impact of Recent Accounting P25

Impact of Recent Accounting Pronouncements (Policies)	3 Months Ended
	Sep. 30, 2017
Impact of Recent Accounting Pronouncements [Abstract]
Impact of Recent Accounting Pronouncements	In May 2014, the Financial Accounting Standards Board (“FASB”) issued an Accounting Standard Update (“ASU) (ASU 2014-09) to amend its guidance on “Revenue from Contracts with Customers (Topic 606). The objective of the ASU is to align the recognition of revenue with the transfer of promised goods or services provided to customers in an amount that reflects the consideration which the entity expects to be entitled in exchange for those goods or services. This ASU will replace most existing revenue recognition guidance under GAAP when it becomes effective. In August 2015, the FASB issued an amendment (ASU 2015-14) which defers the effective date of this new guidance by one year. More detailed implementation guidance on Topic 606 was issued in March 2016 (ASU 2016-08), April 2016 (ASU 2016-10), May 2016 (ASU 2016-12), December 2016 (ASU 2016-20), February 2017 (ASU 2017-05), and September 2017 (ASU-2017-13) and the effective date and transition requirements for these ASUs are the same as the effective date and transition requirements of ASU 2014-09. The amendments in ASU 2014-09 are effective for public business entities for annual periods, beginning after December 15, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In August 2014, the FASB issued an amendment (ASU 2014-14) to its guidance on “Receivables – Troubled Debt Restructurings by Creditors (Subtopic 310-40)”. The objective of the ASU is to reduce the diversity in how creditors classify government-guaranteed mortgage loans, including FHA or VA guaranteed loans, upon foreclosure, to provide more decision-useful information about a creditor’s foreclosed mortgage loans that are expected to be recovered, at least in part, through government guarantees. The amendments in this Update are effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Public entities would be permitted to elect to early adopt for annual reporting periods beginning after December 15, 2016. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In January 2016, the FASB issued an Update (ASU 2016-01) to its guidance on “Financial Instruments (Subtopic 825-10)”. This amendment addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. These amendments require equity securities to be measured at fair value with changes in the fair value to be recognized through net income. The amendments also simplify the impairment assessment of equity investments without readily determinable fair values by requiring assessment for impairment qualitatively at each reporting period. For public business entities, the amendments in this Update are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption of the amendments in this Update is not permitted. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In February 2016, the FASB issued an Update (ASU 2016-02) to its guidance on “Leases (Topic 842)”. The new leases standard applies a right-of-use (ROU) model that requires a lessee to record, for all leases with a lease term of more than 12 months, an asset representing its right to use the underlying asset and a liability to make lease payments. For leases with a term of 12 months or less, a practical expedient is available whereby a lessee may elect, by class of underlying asset, not to recognize an ROU asset or lease liability. The new leases standard requires a lessor to classify leases as either sales-type, direct financing or operating, similar to existing U.S. GAAP. Classification depends on the same five criteria used by lessees plus certain additional factors. The subsequent accounting treatment for all three lease types is substantially equivalent to existing U.S. GAAP for sales-type leases, direct financing leases, and operating leases. However, the new standard updates certain aspects of the lessor accounting model to align it with the new lessee accounting model, as well as with the new revenue standard under Topic 606. Lessees and lessors are required to provide certain qualitative and quantitative disclosures to enable users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The amendments are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The adoption of this ASU will result in a gross up of the Consolidated Statements of Financial Condition for right-of-use assets and associated lease liabilities for operating leases in which the Company is the lessee. The Company is evaluating the significance and other effects of adoption on the consolidated financial statements and related disclosures. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations. Branch building leases have been reviewed and are considered immaterial to the financial statements; there are no equipment leases to consider. In March 2016, the FASB issued an Update (ASU 2016-09) to its guidance on “Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting”. This amendment is intended to simplify the accounting for stock compensation. The areas for simplification in this Update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public business entities, the amendments in this Update are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any entity in any interim or annual period. The adoption of this guidance did not have a material impact on our consolidated results of operations or financial position. In June 2016, the FASB issued an Update (ASU 2016-13) to its guidance on “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”. ASU 2016-13 requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (CECL) model). Under this model, entities will estimate credit losses over the entire contractual term of the instrument (considering estimated prepayments, but not expected extensions or modifications unless reasonable expectation of a troubled debt restructuring exists) from the date of initial recognition of that instrument. The ASU also replaces the current accounting model for purchased credit impaired loans and debt securities. The allowance for credit losses for purchased financial assets with a more-than insignificant amount of credit deterioration since origination (“PCD assets”), should be determined in a similar manner to other financial assets measured on an amortized cost basis. However, upon initial recognition, the allowance for credit losses is added to the purchase price (“gross up approach”) to determine the initial amortized cost basis. The subsequent accounting for PCD financial assets is the same expected loss model described above. Further, the ASU made certain targeted amendments to the existing impairment model for available-for-sale (AFS) debt securities. For an AFS debt security for which there is neither the intent nor a more-likely-than-not requirement to sell, an entity will record credit losses as an allowance rather than a write-down of the amortized cost basis. For public business entities that are U.S. Securities and Exchange Commission (SEC) filers, the amendments in this Update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. All entities may adopt the amendments in this Update earlier as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. An entity will apply the amendments in this Update through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). The Company is currently evaluating the potential impact on our consolidated results of operations or financial position. The initial adjustment will not be reported in earnings and therefore will not have any material impact on our consolidated results of operations, but it is expected that it will have an impact on our consolidated financial position at the date of adoption of this Update. At this time, we have not calculated the estimated impact that this Update will have on our Allowance for Loan Losses, however, we anticipate it will have a significant impact on the methodology process we utilize to calculate the allowance. Alternative methodologies and software vendors are currently being considered. Data requirements and integrity are being reviewed and enhancements incorporated into standard processes. The Company is in the early stages of evaluation and implementation of the guidance. In August 2016, the FASB issued an Update (ASU 2016-15) which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments are intended to reduce diversity in practice. The amendment covers the following cash flows: Cash payments for debt prepayment or extinguishment costs will be classified in financing activities. Upon settlement of zero-coupon bonds and bonds with insignificant cash coupons, the portion of the payment attributable to imputed interest will be classified as an operating activity, while the portion of the payment attributable to principal will be classified as a financing activity. Cash paid by an acquirer that isn’t soon after a business combination for the settlement of a contingent consideration liability will be separated between financing activities and operating activities. Cash payments up to the amount of the contingent consideration liability recognized at the acquisition date will be classified in financing activities; any excess will be classified in operating activities. Cash paid soon after the business combination will be classified in investing activities. Cash proceeds received from the settlement of insurance claims will be classified on the basis of the related insurance coverage (that is, the nature of the loss). Cash proceeds from lump-sum settlements will be classified based on the nature of each loss included in the settlement. Cash proceeds received from the settlement of corporate-owned life insurance (COLI) and bank-owned life insurance (BOLI) policies will be classified as cash inflows from investing activities. Cash payments for premiums on COLI and BOLI may be classified as cash outflows for investing, operating, or a combination of both. A transferor’s beneficial interest obtained in a securitization of financial assets will be disclosed as a noncash activity, and cash received from beneficial interests will be classified in investing activities. Distributions received from equity method investees will be classified using either a cumulative earnings approach or a look- through approach as an accounting policy election. The ASU contains additional guidance clarifying when an entity should separate cash receipts and cash payments and classify them into more than one class of cash flows (including when reasonable judgment is required to estimate and allocate cash flows) versus when an entity should classify the aggregate amount into one class of cash flows on the basis of predominance. The amendments are effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Early adoption is permitted. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The Company is currently evaluating the potential impact of adoption of this ASU on our consolidated results of operations or financial position. In November 2016, the FASB issued an Update (ASU 2016-18) to its guidance on “Statement of Cash Flows (Topic 230) Restricted Cash” addresses diversity in practice from entities classifying and presenting transfers between cash and restricted cash as operating, investing or financing activities or as a combination of those activities in the statement of cash flows. The ASU requires entities to show the changes in the total cash, cash equivalents, restricted cash and restricted cash equivalents in the Statement of Cash Flows. As a result, transfers between such categories will no longer be presented in the Statement of Cash Flows. ASU 2016-18 is effective for the fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted provided all amendments are adopted in the same period. Management is evaluating the effect that this guidance will have on consolidated financial statements and disclosures. In March 2017, the FASB issued an Update (ASU 2017-07) to its guidance on “Compensation - Retirement Benefits (Topic 715)” to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost. ASU 2017-07 requires that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. If a separate line item or items are used to present the other components of net benefit cost, that line item or items must be appropriately described. If a separate line item or items are not used, the line item or items used in the income statement to present the other components of net benefit cost must be disclosed. The amendments in this Update are effective for public business entities for annual periods beginning after December 15, 2017, including interim periods within those annual periods. Early adoption is permitted as of the beginning of an annual period for which financial statements (interim or annual) have not been issued or made available for issuance. That is, early adoption should be within the first interim period if an employer issues interim financial statements. Disclosures of the nature of and reason for the change in accounting principle are required in the first interim and annual periods of adoption. The amendments in this Update should be applied retrospectively for the presentation of the service cost component and the other components of net periodic pension cost and net periodic postretirement benefit costs in the income statement and prospectively, on and after the effective date, for the capitalization of the service cost component of net period pension cost and net periodic postretirement benefit in assets. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In March 2017, the FASB issued an Update (ASU 2017-08) to its guidance on “Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20) related to premium amortization on purchased callable debt securities. The amendments in this Update shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public business entities, the amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity should apply the amendments in this Update on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. Additionally, in the period of adoption, an entity should provide disclosure about a change in accounting principle. The adoption of this guidance is not expected to have a material impact on our consolidated results of operations or financial position. In May 2017, the FASB issued an Update (ASU 2017-09) to its guidance on “Compensation - Stock Compensation (Topic 718)” such that an entity must apply modification accounting to changes in the terms or conditions of a share-based payment award unless all of the following criteria are met: (1) The fair value of the modified award is the same as the fair value of the original award immediately before the modification. The standard indicates that if the modification does not affect any of the inputs to the valuation technique used to value the award, the entity is not required to estimate the value immediately before and after the modification. (2) The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the modification. (3) The classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the modification. The amendments are effective for all entities for fiscal years beginning after December 15, 2017, including interim periods within those years. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the potential impact of adoption of this ASU on our consolidated results of operations or financial position.

Securities (Tables)

Securities (Tables)	3 Months Ended
	Sep. 30, 2017
Securities [Abstract]
Components of Securities	Securities at September 30, 2017 consisted of the following: (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities available-for-sale: U.S. government sponsored enterprises $ 4,561 $ 137 $ - $ 4,698 State and political subdivisions 67,915 259 1 68,173 Mortgage-backed securities-residential 4,470 69 4 4,535 Mortgage-backed securities-multi-family 20,167 723 16 20,874 Corporate debt securities 2,262 75 2 2,335 Total debt securities 99,375 1,263 23 100,615 Equity securities 62 132 - 194 Total securities available-for-sale 99,437 1,395 23 100,809 Securities held-to-maturity: U.S. government sponsored enterprises 6,000 - 59 5,941 State and political subdivisions 120,168 3,714 136 123,746 Mortgage-backed securities-residential 8,136 339 - 8,475 Mortgage-backed securities-multi-family 88,879 2,453 150 91,182 Corporate debt securities 1,000 - 2 998 Other securities 1,511 20 13 1,518 Total securities held-to-maturity 225,694 6,526 360 231,860 Total securities $ 325,131 $ 7,921 $ 383 $ 332,669 Securities at June 30, 2017 consisted of the following: (In thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Securities available-for-sale: U.S. government sponsored enterprises $ 4,566 $ 151 $ - $ 4,717 State and political subdivisions 57,885 227 - 58,112 Mortgage-backed securities-residential 4,868 72 27 4,913 Mortgage-backed securities-multi-family 20,344 483 62 20,765 Asset-backed securities 1 - - 1 Corporate debt securities 2,765 29 3 2,791 Total debt securities 90,429 962 92 91,299 Equity securities 62 122 - 184 Total securities available-for-sale 90,491 1,084 92 91,483 Securities held-to-maturity: U.S. government sponsored enterprises 6,000 - 53 5,947 State and political subdivisions 115,805 3,434 95 119,144 Mortgage-backed securities-residential 10,798 274 2 11,070 Mortgage-backed securities-multi-family 88,702 1,259 199 89,762 Corporate debt securities 1,000 - 5 995 Other securities 1,525 21 12 1,534 Total securities held-to-maturity 223,830 4,988 366 228,452 Total securities $ 314,321 $ 6,072 $ 458 $ 319,935
Securities in Continuous Unrealized Loss Position	The following table shows fair value and gross unrealized losses, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2017. Less Than 12 Months More Than 12 Months Total (In thousands, except number of securities) Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Securities available-for-sale: State and political subdivisions $ 149 $ 1 1 $ - $ - - $ 149 $ 1 1 Mortgage-backed securities-residential 490 4 1 - - - 490 4 1 Mortgage-backed securities-multi-family 2,986 16 2 - - - 2,986 16 2 Corporate debt securities 261 1 2 499 1 1 760 2 3 Total securities available-for-sale 3,886 22 6 499 1 1 4,385 23 7 Securities held-to-maturity: U.S. government sponsored enterprises 3,958 42 1 1,983 17 1 5,941 59 2 State and political subdivisions 10,455 81 74 2,526 55 28 12,981 136 102 Mortgage-backed securities-multi-family 13,660 125 12 1,421 25 2 15,081 150 14 Corporate debt securities 998 2 2 - - - 998 2 2 Other securities 595 1 2 453 12 1 1,048 13 3 Total securities held-to-maturity 29,666 251 91 6,383 109 32 36,049 360 123 Total securities $ 33,552 $ 273 97 $ 6,882 $ 110 33 $ 40,434 $ 383 130 The following table shows fair value and gross unrealized losses, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2017. Less Than 12 Months More Than 12 Months Total (In thousands, except number of securities) Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Number of Securities Securities available-for-sale: Mortgage-backed securities-residential $ 1,164 $ 27 1 $ - $ - - $ 1,164 $ 27 1 Mortgage-backed securities-multi-family 6,488 62 4 - - - 6,488 62 4 Corporate debt securities 760 3 2 - - - 760 3 2 Total securities available for sale 8,412 92 7 - - - 8,412 92 7 Securities held to maturity: U.S. government sponsored enterprises 5,947 53 2 - - - 5,947 53 2 State and political subdivisions 8,976 76 64 514 19 6 9,490 95 70 Mortgage-backed securities-residential 1,864 2 1 - - - 1,864 2 1 Mortgage-backed securities-multi-family 23,823 199 15 - - - 23,823 199 15 Corporate debt securities 995 5 1 - - - 995 5 1 Other securities 467 11 1 74 1 1 541 12 2 Total securities held to maturity 42,072 346 84 588 20 7 42,660 366 91 Total securities $ 50,484 $ 438 91 $ 588 $ 20 7 $ 51,072 $ 458 98
Investments Classified by Contractual Maturity Date	The estimated fair values of debt securities at September 30, 2017, by contractual maturity are shown below. Expected maturities may differ from contractual maturities, because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. (In thousands) Available-for-sale debt securities Amortized Cost Fair Value Within one year $ 69,916 $ 70,248 After one year through five years 4,822 4,958 After five years through ten years - - After ten years - - Total available-for-sale debt securities 74,738 75,206 Mortgage-backed and asset-backed securities 24,637 25,409 Equity securities 62 194 Total available-for-sale securities 99,437 100,809 Held-to-maturity debt securities Within one year 17,851 18,085 After one year through five years 60,032 61,409 After five years through ten years 38,678 39,787 After ten years 12,118 12,922 Total held-to-maturity debt securities 128,679 132,203 Mortgage-backed 97,015 99,657 Total held-to-maturity securities 225,694 231,860 Total securities $ 325,131 $ 332,669

Loans and Allowance for Loan 27

Loans and Allowance for Loan Losses (Tables)	3 Months Ended
	Sep. 30, 2017
Loans and Allowance for Loan Losses [Abstract]
Major Loan Segments and Classes	Loan segments and classes at September 30, 2017 and June 30, 2017 are summarized as follows: (In thousands) September 30, 2017 June 30, 2017 Residential real estate: Residential real estate $ 247,557 $ 245,331 Residential construction and land 7,986 7,160 Multi-family 9,216 9,199 Commercial real estate: Commercial real estate 261,462 257,964 Commercial construction 31,140 28,430 Consumer loan: Home equity 21,058 21,076 Consumer installment 4,795 4,790 Commercial loans 65,479 60,381 Total gross loans 648,693 634,331 Allowance for loan losses (11,098 ) (11,022 ) Deferred fees and costs 851 878 Loans receivable, net $ 638,446 $ 624,187
Loan Balances by Internal Credit Quality Indicator	Loan balances by internal credit quality indicator at September 30, 2017 are shown below. ( In thousands Performing Watch Special Mention Substandard Total Residential real estate $ 244,334 $ 1,169 $ 91 $ 1,963 $ 247,557 Residential construction and land 7,986 - - - 7,986 Multi-family 8,356 - 773 87 9,216 Commercial real estate 248,918 - 10,572 1,972 261,462 Commercial construction 30,964 - - 176 31,140 Home equity 20,400 - - 658 21,058 Consumer installment 4,763 23 - 9 4,795 Commercial loans 64,230 17 49 1,183 65,479 Total gross loans $ 629,951 $ 1,209 $ 11,485 $ 6,048 $ 648,693 Loan balances by internal credit quality indicator at June 30, 2017 are shown below. (In thousands Performing Watch Special Mention Substandard Total Residential real estate $ 242,592 $ 813 $ 91 $ 1,835 $ 245,331 Residential construction and land 7,160 - - - 7,160 Multi-family 9,110 - - 89 9,199 Commercial real estate 255,090 419 404 2,051 257,964 Commercial construction 28,254 - - 176 28,430 Home equity 20,858 - - 218 21,076 Consumer installment 4,770 10 - 10 4,790 Commercial loans 59,030 - 60 1,291 60,381 Total gross loans $ 626,864 $ 1,242 $ 555 $ 5,670 $ 634,331
Delinquent and/or Nonaccrual Loans by Past Due Status	The following table sets forth information regarding delinquent and/or nonaccrual loans at September 30, 2017: (In thousands) 30-59 days past due 60-89 days past due 90 days or more past due Total past due Current Total Loans Loans on Non- accrual Residential real estate $ 1,704 $ 1,036 $ 967 $ 3,707 $ 243,850 $ 247,557 $ 1,371 Residential construction and land - - - - 7,986 7,986 - Multi-family - - - - 9,216 9,216 - Commercial real estate 170 747 391 1,308 260,154 261,462 1,051 Commercial construction - - 176 176 30,964 31,140 176 Home equity 115 38 176 329 20,729 21,058 333 Consumer installment 48 23 9 80 4,715 4,795 9 Commercial loans - 178 293 471 65,008 65,479 370 Total gross loans $ 2,037 $ 2,022 $ 2,012 $ 6,071 $ 642,622 $ 648,693 $ 3,310 The following table sets forth information regarding delinquent and/or nonaccrual loans at June 30, 2017: (In thousands) 30-59 days past due 60-89 days past due 90 days or more past due Total past due Current Total Loans Loans on Non- accrual Residential real estate $ 2,088 $ 515 $ 935 $ 3,538 $ 241,793 $ 245,331 $ 1,240 Residential construction and land - - - - 7,160 7,160 - Multi-family - - - - 9,199 9,199 - Commercial real estate 74 1,070 540 1,684 256,280 257,964 1,452 Commercial construction - 176 - 176 28,254 28,430 176 Home equity 220 186 33 439 20,637 21,076 218 Consumer installment 22 10 10 42 4,748 4,790 10 Commercial loans 18 186 202 406 59,975 60,381 476 Total gross loans $ 2,422 $ 2,143 $ 1,720 $ 6,285 $ 628,046 $ 634,331 $ 3,572
Nonaccrual Loans, Interest Income Data	The table below details additional information related to nonaccrual loans for the three months ended September 30: (In thousands) 2017 2016 Interest income that would have been recorded if loans had been performing in accordance with original terms $ 78 $ 80 Interest income that was recorded on nonaccrual loans 34 28
Impaired Loans by Loan Portfolio Class	The tables below detail additional information on impaired loans at the date or periods indicated: At September 30, 2017 For the three months ended September 30, 2017 (In thousands) Recorded Investment Unpaid Principal Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Commercial real estate $ 805 $ 805 $ - $ 807 $ 8 Home equity 181 181 - 183 - Commercial loans 370 370 - 245 - Total impaired loans with no allowance 1,356 1,356 - 1,235 8 With an allowance recorded: Residential real estate 1,706 1,706 335 1,536 11 Commercial real estate 425 425 108 430 - Commercial construction 176 176 22 176 - Home equity 325 325 63 325 3 Total impaired loans with allowance 2,632 2,632 528 2,467 14 Total impaired: Residential real estate 1,706 1,706 335 1,536 11 Commercial real estate 1,230 1,230 108 1,237 8 Commercial construction 176 176 22 176 - Home equity 506 506 63 508 3 Commercial loans 370 370 - 245 - Total impaired loans $ 3,988 $ 3,988 $ 528 $ 3,702 $ 22 At June 30, 2017 For the three months ended September 30, 2016 (In thousands) Recorded Investment Unpaid Principal Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Residential real estate $ - $ - $ - $ 375 $ - Commercial real estate 809 809 - 1,021 10 Home equity 186 186 - 5 - Commercial loans 186 186 - - - Total impaired loans with no allowance 1,181 1,181 - 1,401 10 With an allowance recorded: Residential real estate 1,455 1,455 278 1,345 12 Commercial real estate 440 440 135 402 4 Commercial construction 176 176 23 - - Commercial loans - - - 83 2 Total impaired loans with allowance 2,071 2,071 436 1,830 18 Total impaired loans: Residential real estate 1,455 1,455 278 1,720 12 Commercial real estate 1,249 1,249 135 1,423 14 Commercial construction 176 176 23 - - Home equity 186 186 - 5 - Commercial loans 186 186 - 83 2 Total impaired loans $ 3,252 $ 3,252 $ 436 $ 3,231 $ 28
Loans Modified as Troubled Debt Restructuring	The table below details loans that have been modified as a troubled debt restructuring during the three months ended September 30, 2017 or 2016. (D ollars in thousands) Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Current Outstanding Recorded Investment September 30, 2017 Home equity 1 $ 325 $ 325 $ 325 September 30, 2016 None
Activity and Allocation of Allowance for Loan Losses	The following tables set forth the activity and allocation of the allowance for loan losses by loan category during and at the periods indicated. The allowance is allocated to each loan category based on historical loss experience and economic conditions. Activity for the three months ended September 30, 2017 (In thousands) Balance at June 30, 2017 Charge-offs Recoveries Provision Balance at September 30, 2017 Residential real estate $ 2,289 $ 44 $ - $ (169 ) $ 2,076 Residential construction and land 89 - - 4 93 Multi-family 43 - - 33 76 Commercial real estate 5,589 - - 170 5,759 Commercial construction 687 - - 63 750 Home equity 234 - - 81 315 Consumer installment 231 88 18 42 203 Commercial loans 1,680 157 - 225 1,748 Unallocated 180 - - (102 ) 78 Total $ 11,022 $ 289 $ 18 $ 347 $ 11,098 Allowance for Loan Losses Loans Receivable Ending Balance At September 30, 2017 Impairment Analysis Ending Balance At September 30, 2017 Impairment Analysis (In thousands) Individually Evaluated Collectively Evaluated Individually Evaluated Collectively Evaluated Residential real estate $ 335 $ 1,741 $ 1,706 $ 245,851 Residential construction and land - 93 - 7,986 Multi-family - 76 - 9,216 Commercial real estate 108 5,651 1,230 260,232 Commercial construction 22 728 176 30,964 Home equity 63 252 506 20,552 Consumer installment - 203 - 4,795 Commercial loans - 1,748 370 65,109 Unallocated - 78 - - Total $ 528 $ 10,570 $ 3,988 $ 644,705 Activity for the three months ended September 30, 2016 (In thousands) Balance at June 30, 2016 Charge-offs Recoveries Provision Balance at September 30, 2016 Residential real estate $ 2,396 $ - $ - $ (154 ) $ 2,242 Residential construction and land 75 - - (12 ) 63 Multi-family 22 - - (4 ) 18 Commercial real estate 4,541 - - 440 4,981 Commercial construction 502 - - 126 628 Home equity 309 - - (58 ) 251 Consumer installment 228 72 17 (5 ) 168 Commercial loans 1,412 - 3 77 1,492 Unallocated - - - 133 133 Total $ 9,485 $ 72 $ 20 $ 543 $ 9,976 Allowance for Loan Losses Loans Receivable Ending Balance At June 30, 2017 Impairment Analysis Ending Balance At June 30, 2017 Impairment Analysis (In thousands) Individually Evaluated Collectively Evaluated Individually Evaluated Collectively Evaluated Residential real estate $ 278 $ 2,011 $ 1,455 $ 243,876 Residential construction and land - 89 - 7,160 Multi-family - 43 - 9,199 Commercial real estate 135 5,454 1,249 256,715 Commercial construction 23 664 176 28,254 Home equity - 234 186 20,890 Consumer installment - 231 - 4,790 Commercial loans - 1,680 186 60,195 Unallocated - 180 - - Total $ 436 $ 10,586 $ 3,252 $ 631,079
Schedule of Foreclosed Real Estate	The following table sets forth information regarding FRE at September 30, 2017 and June 30, 2017: (in thousands) September 30, 2017 June 30, 2017 Commercial real estate $ 752 $ 799 Total foreclosed real estate $ 752 $ 799

Fair Value Measurements and F28

Fair Value Measurements and Fair Value of Financial Instruments (Tables)	3 Months Ended
	Sep. 30, 2017
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Assets Measured at Fair Value on Recurring Basis	For assets measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used are as follows: Fair Value Measurements Using Quoted Prices In Active Markets For Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) September 30, 2017 (Level 1) (Level 2) (Level 3) Assets: U.S. Government sponsored enterprises $ 4,698 $ - $ 4,698 $ - State and political subdivisions 68,173 - 68,173 - Mortgage-backed securities-residential 4,535 - 4,535 - Mortgage-backed securities-multi-family 20,874 - 20,874 - Corporate debt securities 2,335 2,335 - - Equity securities 194 194 - - Securities available-for-sale $ 100,809 $ 2,529 $ 98,280 $ - Fair Value Measurements Using Quoted Prices In Active Markets For Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) June 30, 2017 (Level 1) (Level 2) (Level 3) Assets: U.S. Government sponsored enterprises $ 4,717 $ - $ 4,717 $ - State and political subdivisions 58,112 - 58,112 - Mortgage-backed securities-residential 4,913 - 4,913 - Mortgage-backed securities-multi-family 20,765 - 20,765 - Asset-backed securities 1 1 - - Corporate debt securities 2,791 2,791 - - Equity securities 184 184 - - Securities available-for-sale $ 91,483 $ 2,976 $ 88,507 $ -
Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	These measurements are classified as Level 3 within the fair value hierarchy. Fair Value Measurements Using (In thousands) Recorded Investment Related Allowance Fair Value (Level 1) (Level 2) (Level 3) September 30, 2017 Impaired loans $ 2,286 $ 528 $ 1,758 $ - $ - $ 1,758 Foreclosed real estate 752 - 752 - - 752 June 30, 2017 Impaired loans $ 1,822 $ 436 $ 1,386 $ - $ - $ 1,386 Foreclosed real estate 799 - 799 - - 799
Additional Quantitative Information about Assets Measured at Fair Value on Nonrecurring Basis	The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which Level 3 inputs were utilized to determine fair value: (Dollars in thousands) Fair Value Valuation Technique Unobservable Input Range Weighted Average September 30, 2017 Impaired Loans $ 1,220 Appraisal of collateral (1) Appraisal adjustments (2) 26.58%-31.86 % 28.34 % Liquidation expenses (3) 4.09%-7.26 % 5.15 % 538 Discounted cash flow Discount rate 4.19%-6.63 % 5.36 % Foreclosed real estate 752 Appraisal of collateral (1) Appraisal adjustments (2) 0.00-0.00 % 0.00 % Liquidation expenses (3) 11.53%-18.80 % 16.62 % June 30, 2017 Impaired loans $ 845 Appraisal of collateral (1) Appraisal adjustments (2) 25.00%-42.52 % 28.46 % Liquidation expenses (3) 3.45%-7.38 % 5.93 % 541 Discounted cash flow Discount rate 4.19%-6.63 % 5.36 % Foreclosed real estate 799 Appraisal of collateral (1) Appraisal adjustments (2) 0.00-0.00 % 0.00 % Liquidation expenses (3) 11.64%-17.92 % 16.29 % (1) Fair value is generally determined through independent third-party appraisals of the underlying collateral, which generally includes various Level 3 inputs which are not observable. (2) Appraisals may be adjusted downwards by management for qualitative factors such as economic conditions. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received or age of the appraisal. (3) Appraisals are adjusted downwards by management for qualitative factors such as the estimated costs to liquidate the collateral.
Carrying Amounts and Estimated Fair Value of Financial Instruments	The carrying amounts and estimated fair value of financial instruments are as follows: (In thousands) September 30, 2017 Fair Value Measurements Using Carrying Amount Fair Value (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 46,419 $ 46,419 $ 46,419 $ - $ - Long term certificate of deposit 2,145 2,145 2,145 - - Securities available-for-sale 100,809 100,809 2,529 98,280 - Securities held-to-maturity 225,694 231,860 - 231,860 - Federal Home Loan Bank stock 1,575 1,575 - 1,575 - Net loans 638,446 643,851 - - 643,851 Accrued interest receivable 4,374 4,374 - 4,374 - Deposits 917,569 917,730 - 917,730 - Borrowings 20,850 20,708 - 20,708 - Accrued interest payable 80 80 - 80 - (In thousands) June 30, 2017 Fair Value Measurements Using Carrying Amount Fair Value (Level 1) (Level 2) (Level 3) Cash and cash equivalents $ 16,277 $ 16,277 $ 16,277 $ - $ - Long term certificate of deposit 2,145 2,145 2,145 - - Securities available-for-sale 91,483 91,483 2,976 88,507 - Securities held-to-maturity 223,830 228,452 - 228,452 - Federal Home Loan Bank stock 2,131 2,131 - 2,131 - Net loans 624,187 629,690 - - 629,690 Accrued interest receivable 4,033 4,033 - 4,033 - Deposits 859,535 859,715 - 859,715 - Borrowings 29,550 29,411 - 29,411 - Accrued interest payable 92 92 - 92 -

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	There were no anti-dilutive securities or contracts outstanding during the three months ended September 30, 2017 and 2016. For the three months ended September 30, 2017 2016 Net Income $ 3,472,000 $ 2,507,000 Weighted Average Shares – Basic 8,502,734 8,483,179 Effect of Dilutive Stock Options 28,508 14,490 Weighted Average Shares - Dilute 8,531,242 8,497,669 Earnings per share - Basic $ 0.41 $ 0.30 Earnings per share - Diluted $ 0.41 $ 0.30

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Sep. 30, 2017
Employee Benefit Plans [Abstract]
Schedule of Net Periodic Pension Costs	The components of net periodic pension cost related to the defined benefit pension plan for the three months ended September 30, 2017 and 2016 were as follows: Three months ended September 30, (In thousands) 2017 2016 Interest cost $ 55 $ 54 Expected return on plan assets (62 ) (69 ) Amortization of net loss 42 49 Net periodic pension cost $ 35 $ 34

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Sep. 30, 2017
Stock-Based Compensation [Abstract]
Summary of Stock Option Activity	A summary of the Company’s stock option activity and related information for its option plan for the three months ended September 30, 2017 and 2016 is as follows: 2017 2016 Shares Weighted Average Exercise Price Per Share Shares Weighted Average Exercise Price Per Share Outstanding at beginning of year 37,770 $ 6.25 64,770 $ 6.25 Exercised (1,000 ) $ 6.25 (12,000 ) $ 6.25 Outstanding at period end 36,770 $ 6.25 52,770 $ 6.25 Exercisable at period end 36,770 $ 6.25 52,770 $ 6.25
Schedule of Options Outstanding and Exercisable	The following table presents stock options outstanding and exercisable at September 30, 2017: Options Outstanding and Exercisable Range of Exercise Prices Number Outstanding Weighted Average Remaining Contractual Life Weighted Average Exercise Price $ 6.25 36,770 1.00 $ 6.25
Summary of Phantom Stock Option Activity and Related Information	A summary of the Company’s phantom stock option activity and related information for its option plan for the three months ended September 30, 2017 and 2016 is as follows: 2017 2016 Number of options outstanding at beginning of year 1,522,720 1,352,554 Options granted 594,200 578,200 Options paid in cash (3,000 ) - Number of options outstanding at period end 2,113,920 1,930,754 (In thousands) 2017 2016 Cash paid out on options vested $ 7 $ - Compensation expense recognized 360 241

Accumulated Other Comprehensi32

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Loss [Abstract]
Components of Accumulated Other Comprehensive Loss	The components of accumulated other comprehensive loss at September 30, 2017 and June 30, 2017 are presented in the following table: (In thousands) Accumulated other comprehensive loss: September 30, 2017 June 30, 2017 Unrealized gain on available-for-sale securities, net of tax $ 847 $ 612 Net losses and past service liability for defined benefit plan, net of tax (1,604 ) (1,604 ) Accumulated other comprehensive loss $ (757 ) $ (992 )

Nature of Operations (Details)

Nature of Operations (Details)	Sep. 30, 2017OfficeSubsidiary
Nature of Operations [Abstract]
Number of full-service offices | Office	14
Number of subsidiaries | Subsidiary	2

Securities (Details)

Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Available-for-sale debt securities [Abstract]
Amortized cost	$ 99,375	$ 90,429
Gross unrealized gains	1,263	962
Gross unrealized losses	23	92
Estimated fair value	100,615	91,299
Available-for-sale equity securities and other [Abstract]
Amortized cost	62	62
Gross unrealized gains	132	122
Gross unrealized losses	0	0
Estimated fair value	194	184
Available-for-sale securities [Abstract]
Amortized cost	99,437	90,491
Gross unrealized gains	1,395	1,084
Gross unrealized losses	23	92
Estimated fair value	100,809	91,483
Held-to-maturity securities [Abstract]
Amortized cost	225,694	223,830
Gross unrealized gains	6,526	4,988
Gross unrealized losses	360	366
Estimated fair value	231,860	228,452
Total Securities [Abstract]
Amortized cost	325,131	314,321
Gross unrealized gains	7,921	6,072
Gross unrealized losses	383	458
Estimated fair value	332,669	319,935
U.S. Government Sponsored Enterprises [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,561	4,566
Gross unrealized gains	137	151
Gross unrealized losses	0	0
Estimated fair value	4,698	4,717
State and Political Subdivisions [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	67,915	57,885
Gross unrealized gains	259	227
Gross unrealized losses	1	0
Estimated fair value	68,173	58,112
Mortgage-backed Securities-Residential [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	4,470	4,868
Gross unrealized gains	69	72
Gross unrealized losses	4	27
Estimated fair value	4,535	4,913
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	20,167	20,344
Gross unrealized gains	723	483
Gross unrealized losses	16	62
Estimated fair value	20,874	20,765
Asset-backed Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost		1
Gross unrealized gains		0
Gross unrealized losses		0
Estimated fair value		1
Corporate Debt Securities [Member]
Available-for-sale debt securities [Abstract]
Amortized cost	2,262	2,765
Gross unrealized gains	75	29
Gross unrealized losses	2	3
Estimated fair value	2,335	2,791
U.S. Government Sponsored Enterprises [Member]
Held-to-maturity securities [Abstract]
Amortized cost	6,000	6,000
Gross unrealized gains	0	0
Gross unrealized losses	59	53
Estimated fair value	5,941	5,947
State and Political Subdivisions [Member]
Held-to-maturity securities [Abstract]
Amortized cost	120,168	115,805
Gross unrealized gains	3,714	3,434
Gross unrealized losses	136	95
Estimated fair value	123,746	119,144
Mortgage-backed Securities-Residential [Member]
Held-to-maturity securities [Abstract]
Amortized cost	8,136	10,798
Gross unrealized gains	339	274
Gross unrealized losses	0	2
Estimated fair value	8,475	11,070
Mortgage-backed Securities-Multi-family [Member]
Held-to-maturity securities [Abstract]
Amortized cost	88,879	88,702
Gross unrealized gains	2,453	1,259
Gross unrealized losses	150	199
Estimated fair value	91,182	89,762
Corporate Debt Securities [Member]
Held-to-maturity securities [Abstract]
Amortized cost	1,000	1,000
Gross unrealized gains	0	0
Gross unrealized losses	2	5
Estimated fair value	998	995
Other Securities [Member]
Held-to-maturity securities [Abstract]
Amortized cost	1,511	1,525
Gross unrealized gains	20	21
Gross unrealized losses	13	12
Estimated fair value	$ 1,518	$ 1,534

Securities, Securities in Conti

Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2017USD ($)Security	Sep. 30, 2016USD ($)	Jun. 30, 2017USD ($)Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 3,886		$ 8,412
Less than 12 months, unrealized losses	$ 22		$ 92
Less than 12 months, number of securities | Security	6		7
More than 12 months, fair value	$ 499		$ 0
More than 12 months, unrealized losses	$ 1		$ 0
More than 12 months, number of securities | Security	1		0
Total, fair value	$ 4,385		$ 8,412
Total, unrealized losses	$ 23		$ 92
Total, number of securities | Security	7		7
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 29,666		$ 42,072
Less than 12 months, unrealized losses	$ 251		$ 346
Less than 12 months, number of securities | Security	91		84
More than 12 months, fair value	$ 6,383		$ 588
More than 12 months, unrealized losses	$ 109		$ 20
More than 12 months, number of securities | Security	32		7
Total, fair value	$ 36,049		$ 42,660
Total, unrealized losses	$ 360		$ 366
Total, number of securities | Security	123		91
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 33,552		$ 50,484
Less than 12 months, unrealized losses	$ 273		$ 438
Less than 12 months, number of securities | Security	97		91
More than 12 months, fair value	$ 6,882		$ 588
More than 12 months, unrealized losses	$ 110		$ 20
More than 12 months, number of securities | Security	33		7
Total, fair value	$ 40,434		$ 51,072
Total, unrealized losses	$ 383		$ 458
Total, number of securities | Security	130		98
Proceeds from sale of available-for-sale securities, debt	$ 0	$ 0
Gross realized gains (losses) on sale of available-for-sale securities	0	0
Other-than-temporary impairment losses	0	$ 0
State and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	149
Less than 12 months, unrealized losses	$ 1
Less than 12 months, number of securities | Security	1
More than 12 months, fair value	$ 0
More than 12 months, unrealized losses	$ 0
More than 12 months, number of securities | Security	0
Total, fair value	$ 149
Total, unrealized losses	$ 1
Total, number of securities | Security	1
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 490		$ 1,164
Less than 12 months, unrealized losses	$ 4		$ 27
Less than 12 months, number of securities | Security	1		1
More than 12 months, fair value	$ 0		$ 0
More than 12 months, unrealized losses	$ 0		$ 0
More than 12 months, number of securities | Security	0		0
Total, fair value	$ 490		$ 1,164
Total, unrealized losses	$ 4		$ 27
Total, number of securities | Security	1		1
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 2,986		$ 6,488
Less than 12 months, unrealized losses	$ 16		$ 62
Less than 12 months, number of securities | Security	2		4
More than 12 months, fair value	$ 0		$ 0
More than 12 months, unrealized losses	$ 0		$ 0
More than 12 months, number of securities | Security	0		0
Total, fair value	$ 2,986		$ 6,488
Total, unrealized losses	$ 16		$ 62
Total, number of securities | Security	2		4
Corporate Debt Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 261		$ 760
Less than 12 months, unrealized losses	$ 1		$ 3
Less than 12 months, number of securities | Security	2		2
More than 12 months, fair value	$ 499		$ 0
More than 12 months, unrealized losses	$ 1		$ 0
More than 12 months, number of securities | Security	1		0
Total, fair value	$ 760		$ 760
Total, unrealized losses	$ 2		$ 3
Total, number of securities | Security	3		2
U.S. Government Sponsored Enterprises [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 3,958		$ 5,947
Less than 12 months, unrealized losses	$ 42		$ 53
Less than 12 months, number of securities | Security	1		2
More than 12 months, fair value	$ 1,983		$ 0
More than 12 months, unrealized losses	$ 17		$ 0
More than 12 months, number of securities | Security	1		0
Total, fair value	$ 5,941		$ 5,947
Total, unrealized losses	$ 59		$ 53
Total, number of securities | Security	2		2
State and Political Subdivisions [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 10,455		$ 8,976
Less than 12 months, unrealized losses	$ 81		$ 76
Less than 12 months, number of securities | Security	74		64
More than 12 months, fair value	$ 2,526		$ 514
More than 12 months, unrealized losses	$ 55		$ 19
More than 12 months, number of securities | Security	28		6
Total, fair value	$ 12,981		$ 9,490
Total, unrealized losses	$ 136		$ 95
Total, number of securities | Security	102		70
Mortgage-backed Securities-Residential [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value			$ 1,864
Less than 12 months, unrealized losses			$ 2
Less than 12 months, number of securities | Security			1
More than 12 months, fair value			$ 0
More than 12 months, unrealized losses			$ 0
More than 12 months, number of securities | Security			0
Total, fair value			$ 1,864
Total, unrealized losses	$ 0		$ 2
Total, number of securities | Security			1
Mortgage-backed Securities-Multi-family [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	13,660		$ 23,823
Less than 12 months, unrealized losses	$ 125		$ 199
Less than 12 months, number of securities | Security	12		15
More than 12 months, fair value	$ 1,421		$ 0
More than 12 months, unrealized losses	$ 25		$ 0
More than 12 months, number of securities | Security	2		0
Total, fair value	$ 15,081		$ 23,823
Total, unrealized losses	$ 150		$ 199
Total, number of securities | Security	14		15
Corporate Debt Securities [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 998		$ 995
Less than 12 months, unrealized losses	$ 2		$ 5
Less than 12 months, number of securities | Security	2		1
More than 12 months, fair value	$ 0		$ 0
More than 12 months, unrealized losses	$ 0		$ 0
More than 12 months, number of securities | Security	0		0
Total, fair value	$ 998		$ 995
Total, unrealized losses	$ 2		$ 5
Total, number of securities | Security	2		1
Other Securities [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 595		$ 467
Less than 12 months, unrealized losses	$ 1		$ 11
Less than 12 months, number of securities | Security	2		1
More than 12 months, fair value	$ 453		$ 74
More than 12 months, unrealized losses	$ 12		$ 1
More than 12 months, number of securities | Security	1		1
Total, fair value	$ 1,048		$ 541
Total, unrealized losses	$ 13		$ 12
Total, number of securities | Security	3		2

Securities, Securities by Contr

Securities, Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Available-for-sale Debt Securities, Amortized Cost [Abstract]
Within one year	$ 69,916
After one year through five years	4,822
After five years through ten years	0
After ten years	0
Total available for sale debt securities	74,738
Mortgage-backed and asset-backed securities	24,637
Equity securities	62	$ 62
Amortized cost	99,437	90,491
Available-for-sale Debt Securities, Fair Value [Abstract]
Within one year	70,248
After one through five years	4,958
After five through ten years	0
After ten years	0
Total available-for-sale debt securities	75,206
Mortgage-backed and asset-backed securities	25,409
Equity securities	194	184
Estimated fair value	100,809	91,483
Held-to-maturity Debt Securities, Amortized Cost [Abstract]
Within one year	17,851
After one year through five years	60,032
After five years through ten years	38,678
After ten years	12,118
Total held-to-maturity debt securities	128,679
Mortgage-backed	97,015
Amortized cost	225,694	223,830
Held-to-maturity Debt Securities, Fair Value [Abstract]
Within one year	18,085
After one year through five years	61,409
After five years through ten years	39,787
After ten years	12,922
Total held-to-maturity debt securities	132,203
Mortgage-backed	99,657
Estimated fair value	231,860	228,452
Total Securities [Abstract]
Amortized cost	325,131	314,321
Estimated fair value	332,669	319,935
Securities pledged as collateral for deposits in excess of FDIC insurance limits, fair value	319,100	305,700
Securities pledged as collateral for potential borrowings at the Federal Reserve Bank discount window	$ 2,300	$ 2,800

Securities, Federal Home Loan B

Securities, Federal Home Loan Bank Stock (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Federal Home Loan Bank Stock [Member]
Schedule of Held-to-maturity Securities [Line Items]
Other-than-temporary impairment losses	$ 0	$ 0

Loans and Allowance for Loan 38

Loans and Allowance for Loan Losses, Major Loan Segments and Classes (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Jun. 30, 2016
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	$ 648,693	$ 634,331
Allowance for loan losses	(11,098)	(11,022)	$ (9,976)	$ (9,485)
Deferred fees and costs	851	878
Net loans receivable	638,446	624,187
Residential Real Estate [Member] | Residential Real Estate [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	247,557	245,331
Allowance for loan losses	(2,076)	(2,289)	(2,242)	(2,396)
Residential Real Estate [Member] | Construction and Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	7,986	7,160
Allowance for loan losses	(93)	(89)	(63)	(75)
Residential Real Estate [Member] | Multi-family [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	9,216	9,199
Allowance for loan losses	(76)	(43)	(18)	(22)
Commercial Real Estate [Member] | Real Estate [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	261,462	257,964
Allowance for loan losses	(5,759)	(5,589)	(4,981)	(4,541)
Commercial Real Estate [Member] | Construction [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	31,140	28,430
Allowance for loan losses	(750)	(687)	(628)	(502)
Consumer Loan [Member] | Home Equity [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	21,058	21,076
Allowance for loan losses	(315)	(234)	(251)	(309)
Consumer Loan [Member] | Consumer Installment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	4,795	4,790
Allowance for loan losses	(203)	(231)	(168)	(228)
Commercial Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	65,479	60,381
Allowance for loan losses	$ (1,748)	$ (1,680)	$ (1,492)	$ (1,412)

Loans and Allowance for Loan 39

Loans and Allowance for Loan Losses, Loan Balances by Internal Credit Quality Indicator (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2017USD ($)Segment	Jun. 30, 2017USD ($)
Financing Receivable, Recorded Investment [Line Items]
Number of segments within loan portfolio | Segment	4
Total gross loans	$ 648,693	$ 634,331
Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	629,951	626,864
Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,209	1,242
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	11,485	555
Increase in loans	10,900
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	6,048	5,670
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 0	0
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan-to-value ratio	89.90%
Residential Real Estate [Member] | Residential Mortgage with Private Mortgage Insurance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan-to-value ratio	95.00%
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 247,557	245,331
Residential Real Estate [Member] | Residential Real Estate [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	244,334	242,592
Residential Real Estate [Member] | Residential Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,169	813
Residential Real Estate [Member] | Residential Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	91	91
Residential Real Estate [Member] | Residential Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,963	1,835
Residential Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	7,986	7,160
Residential Real Estate [Member] | Construction and Land [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	7,986	7,160
Residential Real Estate [Member] | Construction and Land [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Residential Real Estate [Member] | Construction and Land [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Residential Real Estate [Member] | Construction and Land [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Residential Real Estate [Member] | Multi-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	9,216	9,199
Residential Real Estate [Member] | Multi-family [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	8,356	9,110
Residential Real Estate [Member] | Multi-family [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Residential Real Estate [Member] | Multi-family [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	773	0
Residential Real Estate [Member] | Multi-family [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	87	89
Commercial Real Estate [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	261,462	257,964
Commercial Real Estate [Member] | Real Estate [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	248,918	255,090
Commercial Real Estate [Member] | Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	419
Commercial Real Estate [Member] | Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	10,572	404
Commercial Real Estate [Member] | Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	1,972	2,051
Commercial Real Estate [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	31,140	28,430
Commercial Real Estate [Member] | Construction [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	30,964	28,254
Commercial Real Estate [Member] | Construction [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Commercial Real Estate [Member] | Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Commercial Real Estate [Member] | Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	176	176
Consumer Loan [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	21,058	21,076
Consumer Loan [Member] | Home Equity [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	20,400	20,858
Consumer Loan [Member] | Home Equity [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Consumer Loan [Member] | Home Equity [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Consumer Loan [Member] | Home Equity [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	658	218
Consumer Loan [Member] | Consumer Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	4,795	4,790
Consumer Loan [Member] | Consumer Installment [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	4,763	4,770
Consumer Loan [Member] | Consumer Installment [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	23	10
Consumer Loan [Member] | Consumer Installment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	0	0
Consumer Loan [Member] | Consumer Installment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	9	10
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	65,479	60,381
Commercial Loans [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	64,230	59,030
Commercial Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	17	0
Commercial Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	49	60
Commercial Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 1,183	$ 1,291

Loans and Allowance for Loan 40

Loans and Allowance for Loan Losses, Delinquent and Nonaccrual Loans by Past Due Status (Details) $ in Thousands	Sep. 30, 2017USD ($)Loan	Jun. 30, 2017USD ($)Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 6,071	$ 6,285
Current	642,622	628,046
Total loans	648,693	634,331
Loans on non-accrual	3,310	3,572
Loans in the process of foreclosure	1,600	1,600
Nonaccrual loans with recent history of delinquency greater than 90 days	1,400	1,900
Nonaccrual loans making payments pursuant to forbearance agreements	228
Accruing loans delinquent more than 90 days	68	69
30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,037	2,422
60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,022	2,143
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 2,012	$ 1,720
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of loans in the process of foreclosure | Loan	12	12
Loans in the process of foreclosure	$ 1,100	$ 967
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,707	3,538
Current	243,850	241,793
Total loans	247,557	245,331
Loans on non-accrual	1,371	1,240
Residential Real Estate [Member] | Residential Real Estate [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,704	2,088
Residential Real Estate [Member] | Residential Real Estate [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,036	515
Residential Real Estate [Member] | Residential Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	967	935
Residential Real Estate [Member] | Construction and Land [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Current	7,986	7,160
Total loans	7,986	7,160
Loans on non-accrual	0	0
Residential Real Estate [Member] | Construction and Land [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Residential Real Estate [Member] | Construction and Land [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Residential Real Estate [Member] | Construction and Land [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Residential Real Estate [Member] | Multi-family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Current	9,216	9,199
Total loans	9,216	9,199
Loans on non-accrual	0	0
Residential Real Estate [Member] | Multi-family [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Residential Real Estate [Member] | Multi-family [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Residential Real Estate [Member] | Multi-family [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Commercial Real Estate [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,308	1,684
Current	260,154	256,280
Total loans	261,462	257,964
Loans on non-accrual	1,051	1,452
Commercial Real Estate [Member] | Real Estate [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	170	74
Commercial Real Estate [Member] | Real Estate [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	747	1,070
Commercial Real Estate [Member] | Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	391	540
Commercial Real Estate [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	176	176
Current	30,964	28,254
Total loans	31,140	28,430
Loans on non-accrual	176	176
Commercial Real Estate [Member] | Construction [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Commercial Real Estate [Member] | Construction [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	176
Commercial Real Estate [Member] | Construction [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	176	0
Consumer Loan [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	329	439
Current	20,729	20,637
Total loans	21,058	21,076
Loans on non-accrual	333	218
Consumer Loan [Member] | Home Equity [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	115	220
Consumer Loan [Member] | Home Equity [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	38	186
Consumer Loan [Member] | Home Equity [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	176	33
Consumer Loan [Member] | Consumer Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	80	42
Current	4,715	4,748
Total loans	4,795	4,790
Loans on non-accrual	9	10
Consumer Loan [Member] | Consumer Installment [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	48	22
Consumer Loan [Member] | Consumer Installment [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	23	10
Consumer Loan [Member] | Consumer Installment [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	9	10
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	471	406
Current	65,008	59,975
Total loans	65,479	60,381
Loans on non-accrual	370	476
Commercial Loans [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	18
Commercial Loans [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	178	186
Commercial Loans [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 293	$ 202

Loans and Allowance for Loan 41

Loans and Allowance for Loan Losses, Nonaccrual Loans, Interest Income Data (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Loans and Allowance for Loan Losses [Abstract]
Interest income that would have been recorded if loans had been performing in accordance with original	$ 78	$ 80
Interest income that was recorded on nonaccrual loans	$ 34	$ 28

Loans and Allowance for Loan 42

Loans and Allowance for Loan Losses, Impaired Loans By Loan Portfolio Class (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
With no related allowance recorded [Abstract]
Recorded investment	$ 1,356		$ 1,181
Unpaid principal	1,356		1,181
Average recorded investment	1,235	$ 1,401
Interest income recognized	8	10
With an allowance recorded [Abstract]
Recorded investment	2,632		2,071
Unpaid principal	2,632		2,071
Related allowance	528		436
Average recorded investment	2,467	1,830
Interest income recognized	14	18
Total impaired [Abstract]
Recorded investment	3,988		3,252
Unpaid principal	3,988		3,252
Related allowance	528		436
Average recorded investment	3,702	3,231
Interest income recognized	22	28
Residential Real Estate [Member] | Residential Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment			0
Unpaid principal			0
Average recorded investment		375
Interest income recognized		0
With an allowance recorded [Abstract]
Recorded investment	1,706		1,455
Unpaid principal	1,706		1,455
Related allowance	335		278
Average recorded investment	1,536	1,345
Interest income recognized	11	12
Total impaired [Abstract]
Recorded investment	1,706		1,455
Unpaid principal	1,706		1,455
Related allowance	335		278
Average recorded investment	1,536	1,720
Interest income recognized	11	12
Commercial Real Estate [Member] | Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment	805		809
Unpaid principal	805		809
Average recorded investment	807	1,021
Interest income recognized	8	10
With an allowance recorded [Abstract]
Recorded investment	425		440
Unpaid principal	425		440
Related allowance	108		135
Average recorded investment	430	402
Interest income recognized	0	4
Total impaired [Abstract]
Recorded investment	1,230		1,249
Unpaid principal	1,230		1,249
Related allowance	108		135
Average recorded investment	1,237	1,423
Interest income recognized	8	14
Commercial Real Estate [Member] | Construction [Member]
With an allowance recorded [Abstract]
Recorded investment	176		176
Unpaid principal	176		176
Related allowance	22		23
Average recorded investment	176	0
Interest income recognized	0	0
Total impaired [Abstract]
Recorded investment	176		176
Unpaid principal	176		176
Related allowance	22		23
Average recorded investment	176	0
Interest income recognized	0	0
Consumer Loan [Member] | Home Equity [Member]
With no related allowance recorded [Abstract]
Recorded investment	181		186
Unpaid principal	181		186
Average recorded investment	183	5
Interest income recognized	0	0
With an allowance recorded [Abstract]
Recorded investment	325
Unpaid principal	325
Related allowance	63		0
Average recorded investment	325
Interest income recognized	3
Total impaired [Abstract]
Recorded investment	506		186
Unpaid principal	506		186
Related allowance	63		0
Average recorded investment	508	5
Interest income recognized	3	0
Commercial Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment	370		186
Unpaid principal	370		186
Average recorded investment	245	0
Interest income recognized	0	0
With an allowance recorded [Abstract]
Recorded investment			0
Unpaid principal			0
Related allowance	0		0
Average recorded investment		83
Interest income recognized		2
Total impaired [Abstract]
Recorded investment	370		186
Unpaid principal	370		186
Related allowance	0		$ 0
Average recorded investment	245	83
Interest income recognized	$ 0	$ 2

Loans and Allowance for Loan 43

Loans and Allowance for Loan Losses, Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2017USD ($)Contract	Sep. 30, 2016Contract
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract		0
TDR loans which have subsequently defaulted during the period | Contract	0	0
Consumer Loan [Member] | Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Pre-modification outstanding recorded investment | $	$ 325
Post-modification outstanding recorded investment | $	325
Current outstanding recorded investment | $	$ 325

Loans and Allowance for Loan 44

Loans and Allowance for Loan Losses, Activity and Allocation of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	$ 11,022	$ 9,485
Charge-offs	289	72
Recoveries	18	20
Provision	347	543
Balance, end of period	11,098	9,976
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	528		$ 436
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	10,570		10,586
Loans receivable, ending balance, impairment analysis individually evaluated	3,988		3,252
Loans receivable, ending balance, impairment analysis collectively evaluated	644,705		631,079
Residential Real Estate [Member] | Residential Real Estate [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	2,289	2,396
Charge-offs	44	0
Recoveries	0	0
Provision	(169)	(154)
Balance, end of period	2,076	2,242
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	335		278
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	1,741		2,011
Loans receivable, ending balance, impairment analysis individually evaluated	1,706		1,455
Loans receivable, ending balance, impairment analysis collectively evaluated	245,851		243,876
Residential Real Estate [Member] | Construction and Land [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	89	75
Charge-offs	0	0
Recoveries	0	0
Provision	4	(12)
Balance, end of period	93	63
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	0		0
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	93		89
Loans receivable, ending balance, impairment analysis individually evaluated	0		0
Loans receivable, ending balance, impairment analysis collectively evaluated	7,986		7,160
Residential Real Estate [Member] | Multi-family [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	43	22
Charge-offs	0	0
Recoveries	0	0
Provision	33	(4)
Balance, end of period	76	18
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	0		0
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	76		43
Loans receivable, ending balance, impairment analysis individually evaluated	0		0
Loans receivable, ending balance, impairment analysis collectively evaluated	9,216		9,199
Commercial Real Estate [Member] | Real Estate [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	5,589	4,541
Charge-offs	0	0
Recoveries	0	0
Provision	170	440
Balance, end of period	5,759	4,981
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	108		135
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	5,651		5,454
Loans receivable, ending balance, impairment analysis individually evaluated	1,230		1,249
Loans receivable, ending balance, impairment analysis collectively evaluated	260,232		256,715
Commercial Real Estate [Member] | Construction [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	687	502
Charge-offs	0	0
Recoveries	0	0
Provision	63	126
Balance, end of period	750	628
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	22		23
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	728		664
Loans receivable, ending balance, impairment analysis individually evaluated	176		176
Loans receivable, ending balance, impairment analysis collectively evaluated	30,964		28,254
Consumer Loan [Member] | Home Equity [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	234	309
Charge-offs	0	0
Recoveries	0	0
Provision	81	(58)
Balance, end of period	315	251
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	63		0
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	252		234
Loans receivable, ending balance, impairment analysis individually evaluated	506		186
Loans receivable, ending balance, impairment analysis collectively evaluated	20,552		20,890
Consumer Loan [Member] | Consumer Installment [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	231	228
Charge-offs	88	72
Recoveries	18	17
Provision	42	(5)
Balance, end of period	203	168
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	0		0
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	203		231
Loans receivable, ending balance, impairment analysis individually evaluated	0		0
Loans receivable, ending balance, impairment analysis collectively evaluated	4,795		4,790
Commercial Loans [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	1,680	1,412
Charge-offs	157	0
Recoveries	0	3
Provision	225	77
Balance, end of period	1,748	1,492
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	0		0
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	1,748		1,680
Loans receivable, ending balance, impairment analysis individually evaluated	370		186
Loans receivable, ending balance, impairment analysis collectively evaluated	65,109		60,195
Unallocated [Member]
Activity of allowance for loan losses by loan category [Roll Forward]
Balance, beginning of period	180	0
Charge-offs	0	0
Recoveries	0	0
Provision	(102)	133
Balance, end of period	78	$ 133
Allocation of allowance for loan losses by loan category [Abstract]
Allowance for loan losses, ending balance, impairment analysis individually evaluated	0		0
Allowance for loan losses, ending balance, impairment analysis collectively evaluated	78		180
Loans receivable, ending balance, impairment analysis individually evaluated	0		0
Loans receivable, ending balance, impairment analysis collectively evaluated	$ 0		$ 0

Loans and Allowance for Loan 45

Loans and Allowance for Loan Losses, Foreclosed Real Estate (FRE) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Real Estate Properties [Line Items]
Foreclosed real estate	$ 752	$ 799
Commercial Real Estate [Member]
Real Estate Properties [Line Items]
Foreclosed real estate	$ 752	$ 799

Fair Value Measurements and F46

Fair Value Measurements and Fair Value of Financial Instruments, Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Assets [Abstract]
Securities available-for-sale	$ 100,809	$ 91,483
Recurring [Member]
Assets [Abstract]
Securities available-for-sale	100,809	91,483
Recurring [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	4,698	4,717
Recurring [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	68,173	58,112
Recurring [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	4,535	4,913
Recurring [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	20,874	20,765
Recurring [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale		1
Recurring [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	2,335	2,791
Recurring [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	194	184
Recurring [Member] | Level 1 [Member]
Assets [Abstract]
Securities available-for-sale	2,529	2,976
Recurring [Member] | Level 1 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale		1
Recurring [Member] | Level 1 [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	2,335	2,791
Recurring [Member] | Level 1 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	194	184
Recurring [Member] | Level 2 [Member]
Assets [Abstract]
Securities available-for-sale	98,280	88,507
Recurring [Member] | Level 2 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	4,698	4,717
Recurring [Member] | Level 2 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	68,173	58,112
Recurring [Member] | Level 2 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	4,535	4,913
Recurring [Member] | Level 2 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	20,874	20,765
Recurring [Member] | Level 2 [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale		0
Recurring [Member] | Level 2 [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 2 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Asset-backed Securities [Member]
Assets [Abstract]
Securities available-for-sale		0
Recurring [Member] | Level 3 [Member] | Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Equity Securities [Member]
Assets [Abstract]
Securities available-for-sale	$ 0	$ 0

Fair Value Measurements and F47

Fair Value Measurements and Fair Value of Financial Instruments, Fair Value, Assets and Liabilities Measured on Nonrecurring Basis (Details) - Nonrecurring [Member] $ in Thousands	3 Months Ended
	Sep. 30, 2017USD ($)Approach	Jun. 30, 2017USD ($)
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recorded investment	$ 2,286	$ 1,822
Related allowance	528	436
Fair value	$ 1,758	1,386
Impaired Loans [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of approaches used for appraisals | Approach	3
Foreclosed Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recorded investment	$ 752	799
Related allowance	0	0
Fair value	752	799
Level 1 [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Level 1 [Member] | Foreclosed Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Level 2 [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Level 2 [Member] | Foreclosed Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	0	0
Level 3 [Member] | Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,758	1,386
Level 3 [Member] | Foreclosed Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 752	$ 799

Fair Value Measurements and F48

Fair Value Measurements and Fair Value of Financial Instruments, Fair Value Inputs, Assets, Quantitative Information (Details) - Nonrecurring [Member] - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Sep. 30, 2017	Jun. 30, 2017
Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		$ 1,758	$ 1,386
Foreclosed Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value		752	799
Appraisal of Collateral [Member] | Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	[1]	$ 1,220	$ 845
Appraisal of Collateral [Member] | Impaired Loans [Member] | Minimum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	26.58%	25.00%
Liquidation expenses	[1],[3]	4.09%	3.45%
Appraisal of Collateral [Member] | Impaired Loans [Member] | Maximum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	31.86%	42.52%
Liquidation expenses	[1],[3]	7.26%	7.38%
Appraisal of Collateral [Member] | Impaired Loans [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	28.34%	28.46%
Liquidation expenses	[1],[3]	5.15%	5.93%
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	[1]	$ 752	$ 799
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member] | Minimum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	0.00%	0.00%
Liquidation expenses	[1],[3]	11.53%	11.64%
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member] | Maximum [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	0.00%	0.00%
Liquidation expenses	[1],[3]	18.80%	17.92%
Appraisal of Collateral [Member] | Foreclosed Real Estate [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Appraisal adjustments	[1],[2]	0.00%	0.00%
Liquidation expenses	[1],[3]	16.62%	16.29%
Discounted Cash Flow [Member] | Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	[1]	$ 538	$ 541
Discounted Cash Flow [Member] | Impaired Loans [Member] | Minimum [Member]
Fair value inputs [Abstract]
Discount rate		4.19%	4.19%
Discounted Cash Flow [Member] | Impaired Loans [Member] | Maximum [Member]
Fair value inputs [Abstract]
Discount rate		6.63%	6.63%
Discounted Cash Flow [Member] | Impaired Loans [Member] | Weighted Average [Member]
Fair value inputs [Abstract]
Discount rate		5.36%	5.36%
[1]	Fair value is generally determined through independent third-party appraisals of the underlying collateral, which generally includes various Level 3 inputs which are not observable.
[2]	Appraisals may be adjusted downwards by management for qualitative factors such as economic conditions. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received or age of the appraisal.
[3]	Appraisals are adjusted downwards by management for qualitative factors such as the estimated costs to liquidate the collateral.

Fair Value Measurements and F49

Fair Value Measurements and Fair Value of Financial Instruments, Carrying Amount and Estimated Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale	$ 100,809	$ 91,483
Securities held-to-maturity	231,860	228,452
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	46,419	16,277
Long term certificate of deposit	2,145	2,145
Securities available-for-sale	100,809	91,483
Securities held-to-maturity	225,694	223,830
Federal Home Loan Bank stock	1,575	2,131
Net loans	638,446	624,187
Accrued interest receivable	4,374	4,033
Deposits	917,569	859,535
Borrowings	20,850	29,550
Accrued interest payable	80	92
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	46,419	16,277
Long term certificate of deposit	2,145	2,145
Securities available-for-sale	100,809	91,483
Securities held-to-maturity	231,860	228,452
Federal Home Loan Bank stock	1,575	2,131
Net loans	643,851	629,690
Accrued interest receivable	4,374	4,033
Deposits	917,730	859,715
Borrowings	20,708	29,411
Accrued interest payable	80	92
Fair Value [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	46,419	16,277
Long term certificate of deposit	2,145	2,145
Securities available-for-sale	2,529	2,976
Securities held-to-maturity	0	0
Federal Home Loan Bank stock	0	0
Net loans	0	0
Accrued interest receivable	0	0
Deposits	0	0
Borrowings	0	0
Accrued interest payable	0	0
Fair Value [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Long term certificate of deposit	0	0
Securities available-for-sale	98,280	88,507
Securities held-to-maturity	231,860	228,452
Federal Home Loan Bank stock	1,575	2,131
Net loans	0	0
Accrued interest receivable	4,374	4,033
Deposits	917,730	859,715
Borrowings	20,708	29,411
Accrued interest payable	80	92
Fair Value [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Long term certificate of deposit	0	0
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Federal Home Loan Bank stock	0	0
Net loans	643,851	629,690
Accrued interest receivable	0	0
Deposits	0	0
Borrowings	0	0
Accrued interest payable	$ 0	$ 0

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Antidilutive securities or contracts outstanding (in shares)	0	0
Net Income	$ 3,472	$ 2,507
Weighted Average Shares - Basic (in shares)	8,502,734	8,483,179
Effect of Dilutive Stock Options (in shares)	28,508	14,490
Weighted Average Shares - Dilute (in shares)	8,531,242	8,497,669
Earnings per share - Basic (in dollars per share)	$ 0.41	$ 0.30
Earnings per share - Diluted (in dollars per share)	$ 0.41	$ 0.30

Dividends (Details)

Dividends (Details) - $ / shares	Jul. 18, 2017	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016
Dividends Payable [Line Items]
Cash dividends declared on common stock (in dollars per share)		$ 0.0975	$ 0.0950
2017 Annual Dividend [Member]
Dividends Payable [Line Items]
Cash dividends declared on common stock (in dollars per share)				$ 0.38
2017 Q4 Dividend [Member]
Dividends Payable [Line Items]
Dividends payable, date declared		Jul. 18, 2017
Cash dividends declared on common stock (in dollars per share)	$ 0.0975
Dividends payable, date of record		Aug. 15, 2017
Dividends payable, date paid		Aug. 31, 2017
2018 Annual Dividend [Member]
Dividends Payable [Line Items]
Cash dividends declared on common stock (in dollars per share)	$ 0.39

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 55	$ 54
Expected return on plan assets	(62)	(69)
Amortization of net loss	42	49
Net periodic pension cost	35	34
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	101	$ 77
Postemployment benefits liability	$ 3,200		$ 2,900

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2017USD ($)Plan$ / sharesshares	Sep. 30, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans | Plan	2
2008 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining compensation cost to be recognized | $	$ 0	$ 0
2008 Stock Option Plan [Member] | Stock Option [Member]
Stock option activity, shares [Roll Forward]
Outstanding at beginning of year (in shares)	37,770	64,770
Exercised (in shares)	(1,000)	(12,000)
Outstanding at period end (in shares)	36,770	52,770
Exercisable at period end (in shares)	36,770	52,770
Stock option activity, weighted average exercise price per share [Abstract]
Outstanding at beginning of year (in dollars per share) | $ / shares	$ 6.25	$ 6.25
Exercised (in dollars per share) | $ / shares	6.25	6.25
Outstanding at period end (in dollars per share) | $ / shares	6.25	6.25
Exercisable at period end (in dollars per share) | $ / shares	$ 6.25	$ 6.25
Options outstanding, intrinsic value | $	$ 875	$ 550
Options exercisable, intrinsic value | $	875	550
Options exercised during period, total intrinsic value | $	$ 23	$ 206
Options granted (in shares)	0	0

Stock-Based Compensation, Stock

Stock-Based Compensation, Stock Options Outstanding and Exercisable (Details) - $6.25 [Member]	3 Months Ended
	Sep. 30, 2017$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower range limit (in dollars per share)	$ 6.25
Range of exercise prices, upper range limit (in dollars per share)	$ 6.25
Number outstanding (in shares) | shares	36,770
Options outstanding, weighted average remaining contractual life	1 year
Options outstanding, weighted average exercise price (in dollars per share)	$ 6.25
Options exercisable, weighted average remaining contractual life	1 year
Options exercisable, weighted average exercise price (in dollars per share)	$ 6.25

Stock-Based Compensation, Phant

Stock-Based Compensation, Phantom Stock Option Plan and Long-term Incentive Plan (Details) - 2011 Phantom Stock Option and Long-term Incentive Plan [Member] - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Stock option related information [Abstract]
Total liability for long-term incentive plan	$ 2,400		$ 2,000
Phantom Stock Option [Member]
Stock option activity, shares [Roll Forward]
Outstanding at beginning of year (in shares)	1,522,720	1,352,554
Options granted (in shares)	594,200	578,200
Options paid in cash (in shares)	(3,000)	0
Outstanding at period end (in shares)	2,113,920	1,930,754
Stock option related information [Abstract]
Cash paid out on options vested	$ 7	$ 0
Compensation expense recognized	$ 360	$ 241

Accumulated Other Comprehensi56

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Accumulated Other Comprehensive Loss [Abstract]
Unrealized gain on available-for-sale securities, net of tax	$ 847	$ 612
Net losses and past service liability for defined benefit plan, net of tax	(1,604)	(1,604)
Accumulated other comprehensive loss	$ (757)	$ (992)

Subsequent events (Details)

Subsequent events (Details) - $ / shares	Oct. 17, 2017	Jul. 18, 2017	Sep. 30, 2017	Sep. 30, 2016
Subsequent Event [Line Items]
Common stock, dividends declared (in dollars per share)			$ 0.0975	$ 0.0950
2018 Annual Dividend [Member]
Subsequent Event [Line Items]
Common stock, dividends declared (in dollars per share)		$ 0.39
Subsequent Event [Member] | 2018 Annual Dividend [Member]
Subsequent Event [Line Items]
Common stock, dividends declared (in dollars per share)	$ 0.39
Subsequent Event [Member] | 2018 Q1 Dividend [Member]
Subsequent Event [Line Items]
Dividends payable, date declared	Oct. 17, 2017
Common stock, dividends declared (in dollars per share)	$ 0.0975
Dividends payable, date of record	Nov. 15, 2017
Dividends payable, date paid	Nov. 30, 2017