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Amount of loans sold under FHLB program during the reporting period. Amount of loans sold under FHLB program during the reporting period.

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Percentage of borrowing capacity under a line of credit and secured by the borrower's residential property.

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Indicates requirement of varying payment of principal and interest to maturity of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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Percentage of plan assets to benefit obligation of defined benefit plan.

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Amount receivable from related parties classified as other, due after one year or the normal operating cycle, if longer.

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Shares contributed to the ESOP that have not yet been released, committed to be released, or allocated to participant accounts. Suspense shares generally collateralize ESOP debt.

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Interest and fee income from mortgage loans considered to be held-for-sale.

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Percentage of contributions required of employer under collective bargaining arrangement to total contributions required under all collective bargaining arrangements for pension and other postretirement plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

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Amount of contributions made to multiemployer plan by all employers who participate in plan.

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Valuation adjustments made to other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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Amount of cost (reversal of cost) for pension and other postretirement benefits.

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The cash inflow from the sale of servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting.

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Amount, before accumulated depreciation, of real estate investment by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. Excludes real estate not held as investment or interest.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Amount of write-down or reserve recognized in the income statement on real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Summary of Significant Accounting Policies (Textual)
Amortization related mortgage servicing rights totaling	$ 12,000	$ 13,000
Servicing mortgage loans	10,300,000	10,800,000
Loan sold under FHLB Program	929,000
Average loan serviced	10,400,000
Servicing fees	$ 17,000	$ 19,000
Fixed-rate mortgage loans with terms	30 years
Mortgage loans on real estate	95.00%
Loan-to-value, percentage	80.00%
Mortgage loans on real estate alternate percentage	90.00%
Funding target attainment percentage		89.50%
Deferred compensation	$ 1,000	$ 1,000
Liabilities totaled	47,000	45,000
Repayment of a loan	991,000	1,200,000
Expense for ESOP	$ 188,000	$ 213,000
Total shares surrendered plan totaled	66,286	84,961
Amounts contributed ESOP	$ 280,000	$ 280,000
Valuation adjustments	37,000	171,000
Fair value less costs to sell, carrying amount	5,000	182,000
Write-down	38,000	51,000
Deposits from related parties	1,900,000	2,900,000
Increase retained earnings	441,000
Inputs for determining fair value	$ 84,000	$ 0
Multi Family and Nonresidential Loans [Member]
Summary of Significant Accounting Policies (Textual)
Fixed-rate mortgage loans with terms	25 years
Mortgage loans on real estate alternate percentage	80.00%
Loans to Qualified Borrowers [Member]
Summary of Significant Accounting Policies (Textual)
Loan-to-value, percentage	90.00%
Loans Secured by Savings [Member]
Summary of Significant Accounting Policies (Textual)
Loan-to-value, percentage	90.00%
Construction Loans [Member]
Summary of Significant Accounting Policies (Textual)
Mortgage loans on real estate alternate percentage	80.00%
Employee Stock Ownership Plan [Member]
Summary of Significant Accounting Policies (Textual)
Total shares surrendered plan totaled	156,700	155,794
Pentegra DB Plan [Member]
Summary of Significant Accounting Policies (Textual)
Plan contributions			$ 153,200,000	$ 163,100,000
Plan contributions, percentage	5.00%	5.00%
Expense related plans totaling	$ 957,000	$ 695,000
Mortgage Servicing Rights [Member]
Summary of Significant Accounting Policies (Textual)
Fair value, total	$ 82,000	$ 87,000
First Mortgage [Member]
Summary of Significant Accounting Policies (Textual)
Mortgage loans on real estate alternate percentage	80.00%