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Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Summary of Significant Accounting Policies (Textual)
Amortization related mortgage servicing rights totaling	$ 13	$ 12
Servicing mortgage loans	9,400	10,300
Loan sold under FHLB Program	821
Average loan serviced	9,900
Servicing fees	$ 15	$ 17
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		87.39%
Deferred compensation	$ 2	$ 1
Liabilities totaled	49	47
Repayment of a loan	765	991
Expense for ESOP	$ 158	$ 188
Total shares surrendered plan totaled	156,787	156,700
Amounts contributed ESOP	$ 280	$ 280
Valuation adjustments	66	37
Fair value less costs to sell, carrying amount	117	5
Write-down	66	38
Deposits from related parties	2,200	1,900
Increase retained earnings	441
Inputs for determining fair value	13	84
income tax benefit	$ 141	(37)
Pentegra Db Plan [Member]
Summary of Significant Accounting Policies (Textual)
Plan contributions		$ 164,600	$ 367,100
Plan contributions, percentage	5.00%	5.00%
Expense related plans totaling	$ 1,200	$ 957
Construction Loans [Member]
Summary of Significant Accounting Policies (Textual)
Mortgage loans on real estate alternate percentage	80.00%
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%
Mortgage Servicing Rights [Member]
Summary of Significant Accounting Policies (Textual)
Fair value, total	$ 76,000	$ 82
First Mortgage [Member]
Summary of Significant Accounting Policies (Textual)
Mortgage loans on real estate alternate percentage	80.00%

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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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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, 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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