Loans Receivable (Details 2) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Loans individually evaluated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Total	$ 5,241	$ 3,409
Loans acquired with deteriorated credit quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Total	971	1,138
Unpaid principal balance and recorded investment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Total	6,212	4,547
Loans collectively evaluated for impairment, Total	264,240	267,339
Evaluated for impairment, Total	270,452	271,886
Ending allowance attributed to loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Total
Loans collectively evaluated for impairment, Total	1,371	1,376
Evaluated for impairment, Total	1,371	1,376
Unallocated allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Total
Loans collectively evaluated for impairment, Total	200	200
Evaluated for impairment, Total	200	200
Total allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Total
Loans collectively evaluated for impairment, Total	1,571	1,576
Evaluated for impairment, Total	1,571	1,576
One- to four-family residential real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Loans Individually evaluated	4,232	2,977
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality	971	1,138
Loans individually evaluated for impairment, Ending loans balance	5,203	4,115
Loans individually evaluated for impairment, Total allowance
Loans collectively evaluated for impairment, Ending loans balance	200,364	202,793
Loans collectively evaluated for impairment, Ending allowance attributed to loans	781	795
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	781	795
Multi-family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	15,143	15,113
Loans collectively evaluated for impairment, Ending allowance attributed to loans	232	225
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	232	225
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	2,514	2,919
Loans collectively evaluated for impairment, Ending allowance attributed to loans	4	8
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	4	8
Land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	692	677
Loans collectively evaluated for impairment, Ending allowance attributed to loans	1	1
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	1	1
Farm [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Loans Individually evaluated	310	310
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality
Loans individually evaluated for impairment, Ending loans balance	310	310
Loans collectively evaluated for impairment, Ending loans balance	1,922	1,985
Loans collectively evaluated for impairment, Ending allowance attributed to loans	6	6
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	6	6
Nonresidential real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment, Loans Individually evaluated	699	122
Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality
Loans individually evaluated for impairment, Ending loans balance	699	122
Loans individually evaluated for impairment, Total allowance
Loans collectively evaluated for impairment, Ending loans balance	31,403	32,291
Loans collectively evaluated for impairment, Ending allowance attributed to loans	323	321
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	323	321
Commercial non-mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	1,993	1,917
Loans collectively evaluated for impairment, Ending allowance attributed to loans	4	3
Loans collectively evaluated for impairment, Total allowance	4	3
Loans on deposits [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	1,542	1,470
Loans collectively evaluated for impairment, Ending allowance attributed to loans	3	3
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	3	3
Home equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	8,118	7,603
Loans collectively evaluated for impairment, Ending allowance attributed to loans	16	13
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	16	13
Unsecured [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	515	508
Loans collectively evaluated for impairment, Ending allowance attributed to loans	1	1
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance	1	1
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance
Loans collectively evaluated for impairment, Ending allowance attributed to loans
Loans collectively evaluated for impairment, Unallocated allowance	200	200
Loans collectively evaluated for impairment, Total allowance	200	200
Automobile [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans collectively evaluated for impairment, Ending loans balance	34	63
Loans collectively evaluated for impairment, Ending allowance attributed to loans
Loans collectively evaluated for impairment, Unallocated allowance
Loans collectively evaluated for impairment, Total allowance

The balance of financing receivables that were acquired with deteriorated credit quality.

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Loans collectively evaluated for impairment Ending allowance attributed to loans.

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Loans collectively evaluated for impairment.

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Loans collectively evaluated for impairment Unallocated allowance.

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Loans individually evaluated for impairment total.

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A valuation allowance for financing receivables that are expected to be uncollectible.

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-Topic 310
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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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