Loans Receivable (Details 1) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	$ 1,554	$ 1,476	$ 1,553	$ 1,515
Provision for loan losses	3	52	3	56
Loans charged off	(31)	(57)	(49)	(100)
Recoveries	5	2	44	2
Ending balance	1,531	1,473	1,531	1,473
One- to four-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	774	803	773	862
Provision for loan losses	(9)	50	(29)	34
Loans charged off	(31)	(52)	(49)	(95)
Recoveries	5		44
Ending balance	739	801	739	801
Multi-family [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	243	208	243	192
Provision for loan losses	1	3	1	19
Loans charged off
Recoveries
Ending balance	244	211	244	211
Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	7	5	6	5
Provision for loan losses	7	(1)	8	(1)
Loans charged off
Recoveries
Ending balance	14	4	14	4
Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	2	2	4	2
Provision for loan losses		1	(2)	1
Loans charged off
Recoveries
Ending balance	2	3	2	3
Nonresidential real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	284	222	270	217
Provision for loan losses	9	8	23	13
Loans charged off
Recoveries
Ending balance	293	230	293	230
Farm [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	10	4	9	3
Provision for loan losses			1	1
Loans charged off
Recoveries
Ending balance	10	4	10	4
Loans on deposits [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	5	4	4	4
Provision for loan losses	(1)	(1)		(1)
Loans charged off
Recoveries
Ending balance	4	3	4	3
Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	20	12	17	11
Provision for loan losses	(2)		1	1
Loans charged off
Recoveries
Ending balance	18	12	18	12
Unsecured [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	2	1	1	1
Provision for loan losses	(1)	3		3
Loans charged off		(5)		(5)
Recoveries		2		2
Ending balance	1	1	1	1
Unallocated [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	200	200	200	200
Provision for loan losses
Loans charged off
Recoveries
Ending balance	200	200	200	200
Commercial nonmortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance	7	15	6	18
Provision for loan losses	(1)	(11)		(14)
Loans charged off
Recoveries
Ending balance	6	4	6	4
Automobile [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance
Provision for loan losses
Loans charged off
Recoveries
Ending balance

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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Amount of expense related to estimated loss from loan and lease transactions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
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