Employee Benefit Plan - ESOP (Details) - USD ($)			12 Months Ended
Jul. 08, 2015	Nov. 08, 2005	Jun. 30, 2017	Jun. 30, 2016
Employee stock ownership plan ("ESOP")
Funds borrowed by the ESOP from the Company	$ 951,912	$ 1,292,620
Company stock acquired by the ESOP (in shares)	$ 118,989	$ 129,262
Price of Company stock acquired by the ESOP (in dollars per share)	$ 8.00	$ 10.00
Annual principal and interest payments to be made by the ESOP	$ 65,000	$ 145,000
Compensation expense			$ 152,104	$ 105,645
Shares held by the ESOP
Allocated shares (in shares)			86,104	71,803
Shares allocated to be released			7,929	7,932
Unearned ESOP shares (in shares)			134,843	150,700
Total ESOP shares (in shares)			228,876	230,435
Fair value of unearned ESOP shares			$ 1,348,430	$ 1,252,317
Fair value of allocated shares subject to repurchase obligation			$ 815,280	$ 564,723

The amount of loans made by the employer to the ESOP.

No definition available.

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- Definition

Annual principal and interest payments to be made by the ESOP to repay the loan from the employer.

+ References

No definition available.

+ Details

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- Definition

Fair value of shares contributed to the ESOP that have not yet been released, committed to be released, or allocated to participant accounts.

+ References

No definition available.

+ Details

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- Definition

The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula and shares that, although not legally released, will be released by a future scheduled and committed debt service payment and will be allocated to employees for service rendered in the current accounting period.

+ References

No definition available.

+ Details

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- Definition

The amount of plan compensation cost recognized during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Fair value of the shares allocated that are subject to a repurchase obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

+ Details

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- Definition

The shares that, although not legally released, will be released by a future scheduled and committed debt service payment and will be allocated to employees for service rendered in the current accounting period. The ESOP documents typically define the period of service to which the shares relate. ESOP shares are released to compensate employees directly, to settle employer liabilities for other employee benefits, and to replace dividends on allocated shares that are used for debt service.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

+ Details

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Period Type:	instant

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Weighted average purchase price of capital shares purchased through an employee stock ownership plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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- Definition

The issuance of shares or sale of treasury shares to an Employee Stock Ownership Plan (ESOP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6418591&loc=d3e17344-113926

+ Details

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Balance Type:	credit
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