Stock Based Compensation (Details Textual)	12 Months Ended
Jun. 30, 2018 shares
Employee Plan [Member]
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award	300,000
Director Plan [Member]
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award	75,000

The number of shares purchased on the open market during the period for issuance to employees under the plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901

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