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Goodwill and Intangible Assets (Details 1) - USD ($)		6 Months Ended
	Dec. 21, 2016	Dec. 31, 2016
Acquired intangible assets		$ 10,759,000
ISP Optics Corp [Member]
Acquired intangible assets	$ 10,800,000
ISP Optics Corp [Member] | Customer Relationships [Member]
Acquired intangible assets	$ 5,633,000
Acquired intangible assets - useful life	15 years
ISP Optics Corp [Member] | Backlog [Member]
Acquired intangible assets	$ 261,000
Acquired intangible assets - useful life	2 years
ISP Optics Corp [Member] | Trade Secrets [Member]
Acquired intangible assets	$ 2,546,000
Acquired intangible assets - useful life	8 years
ISP Optics Corp [Member] | Trademark [Member]
Acquired intangible assets	$ 2,290,000
Acquired intangible assets - useful life	8 years
ISP Optics Corp [Member] | Noncompete Agreement [Member]
Acquired intangible assets	$ 29,000
Acquired intangible assets - useful life	3 years

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

No definition available.

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