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Segment Information (Details Textual)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	14.80%	12.30%	17.30%
Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	10.60%		12.70%
Electrical Infrastructure [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	38.90%	25.10%	20.80%
Electrical Infrastructure [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		16.30%	17.50%
Electrical Infrastructure [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	16.60%	14.70%	17.00%
Electrical Infrastructure [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	14.40%	12.70%	10.80%
Electrical Infrastructure [Member] | Customer Five [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	12.70%	12.70%
Oil Gas & Chemical [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		17.70%	18.30%
Oil Gas & Chemical [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		12.30%	14.00%
Oil Gas & Chemical [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			10.20%
Oil Gas & Chemical [Member] | Customer Six [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	20.20%
Oil Gas & Chemical [Member] | Customer Seven [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	11.20%
Storage Solutions [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	10.20%	33.00%	35.80%
Storage Solutions [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	24.70%	10.90%	26.30%
Storage Solutions [Member] | Another Customer [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	19.30%
Industrial [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		34.00%	23.30%
Industrial [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		27.60%	15.10%
Industrial [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		19.00%	13.00%
Industrial [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			12.70%
Industrial [Member] | Customer Five [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			11.30%
Industrial [Member] | Customer Eight [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	36.90%
Industrial [Member] | Customer Nine [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	20.10%
Industrial [Member] | Customer Ten [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	14.00%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611

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- Definition

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+ References

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