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Segment Information (Details Textual) | 12 Months Ended
--- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012
Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 17.30% | 10.70% | 11.00%
Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 12.70% |  |
Another Customer [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue |  |  | 10.70%
Electrical Infrastructure [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 20.80% | 24.90% | 18.60%
Electrical Infrastructure [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 17.50% | 19.60% | 11.80%
Electrical Infrastructure [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 17.00% | 12.60% | 11.20%
Electrical Infrastructure [Member] | Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 10.80% | 11.10% |
Oil Gas & Chemical [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 18.30% | 20.70% | 35.10%
Oil Gas & Chemical [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 14.00% | 16.10% | 16.20%
Oil Gas & Chemical [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 10.20% | 10.00% |
Storage Solutions [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 35.80% | 24.30% |
Storage Solutions [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 26.30% | 10.60% |
Storage Solutions [Member] | Another Customer [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue |  |  | 20.90%
Industrial [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 23.30% | 23.30% | 25.70%
Industrial [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 15.10% | 20.50% | 18.10%
Industrial [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 13.00% | 16.40% | 15.30%
Industrial [Member] | Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 12.70% |  | 12.20%
Industrial [Member] | Customer Five [Member] [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 11.30% |  |

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