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v3.20.2

Segment Information (Details 2) | 12 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 9.70% | 9.70% | 11.40%
Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 8.20% | 7.60% | 8.60%
Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 8.20% | 7.60% | 6.40%
Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 6.80% | 7.20% | 6.00%
Customer Five [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 4.10% | 7.10% | 4.20%
Customer Six [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 3.80% | 5.00% | 3.20%
Customer Seven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 3.20% | 4.60% | 3.20%
Customer Eight [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 3.00% | 3.40% | 3.00%
Customer Nine [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 2.40% | 3.10% | 2.70%
Customer Ten |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 2.00% | 3.00% | 2.30%
Customer Eleven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 1.80% | 2.10% |
Customer Twelve |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 1.70% |  |
Customer Thirteen |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 1.50% |  |
Electrical Infrastructure [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Electrical Infrastructure [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 49.00% | 0.00%
Electrical Infrastructure [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 26.50%
Electrical Infrastructure [Member] | Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 25.40%
Electrical Infrastructure [Member] | Customer Five [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Electrical Infrastructure [Member] | Customer Six [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Electrical Infrastructure [Member] | Customer Seven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.30% | 0.00%
Electrical Infrastructure [Member] | Customer Eight [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 22.40% | 12.90%
Electrical Infrastructure [Member] | Customer Nine [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Electrical Infrastructure [Member] | Customer Ten |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 19.70% | 0.00% | 10.00%
Electrical Infrastructure [Member] | Customer Eleven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 16.10% | 13.40% |
Electrical Infrastructure [Member] | Customer Twelve |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 14.80% |  |
Electrical Infrastructure [Member] | Customer Thirteen |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 14.60% |  |
Oil Gas & Chemical [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Oil Gas & Chemical [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 29.00%
Oil Gas & Chemical [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Oil Gas & Chemical [Member] | Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 30.90% | 0.00%
Oil Gas & Chemical [Member] | Customer Five [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 17.80% | 0.00% | 12.00%
Oil Gas & Chemical [Member] | Customer Six [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 20.10% | 0.00% | 10.80%
Oil Gas & Chemical [Member] | Customer Seven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 10.70% | 3.10% | 0.00%
Oil Gas & Chemical [Member] | Customer Eight [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 16.70% | 0.00% | 0.00%
Oil Gas & Chemical [Member] | Customer Nine [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Oil Gas & Chemical [Member] | Customer Ten |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Oil Gas & Chemical [Member] | Customer Eleven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% |
Oil Gas & Chemical [Member] | Customer Twelve |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% |  |
Oil Gas & Chemical [Member] | Customer Thirteen |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% |  |
Storage Solutions [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Storage Solutions [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 16.20% | 0.00% | 0.00%
Storage Solutions [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 16.10% | 0.00% | 0.60%
Storage Solutions [Member] | Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 13.40% | 0.60% | 0.00%
Storage Solutions [Member] | Customer Five [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 1.70% | 19.40% | 2.20%
Storage Solutions [Member] | Customer Six [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.20% | 13.60% | 0.00%
Storage Solutions [Member] | Customer Seven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 2.50% | 10.60% | 10.90%
Storage Solutions [Member] | Customer Eight [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Storage Solutions [Member] | Customer Nine [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Storage Solutions [Member] | Customer Ten |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Storage Solutions [Member] | Customer Eleven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.10% | 0.00% |
Storage Solutions [Member] | Customer Twelve |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% |  |
Storage Solutions [Member] | Customer Thirteen |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% |  |
Industrial [Member] | Customer One [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 47.10% | 38.40% | 62.90%
Industrial [Member] | Customer Two [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.40% | 0.00%
Industrial [Member] | Customer Three [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 30.10% | 0.00%
Industrial [Member] | Customer Four [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Industrial [Member] | Customer Five [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Industrial [Member] | Customer Six [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Industrial [Member] | Customer Seven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Industrial [Member] | Customer Eight [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 0.00% | 0.00%
Industrial [Member] | Customer Nine [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 11.40% | 12.30% | 14.70%
Industrial [Member] | Customer Ten |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% | 12.00% | 0.00%
Industrial [Member] | Customer Eleven [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.70% | 0.00% |
Industrial [Member] | Customer Twelve |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.90% |  |
Industrial [Member] | Customer Thirteen |  |  |
Revenue, Major Customer [Line Items] |  |  |
Percentage of Revenue | 0.00% |  |

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