Segment Information (Details Textual)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	12.30%	17.30%	10.70%
Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		12.70%
Electrical Infrastructure [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	25.10%	20.80%	24.90%
Electrical Infrastructure [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	16.30%	17.50%	19.60%
Electrical Infrastructure [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	14.70%	17.00%	12.60%
Electrical Infrastructure [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	12.70%	10.80%	11.10%
Electrical Infrastructure [Member] | Customer Five [Member] [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	12.70%
Oil Gas & Chemical [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	17.70%	18.30%	20.70%
Oil Gas & Chemical [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	12.30%	14.00%	16.10%
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	33.00%	35.80%	24.30%
Storage Solutions [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	10.90%	26.30%	10.60%
Industrial [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	34.00%	23.30%	23.30%
Industrial [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	27.60%	15.10%	20.50%
Industrial [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	19.00%	13.00%	16.40%
Industrial [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		12.70%
Industrial [Member] | Customer Five [Member] [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		11.30%