Segment Information (Details Textual)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Revenue, Major Customer [Line Items]
Percentage of Revenue			10.00%
Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	10.70%	11.00%
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	24.90%	18.60%	34.90%
Electrical Infrastructure [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	19.60%	11.80%	20.30%
Electrical Infrastructure [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	12.60%	11.20%	11.50%
Electrical Infrastructure [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	11.10%
Oil Gas & Chemical [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	20.70%	35.10%
Oil Gas & Chemical [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	16.10%	16.20%
Oil Gas & Chemical [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	10.00%
Oil Gas & Chemical [Member] | Another Customer [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			38.40%
Storage Solutions [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	24.30%		13.20%
Storage Solutions [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	10.60%		13.10%
Storage Solutions [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			12.30%
Storage Solutions [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			11.40%
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%	25.70%	31.90%
Industrial [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	20.50%	18.10%	21.80%
Industrial [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue	16.40%	15.30%	16.70%
Industrial [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		12.20%