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Segment Information (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Revenue, Major Customer [Line Items]
Percentage of Revenue			10.00%	10.00%
No Customer accounted for consolidated revenue			greater than 10%	greater than 10%
Segment Information (Textual) [Abstract]
Net earnings included in income tax charges	$ 3.1	$ 3.1
Income tax adjustment amount for prior fiscal years			2.1
Income tax adjustment amount related to current year		1.0
Income tax adjustment amount related to fourth quarter	$ 0.2
Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		11.00%
Customer Two [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		18.60%	34.90%	52.80%
Electrical Infrastructure [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		11.80%	20.30%
Electrical Infrastructure [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		11.20%	11.50%
Oil Gas & Chemical [Member] | Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		35.10%		30.20%
Oil Gas & Chemical [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue				11.10%
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			13.20%	10.90%
Storage Solutions [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue			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		25.70%	31.90%	29.90%
Industrial [Member] | Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		18.10%	21.80%	14.40%
Industrial [Member] | Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		15.30%	16.70%	12.30%
Industrial [Member] | Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of Revenue		12.20%

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Entity wide revenue major customer percentage range.

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Income tax adjustment current year.

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- Definition

The net amount of deferred income taxes and income tax credits less the tax benefit from exercise of stock options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=6576910&loc=d3e11374-113907

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- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

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