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Concentrations - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Concentration Risk [Line Items]
Percentage of revenue from major customer	10.00%	10.00%	10.00%	10.00%

X

- Details

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X

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration