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Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Payments To Non Compete Agreement	$ 878
Imputed Interest In NonCompete Agreement	27
Payable To Non Compete Agreement	17
Amortization of Intangible Assets	$ 225	$ 210
Minimum [Member] \| Patents [Member]
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum [Member] \| Patents [Member]
Finite-Lived Intangible Asset, Useful Life	17 years

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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