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Summary of Significant Accounting Policies - Research and Development (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Accounting Policies [Abstract]
Reduction of research and development expenses	$ 2,866	$ 3,354	$ 2,519

- Definition

The amount of compensation earned (contract income) under a research and development arrangement accounted for as a contract to perform research and development for others.

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