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Property and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Property, Plant and Equipment [Line Items]
Depreciation on property and equipment	$ 252,000	$ 292,000	$ 284,000

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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