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Operations (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012
Operations [Line Items]
Cash equivalents and marketable securities	$ 14.6
Net proceeds from a registered direct offering of common shares	$ 4.7

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- Definition

Cash And Cash Equivalents And Marketable Securities Fair Value

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- Definition

Net Proceeds From Issuance Of Common Stock

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