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Borrowings - Additional Information (Detail) (USD $)	9 Months Ended
Borrowings - Additional Information (Detail) (USD $)	Mar. 31, 2013
Borrowings [Line Items]
Long-term liabilities	$ 0
Credit facility with a one-year maturity for working capital	$ 1,000,000
Credit facility maturity period	1 year

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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