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Warrants for Purchase of Series B Redeemable Convertible Preferred Stock - Additional Information (Detail) (USD $)
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1 Months Ended | 12 Months Ended | |||
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Jun. 30, 2007
Transaction
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Jun. 30, 2006
Transaction
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Jun. 30, 2009
Warrant
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Jun. 30, 2007
Warrant
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Jun. 30, 2006
Warrant
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| Class of Warrant or Right [Line Items] | |||||
| Issuance of warrants | 31,909 | 19,943 | |||
| Exercise price of warrants issued | 1.25 | 1.25 | |||
| Term of warrants issued | 7 years | 7 years | |||
| Expected term (in years) | 4 years 7 months 10 days | ||||
| Expected volatility | 70.00% | ||||
| Dividend yield | 0.00% | ||||
| Risk-free interest rate | 2.37% | ||||
| Weighted-average fair value of the warrants | $ 3.01 | $ 3.01 | |||
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- Definition
Class of Warrant or Rights Period from Which Warrants or Rights Exercisable No definition available.
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- Definition
Weighted Average Fair Value Of Warrants No definition available.
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- Definition
The exercise price of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The specified number of securities that each class of warrants or rights outstanding give the holder the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Risk-free interest rate assumption used in valuing an instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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