Stockholders' Equity - Fair Value of Options Granted (Detail) - Service-Based Vesting Condition Options [Member] |
3 Months Ended | 9 Months Ended | ||
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Aug. 31, 2016 |
Aug. 31, 2015 |
Aug. 31, 2016 |
Aug. 31, 2015 |
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| Weighted average values: | ||||
| Expected dividends | 0.00% | 0.00% | 0.00% | 0.00% |
| Expected volatility | 66.09% | 75.50% | 66.39% | 75.50% |
| Risk free interest rate | 1.09% | 1.57% | 1.22% | 1.57% |
| Expected life | 5 years | 5 years | 5 years 7 months 6 days | 5 years |
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- Definition Fair Value Of Options Weighted Average Values. No definition available.
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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 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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- Definition Expected term of share-based compensation awards, 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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- Details
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