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Net Loss Per Share - Exercise Prices of Common Shares above Market Price of Common Stock (Detail) (Stock Options [Member])
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Jan. 31, 2014
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Jan. 31, 2013
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Jan. 31, 2012
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Stock Options [Member]
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| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Shares issuable upon the exercise of stock options that are anti-dilutive | 532 | 1,649 | 1,567 |
| X | ||||||||||
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- Definition
Shares issuable upon exercise of stock options excluded as effect was antidilutive. No definition available.
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| X | ||||||||||
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- Details
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