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Stock-Based Compensation and Stock Incentive Plans (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Apr. 30, 2013
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Apr. 30, 2012
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| Stock-based compensation expense | $ 1,113 | $ 1,028 |
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Cost Of Cost Of Revenues [Member]
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| Stock-based compensation expense | 54 | 117 |
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Research and Development [Member]
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| Stock-based compensation expense | 85 | 116 |
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Selling and Marketing [Member]
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| Stock-based compensation expense | 46 | 132 |
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General and Administrative [Member]
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| Stock-based compensation expense | $ 928 | $ 663 |
| X | ||||||||||
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- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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