|
Stock-Based Compensation and Stock Incentive Plans (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Apr. 30, 2013
|
Apr. 30, 2012
|
|
| Stock-based compensation expense | $ 1,113 | $ 1,028 |
|
Cost Of Cost Of Revenues [Member]
|
||
| Stock-based compensation expense | 54 | 117 |
|
Research and Development [Member]
|
||
| Stock-based compensation expense | 85 | 116 |
|
Selling and Marketing [Member]
|
||
| Stock-based compensation expense | 46 | 132 |
|
General and Administrative [Member]
|
||
| Stock-based compensation expense | $ 928 | $ 663 |