|
Stock-Based Compensation and Stock Incentive Plans (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jul. 31, 2012
|
Jul. 31, 2011
|
Jul. 31, 2012
|
Jul. 31, 2011
|
|
| Stock-based compensation expense | $ 77 | $ 89 | $ 2,328 | $ 2,116 |
|
Cost Of Sales [Member]
|
||||
| Stock-based compensation expense | 77 | 89 | 194 | 240 |
|
Research and Development Expense [Member]
|
||||
| Stock-based compensation expense | 65 | 85 | 181 | 207 |
|
Selling and Marketing Expense [Member]
|
||||
| Stock-based compensation expense | 99 | 287 | 231 | 713 |
|
General and Administrative Expense [Member]
|
||||
| Stock-based compensation expense | $ 1,059 | $ 345 | $ 1,722 | $ 956 |