|
Consolidated Balance Sheet Detail - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Jan. 31, 2014
|
Jan. 31, 2013
|
Jan. 31, 2012
|
|
| Balance Sheet Related Disclosures [Abstract] | |||
| Depreciation of fixed assets | $ 4,389 | $ 4,671 | $ 5,435 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|