Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Income (Loss) (Detail)

v2.4.0.8
Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jul. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning Balance $ (1,826)
Other comprehensive loss (697)
Ending Balance (2,523)
Foreign Currency Translation Adjustment [Member]
 
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning Balance (1,857)
Other comprehensive loss (688)
Ending Balance (2,545)
Changes in Fair Value of Available for Sale Investments [Member]
 
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Beginning Balance 31
Other comprehensive loss (9)
Ending Balance $ 22