Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Comprehensive Loss

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Condensed Consolidated Statements of Comprehensive Loss (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2012
Jul. 31, 2011
Net loss $ (5,415) $ (1,812) $ (25,643) $ (8,566)
Other comprehensive loss:        
Change in net unrealized losses on marketable securities     3  
Other comprehensive loss: (5,415) (1,812) (25,640) (8,566)
Total comprehensive loss $ (5,415) $ (1,812) $ (25,640) $ (8,566)