Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) (Details)

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Accumulated Other Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Jan. 31, 2012
Accumulated Other Comprehensive Income (Loss)    
Foreign currency translation adjustment $ (1)  
Net unrealized losses on cash equivalents and marketable securities (4) (5)
Accumulated other comprehensive income (loss) $ (5) $ (5)