Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Loss (Details)

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Accumulated Other Comprehensive Loss (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Beginning balance, Foreign Currency Translation Adjustment $ (1,857)  
Other comprehensive (loss) income, Foreign Currency Translation Adjustment (1,040)  
Ending balance, Foreign Currency Translation Adjustment (2,897)  
Beginning balance, Changes in Fair Value of Availablefor Sale Investments 31  
Change in fair value on marketable securities, net of tax 3  
Ending balance, Changes in Fair Value of Availablefor Sale Investments 34  
Beginning Balance (1,826)  
Other comprehensive (loss) income (3,022) (17,955)
Ending Balance $ (2,863)