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Goodwill and Intangible Assets (Details 3) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2013
Jan. 31, 2012
2014 $ 4,948  
2015 4,191  
2016 3,339  
2017 2,359  
2018 1,551  
Fiscal 2019 and thereafter 926  
Total Future Amortization $ 17,314 $ 22,232