XML 34 R52.htm IDEA: XBRL DOCUMENT v2.4.0.6
Goodwill and Other Intangible Assets (Details 1) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2013
Jan. 31, 2012
Amortization expense related to amortizable intangible assets    
2014 $ 671  
2015 671  
2016 671  
2017 671  
2018 671  
Thereafter 634  
Net Carrying Amount $ 3,989 $ 4,696