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Property and Equipment (Tables)
 3 Months Ended
Apr. 30, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block] The components of property and equipment are as follows for the periods presented (amounts in thousands):

    April 30,
2015		     January 31,
2015		  
                 
Land and improvements   $ 20,401     $ 20,844  
Buildings and improvements     26,037       27,069  
Machinery, equipment and fixtures     233,385       231,422  
Construction in progress     884       1,290  
      280,707       280,625  
Less: accumulated depreciation     (90,397 )     (86,178 )
                 
    $ 190,310     $ 194,447