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Long- Term Debt and Notes Payable (Tables)
 6 Months Ended
Jul. 31, 2012
Long-Term Debt and Notes Payable [Abstract]  
Long-term debt and notes payable
                 
    July 31,
2012		     January 31,
2012		  

Revolving line of credit

   $ 12,400     $ 12,550  

Equipment note

     —         638  

MCL notes

     31       785  

SAP equipment notes

     274       210  
   

 

 

    

 

 

  
      12,705       14,183  

Less current portion

     (175 )      (1,399 ) 
   

 

 

    

 

 

  

Long-term debt

   $ 12,530     $ 12,784