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Note 5 - Trade Receivables (Tables)
12 Months Ended
Jan. 31, 2017
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
     
January 31,
2017
     
January 31,
2016
 
Trade receivables    
26,495
     
27,080
 
Less: Allowance for doubtful accounts    
(1,094
)    
(1,466
)
     
25,401
     
25,614