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Note 12 - Debt (Tables)
12 Months Ended
Jan. 31, 2020
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
     
January 31,
     
January 31,
 
      2020       2019  
Credit facility    
     
25,464
 
                 
Available for use    
350,000
     
324,536