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Note 11 - Restricted Cash (Tables)
6 Months Ended
Jul. 31, 2020
Notes Tables  
Restrictions on Cash and Cash Equivalents [Table Text Block]
                 
   
July 31, 2020
   
July 31, 2019
 
Cash and cash equivalents
  $
9,106
    $
8,052
 
Restricted cash
   
1,150
     
1,167
 
Cash, cash equivalents and restricted cash shown in the statement of cash flows
  $
10,256
    $
9,219