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Note 11 - Restricted Cash (Tables)
9 Months Ended
Oct. 31, 2020
Notes Tables  
Restrictions on Cash and Cash Equivalents [Table Text Block]
                 
   
October 31, 2020
   
October 31, 2019
 
Cash and cash equivalents
  $
6,593
    $
12,221
 
Restricted cash
   
1,154
     
1,138
 
Cash, cash equivalents and restricted cash shown in the statement of cash flows
  $
7,747
    $
13,359