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Note 11 - Restricted Cash (Tables)
3 Months Ended
Apr. 30, 2019
Notes Tables  
Restrictions on Cash and Cash Equivalents [Table Text Block]
   
Three Months Ended April 30,
 
   
2019
   
2018
 
Cash and cash equivalents
  $
7,960
    $
9,879
 
Restricted cash
   
2,602
     
1,101
 
Cash, cash equivalents and restricted cash shown in the statement of cashflows
  $
10,562
    $
10,980