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Note 7 - Other Income, Net
12 Months Ended
Dec. 31, 2020
Notes to Financial Statements  
Other Income and Other Expense Disclosure [Text Block]
7.
Other income, net
 
     
Year ended December 31,
 
      2020       2019  
                 
Loss (gain) on investments   $
271
    $
(109
)
Fair value adjustment on DPP (note 16)    
142
     
465
 
Other    
(400
)    
(144
)
    $
13
    $
212