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Note 16 - Basic and Diluted Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Year ended December 31,
  
   
201
9
    
2018
    
2017
  
Numerator:
  
 
 
 
  
 
 
 
  
 
 
 
                         
Net loss
   $
(1,190
 )   $
(1,957
 )   $
(3,003
 )
                         
Denominator:
  
 
 
 
  
 
 
 
  
 
 
 
                         
Weighted average number of shares of common stock outstanding during the year used to compute basic net loss per share (in thousands)
    
22,827
      
22,512
      
22,229
  
Incremental shares attributable to exercise of outstanding options, SARs and RSUs (assuming proceeds would be used to purchase treasury stock) (in thousands)
    
-
      
-
      
-
  
                         
Weighted average number of shares of common stock used to compute diluted net loss per share (in thousands)
    
22,827
      
22,512
      
22,229
  
                         
Basic and diluted net loss per share
   $
(0.05
 )   $
(0.09
 )   $
(0.14
 )