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Note 9 - Loss Per Share (Tables)
 3 Months Ended
Mar. 31, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Three Months Ended March 31,
 
 
 
2017
 
 
2016
 
                 
Net loss
   $
(3,868
 )   $
(9,583
 )
                 
Basic weighted-average common shares outstanding
    
9,604
     
9,572
 
Effect of potentially dilutive common shares
(1)
    
-
     
-
 
Diluted weighted-average common shares outstanding
    
9,604
     
9,572
 
                 
Loss per basic and diluted common share
   $
(0.40
 )   $
(1.00
 )