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Note 10 - Net Loss Per Share of Common Stock (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Year ended December 31,
      
 
      
 
(dollars in thousands, except earnings per share)
  
2019
    
2018
  
Numerator for loss per share:
      
 
      
 
Net loss that is available to common shareholders
   $
(69,019
 )   $
(7,956
 )
                 
Denominator for basic loss per share:
      
 
      
 
Weighted average shares outstanding
    
22,419,138
      
22,180,102
  
                 
Denominator for diluted loss per share:
      
 
      
 
Effect of stock options and restricted stock units
    
—
      
—
  
Adjusted weighted average shares and assumed conversions
    
22,419,138
      
22,180,102
  
                 
Basic loss per share
   $
(3.08
 )   $
(0.36
 )
                 
Diluted loss per share
   $
(3.08
 )   $
(0.36
 )
                 
Anti-dilutive shares excluded from computation of diluted loss per share
    
1,825,727
      
1,285,307