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Note 10 - Net Income (Loss) Per Common Share (Tables)
 3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Month
s
Ended
March 31,
  
(In thousands, except per share and share data)
  
2
020
    
201
9
  
Numerator:
                
Net income (loss) attributable to common stockholders:
                
Basic
   $
18,364
     $
(19,161
)
Diluted
   $
(174
)
   $
(19,161
)
                 
Denominator:
                
Basic and diluted weighted average shares outstanding
    
21,010,817
      
18,648,397
  
                 
Basic earnings per share
   $
0.87
     $
(1.03
)
Diluted earnings per share
   $
(0.01
)
   $
(1.03
)