XML 27 R17.htm IDEA: XBRL DOCUMENT v3.19.2
Note 11 - Stock-Based Compensation
 6 Months Ended
Jun. 30, 2019
Notes to Financial Statements  
Share-based Payment Arrangement [Text Block]
11.
Stock-Based Compensation
 
The Company records stock-based compensation expense during the requisite service period for share-based payment awards granted to employees and non-employees.
 
The following table sets forth the Company’s stock-based compensation expense (reversal) for the periods indicated (in thousands).
 
   
Three Months Ended
June 30
,
    
Six
Months Ended
June 30
,
  
   
2019
    
2018
    
2019
    
2018
  
Stock options and employee stock purchase plan awards
                                
Research and development
   $
—
     $
9
     $
—
     $
18
  
Selling, general and administrative
    
 —
      
11
      
—
      
41
  
                                 
Restricted stock
                                
Research and development
    
33
      
17
      
61
      
34
  
Selling, general and administrative
    
139
      
17
      
345
      
58
  
                                 
Stock appreciation rights
                                
Research and development
    
(34
 )    
—
      
(18
 )    
—
  
Selling, general and administrative
    
(31
 )    
86
      
(18
 )    
86
  
Total stock-based compensation
   $
107
     $
140
     $
370
     $
237