Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock-based Compensation (Tables)

v3.19.3
Note 10 - Stock-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2019
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Option numbers are in (000’s)                  
          Nine months ended
September 30, 2019		     Weighted
average		  
    Options     Weighted average
exercise price		     remaining
contractual
life (years)		  
                   
Outstanding, beginning of period    
4,489
     $
3.11
      
 
  
Granted    
2,018
      
1.97
      
 
  
Exercised    
(34
 )    
1.11
      
 
  
Forfeited    
(322
 )    
2.36
      
 
  
Expired    
(47
 )    
4.33
      
 
  
Outstanding, end of the period    
6,104
      
2.81
      
7.82
  
Exercisable, end of the period    
3,340
      
3.34
      
6.82
  
Vested and expected to vest, end of period    
5,689
      
2.86
      
7.66
  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
             
    Nine months ended
September 30, 2019		     Nine months ended
September 30, 2018		  
             
Risk-free interest rate    
2.21
 %    
2.43
 %
Expected dividend yield    
-
      
-
  
Expected volatility    
83.9
 %    
93.4
 %
Expected life of options (years)    
5
      
5
  
Grant date fair value   $
1.32
     $
2.23
  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
             
    Nine months ended,
September 30, 2019		     Nine months ended,
September 30, 2018		  
    Number
(in thousands)		     Weighted average grant date fair value    
Number
(in thousands)
     Weighted average
grant date fair value		  
Outstanding, beginning of period  
-
    
$-
    
-
    
$-
  
Granted    
80
      
2.0
      
150
      
3.35
  
Redeemed    
(40
 )    
2.0
      
-
      
-
  
Outstanding, end of period    
40
     $
2.0
      
150
     $
3.35
  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
             
    Three months ended
September 30,		     Nine months ended
September 30,		  
    2019     2018     2019     2018  
                         
Research and development   $
34
     $
307
     $
309
     $
826
  
General and administrative    
470
      
644
      
1,425
      
2,869
  
    $
504
     $
951
     $
1,734
     $
3,695