Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock-based Compensation (Tables)

v3.19.2
Note 10 - Stock-based Compensation (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Option numbers are in (000’s)                  
    Options     Six months ended
June 30, 2019
Weighted average
exercise price
    Weighted
average
remaining
contractual
life (years)
 
                   
Outstanding, beginning of period    
4,489
    $
3.11
     
 
 
Granted    
1,789
     
1.93
     
 
 
Exercised    
(23
)    
1.11
     
 
 
Forfeited    
(130
)    
2.59
     
 
 
Expired    
(47
)    
4.23
     
 
 
Outstanding, end of the period    
6,078
     
2.83
     
8.0
 
Exercisable, end of the period    
3,257
     
3.36
     
7.0
 
Vested and expected to vest, end of period    
5,654
     
2.87
     
7.9
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
             
    Six months ended
June 30, 2019
    Six months ended
June 30, 2018
 
             
Risk-free interest rate    
2.30
%    
2.39
%
Expected dividend yield    
-  
     
-  
 
Expected volatility    
83.9
%    
93.9
%
Expected life of options (in years)    
5
     
5
 
Grant date fair value   $
1.30
    $
2.14
 
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
    Six months ended,
June 30, 2019
    Six months ended,
June 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    
80,000
     
2.0
     
-  
     
-  
 
Redeemed    
-  
     
-  
     
-  
     
-  
 
Outstanding, end of period    
80,000
    $
2.0
     
-  
    $
-  
 
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
    Three months ended
June 30,
    Six months ended
June 30,
 
    2019     2018     2019     2018  
Research and development   $
157
    $
152
    $
275
    $
518
 
General and administrative    
411
     
363
     
955
     
2,225
 
    $
568
    $
515
    $
1,230
    $
2,743