Annual report pursuant to Section 13 and 15(d)

Note 9 - Stock-based Compensation (Tables)

v3.19.1
Note 9 - Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2018
Notes Tables  
Share-based Compensation, Stock Options, Activity [Table Text Block]
Option numbers are in (000’s)                
        Year ended
December 31, 2018		   Weighted
average		   Aggregate
      Options     Weighted average
exercise price		   remaining
contractual
life (years)		   Intrinsic
Value
                 
Outstanding, January 1, 2017    
2,005
     $
4.31
      
 
      
 
  
Granted    
826
      
1.19
      
 
      
 
  
Expired    
(323
 )    
4.58
      
 
      
 
  
Forfeited    
(164
 )    
3.35
      
 
      
 
  
Outstanding, December 31, 2017    
2,344
     $
3.46
      
 
      
 
  
Granted    
2,320
      
2.98
      
 
      
 
  
Exercised    
(114
 )    
2.04
      
 
      
 
  
Expired    
(51
 )    
2.34
      
 
      
 
  
Forfeited    
(10
 )    
4.97
      
 
      
 
  
Outstanding, December 31, 2018    
4,489
     $
3.11
      
7.9
     $
562,438
  
Exercisable, December 31, 2018    
2,544
     $
3.41
      
7.1
      
273,907
  
Vested and expected to vest,
December 31, 2108		    
4,196
     $
3.06
      
7.8
      
519,159
  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
      Year ended
December 31, 2018		       Year ended
December 31, 2017
         
Risk-free interest rate    
2.43
 %    
1.32
 %
Expected dividend yield    
-
      
-
  
Expected volatility    
93.3
 %    
98
 %
Expected life of options (years)    
5
      
5
  
Grant date fair value   $
2.22
     $
0.87
  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
    Year ended,
December 31, 2018		   Year ended,
December 31, 2017
    Number
(in thousands)		  
Weighted
average grant
date fair value
   Number
(in thousands)		  
Weighted
average
grant date
 fair value
Outstanding, beginning of period  
-
  
$-
  
-
  
$-
Granted    
150
 
    
3.35
 
    
150
 
    
1.14
 
Redeemed    
(150
)
    
3.35
 
    
(150
)
    
1.14
 
Outstanding, end of period    
-
 
   $
-
 
    
-
 
   $
-
 
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
    Year ended
December 31, 2018		   Year ended
December 31, 2017
         
Research and development   $
1,026
     $
214
  
General and administrative    
3,250
      
603
  
Total   $
4,276
     $
817