Annual report pursuant to Section 13 and 15(d)

Note 11 - Stock-based Compensation (Tables)

v3.20.1
Note 11 - Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Option numbers are in (000’s)                
      Options     Year ended
December 31, 2019
Weighted average
exercise price		    
Weighted
average
remaining
contractual
life(years)		    

Aggregate
Intrinsic
Value		  
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
      
 
      
 
  
Granted    
2,160
      
2.00
      
 
      
 
  
Exercised    
(312
 )    
2.32
      
 
      
 
  
Expired    
(67
 )    
4.61
      
 
      
 
  
Forfeited    
(329
 )    
2.36
      
 
      
 
  
Outstanding, December 31, 2019    
5,941
      
2.84
      
7.6
      
16,866,623
  
Exercisable, December 31, 2019    
3,057
      
3.44
      
6.5
      
6,853,978
  
Vested and expected to vest, December 31, 2109    
5,508
      
2.89
      
7.5
      
15,364,726
  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
    Year ended
December 31, 2019		     Year ended
December 31, 2018		  
Risk-free interest rate    
2.18
 %    
2.43
 %
Expected dividend yield    
-
      
-
  
Expected volatility    
83.9
 %    
93.3
 %
Expected life of options (years)    
5
      
5
  
Grant date fair value   $
1.34
     $
2.22
  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
    Year ended,
December 31, 2019		   Year ended,
December 31, 2018
   
Number
(in thousands)		       Weighted
average grant
date fair value		    
Number
(in thousands)		       Weighted
average grant
date fair value
Outstanding, December 31. 2018    
-
     $
-
     
-
     $
-
  
Granted    
80
      
2.00
      
150
      
3.35
  
Redeemed    
(40
 )    
2.00
      
(150
 )    
3.35
  
Outstanding, December 31, 2019    
40
     $
2.00
      
-
     $
-
  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
      Year ended
December 31, 2019		       Year ended
December 31, 2018
Research and development   $
474
     $
1,026
  
General and administrative    
1,822
      
3,250
  
Total   $
2,296
     $
4,276