Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Share-based Compensation (Tables)

v3.19.2
Note 13 - Share-based Compensation (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
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
  $
67
    $
81
    $
125
    $
103
 
General and administrative
   
115
     
211
     
187
     
342
 
Total share-based compensation
  $
182
    $
292
    $
312
    $
445
 
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   
Shares
Underlying
Options
Outstanding
   
Weighted
Average Exercise
Price Per Share
   
Aggregate
Intrinsic Value
 
Balances at December 31, 2018
   
639,359
    $
5.90
    $
 
Granted
   
670,825
     
4.56
     
 
 
Exercised
   
(50,000
)    
1.50
     
 
 
Expired/cancelled
   
(7,186
)    
5.37
     
 
 
Forfeited
   
(3,439
)    
6.65
     
 
 
Balances at June 30, 2019
   
1,249,559
    $
5.41
    $
460
 
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]
       
Outstanding, Vested and Expected to Vest
   
Options Vested and Exercisable
 
Per Share Exercise Price
 
Shares
   
Weighted Average Remaining Contractual Life (Years)
   
Weighted Average Exercise Price
   
Options Exercisable
   
Weighted Average Remaining Contractual Life (Years)
 
                                             
$2.00
-
$2.99
   
132,900
     
6.5
    $
2.32
     
131,650
     
6.5
 
$3.00
-
$3.99
   
122,905
     
7.5
     
3.95
     
103,530
     
7.5
 
$4.00
-
$4.99
   
761,804
     
9.7
     
4.60
     
64,104
     
8.1
 
$7.00
-
$26.00
   
231,950
     
7.7
     
10.62
     
109,500
     
6.3
 
 
 
 
   
1,249,559
     
8.8
    $
5.41
     
408,784
     
6.9