Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Share-based Compensation (Tables)

v3.19.1
Note 13 - Share-based Compensation (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   
Three Months Ended
March 31,
 
   
2019
   
2018
 
Research and development
  $
58
    $
22
 
General and administrative
   
72
     
131
 
Total share-based compensation
  $
130
    $
153
 
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
   
42,500
     
4.00
     
 
 
Exercised
   
     
     
 
 
Expired/cancelled
   
(4,375
)    
5.65
     
 
 
Forfeited
   
(3,439
)    
6.65
     
 
 
Balances at March 31, 2019
   
674,045
    $
5.77
    $
517
 
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)
 
$1.00
-
$1.99
   
50,000
     
6.6
    $
1.50
     
50,000
     
6.6
 
$2.00
-
$2.99
   
132,900
     
6.7
     
2.28
     
131,233
     
6.7
 
$3.70
-
$3.99
   
124,571
     
7.7
     
3.88
     
100,822
     
7.7
 
$4.00
-
$4.99
   
134,104
     
8.8
     
4.54
     
53,583
     
8.2
 
$7.00
-
$26.00
   
232,470
     
7.9
     
10.42
     
94,453
     
6.2
 
 
 
 
   
674,045
     
7.7
    $
5.77
     
430,091
     
5.3