Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Tables)

v3.8.0.1
Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2017
Stockholders' Equity Note [Abstract]  
Nonvested Restricted Stock Shares Activity [Table Text Block]
The following table summarizes restricted stock award activity for the year ended December 31, 2017:
 
 
 
 
 
 
Weighted Average
 
 
 
 
 
 
Grant Date Fair
 
 
 
Number of Units
 
Value
 
Nonvested at December 31, 2016
 
 
2,533,063
 
$
2.93
 
Granted
 
 
359,303
 
 
7.69
 
Vested
 
 
(281,250)
 
 
0.07
 
Nonvested at December 31, 2017
 
 
2,611,116
 
$
3.89
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table summarizes stock option award activity for the year ended December 31, 2017.
 
 
 
Stock Options
 
Weighted Average
Exercise Price
 
Weighted Average
Remaining
Contractual Life
(in years)
 
Outstanding as of December 31, 2016
 
 
60,000
 
$
5.43
 
 
9.96
 
Granted
 
 
-
 
 
-
 
 
 
 
Outstanding as of December 31, 2017
 
 
60,000
 
$
5.43
 
 
9.09
 
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
A summary of warrant activities for year ended December 31, 2017 is presented below:
 
 
 
Warrants
 
Weighted Average
Exercise Price
 
Weighted Average
Remaining
Contractual Life
(in years)
 
Outstanding as of December 31, 2016
 
 
4,331,106
 
$
6.62
 
 
4.67
 
Granted
 
 
-
 
 
-
 
 
 
 
Exercised
 
 
(4,551)
 
 
-
 
 
 
 
Outstanding as of December 31, 2017
 
 
4,326,555
 
$
6.62
 
 
3.67
 
Schedule of Share-based Compensation, Activity [Table Text Block]
The following table summarizes stock-based compensation expense for the years ended December 31, 2017 and 2016 ($ in thousands).
 
 
 
For the year ended December 31,
 
 
 
2017
 
2016
 
2015
 
Research and development
 
$
1,180
 
$
2,557
 
$
2,987
 
General and administrative
 
 
1,937
 
 
1,310
 
 
265
 
Total stock-based compensation expense
 
$
3,117
 
$
3,867
 
$
3,252