Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Tables)

v3.19.1
Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2018
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, 2018 and 2017:
 
 
 
Number of Units
 
 
Weighted Average

Grant Date Fair

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
 
Granted
 
 
616,240
 
 
 
3.75
 
Vested
 
 
(295,250
)
 
 
0.29
 
Nonvested at December 31, 2018
 
 
2,932,106
 
 
$
4.22
 
Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table summarizes stock option award activity for the year ended December 31, 2018 and 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
 
Granted
 
 
-
 
 
 
-
 
 
 
 
 
Outstanding as of December 31, 2018
 
 
60,000
 
 
$
5.43
 
 
 
8.09
 
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
A summary of warrant activities for year ended December 31, 2018 and 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
 
Granted
 
 
-
 
 
 
-
 
 
 
 
 
Exercised
 
 
(45,583
)
 
 
-
 
 
 
 
 
Outstanding as of December 31, 2018
 
 
4,280,972
 
 
$
6.69
 
 
 
2.33
 
Share-based Compensation, Activity [Table Text Block]
The following table summarizes stock-based compensation expense for the years ended December 31, 2018 and 2017 ($ in thousands).
 
 
For the year ended December 31,
 
 
 
2018
 
 
2017
 
Research and development
 
$
95
 
 
$
1,180
 
General and administrative
 
 
1,899
 
 
 
1,937
 
Total stock-based compensation expense
 
$
1,994
 
 
$
3,117