Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.19.1
Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2019
Stockholders' Equity Note [Abstract]  
Nonvested Restricted Stock Shares Activity [Table Text Block] The following table summarizes restricted stock award activity for the three months ended March 31, 2019:
 
 
Number of Units
 
 
Weighted Average
Grant Date Fair
Value
 
Nonvested at December 31, 2018
 
 
2,932,106
 
 
$
4.22
 
Granted
 
 
713,000
 
 
 
3.25
 
Vested
 
 
(93,647
)
 
 
1.22
 
Nonvested at March 31, 2019
 
 
3,551,459
 
 
$
4.24
 
Share-based Compensation, Stock Options, Activity [Table Text Block]
The following table summarizes stock option award activity for the three months ended March 31, 2019:
 
 
 
Stock Options
 
 
Weighted Average
Exercise Price
 
 
Weighted Average
Remaining
Contractual Life
(in years)
 
Outstanding as of December 31, 2018
 
 
60,000
 
 
$
5.43
 
 
 
8.09
 
Granted
 
 
50,000
 
 
 
3.25
 
 
 
9.82
 
Outstanding as of March 31, 2019
 
 
110,000
 
 
$
4.44
 
 
 
8.74
 
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
A summary of warrant activities for the three months ended March 31, 2019 is presented below:
 
 
 
Warrants
 
 
Weighted Average
Exercise Price
 
 
Weighted Average
Remaining
Contractual Life
(in years)
 
Outstanding as of December 31, 2018
 
 
4,280,972
 
 
$
6.69
 
 
 
2.33
 
Granted
 
 
-
 
 
 
-
 
 
 
 
 
Exercised
 
 
(39,651
)
 
 
-
 
 
 
 
 
Outstanding as of March 31, 2019
 
 
4,241,321
 
 
$
6.76
 
 
 
2.04
 
Share-based Compensation, Activity [Table Text Block]
The following table summarizes stock-based compensation expense for the three months ended March 31, 2019 and 2018 ($ in thousands):
 
 
 
For the three months ended March 31,
 
 
 
2019
 
 
2018
 
Research and development
 
$
196
 
 
$
680
 
General and administrative
 
 
602
 
 
 
457
 
Total stock-based compensation expense
 
$
798
 
 
$
1,137