Stockholders' Equity (Tables)
|
12 Months Ended |
Dec. 31, 2020 |
|---|
| Equity [Abstract] |
|
| Summary of Outstanding Stock Warrants |
A summary of the status of the Company’s
outstanding stock warrants and changes during year ended is as follows:
| |
|
Number of
Warrants
|
|
|
Weighted Average
Exercise Price
|
|
|
Weighted Average
Remaining
Contractual Life
(in years)
|
|
| Outstanding as of December 31, 2018 |
|
|
182,191 |
|
|
$ |
25.04 |
|
|
|
2.8 |
|
| Expired |
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Exercised |
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Outstanding as of December 31, 2019 |
|
|
182,191 |
|
|
$ |
25.04 |
|
|
|
2.8 |
|
| Issued |
|
|
536,667 |
|
|
|
1.13 |
|
|
|
4.6 |
|
| Expired |
|
|
(17,969 |
) |
|
|
59.14 |
|
|
|
- |
|
| Exercised |
|
|
(413,233 |
) |
|
|
1.13 |
|
|
|
- |
|
| Outstanding as of December 31, 2020 |
|
|
287,656 |
|
|
$ |
12.64 |
|
|
|
2.7 |
|
| Warrants exercisable as of December 31, 2020 |
|
|
287,656 |
|
|
$ |
12.64 |
|
|
|
2.7 |
|
|
| Summary of Stock Options |
A summary of the stock options as of December
31, 2020 and changes during the year ended is as follows:
| |
|
Number
of Shares |
|
|
Weighted Average
Exercise Price |
|
|
Weighted Average
Remaining
Contractual Life
(in years)
|
|
| Outstanding as of December 31, 2019 |
|
|
1,731,745 |
|
|
$ |
5.50 |
|
|
|
7.92 |
|
| Cancelled |
|
|
(1,587,500 |
) |
|
|
2.28 |
|
|
|
- |
|
| Exercised |
|
|
(25,000 |
) |
|
|
2.04 |
|
|
|
- |
|
| Expired |
|
|
(13,125 |
) |
|
|
83.62 |
|
|
|
- |
|
| Outstanding as of December 31, 2020 |
|
|
106,120 |
|
|
$ |
44.32 |
|
|
|
4.28 |
|
| Options vested and expected to vest as of December 31, 2020 |
|
|
106,120 |
|
|
$ |
44.32 |
|
|
|
4.28 |
|
| Options vested and exercisable as of December 31, 2020 |
|
|
106,120 |
|
|
$ |
44.32 |
|
|
|
4.28 |
|
A summary of the stock options as of December 31, 2019 and changes
during the year ended is as follows:
| |
|
Number
of Shares |
|
|
Weighted Average
Exercise Price |
|
|
Weighted Average
Remaining
Contractual Life
(in years)
|
|
| Outstanding as of December 31, 2018 |
|
|
1,466,520 |
|
|
$ |
6.66 |
|
|
|
9.49 |
|
| Granted |
|
|
275,000 |
|
|
|
2.04 |
|
|
|
4.81 |
|
| Expired |
|
|
(9,775 |
) |
|
|
82.05 |
|
|
|
- |
|
| Outstanding as of December 31, 2019 |
|
|
1,731,745 |
|
|
$ |
5.50 |
|
|
|
7.92 |
|
| Options vested and expected to vest as of December 31, 2019 |
|
|
1,731,745 |
|
|
$ |
5.50 |
|
|
|
7.92 |
|
| Options vested and exercisable as of December 31, 2019 |
|
|
1,594,245 |
|
|
$ |
5.80 |
|
|
|
8.21 |
|
|
| Summary of Restricted Stock Award Activity |
A summary of the RSUs as of December 31, 2020
and 2019, respectively and changes during the period are presented below:
| |
|
Number
of Units |
|
|
Weighted Average
Grant Date Fair
Value
|
|
| Nonvested at December 31, 2018 |
|
|
43,750 |
|
|
$ |
6.88 |
|
| Granted |
|
|
150,000 |
|
|
$ |
1.73 |
|
| Vested |
|
|
(175,000 |
) |
|
$ |
2.47 |
|
| Nonvested at December 31, 2019 |
|
|
18,750 |
|
|
$ |
6.88 |
|
| Granted |
|
|
2,745,639 |
|
|
$ |
0.43 |
|
| Vested |
|
|
(2,198,110 |
) |
|
$ |
0.49 |
|
| Nonvested at December 31, 2020 |
|
|
566,279 |
|
|
$ |
0.43 |
|
| |
|
Number
of Units |
|
|
Weighted Average
Grant Date Fair
Value
|
|
| Nonvested at December 31, 2019 |
|
|
18,750 |
|
|
$ |
6.88 |
|
| Granted |
|
|
2,745,639 |
|
|
$ |
0.43 |
|
| Vested |
|
|
(2,198,110 |
) |
|
$ |
0.48 |
|
| Nonvested at December 31, 2020 |
|
|
566,279 |
|
|
$ |
0.45 |
|
| |
|
Number of Units |
|
|
Weighted Average
Grant Date Fair
Value
|
|
| Anticipated Vesting |
|
|
- |
|
|
$ |
- |
|
| March 31, 2021 |
|
|
566,279 |
|
|
$ |
0.43 |
|
|