| Schedule of Concerning Options and Warrants Outstanding and Exercisable |
The following tables
summarize information concerning options and warrants outstanding and exercisable:
| |
|
Stock Options |
|
|
Warrants |
|
|
Total |
|
| |
|
Shares |
|
|
Weighted
Average
price per
share
|
|
|
Shares |
|
|
Weighted
Average
price per
share
|
|
|
Shares |
|
|
Exercisable |
|
| Balance outstanding, January 1, 2017 |
|
|
175,642 |
|
|
$ |
12.60 |
|
|
|
881,989 |
|
|
$ |
12.00 |
|
|
|
1,057,631 |
|
|
|
991,032 |
|
| Granted |
|
|
87,198 |
|
|
|
8.40 |
|
|
|
245,661 |
|
|
|
11.14 |
|
|
|
332,859 |
|
|
|
|
|
| Exercised |
|
|
- |
|
|
|
- |
|
|
|
(19,889 |
) |
|
|
7.50 |
|
|
|
(19,889 |
) |
|
|
|
|
| Expired |
|
|
(3,202 |
) |
|
|
30.00 |
|
|
|
(208,219 |
) |
|
|
11.46 |
|
|
|
(211,421 |
) |
|
|
|
|
| Forfeited |
|
|
(11,946 |
) |
|
|
9.82 |
|
|
|
- |
|
|
|
- |
|
|
|
(11,946 |
) |
|
|
|
|
| Balance outstanding, December 31, 2017 |
|
|
247,692 |
|
|
$ |
10.95 |
|
|
|
899,542 |
|
|
$ |
12.03 |
|
|
|
1,147,23431 |
|
|
|
1,073,850 |
|
| Granted |
|
|
574,468 |
|
|
|
3.39 |
|
|
|
6,877,948 |
|
|
|
3.50 |
|
|
|
7,452,416 |
|
|
|
|
|
| Exercised |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
|
|
| Expired |
|
|
(334 |
) |
|
|
30.00 |
|
|
|
(12,669 |
) |
|
|
12.00 |
|
|
|
(13,003 |
) |
|
|
|
|
| Forfeited |
|
|
(455,092 |
) |
|
|
7.49 |
|
|
|
- |
|
|
|
- |
|
|
|
(455,092 |
) |
|
|
|
|
| Balance outstanding, December 31, 2018 |
|
|
366,734 |
|
|
$ |
3.39 |
|
|
|
7,764,821 |
|
|
$ |
3.50 |
|
|
|
8,131,555 |
|
|
|
7,792,570 |
|
|