Stockholders' Equity (Tables)
|
9 Months Ended |
Sep. 30, 2019 |
Stockholders' Equity Note [Abstract] |
|
Schedule of stock-based compensation |
|
|
For the
Three Months Ended September 30, |
|
|
For Nine
Months Ended
September 30, |
|
|
|
2019 |
|
|
2018 |
|
|
2019 |
|
|
2018 |
|
Research and development |
|
$ |
201,259 |
|
|
$ |
1,188,545 |
|
|
$ |
711,401 |
|
|
$ |
2,299,934 |
|
General and administrative |
|
|
383,251 |
|
|
|
424,809 |
|
|
|
1,300,932 |
|
|
|
1,100,598 |
|
Total |
|
$ |
584,510 |
|
|
$ |
1,613,354 |
|
|
$ |
2,012,333 |
|
|
$ |
3,400,532 |
|
|
Schedule of stock option activity |
|
|
|
|
|
|
|
|
Weighted Average |
|
|
|
|
|
|
Stock
Options |
|
|
Exercise
Price |
|
|
Fair Value |
|
|
Contractual |
|
|
Aggregate |
|
|
|
Outstanding |
|
|
Exercisable |
|
|
Outstanding |
|
|
Exercisable |
|
|
Vested |
|
|
Life
(Years) |
|
|
Intrinsic
Value |
|
Balance – December 31, 2018 |
|
|
5,488,282 |
|
|
|
4,384,294 |
|
|
$ |
2.10 |
|
|
$ |
1.32 |
|
|
$ |
1.32 |
|
|
|
5.80 |
|
|
$ |
- |
|
Granted |
|
|
2,579,000 |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Exercised |
|
|
(233,214 |
) |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Cancelled |
|
|
(177,672 |
) |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Balance – September 30, 2019 |
|
|
7,656,396 |
|
|
|
4,646,317 |
|
|
$ |
2.14 |
|
|
$ |
1.50 |
|
|
$ |
1.50 |
|
|
|
6.27 |
|
|
$ |
833,793 |
|
|
Schedule of stock options outstanding and exercisable |
Grant Price |
|
|
Weighted Average Exercise |
|
|
Total |
|
|
Number |
|
|
Weighted Average |
From |
|
|
To |
|
|
Price |
|
|
Outstanding |
|
|
Exercisable |
|
|
Remaining Contractual Term |
$ |
0.26 |
|
|
$ |
2.02 |
|
|
$ |
0.89 |
|
|
|
3,298,353 |
|
|
|
3,282,936 |
|
|
3.81 years |
$ |
2.10 |
|
|
$ |
4.60 |
|
|
$ |
2.47 |
|
|
|
3,665,043 |
|
|
|
936,167 |
|
|
8.89 years |
$ |
5.30 |
|
|
$ |
8.86 |
|
|
$ |
6.62 |
|
|
|
693,000 |
|
|
|
427,214 |
|
|
8.61 years |
|
|
|
|
|
|
|
|
|
Totals |
|
|
|
7,656,396 |
|
|
|
4,646,317 |
|
|
Schedule of warrants activity |
|
|
|
|
|
|
|
|
Weighted Average |
|
|
|
|
|
|
Warrants |
|
|
Exercise Price |
|
|
Fair Value |
|
|
Contractual |
|
|
Aggregate |
|
|
|
Outstanding |
|
|
Exercisable |
|
|
Outstanding |
|
|
Exercisable |
|
|
Vested |
|
|
Life
(Years) |
|
|
Intrinsic
Value |
|
Balance – December 31, 2018 |
|
|
4,964,205 |
|
|
|
4,907,223 |
|
|
$ |
2.39 |
|
|
$ |
2.39 |
|
|
$ |
1.14 |
|
|
|
2.27 |
|
|
$ |
- |
|
Granted |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Exercised |
|
|
(50,000 |
) |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Cancelled |
|
|
(6,982 |
) |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
Balance – September 30, 2019 |
|
|
4,907,223 |
|
|
|
4,907,223 |
|
|
$ |
2.40 |
|
|
$ |
2.40 |
|
|
$ |
1.11 |
|
|
|
1.55 |
|
|
$ |
1,175,115 |
|
|