Stockholders’ Equity (Tables)
|
9 Months Ended |
Sep. 30, 2021 |
|---|
| Stockholders' Equity Note [Abstract] |
|
| Schedule of warrant and stock option grants with time-based vesting |
| |
|
Warrant Grants |
|
|
Stock Option Grants |
|
|
Restricted
Stock Units |
|
| |
|
Number of
shares
subject to
warrants |
|
|
Weighted-
average
exercise
price per
share |
|
|
Number of
shares
subject to
options |
|
|
Weighted-
average
exercise
price per
share |
|
|
Number of
shares
subject to
restricted
stock units |
|
| Balance at December 31, 2020 |
|
|
672,459 |
|
|
$ |
8.09 |
|
|
|
118,388 |
|
|
$ |
3.25 |
|
|
|
2,301,053 |
|
| Granted |
|
|
389,344 |
|
|
|
2.30 |
|
|
|
- |
|
|
|
- |
|
|
|
843,338 |
|
| Exercised |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
(675,219 |
) |
| Expired |
|
|
(11,699 |
) |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
(150,833 |
) |
| Balance at September 30, 2021 |
|
|
1,050,104 |
|
|
$ |
2.57 |
|
|
|
118,388 |
|
|
$ |
3.25 |
|
|
|
2,318,339 |
|
| Exercisable at September 30, 2021 |
|
|
1,050,104 |
|
|
$ |
2.57 |
|
|
|
118,388 |
|
|
$ |
3.25 |
|
|
|
1,464,631 |
|
|
| Schedule of fair value of the warrants as of original issuance date |
| |
|
Issuance date |
|
| Risk-free interest rate |
|
|
0.49 - 0.88 |
% |
| Expected dividend yield |
|
|
- |
% |
| Expected volatility |
|
|
100 |
% |
| Term |
|
|
5 years |
|
| Fair value of common stock |
|
|
1.95 - 2.24 |
|
|
| Schedule of company’s outstanding warrants and options |
| Warrants Outstanding |
|
|
Warrants Exercisable |
|
Exercise Price
Range |
|
|
Number Outstanding |
|
|
Weighted Average
Remaining
Contractual Life
(in years) |
|
|
Weighted Average
Exercise Price |
|
|
Number Exercisable |
|
|
Weighted Average
Exercise Price |
|
|
Intrinsic Value |
|
| $ |
1.79 - $20.90 |
|
|
|
1,050,104 |
|
|
|
3.23 |
|
|
$ |
2.57 |
|
|
1,050,104 |
|
|
$ |
2.57 |
|
|
|
290,525 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Options Outstanding |
|
|
Options Exercisable |
|
Exercise Price
Range |
|
|
Number Outstanding |
|
|
Weighted Average
Remaining
Contractual Life
(in years) |
|
|
Weighted Average
Exercise Price |
|
|
Number Exercisable |
|
|
Weighted Average
Exercise Price |
|
|
Intrinsic Value |
|
| $ |
2.64 - $28.50 |
|
|
|
118,388 |
|
|
|
2.94 |
|
|
$ |
3.25 |
|
|
118,388 |
|
|
$ |
3.25 |
|
|
|
- |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Schedule of stock-based compensation expense |
| |
|
For the
three months ended |
|
|
For the
nine months ended |
|
| |
|
September 30, |
|
|
September 30, |
|
| |
|
2021 |
|
|
2020 |
|
|
2021 |
|
|
2020 |
|
| Stock-based compensation expense |
|
$ |
699,084 |
|
|
$ |
488,304 |
|
|
$ |
1,929,446 |
|
|
$ |
2,844,851 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Schedule of stock-based compensation expense categorized by the equity components |
| |
|
For the
three months ended |
|
|
For the
nine months ended |
|
| |
|
September 30, |
|
|
September 30, |
|
| |
|
2021 |
|
|
2020 |
|
|
2021 |
|
|
2020 |
|
| Common stock |
|
$ |
699,084 |
|
|
$ |
488,304 |
|
|
$ |
1,929,446 |
|
|
$ |
2,844,851 |
|
| Total |
|
$ |
699,084 |
|
|
$ |
488,304 |
|
|
$ |
1,929,446 |
|
|
$ |
2,844,851 |
|
|