Stockholders' Equity (Tables)
|
12 Months Ended |
Dec. 31, 2019 |
|---|
| Equity [Abstract] |
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| Summary of Black-Scholes Option Pricing Model to Stock Options Granted Assumption |
In applying the Black-Scholes option pricing
model to options granted, the Company used the following assumptions:
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For the Years Ended |
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December 31, |
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2019 |
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2018 |
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| Risk free interest rate |
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1.52%-1.71 |
% |
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|
2.75 |
% |
| Expected term (years) |
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|
5.00-6.00 |
|
|
|
2.50 |
|
| Expected volatility |
|
|
131.10%-138.40 |
% |
|
|
150.10 |
% |
| Expected dividends |
|
|
0.00 |
% |
|
|
0.00 |
% |
|
| Summary of Options Activity |
A summary of the option activity during the
year ended December 31, 2019 is presented below:
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Weighted |
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Weighted |
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Average |
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Average |
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Remaining |
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Aggregate |
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Number of |
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Exercise |
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Life |
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Intrinsic |
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Shares |
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Price |
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In Years |
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Value |
|
| Outstanding, January 1, 2019 |
|
|
105,308 |
|
|
$ |
33.10 |
|
|
|
|
|
|
|
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| Granted |
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|
191,542 |
|
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|
2.88 |
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| Exercised |
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- |
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|
- |
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|
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| Cancelled/forfeited/expired |
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(31,300 |
) |
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44.79 |
|
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|
|
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| Outstanding, December 31, 2019 |
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|
265,550 |
|
|
$ |
9.93 |
|
|
|
5.6 |
|
|
$ |
- |
|
| |
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|
|
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| Exercisable, December 31, 2019 |
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136,708 |
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|
$ |
16.74 |
|
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|
3.6 |
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|
$ |
- |
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| Schedule of Stock Options |
The following table presents information related
to stock options at December 31, 2019:
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|
Options Outstanding |
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Options Exercisable |
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|
Weighted |
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|
Weighted |
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|
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| Range of |
|
Average |
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|
Outstanding |
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|
Average |
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Exercisable |
|
| Exercise |
|
Exercise |
|
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Number of |
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|
Remaining Life |
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Number of |
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| Price |
|
Price |
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|
Options |
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In Years |
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|
Options |
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$2.17 - $13.50 |
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3.10 |
|
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|
209,042 |
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|
4.19 |
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|
80,200 |
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$15.50 - $47.50 |
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|
32.59 |
|
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|
48,508 |
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2.88 |
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|
48,508 |
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$50.00 - $78.00 |
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50.50 |
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|
8,000 |
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|
1.30 |
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|
8,000 |
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| |
|
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|
|
|
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|
265,550 |
|
|
|
3.6 |
|
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|
136,708 |
|
|
| Schedule of Warrant Activity |
The following table accounts for the Company’s warrant activity
for the year ended December 31, 2019:
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Weighted |
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Weighted |
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Average |
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Average |
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Remaining |
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Aggregate |
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Number of |
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|
Exercise |
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|
Life |
|
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Intrinsic |
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| |
|
Shares |
|
|
Price |
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In Years |
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|
Value |
|
| Outstanding, January 1, 2019 |
|
|
6,837,061 |
|
|
$ |
4.64 |
|
|
|
|
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| Issued |
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- |
|
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|
- |
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|
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| Exercised |
|
|
- |
|
|
|
- |
|
|
|
|
|
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| Cancelled/forfeited/expired |
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|
(1,250 |
) |
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|
35.00 |
|
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| Outstanding, December 31, 2019 |
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|
6,835,811 |
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|
$ |
4.64 |
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|
3.2 |
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$ |
- |
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| Exercisable, December 31, 2019 |
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|
6,835,811 |
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|
$ |
4.64 |
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|
3.2 |
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|
$ |
- |
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| Schedule of Stock Warrants |
The following table presents information related
to stock warrants at December 31, 2019:
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Warrants Outstanding |
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Warrants Exercisable |
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|
|
Weighted |
|
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|
Weighted |
|
|
|
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| Range of |
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|
Average |
|
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Outstanding |
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|
Average |
|
|
Exercisable |
|
| Exercise |
|
|
Exercise |
|
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Number of |
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|
Remaining Life |
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Number of |
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| Price |
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|
Price |
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|
Warrants |
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In Years |
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|
Warrants |
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$4.25 - $75.00 |
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$ |
4.60 |
|
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|
6,833,278 |
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|
3.2 |
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|
6,833,278 |
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| |
$100.00 - $150.00 |
|
|
|
100.26 |
|
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|
2,533 |
|
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|
2.6 |
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|
2,533 |
|
| |
|
|
|
|
|
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|
6,835,811 |
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|
3.2 |
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|
6,835,811 |
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