8. Stock Options and Warrants (Tables)
|
12 Months Ended |
Dec. 31, 2017 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |
|
Stock options outstanding |
|
|
Options |
|
|
Weighted
Avg.
Exercise
Price
|
|
Options outstanding, January
1, 2016 |
|
|
21,535,148 |
|
|
$ |
0.20 |
|
Options granted |
|
|
2,250,527 |
|
|
|
0.46 |
|
Options exercised |
|
|
– |
|
|
|
– |
|
Options
cancelled |
|
|
(311,419 |
) |
|
|
0.72 |
|
Options outstanding, December 31, 2016 |
|
|
23,474,256 |
|
|
$ |
0.30 |
|
Options granted |
|
|
12,561,852 |
|
|
|
0.12 |
|
Options exercised |
|
|
(449,754 |
) |
|
|
0.05 |
|
Options
cancelled |
|
|
(188,679 |
) |
|
|
0.53 |
|
Options outstanding,
December 31, 2017 |
|
|
35,397,675 |
|
|
$ |
0.23 |
|
|
Options outstanding by Per Share Price |
|
|
|
|
|
Outstanding
Options |
|
|
|
Exercisable
Options |
|
|
Option
Exercise
Price
Per
Share
|
|
|
|
Shares |
|
|
|
Life
(Years)
|
|
|
|
Weighted
Average
Exercise
Price
|
|
|
|
Shares |
|
|
|
Weighted
Average
Exercise
Price
|
|
|
$ 0.05
- $ 0.99 |
|
|
|
35,247,229 |
|
|
|
5.6 |
|
|
$ |
0.22 |
|
|
|
31,147,229 |
|
|
$ |
0.22 |
|
|
$
1.00 - $ 1.99 |
|
|
|
150,446 |
|
|
|
5.6 |
|
|
$ |
1.18 |
|
|
|
150,446 |
|
|
$ |
1.18 |
|
|
|
|
|
|
35,397,675 |
|
|
|
|
|
|
$ |
0.23 |
|
|
|
31,297,675 |
|
|
$ |
0.22 |
|
|
Assumptions |
|
|
Years
Ended |
|
|
|
2017 |
|
|
|
2016 |
|
Expected
life (years) |
|
|
5 –
6 |
|
|
|
|
5.5 |
|
Risk free interest rate |
|
|
1.72 – 1.94% |
|
|
|
|
1.23 – 1.72% |
|
Volatility |
|
|
114 – 124% |
|
|
|
|
119 – 121% |
|
Expected dividend yield |
|
|
0% |
|
|
|
|
0% |
|
Warrants outstanding |
|
|
Warrants |
|
|
Weighted
Avg.
Exercise
Price
|
|
Warrants outstanding, January
1, 2016 |
|
|
4,411,667 |
|
|
$ |
0.31 |
|
Warrants granted |
|
|
8,735,225 |
|
|
|
0.11 |
|
Warrants exercised |
|
|
– |
|
|
|
– |
|
Warrants
cancelled |
|
|
(1,700,000 |
) |
|
|
0.30 |
|
Warrants outstanding, December 31, 2016 |
|
|
11,446,892 |
|
|
$ |
0.15 |
|
Warrants granted |
|
|
16,160,770 |
|
|
|
0.05 |
|
Warrants exercised |
|
|
(4,414,000 |
) |
|
|
0.08 |
|
Warrants
cancelled |
|
|
(5,571,225 |
) |
|
|
0.10 |
|
Warrants outstanding,
December 31, 2017 |
|
|
17,622,437 |
|
|
$ |
0.09 |
|
|
Warrants outstanding by Per Share Price |
|
|
|
|
|
Outstanding
Warrants |
|
|
|
Exercisable
Warrants |
|
|
Warrant
Exercise
Price
Per
Share
|
|
|
|
Shares |
|
|
|
Life
(Years)
|
|
|
|
Weighted
Average
Exercise
Price
|
|
|
|
Shares |
|
|
|
Weighted
Average
Exercise
Price
|
|
|
$
0.05 - $ 0.99 |
|
|
|
17,622,437 |
|
|
|
0.9 |
|
|
$ |
0.09 |
|
|
|
17,572,437 |
|
|
$ |
0.09 |
|
|
|
|
|
|
17,622,437 |
|
|
|
|
|
|
$ |
0.09 |
|
|
|
17,572,437 |
|
|
$ |
0.09 |
|
|