| Schedule of stock option activities |
| |
|
Number
of Options |
|
|
Weighted
Average Exercise Price |
|
|
Weighted
Average Remaining Contractual Term (Years) |
|
|
Aggregate
Intrinsic Value |
|
| Balance Outstanding December 31, 2017 |
|
|
14,894,213 |
|
|
|
0.32 |
|
|
|
|
|
|
$ |
7,948,708 |
|
| Exercised |
|
|
(1,595,403 |
) |
|
|
0.08 |
|
|
|
|
|
|
|
|
|
| Forfeited |
|
|
(134,597 |
) |
|
|
0.31 |
|
|
|
|
|
|
|
|
|
| Balance Outstanding September
30, 2018 |
|
|
13,164,213 |
|
|
$ |
0.36 |
|
|
|
6.71 |
|
|
$ |
1,869,623 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercisable, September 30, 2018 |
|
|
10,732,262 |
|
|
$ |
0.37 |
|
|
|
6.25 |
|
|
$ |
1,666,440 |
|
|
| |
|
Number
of Options |
|
|
Weighted
Average Exercise Price |
|
|
Weighted
Average Remaining Contractual Term (Years) |
|
|
Aggregate
Intrinsic Value |
|
| Balance Outstanding
December 31, 2015 |
|
|
8,274,879 |
|
|
$ |
0.29 |
|
|
|
8.11 |
|
|
$ |
12,951,384 |
|
| Granted |
|
|
2,789,334 |
|
|
|
0.75 |
|
|
|
|
|
|
|
|
|
| Exercised |
|
|
(500,000 |
) |
|
|
(0.03 |
) |
|
|
|
|
|
|
|
|
| Balance Outstanding December 31,
2016 |
|
|
10,564,213 |
|
|
|
0.42 |
|
|
|
7.73 |
|
|
$ |
14,637,188 |
|
| Granted |
|
|
4,330,000 |
|
|
|
0.29 |
|
|
|
|
|
|
|
|
|
| Balance Outstanding December 31,
2017 |
|
|
14,894,213 |
|
|
$ |
0.32 |
|
|
|
7.63 |
|
|
$ |
25,722,685 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercisable, December 31, 2017 |
|
|
10,877,251 |
|
|
$ |
0.30 |
|
|
|
7.02 |
|
|
$ |
19,329,789 |
|
|
| Schedule of warrant activities |
| |
|
Number
of Warrants |
|
|
Weighted
Average Exercise Price |
|
|
Weighted
Average Remaining Contractual Term (Years) |
|
|
Aggregate
Intrinsic Value |
|
| Balance Outstanding December 31, 2017 |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
$ |
- |
|
| Granted |
|
|
293,123 |
|
|
|
0.87 |
|
|
|
|
|
|
|
|
|
| Cancelled |
|
|
(293,123 |
) |
|
|
(0.87 |
) |
|
|
|
|
|
|
|
|
| Balance Outstanding September
30, 2018 |
|
|
- |
|
|
$ |
- |
|
|
|
- |
|
|
$ |
- |
|
| Exercisable, September 30, 2018 |
|
|
- |
|
|
$ |
- |
|
|
|
- |
|
|
$ |
- |
|
|
|