| Schedule of option activity |
|
|
|
|
Outstanding Stock Options |
| |
|
Options Available for Grant |
|
Number of Options Outstanding |
|
Weighted
Average
Exercise Price
per Option |
|
Weighted
Average Grant
Date Fair Value
per Option |
|
Weighted
Average
Remaining
Exercise Term
in Months |
| Balance, December 31, 2017 |
|
|
4,145,774 |
|
|
|
3,851,371 |
|
|
$ |
3.11 |
|
|
$ |
1.84 |
|
|
|
43 |
|
| Granted |
|
|
(340,000 |
) |
|
|
340,000 |
|
|
|
1.18 |
|
|
|
0.54 |
|
|
|
56 |
|
| Exercised |
|
|
- |
|
|
|
(52,500 |
) |
|
|
1.24 |
|
|
|
0.68 |
|
|
|
- |
|
| Forfeited |
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Expired |
|
|
- |
|
|
|
(271,250 |
) |
|
|
3.22 |
|
|
|
1.58 |
|
|
|
- |
|
| Balance, December 31, 2018 |
|
|
3,805,774 |
|
|
|
3,867,621 |
|
|
|
4.05 |
|
|
$ |
1.84 |
|
|
|
64 |
|
| Additional Shares Authorized under 2019 Plan |
|
|
8,000,000 |
|
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Granted |
|
|
(2,400,000 |
) |
|
|
2,400,000 |
|
|
|
0.96 |
|
|
|
0.53 |
|
|
|
81 |
|
| Exercised |
|
|
- |
|
|
|
(498,552 |
) |
|
|
0.13 |
|
|
|
1.92 |
|
|
|
|
|
| Forfeited |
|
|
1,375,069 |
|
|
|
(1,375,069 |
) |
|
|
4.75 |
|
|
|
1.95 |
|
|
|
27 |
|
| Expired |
|
|
- |
|
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Balance, June 30, 2019 |
|
|
10,780,843 |
|
|
|
4,394,000 |
|
|
$ |
2.60 |
|
|
$ |
1.32 |
|
|
|
94 |
|
|