7. Stockholders' Equity (Tables)
|
6 Months Ended |
Jun. 30, 2019 |
|---|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Stock Option Activity |
he following table summarizes stock option activity for the year
ended December 31, 2018 and for the six months ended June 30, 2019:
| |
Options |
| Outstanding at December 31, 2017 |
6,818,948 |
| Granted |
855,000 |
| Exercised |
(12,500) |
| Forfeit/canceled |
(1,566,589) |
| Expired |
(1,082,641) |
| Outstanding at December 31, 2018 |
5,012,218 |
| Granted |
2,065,000 |
| Exercised |
- |
| Forfeit/canceled |
(524,848) |
| Expired |
(444,652) |
| Outstanding at June 30, 2019 |
6,107,718 |
|
| Stock-Based Compensation Expense |
he impact on our results of operations of
recording stock-based compensation expense for the three and six months ended June 30, 2019 and 2018 were as follows:
| |
|
Three Months Ended |
|
Six Months Ended |
| |
|
June 30, |
|
June 30, |
| |
|
2019 |
|
2018 |
|
2019 |
|
2018 |
| General and administrative |
|
$ |
438,283 |
|
$ |
62,187 |
|
$ |
490,037 |
|
$ |
217,851 |
| Sales and marketing |
|
|
26,152 |
|
|
55,617 |
|
|
58,097 |
|
|
124,097 |
| Engineering, research, and development |
|
|
31,370 |
|
|
37,098 |
|
|
63,418 |
|
|
65,796 |
| |
|
$ |
495,805 |
|
$ |
154,902 |
|
$ |
611,552 |
|
$ |
407,744 |
|
| Valuation Assumptions |
The following weighted average assumptions were used
for the six months ended June 30, 2019 and 2018.
| |
|
Six Months Ended |
| |
|
June 30, |
| |
|
2019 |
|
2018 |
| Risk-free interest rate |
|
2.25 |
% |
|
2.68 |
% |
| Expected life (years) |
|
6.00 |
|
|
6.00 |
|
| Expected dividend yield |
|
- |
% |
|
- |
% |
| Expected volatility |
|
81.67 |
% |
|
101.94 |
% |
|
| Restricted Stock Unit Activity |
The following table summarizes restricted stock unit activity under
our stock-based plans for the year ended December 31, 2018 and for the six months ended June 30, 2019:
| |
|
Shares |
| Outstanding at December 31, 2017 |
|
|
662,800 |
| Awarded |
|
|
- |
| Released |
|
|
- |
| Canceled/forfeited/expired |
|
|
- |
| Outstanding at December 31, 2018 |
|
|
662,800 |
| Awarded |
|
|
294,448 |
| Released |
|
|
- |
| Canceled/forfeited/expired |
|
|
- |
| Outstanding at June 30, 2019 |
|
|
957,248 |
| |
|
|
|
| Expected to vest at June 30, 2019 |
|
|
957,248 |
| Vested at June 30, 2019 |
|
|
957,248 |
| Unvested at June 30, 2019 |
|
|
- |
| Unrecognized expense at June 30, 2019 |
|
$ |
- |
|
| Restricted Stock Units (RSUs) [Member] |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Stock-Based Compensation Expense |
The impact on our results of operations of
recording stock-based compensation expense for restricted stock units for the three and six months ended June 30, 2019 and 2018
was as follows:
| |
|
Three Months Ended |
|
Six Months Ended |
| |
|
June 30, |
|
June 30, |
| |
|
2019 |
|
2018 |
|
2019 |
|
2018 |
| General and administrative |
|
$ |
- |
|
$ |
8,702 |
|
$ |
65,002 |
|
$ |
30,546 |
| |
|
$ |
- |
|
$ |
8,702 |
|
$ |
65,002 |
|
$ |
30,546 |
|