| Schedule of quarterly financial data |
| |
|
Sales |
|
|
Gross Loss |
|
|
Net Loss |
|
|
Basic and diluted loss per share |
|
| 2018 |
|
|
|
|
|
|
|
|
|
|
|
|
| First Quarter |
|
$ |
560,229 |
|
|
$ |
(1,154,141 |
) |
|
$ |
(6,417,806 |
) |
|
$ |
(0.16 |
) |
| Second Quarter |
|
|
170,684 |
|
|
|
(1,485,221 |
) |
|
|
(6,909,297 |
) |
|
|
(0.18 |
) |
| Third Quarter |
|
|
10,997 |
|
|
|
(1,465,825 |
) |
|
|
(5,485,553 |
) |
|
|
(0.12 |
) |
| Fourth Quarter |
|
|
21,263 |
|
|
|
(11,085,205 |
) |
|
|
(17,689,660 |
) |
|
|
(0.28 |
) |
| 2017 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| First Quarter |
|
|
1,570,037 |
|
|
|
(2,742,051 |
) |
|
|
(7,920,606 |
) |
|
|
(0.24 |
) |
| Second Quarter |
|
|
252,000 |
|
|
|
(743,925 |
) |
|
|
(9,178,700 |
) |
|
|
(0.26 |
) |
| Third Quarter |
|
|
3,066,000 |
|
|
|
(4,492,082 |
) |
|
|
(12,412,088 |
) |
|
|
(0.35 |
) |
| Fourth Quarter |
|
|
5,150,423 |
|
|
|
(6,500,345 |
) |
|
|
(11,705,394 |
) |
|
|
(0.32 |
) |
|