| Schedule of quarterly financial data |
| |
|
First |
|
|
Second |
|
|
Third |
|
|
Fourth |
|
|
Total |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2016 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Total revenue |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
| Operating loss |
|
|
(3,592,148 |
) |
|
|
(6,596,035 |
) |
|
|
(7,598,627 |
) |
|
|
(6,809,243 |
) |
|
|
(24,596,053 |
) |
| Net loss |
|
|
(6,145,462 |
) |
|
|
(5,284,859 |
) |
|
|
(7,699,741 |
) |
|
|
(6,636,136 |
) |
|
|
(25,766,198 |
) |
| Net loss per basic and diluted share |
|
$ |
(0.20 |
) |
|
$ |
(0.17 |
) |
|
$ |
(0.24 |
) |
|
$ |
(0.21 |
) |
|
$ |
(0.82 |
) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| BASIC AND DILUTED |
|
|
30,472,493 |
|
|
|
31,344,424 |
|
|
|
31,501,540 |
|
|
|
32,016,707 |
|
|
|
31,349,223 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2015 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Total revenue |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
| Operating loss |
|
|
(4,205,513 |
) |
|
|
(6,806,088 |
) |
|
|
(3,334,840 |
) |
|
|
(3,458,839 |
) |
|
|
(17,805,280 |
) |
| Net loss |
|
|
(4,540,957 |
) |
|
|
(3,400,548 |
) |
|
|
(3,345,997 |
) |
|
|
(3,910,363 |
) |
|
|
(15,197,865 |
) |
| Net loss per basic and diluted share |
|
$ |
(0.18 |
) |
|
$ |
(0.12 |
) |
|
$ |
(0.11 |
) |
|
$ |
(0.13 |
) |
|
$ |
(0.54 |
) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| BASIC AND DILUTED |
|
|
25,259,154 |
|
|
|
27,713,410 |
|
|
|
30,323,206 |
|
|
|
30,331,309 |
|
|
|
28,404,405 |
|
|