| Schedule of quarterly financial data |
| |
|
First |
|
Second |
|
Third |
|
Fourth |
|
Total |
| 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 |
) |
| |
|
First |
|
Second |
|
Third |
|
Fourth |
|
Total |
| 2014 |
|
|
|
|
|
|
|
|
|
|
| Total
revenue |
|
$ |
|
|
|
$ |
|
|
|
$ |
|
|
|
$ |
|
|
|
$ |
|
|
| Operating
loss |
|
|
(2,021,493 |
) |
|
|
(1,968,383 |
) |
|
|
(2,056,416 |
) |
|
|
(3,076,632 |
) |
|
|
(9,122,924 |
) |
| Net
loss |
|
|
(2,021,925 |
) |
|
|
(1,968,251 |
) |
|
|
(2,052,089 |
) |
|
|
(3,088,399 |
) |
|
|
(9,130,664 |
) |
| Net
loss per basic and diluted share |
|
$ |
(0.10 |
) |
|
$ |
(0.10 |
) |
|
$ |
(0.09 |
) |
|
$ |
(0.13 |
) |
|
$ |
(0.41 |
) |
|