| Schedule of basic and diluted net income (loss) per share |
|
|
Three months ended June 30,
|
|
|
Six months ended June 30, |
|
|
|
2015 |
|
|
2014 |
|
|
2015 |
|
|
2014 |
|
| Numerator: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Net income (loss) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Basic |
|
$ |
(5,645 |
) |
|
$ |
56,128 |
|
|
$ |
(9,760 |
) |
|
$ |
(25,638 |
) |
| Adjustment for change in fair value of warrant liability |
|
|
- |
|
|
|
(60,458 |
) |
|
|
- |
|
|
|
- |
|
| Diluted |
|
$ |
(5,645 |
) |
|
$ |
(4,330 |
) |
|
$ |
(9,760 |
) |
|
$ |
(25,638 |
) |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Denominator: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted-average common shares outstanding used in computing basic and diluted net income (loss) per share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Basic |
|
|
102,094,158 |
|
|
|
78,497,558 |
|
|
|
101,944,359 |
|
|
|
72,688,073 |
|
| Dilutive effect of warrants |
|
|
- |
|
|
|
9,593,643 |
|
|
|
- |
|
|
|
- |
|
| Dilutive effect of stock options |
|
|
- |
|
|
|
6,681,210 |
|
|
|
- |
|
|
|
- |
|
| Diluted |
|
|
102,094,158 |
|
|
|
94,772,411 |
|
|
|
101,944,359 |
|
|
|
72,688,073 |
|
| Net income (loss) per share, basic |
|
|
(0.06 |
) |
|
|
0.72 |
|
|
|
(0.10 |
) |
|
|
(0.35 |
) |
| Net loss per share, diluted |
|
|
(0.06 |
) |
|
|
(0.05 |
) |
|
|
(0.10 |
) |
|
|
(0.35 |
) |
|
| Schedule of Antidilutive Securities |
|
|
Three months ended June 30,
|
|
|
Six months ended June 30, |
|
|
|
2015 |
|
|
2014 |
|
|
2015 |
|
|
2014 |
|
| Options to purchase common stock |
|
|
13,227,092 |
|
|
|
- |
|
|
|
13,227,092 |
|
|
|
7,073,652 |
|
| Warrants to purchase common stock |
|
|
13,747,161 |
|
|
|
- |
|
|
|
13,747,161 |
|
|
|
14,546,085 |
|
| Total common stock equivalents |
|
|
26,974,253 |
|
|
|
- |
|
|
|
26,974,253 |
|
|
|
21,619,737 |
|
|