| Earnings Per Share [Text Block] |
10. Earnings Per Share
The following shows the computation of basic and diluted earnings per share:
|
|
|
Year Ended December 31,
|
|
|
|
|
2014
|
|
|
2013
|
|
|
2012
|
|
|
Numerator
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss
|
|
$
|
(22,608
|
)
|
|
$
|
(13,178
|
)
|
|
$
|
(20,691
|
)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Denominator
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Weighted average common stock
|
|
|
32,707,868
|
|
|
|
29,495,856
|
|
|
|
28,391,528
|
|
|
Less weighted average unvested common stock subject to repurchase and unvested restricted stock award
|
|
|
—
|
|
|
|
(2,851
|
)
|
|
|
(12,848
|
)
|
|
Weighted average common stock—basic and diluted
|
|
|
32,707,868
|
|
|
|
29,493,005
|
|
|
|
28,378,680
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Earnings per share
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Basic
|
|
$
|
(0.69
|
)
|
|
$
|
(0.45
|
)
|
|
$
|
(0.73
|
)
|
|
Diluted
|
|
$
|
(0.69
|
)
|
|
$
|
(0.45
|
)
|
|
$
|
(0.73
|
)
|
The following securities were not included in the computation of diluted earnings per share as inclusion would have been anti-dilutive:
|
|
|
Year Ended December 31,
|
|
|
|
|
2014
|
|
|
2013
|
|
|
2012
|
|
|
Common stock options
|
|
|
3,350,112
|
|
|
|
4,373,642
|
|
|
|
4,797,873
|
|
|
Warrant to purchase redeemable convertible preferred stock
|
|
|
—
|
|
|
|
1,696
|
|
|
|
2,142
|
|
|
Unvested restricted stock award and restricted stock unit
|
|
|
3,705,415
|
|
|
|
3,030,202
|
|
|
|
1,608,464
|
|
|
|
|
|
7,055,527
|
|
|
|
7,405,540
|
|
|
|
6,408,479
|
|
|