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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2015
Summary of Significant Accounting Policies [Abstract]  
Numerators And Denominators In The Calculation Of Basic And Diluted Net Loss Per Share

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years ended December 31,

 

2015

 

2014

 

2013

Numerator:

 

 

 

 

 

 

 

 

Net income (loss)

$

(14,145)

 

$

(12,386)

 

$

31,544 

Denominator:

 

 

 

 

 

 

 

 

Weighted-average shares used to compute Net income (loss) per share - Basic

 

45,756 

 

 

45,269 

 

 

45,007 

Effect of dilutive securities - Dilution from employee stock plans

 

 —

 

 

 —

 

 

201 

Weighted-average shares used to compute Net income (loss) per share - Diluted

 

45,756 

 

 

45,269 

 

 —

45,208 

Net income (loss) per share - Basic

$

(0.31)

 

$

(0.27)

 

$

0.70 

Net income (loss) per share - Diluted

$

(0.31)

 

$

(0.27)

 

$

0.70