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Share-based Compensation (Tables)
 6 Months Ended
Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based Compensation
The Company included the following amounts for share-based compensation awards in the unaudited condensed consolidated statements of operations (in thousands):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
  
2015
 
2014
 
2015
 
2014
Cost of revenues (1)
$
37

 
$
11

 
$
58

 
$
(19
)
Research and development
187

 
210

 
402

 
257

Sales and marketing
143

 
143

 
183

 
222

General and administrative
816

 
398

 
1,330

 
779

Total
$
1,183

 
$
762

 
$
1,973

 
$
1,239

(1)
Negative expense resulted from a change in the estimated forfeiture rates during the first quarter of 2014.