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Stockholders' Equity And Employee Stock Option Plans (Tables)
 9 Months Ended
Sep. 30, 2017
Stockholders' Equity and Employee Stock Option Plans [Abstract]  
Stock-based Compensation Expense
Stock-based Compensation Expense

The following table summarizes stock-based compensation expense for the three and nine months ended September 30, 2017 and 2016 and its allocation within the condensed consolidated statements of operations (in thousands):

 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2017
 
2016
 
2017
 
2016
 
 
 
 
 
 
 
 
Cost of revenues
$
44

 
$
13

 
$
118

 
$
(4
)
Product development
117

 
3

 
360

 
43

Sales and marketing
(106
)
 
49

 
23

 
(29
)
General and administrative
182

 
49

 
645

 
280

Total
$
237

 
$
114

 
$
1,146

 
$
290