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Discontinued Operations (Tables)
12 Months Ended
Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]  
Summary of the components of loss from discontinued operations
The following is a summary of the components of loss from discontinued operations, (in thousands):
 
Year Ended December 31,
 
2012
 
2013
 
2014
Net revenue
$
360

 
$
50

 
$

Cost of goods sold
2,501

 
142

 

Gross profit
(2,141
)
 
(92
)
 

Operating expenses:
 
 
 
 
 
     Research and development
741

 

 

     Sales and marketing
56

 

 

     General and administrative
765

 
393

 

     Restructuring charge (recovery)
844

 
(10
)
 

          Total operating expenses
2,406

 
383

 

Operating loss
(4,547
)
 
(475
)
 

Other income (expense), net
(1
)
 
(1
)
 

Loss from discontinued operations
$
(4,548
)
 
$
(476
)
 
$