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Business segment information
 3 Months Ended
Mar. 28, 2014
Business segment information [Abstract]  
Business segment information
(13)Business segment information

Our segments' net sales and operating profit (loss) excluding severance, impairment and other associated costs, and legal reserve costs for the three months ended March 28, 2014 and March 29, 2013, were as follows (in thousands):

 
 
Three Months Ended
 
 
 
March 28, 2014
  
March 29, 2013
 
Net sales:
 
  
 
    Network
 
$
34,942
  
$
35,831
 
    Power
  
26,487
   
27,585
 
    Wireless
  
20,223
   
21,390
 
Total net sales
 
$
81,652
  
$
84,806
 
 
        
Operating profit (loss) excluding severance, impairment and other associated costs, and  legal reserve costs:
        
    Network
 
$
931
  
$
1,332
 
    Power
  
1,317
   
1,169
 
    Wireless
  
(2,644
)
  
(1,494
)
Operating profit (loss) excluding severance, impairment and other associated costs, and legal reserve costs
  
(396
)
  
1,007
 
 
        
Severance, impairment and other associated costs
  
961
   
19
 
Legal reserve
  
11
   
38
 
    Operating (loss) profit
  
(1,368
)
  
950
 
 
        
Interest expense, net
  
(7,118
)
  
(5,114
)
Other expense, net
  
(73
)
  
(2,532
)
 
        
Loss before income taxes
 
$
(8,559
)
 
$
(6,696
)