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Segment Information (Revenue by Major Customer) (Details) - Revenue, net
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
All distributors        
Revenue, Major Customer        
Percentage of revenue 48.00% 60.00% 46.00% 66.00%
Distributor A        
Revenue, Major Customer        
Percentage of revenue 32.00% 27.00% 29.00% 31.00%
Distributor B        
Revenue, Major Customer        
Percentage of revenue 1.00% 13.00% 1.00% 9.00%
Top five end customers        
Revenue, Major Customer        
Percentage of revenue [1] 85.00% 74.00% 83.00% 56.00%
End customer A        
Revenue, Major Customer        
Percentage of revenue [1] 48.00% 32.00% 49.00% 16.00%
End customer B        
Revenue, Major Customer        
Percentage of revenue [1] 13.00% 9.00% 11.00% 13.00%
End customer C        
Revenue, Major Customer        
Percentage of revenue [1] 9.00% 13.00% 9.00% 12.00%
End customer D        
Revenue, Major Customer        
Percentage of revenue [1] 0.00% 12.00% 0.00% 8.00%
[1] End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors.