Note 11 - Derivative Financial Instruments (Details) - Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Sep. 28, 2014
Sep. 29, 2013
Foreign Exchange Forward Contracts        
Net gain reclassified from accumulated OCI into income (ineffective portion) (2) $ 0 [1]    [1] $ 0 [1] $ (2,415) [1]
Foreign Currency Forward Contracts [Member] | Cost of Sales [Member] | Designated as Hedging Instrument [Member]
       
Foreign Exchange Forward Contracts        
Net loss reclassified from accumulated OCI 2,449   2,449  
Foreign Currency Forward Contracts [Member] | Selling, General and Administrative Expenses [Member] | Designated as Hedging Instrument [Member]
       
Foreign Exchange Forward Contracts        
Net loss reclassified from accumulated OCI 129   129  
Foreign Currency Forward Contracts [Member] | Research and Development Expense [Member] | Designated as Hedging Instrument [Member]
       
Foreign Exchange Forward Contracts        
Net loss reclassified from accumulated OCI 237   237  
Foreign Currency Forward Contracts [Member] | Designated as Hedging Instrument [Member]
       
Foreign Exchange Forward Contracts        
Net unrealized gain (loss) recognized in OCI (1) 2,716 [2] (391) [2] (4,174) [2] 13,669 [2]
Net loss (gain) reclassified from accumulated OCI into net sales (effective portion) 528 (3,113) 3,511 (7,701)
Foreign Currency Forward Contracts [Member] | Not Designated as Hedging Instrument [Member]
       
Net gain (loss) recognized in income        
Net gain (loss) recognized in income 3,685 [1] (1,053) [1] 5,679 [1] (813) [1]
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
       
Net gain (loss) recognized in income        
Net gain (loss) recognized in income 0 [3]    [3] 0 [3] (8) [3]
Foreign Exchange Option [Member] | Not Designated as Hedging Instrument [Member]
       
Net gain (loss) recognized in income        
Net gain (loss) recognized in income    [1] $ (197) [1]    [1]    [1]
[1] Classified in interest income and other, net
[2] Net change in the fair value of the effective portion classified in other comprehensive income (OCI)
[3] Classified in interest expense