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Note 8 - 2014 Restructuring Charge (Details) - Restructuring Activities (Restructuring Charge 2014 [Member], USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 28, 2014
Sep. 28, 2014
Restructuring Cost and Reserve [Line Items]    
Total Restructuring Charge $ 12,400  
Employee Severance [Member]
    
Restructuring Cost and Reserve [Line Items]    
Total Restructuring Charge 9,700 9,669
Costs Incurred in 2014   108
Balance at Sept. 28, 2014 9,561 9,561
Fixed Asset Impairment [Member]
    
Restructuring Cost and Reserve [Line Items]    
Total Restructuring Charge 2,600 2,584
Costs Incurred in 2014   2,584
Balance at Sept. 28, 2014 0 0
Other Restructuring [Member]
    
Restructuring Cost and Reserve [Line Items]    
Total Restructuring Charge 100 133
Costs Incurred in 2014   0
Balance at Sept. 28, 2014 $ 133 $ 133