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Note 5 - Restructuring Charges - Charges Related to the Wind Down Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Restructuring charges, total	$ 18,704
Restructuring Charges, Total	18,704
Integration Program [Member]
Restructuring charges, total	37,757
Restructuring Charges, Total	37,757
Employee Severance [Member] \| Integration Program [Member]
Restructuring charges, total	17,791
Accrued restructuring, beginning balance
Restructuring Charges, Total	17,791
Amounts paid or charged	(13,750)
Impact of currency exchange	(15)
Accrued restructuring, ending balance	4,026
Inventory Charges [Member] \| Integration Program [Member]
Restructuring charges, total	19,053
Restructuring Charges, Total	19,053
Other Restructuring [Member] \| Integration Program [Member]
Restructuring charges, total	913
Restructuring Charges, Total	$ 913