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Note 5 - Inventories - Summary of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Jan. 01, 2017
Finished goods $ 115,512 $ 104,742
Work-in-process 13,022 8,711
Raw materials 49,401 42,630
Inventory, Net $ 177,935 $ 156,083