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Nature of Operations and Summary of Significant Accounting Policies - Inventories (Details) - USD ($)
$ in Thousands
Apr. 02, 2016
Jan. 02, 2016
Accounting Policies [Abstract]    
Raw Materials and Supplies $ 22,415 $ 22,324
Work in Process 11,769 13,819
Finished Goods 24,497 20,615
Inventories $ 58,681 $ 56,758