Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Details Textual)

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Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Apr. 01, 2017
Apr. 02, 2016
Goodwill And Intangible Assets Disclosure [Abstract]    
Amortization expense of intangible assets $ 2,310 $ 187
Amortization expense for the remainder of 2017 $ 6,112