Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details Textual)

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Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]      
Amortization expense $ 18,065 $ 23,262 $ 8,423
Loss on disposal of intangible asset $ 2,713