Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Details Textual)

v3.20.2
Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 27, 2020
Jun. 29, 2019
Jun. 27, 2020
Jun. 29, 2019
Goodwill And Intangible Assets Disclosure [Abstract]        
Impairment charge     $ 31,871  
Amortization expense $ 4,417 $ 4,545 $ 8,765 $ 9,066