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Goodwill and Other Intangibles (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]          
Goodwill $ 3,389   $ 3,389   $ 3,389
Finite-Lived Intangible Assets, Net 2,232   2,232   $ 2,461
Amortization of intangibles $ 76 $ 76 $ 229 $ 229