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Basis of Presentation and General Information (Components of Other Intangible Assets, Included In Other Assets) (Details) - USD ($)
$ in Thousands
Dec. 28, 2018
Dec. 29, 2017
Finite Lived Intangible Assets Net [Abstract]    
Gross carrying amount $ 27,269 $ 27,147
Accumulated amortization (24,238) (21,869)
Foreign currency translation adjustment 59 245
Intangible Assets, net $ 3,090 $ 5,523