Segment Reporting (Details 1) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Americas:
Total Americas	$ 200,500	$ 199,355	$ 194,507
Total long-lived assets	252,630	251,342	238,607
United States
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	200,025	198,744	193,750
Other Americas [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	475	611	757
Asia [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	39,629	37,678	30,564
Europe, Middle East and Africa [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	11,784	13,615	12,692
Japan [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	$ 717	$ 694	$ 844