Segment Reporting (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Americas:
Total Americas	$ 194,507	$ 190,052	$ 201,338
Total long-lived assets	238,607	228,599	230,112
United States
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	193,750	189,665	200,760
Other Americas [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	757	387	578
Asia [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	30,564	24,767	22,145
Europe, Middle East and Africa [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	12,692	12,832	5,951
Japan [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	$ 844	$ 948	$ 678