Sales by Geographic Region and Product Category - Schedule of Revenues by Geographical Region (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geography	$ 3,742	$ 3,143
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geography	3,331	3,368
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geography	117	286
Asia Pacific And Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geography	155	108
Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues by geography	$ 139	$ 95