INFORMATION CONCERNING PRODUCT LINES, GEOGRAPHIC INFORMATION, ACCOUNTS RECEIVABLE AND REVENUE CONCENTRATION - Schedule of Revenue by Shipment Destination (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 11,421	$ 18,956	$ 27,845
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	7,131	12,650	20,157
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	1,386	1,859	3,371
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	2,904	4,447	$ 4,317
South Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 3,600	$ 8,300
Revenue percentage	31.00%	44.00%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,800	$ 4,300
Revenue percentage	25.00%	22.00%