Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Statement of Cash Flows [Abstract]
Cash flows provided by (used in) operating activities, net	$ 84	$ (460)
Cash flows (used in) provided by financing, net	(1)	499
Net increase in cash and cash equivalents	83	39
Cash and cash equivalents at beginning of period	132	55
Cash and cash equivalents at end of period	215	94
Supplemental cash flow information:
Income taxes paid	5	5
Interest expenses paid	$ 6