Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2017		Jul. 02, 2016
Statement of Cash Flows [Abstract]
Cash provided by (used in) operating activities, net	$ 200		$ (368)
Cash (used in) provided by financing activities, net	(3)		498
Net increase in cash and cash equivalents	197		130
Cash and cash equivalents at beginning of period	132	[1]	55
Cash and cash equivalents at end of period	329		185
Supplemental cash flow information:
Income taxes paid	5		6
Interest paid	$ 12		$ 6

[1] Derived from audited financial information