Supplemental Disclosure of Cash Flow Information - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2021	Jan. 03, 2020	Dec. 28, 2018
Non-cash investing and financing activities:
ROU assets obtained in exchange for new finance lease liabilities	$ 22	$ 679	$ 1,656
Purchase of property and equipment included in accounts payable	523	381	207
Cash paid:
Interest	64	105	130
Taxes	$ 1,336	$ 792	$ 635