Organization and Description of Business and Accounting Policies - Schedule of Reconciliation of Cash And Cash Equivalents And Restricted Cash (Details) - USD ($) $ in Thousands		Jan. 03, 2020	Dec. 28, 2018	Dec. 29, 2017	Dec. 30, 2016
Accounting Policies [Abstract]
Cash and cash equivalents		$ 119,968	$ 103,877	$ 18,520
Restricted cash	[1]		122	121
Total cash, cash equivalents and restricted cash		$ 119,968	$ 103,999	$ 18,641	$ 14,118

[1] Included in other assets on the Consolidated Balance Sheets