Nature of Operations and Summary of Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Jan. 02, 2021	Mar. 28, 2020	Dec. 28, 2019
Accounting Policies [Abstract]
Cash and cash equivalents	$ 65,982	$ 65,682	$ 60,012	$ 66,786
Restricted cash	726	958	2,063	1,487
Total Cash, Cash Equivalents, and Restricted Cash	$ 66,708	$ 66,640	$ 62,075	$ 68,273

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Name:	us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant