Significant Accounting Policies (Details)	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Significant Accounting Policies
Length of fiscal year	364 days	371 days	364 days
Minimum
Significant Accounting Policies
Length of fiscal year	364 days
Maximum
Significant Accounting Policies
Length of fiscal year	371 days