Note 13 - Stock-based Compensation - Schedule of Stock Based Compensation Award Activity (Details) - shares	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Balance (in shares)	121	186	229
Options granted (in shares)	0	0	0
Balance (in shares)	93	121	186
Stock Plan 2019 [Member]
Balance (in shares)	320,000	272,000
Options authorized (in shares)	600,000	550,000
Options granted (in shares)	0	0
Options forfeited or expired (in shares)	31,000	65,000
RSUs granted (in shares)	(619,000)	(816,000)
RSUs forfeited (in shares)	262,000	249,000
Balance (in shares)	594,000	320,000	272,000