Segment Information - Schedule of Revenue Percentage By Product (Details) - Product Concentration Risk - Revenue Benchmark	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
USANA® Nutritionals
Segment Information [Line Items]
Concentration risk, percentage	86.00%	85.00%	86.00%	86.00%
USANA Foods(1)
Segment Information [Line Items]
Concentration risk, percentage	7.00%	8.00%	7.00%	8.00%
Personal care and Skincare
Segment Information [Line Items]
Concentration risk, percentage	6.00%	6.00%	6.00%	5.00%
All Other
Segment Information [Line Items]
Concentration risk, percentage	1.00%	1.00%	1.00%	1.00%