Quarterly report pursuant to Section 13 or 15(d)

Note K - Segment Information - Schedule of Revenue Percentage By Product (Details)

v3.21.2
Note K - Segment Information - Schedule of Revenue Percentage By Product (Details) - Product Concentration Risk [Member] - Revenue Benchmark [Member]
3 Months Ended 9 Months Ended
Oct. 02, 2021
Sep. 26, 2020
Oct. 02, 2021
Sep. 26, 2020
USANA Nutritionals [Member]        
Percentage of product revenue 85.00% 85.00% 86.00% 83.00%
USANA Foods [Member]        
Percentage of product revenue [1] 8.00% 9.00% 8.00% 11.00%
Personal Care and Skincare [Member]        
Percentage of product revenue 6.00% 5.00% 5.00% 5.00%
All Other [Member]        
Percentage of product revenue 1.00% 1.00% 1.00% 1.00%
[1] Includes the Company's new Active Nutrition line, which launched in five markets late in the first quarter of 2021 and will roll out to additional markets throughout the year.