Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Note L - Segment Information - Schedule of Revenue Percentage By Product (Details) - Product Concentration Risk [Member] - Revenue Benchmark [Member]
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
USANA Nutritionals [Member]      
Percentage of product revenue 85.00% 83.00% 82.00%
USANA Foods [Member]      
Percentage of product revenue 7.00% 8.00% 9.00%
Personal Care and Skincare [Member]      
Percentage of product revenue [1] 7.00% 8.00% 8.00%
All Other [Member]      
Percentage of product revenue 1.00% 1.00% 1.00%
[1] The Company launched Celavive in every market except China in the first quarter of 2018 and launched in China late in the third quarter of 2018.