XML 47 R36.htm IDEA: XBRL DOCUMENT v3.22.1
Note J - Segment Information - Schedule of Revenue Percentage By Product (Details) - Product Concentration Risk [Member] - Revenue Benchmark [Member]
3 Months Ended
Apr. 02, 2022
Apr. 03, 2021
USANA Nutritionals [Member]    
Percentage of product revenue 87.00% 87.00%
USANA Foods [Member]    
Percentage of product revenue [1] 7.00% 7.00%
Personal Care and Skincare [Member]    
Percentage of product revenue 5.00% 5.00%
All Other [Member]    
Percentage of product revenue 1.00% 1.00%
[1] Includes the Company's new Active Nutrition line, which launched in five markets in 2021 and will roll out to additional markets in future periods.