| Schedule of Segment Reporting Information, by Segment | Summarized financial information for the Company’s reportable segments is shown in the following tables, including significant segment expenses that are regularly reviewed by the CODM. 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended March 29, 2025
 |  
|  | Direct selling |  | Hiya direct-to-consumer |  | Other |  | Total |  
| 
Net sales (1)
 | $ | 210,452 |  |  | $ | 37,089 |  |  | $ | 1,998 |  |  | $ | 249,539 |  |  
| Less: |  |  |  |  |  |  |  |  
| Cost of sales | 37,180 |  |  | 14,107 |  |  | 1,158 |  |  | 52,445 |  |  
| Associate incentives | 89,843 |  |  | — |  |  | 142 |  |  | 89,985 |  |  
| 
Selling, general and administrative (2)
 | 65,941 |  |  | 23,513 |  |  | 1,984 |  |  | 91,438 |  |  
| Segment earnings (loss) from operations | $ | 17,488 |  |  | $ | (531) |  |  | $ | (1,286) |  |  | $ | 15,671 |  |  
|  |  |  |  |  |  |  |  |  
| Reconciliation of segment earnings from operations |  |  |  |  |  |  |  |  
| Interest income |  |  |  |  |  |  | 723 |  |  
| Interest expense |  |  |  |  |  |  | (411) |  |  
| Other, net |  |  |  |  |  |  | 756 |  |  
| Earnings before income taxes |  |  |  |  |  |  | $ | 16,739 |  | ______________________________ 
(1)The direct selling segment excludes $764 of intersegment net sales.
 
(2)Includes amortization of acquired intangible assets of $306 and $4,455 for the Direct selling and Hiya segments, respectively.
 
NOTE K – SEGMENT INFORMATION - CONTINUED
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended March 30, 2024
 |  
|  | Direct selling |  | Other |  | Total |  
| 
Net sales (1)
 | $ | 226,148 |  |  | $ | 1,652 |  |  | $ | 227,800 |  |  
| Less: |  |  |  |  |  |  
| Cost of sales | 42,267 |  |  | 802 |  |  | 43,069 |  |  
| Associate incentives | 95,556 |  |  | 202 |  |  | 95,758 |  |  
| 
Selling, general and administrative (2)
 | 62,730 |  |  | 1,570 |  |  | 64,300 |  |  
| Segment earnings (loss) from operations | $ | 25,595 |  |  | $ | (922) |  |  | $ | 24,673 |  |  
|  |  |  |  |  |  |  
| Reconciliation of segment earnings from operations |  |  |  |  |  |  
| Interest income |  |  |  |  | 2,676 |  |  
| Interest expense |  |  |  |  | (52) |  |  
| Other, net |  |  |  |  | (186) |  |  
| Earnings before income taxes |  |  |  |  | $ | 27,111 |  |  ______________________________ 
(1)The direct selling segment excludes $420 of intersegment net sales.
 
(2)Includes amortization of acquired intangible assets of $306 for the Direct selling segment.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended |  
|  | March 29, 2025
 |  | March 30, 2024
 |  
| Depreciation and amortization: |  |  |  |  
| Direct selling | $ | 3,520 |  |  | $ | 2,799 |  |  
| Hiya direct-to-consumer | 4,483 |  |  | — |  |  
| Other | 336 |  |  | 359 |  |  
| Consolidated total | $ | 8,339 |  |  | $ | 3,158 |  |  | 
| Revenue from External Customers by Products and Services | The table below summarizes the approximate percentage of total product revenue for our direct selling and Hiya direct-to-consumer segments, and other category, that has been contributed by the Company’s nutritional supplements, food, and personal care and skincare products for the periods indicated. 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended |  |  |  
|  | March 29, 2025
 |  | March 30, 2024
 |  |  |  |  |  
| Direct selling: |  |  |  |  |  |  |  |  
| USANA® Nutritionals | 75 | % |  | 87 | % |  |  |  |  |  
| 
USANA Foods(1)
 | 5 | % |  | 6 | % |  |  |  |  |  
| Personal care and skincare | 4 | % |  | 6 | % |  |  |  |  |  
| Hiya direct-to-consumer: |  |  |  |  |  |  |  |  
| Hiya nutritional supplements | 15 | % |  | — | % |  |  |  |  |  
| Other | 1 | % |  | 1 | % |  |  |  |  | 
(1)Includes the Company’s Active Nutrition line.
 | 
| Schedule of Revenue by Geographic Region | Financial information, presented by geographic region is listed below: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended |  |  |  
|  | March 29, 2025
 |  | March 30, 2024
 |  |  |  |  |  
| Net sales to external customers: |  |  |  |  |  |  |  |  
| Asia Pacific |  |  |  |  |  |  |  |  
| Greater China | $ | 118,746 |  |  | $ | 127,615 |  |  |  |  |  |  
| Southeast Asia Pacific | 35,720 |  |  | 36,065 |  |  |  |  |  |  
| North Asia | 18,941 |  |  | 21,421 |  |  |  |  |  |  
| Asia Pacific total | 173,407 |  |  | 185,101 |  |  |  |  |  |  
| 
Americas and Europe (1)
 | 76,132 |  |  | 42,699 |  |  |  |  |  |  
| Consolidated total | $ | 249,539 |  |  | $ | 227,800 |  |  |  |  |  | 
(1)Includes results of the Hiya direct-to-consumer segment.
 | 
| Schedule of Markets Representing Ten Percent Or More of Consolidated Net Sales and Long-Lived Assets | The following table provides further information on markets representing ten percent or more of consolidated net sales and long-lived assets (excluding intangible assets), respectively: 
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|  | Three Months Ended |  |  |  
|  | March 29, 2025
 |  | March 30, 2024
 |  |  |  |  |  
| Net sales: |  |  |  |  |  |  |  |  
| China | $ | 107,690 |  |  | $ | 115,754 |  |  |  |  |  |  
| 
United States (1)
 | $ | 57,923 |  |  | $ | 22,164 |  |  |  |  |  |  
|  |  |  |  |  |  |  |  | 
(1)Includes results of the Hiya direct-to-consumer segment.
 
|  |  |  |  |  |  |  |  |  |  |  |  |  
|  | As of |  
|  | March 29, 2025
 |  | December 28, 2024
 |  
| Long-lived assets: |  |  |  |  
| United States | $ | 80,352 |  |  | $ | 81,459 |  |  
| China | $ | 29,567 |  |  | $ | 29,304 |  |  |