Segment Information (Tables)

6 Months Ended

Jun. 27, 2020

Segment Information [Abstract]

Schedule Of Revenue Percentage By Product

	Quarter Ended		Six Months Ended
	June 27,	June 29,	June 27,	June 29,
	2020	2019	2020	2019
USANA® Nutritionals	79%	83%	82%	84%
USANA Foods	12%	9%	10%	8%
Personal care and Skincare	8%	7%	7%	7%
All Other	1%	1%	1%	1%

Schedule Of Revenues From External Customers By Geographical Areas

	Quarter Ended				Six Months Ended
	June 27,		June 29,		June 27,		June 29,
	2020		2019		2020		2019
Net Sales to External Customers
Asia Pacific
Greater China	$	124,001	$	128,946	$	255,433	$	273,099
Southeast Asia Pacific		59,459		53,960		116,381		108,475
North Asia		25,852		22,575		53,103		44,803
Asia Pacific Total		209,312		205,481		424,917		426,377
Americas and Europe		49,679		50,535		100,693		102,629
Consolidated Total	$	258,991	$	256,016	$	525,610	$	529,006

Consolidated Net Sales And Long Lived Assets

	Quarter Ended				Six Months Ended
	June 27,		June 29,		June 27,		June 29,
	2020		2019		2020		2019
Net sales:
China	$	110,525	$	112,775	$	226,003	$	240,147
					As of
					June 27,		December 28,
					2020		2019
Long-lived assets:
China					$	87,845	$	90,886
United States					$	60,912	$	54,809