Segment Information (Tables)

3 Months Ended

Mar. 29, 2014

Segment Information [Abstract]

Schedule Of Revenue Percentage By Product

	Three Months Ended
	March 30,	March 29,
	2013	2014
USANA® Nutritionals	80%	79%
USANA Foods	12%	13%
Sensé – beautiful science®	6%	6%

Schedule Of Revenues From External Customers By Geographical Areas

	Three Months Ended
	March 30,	March 29,
	2013	2014
Net Sales to External Customers
Americas and Europe	$             64,152	$             63,815
Asia Pacific
Southeast Asia Pacific	35,309	40,448
Greater China	62,985	70,847
North Asia	6,636	7,291
Asia Pacific Total	104,930	118,586
Consolidated Total	$           169,082	$           182,401

Consolidated Net Sales And Long Lived Assets

	Three Months Ended
	March 30,	March 29,
	2013	2014
Net sales:
United States	$             40,238	$             37,613
China	N/A	38,760
Hong Kong	41,597	23,524
	As of
	December 28,	March 29,
	2013	2014
Long-lived Assets:
China	$             61,716	$             66,587
United States	51,260	51,652