Annual report pursuant to Section 13 and 15(d)

Summary Of Significant Accounting Policies (Narrative) (Details)

v3.3.1.900
Summary Of Significant Accounting Policies (Narrative) (Details)
 12 Months Ended
Jan. 02, 2016
USD ($)
item
Jan. 03, 2015
USD ($)
Dec. 28, 2013
USD ($)
Summary Of Significant Accounting Policies [Line Items]      
Geographical regions | item 2    
Sub-geographical regions | item 3    
Transfers of financial assets or liabilities $ 0 $ 0  
Non-financial assets 0 0 $ 0
Receivable from credit card processors 12,516,000 6,209,000  
Restricted cash $ 3,080,000 3,222,000  
Maturity date Feb. 01, 2024    
Credits on notes receivable $ 966,000 720,000 198,000
Notes receivable 8,339,000 8,519,000  
Goodwill impairment 0 0 0
Impairment of indefinite-lived intangible assets 0 0 0
Amount of individual claims before reimbursement $ 125,000    
Minimum percentage of projected aggregate claims before insurance reimbursement 100.00%    
Self insurance program expense $ 7,287,000 7,019,000 5,281,000
Proceeds from Stock Options Exercised 0 10,970,000 454,000
Tax benefit from equity award activity 12,024,000 14,712,000 7,075,000
Amount available to repurchase under the stock repurchase plan 100,000,000    
Repurchase of common stock $ 61,181,000 $ 138,819,000 $ 18,085,000
Account renewal fee period 12 months    
Duration of product return for first order 30 days    
Percentage of sale refunded 100.00%    
Duration of product return 1 year    
Amount of returned product which could result in cancellation of distributorship $ 100    
Product return percentage of net sales 0.60% 0.80% 0.90%
Advertising expense $ 13,766,000 $ 4,942,000 $ 3,650,000
Research and development expense 6,420,000 5,128,000 $ 5,083,000
Manufacturing Credits [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Credits on notes receivable $ 966,000 $ 720,000  
LIBOR [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Basis point 4.00%