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Indebtedness (Narrative) (Details)
$ in Thousands
 12 Months Ended
Nov. 27, 2016
shares
Sep. 30, 2016
USD ($)
Oct. 02, 2015
USD ($)
Oct. 03, 2014
USD ($)
Line of Credit Facility [Line Items]        
Weighted Average Borrowing Rate for Short-Term Debt   1.70% 1.40% 1.40%
Interest Paid   $ 732 $ 754 $ 672
Subsequent Event [Member]        
Line of Credit Facility [Line Items]        
Voting power of shares closely held, percent 77.00%      
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]        
Line of Credit Facility [Line Items]        
Margin range   1.25%    
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]        
Line of Credit Facility [Line Items]        
Margin range   2.00%    
Class A [Member] | Subsequent Event [Member]        
Line of Credit Facility [Line Items]        
Number of closely held shares | shares 3,870,185      
Outstanding shares closely held, percent 44.00%      
Class B [Member] | Subsequent Event [Member]        
Line of Credit Facility [Line Items]        
Number of closely held shares | shares 1,211,196      
Outstanding shares closely held, percent 99.90%      
Revolving Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Annual Seasonal Pay Down Duration   June 30th through October 31st of each year under the agreement    
Long-term Line of Credit   $ 0 $ 0  
Initiation Date   Sep. 16, 2013    
Expiration Date   Sep. 16, 2018    
Interest Rate at Period End   1.70% 1.40%  
Line of Credit Facility, Dividend Restrictions   The Revolving Credit Agreement limits the amount of restricted payments (primarily dividends and repurchases of common stock) made during each fiscal year. The Company may declare, and pay, dividends in accordance with historical practices, but in no event may the aggregate amount of all dividends or repurchases of common stock exceed $10,000 in any fiscal year    
Line of Credit Facility, Asset Restrictions   Under the terms of the Revolver, the Company is required to comply with certain financial and non-financial covenants. The Revolving Credit Agreement limits asset or stock acquisitions to no more than $20,000 in the event that the Company's consolidated leverage ratio is greater than 2.5 times. No limits are imposed if the Company's consolidated leverage ratio is less than 2.5 times and the remaining borrowing availability under the Revolver is greater than $10,000 at the time of the acquisition    
Line of Credit Facility, Covenant Terms   The Revolving Credit Agreement restricts the Company's ability to incur additional debt and includes maximum leverage ratio and minimum interest coverage ratio covenants    
Line of Credit Facility, Collateral   The Revolver is secured with a first priority lien on working capital assets and certain patents and trademarks of the Company and its subsidiaries and a second priority lien on land, buildings, machinery and equipment of the Company's domestic subsidiaries    
Line of Credit Facility, Interest Rate Description   The interest rate on the Revolver is based on LIBOR plus an applicable margin. The applicable margin resets each quarter and ranges from 1.25% to 2.00% and is dependent on the Company's leverage ratio for the trailing twelve month period    
Line Of Credit Facility, Maximum Borrowing Capacity For Asset Or Stock Acquisitions   $ 20,000    
Line Of Credit Facility, Leverage Ratio   2.5    
Line Of Credit Facility, Minimum Borrowing Availability At Time of Asset Or Stock Acquisition   $ 10,000    
Maximum Aggregate Amount Of All Dividends Or Repurchases Of Common Stock During Any Fiscal Year   10,000    
Revolving Credit Facility [Member] | Revolvers Borrowing Capacity Standard [Member]        
Line of Credit Facility [Line Items]        
Maximum Borrowing Capacity   90,000    
Revolving Credit Facility [Member] | Revolvers Borrowing Capacity Seasonal [Member]        
Line of Credit Facility [Line Items]        
Maximum Borrowing Capacity   60,000    
Unsecured Revolving Credit Facilities At Foreign Subsidiaries [Member]        
Line of Credit Facility [Line Items]        
Long-term Line of Credit   0    
Unsecured Line Of Credit [Member]        
Line of Credit Facility [Line Items]        
Long-term Line of Credit   $ 0 $ 0  
Term Loans [Member]        
Line of Credit Facility [Line Items]        
Debt maturity date   Sep. 29, 2029    
Interest Rate in Effect   5.50% 5.25%  
Pre Payment Penalty Percent   3.00%    
Annual Decrease Of Pre Payment Penalty   1.00%    
Financial Standby Letter of Credit [Member]        
Line of Credit Facility [Line Items]        
Letters of Credit Outstanding   $ 392 $ 684