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Indebtedness (Narrative) (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Oct. 24, 2016
USD ($)
Jan. 01, 2016
Mar. 31, 2017
USD ($)
Apr. 01, 2016
USD ($)
Debt Instrument [Line Items]        
Interest Paid     $ 386 $ 402
Foriegn Subsidiaries [Member]        
Debt Instrument [Line Items]        
Maximum Borrowing Capacity     $ 0 0
Revolvers [Member]        
Debt Instrument [Line Items]        
Annual Seasonal Pay Down Duration     June 30th through October 31st of each year under the agreement  
Initiation Date     Sep. 16, 2013  
Expiration Date     Sep. 16, 2018  
Line Of Credit Facility, Maximum Borrowing Capacity For Asset Or Stock Acquisitions     $ 20,000  
Ratio of Indebtedness to Net Capital     2.5  
Maximum Amount of Dividends Paid or Repurchases of Common Stock     $ 10,000  
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 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 which margin resets each quarter. The applicable margin ranges from 1.25% to 2.00% and is dependent on the Company's leverage ratio for the trailing twelve month period  
Margin range   1.70% 2.20%  
Revolvers [Member] | Maximum [Member]        
Debt Instrument [Line Items]        
Margin range     2.00%  
Revolvers [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Margin range     1.25%  
Revolvers Borrowing Capacity Seasonal [Member]        
Debt Instrument [Line Items]        
Maximum Borrowing Capacity     $ 60,000  
Revolvers Borrowing Capacity Standard [Member]        
Debt Instrument [Line Items]        
Maximum Borrowing Capacity     $ 90,000  
Term Loans [Member]        
Debt Instrument [Line Items]        
Repayment Of Term Loans $ 7,068      
Pre-payment Penalty, Percentage 3.00%      
Debt maturity date     Sep. 29, 2029  
Interest Rate in Effect 5.50%      
Financial Standby Letter of Credit [Member]        
Debt Instrument [Line Items]        
Letters of Credit Outstanding     $ 392 $ 680