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Note 9 - Long-Term Debt (Details Textual)
3 Months Ended 9 Months Ended
Jun. 27, 2015
USD ($)
Jun. 28, 2014
USD ($)
Jun. 27, 2015
USD ($)
Jun. 28, 2014
USD ($)
Sep. 27, 2014
USD ($)
Feb. 06, 2012
USD ($)
Revolving Credit Facility [Member] | Federal Funds Effective Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate     0.50%      
Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate     0.25%      
Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate     0.75%      
Revolving Credit Facility [Member] | Base Rate [Member]            
Line of Credit Facility, Interest Rate at Period End 0.25%   0.25%      
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate     1.25%      
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate     1.75%      
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Line of Credit Facility, Interest Rate at Period End 1.25%   1.25%      
Revolving Credit Facility [Member]            
Long-term Line of Credit $ 0   $ 0      
Line of Credit Facility, Maximum Borrowing Capacity           $ 100,000,000
Line of Credit Facility, Current Borrowing Capacity 100,000,000   100,000,000      
Line of Credit Facility, Remaining Borrowing Capacity 85,700,000   $ 85,700,000      
Debt Instrument, Interest Rate, Increase (Decrease)     2.00%      
Fixed Charge Coverage Ratio     1.1      
Credit Facility Liquidity Amount     $ 12,500,000      
Amortization of Financing Costs 21,000 $ 26,000 $ 72,000 $ 77,000    
Debt Instrument, Covenant Description     The Company is required to maintain a fixed charge coverage ratio of not less than 1.10 at the end of each fiscal quarter for the twelve month period then ended when the amount of liquidity on the Credit Facility is less than $12.5 million.      
Letters of Credit Outstanding, Amount 1,600,000   $ 1,600,000      
Amortization of Financing Costs     72,000 $ 77,000    
Accumulated Amortization, Deferred Finance Costs $ 4,500,000   $ 4,500,000   $ 4,400,000