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Note 9 - Long-Term Debt (Details Textual)
3 Months Ended
Jan. 02, 2016
USD ($)
Dec. 27, 2014
USD ($)
Oct. 03, 2015
USD ($)
Feb. 06, 2012
USD ($)
Revolving Credit Facility [Member] | Letter of Credit [Member]        
Long-term Line of Credit $ 1,600,000      
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%      
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%      
Revolving Credit Facility [Member]        
Long-term Line of Credit $ 0      
Line of Credit Facility, Maximum Borrowing Capacity       $ 100,000,000
Line of Credit Facility, Current Borrowing Capacity 100,000,000      
Line of Credit Facility, Remaining Borrowing Capacity $ 75,200,000      
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 16,000 $ 26,000    
Amortization of Financing Costs $ 16,000 $ 26,000    
Accumulated Amortization, Deferred Finance Costs     $ 4,500,000