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Note 7 - Long-Term Debt (Detail) (USD $)
 0 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended
Dec. 12, 2011
Nov. 19, 2010
Sep. 29, 2012
Jun. 02, 2016
Sep. 29, 2012
Oct. 01, 2011
Oct. 02, 2010
Oct. 02, 2010
Feb. 06, 2012
Jun. 02, 2010
Line of Credit Facility, Maximum Borrowing Capacity                 $ 100,000,000 $ 75,000,000
Line of Credit Facility, Expiration Date       Jun. 02, 2016            
Line of Credit Facility, Current Borrowing Capacity     100,000,000   100,000,000          
Line of Credit Facility, Amount Outstanding     11,500,000   11,500,000 656,000        
Line of Credit Facility, Interest Rate Description     Interest rates on the Credit Facility are based upon (1) an index rate that is established at the highest of the prime rate, 0.50% plus the federal funds rate or the LIBOR rate plus the excess of the then-applicable margin for LIBOR loans over the then-applicable margin for index rate loans, or (2) at the election of the Company, a LIBOR rate, plus in either case, an applicable interest rate margin              
Debt Instrument, Interest Rate Increase     0.0200              
Line of Credit Facility, Covenant Terms     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 $13.5 million              
Line of Credit Facility, Covenant Compliance     As of September 29, 2012, the Company was in compliance with all of the financial and negative covenants under the Credit Facility and there have not been any events of default              
Amortization of Financing Costs         97,000 81,000 363,000 363,000    
Accumulated Amortization, Deferred Finance Costs     4,200,000   4,200,000 4,100,000        
Debt Instrument, Face Amount   13,500,000       13,500,000        
Debt Instrument, Frequency of Periodic Payment   five                
Debt Instrument, Interest Rate, Stated Percentage   6.00%                
Early Repayment of Subordinated Debt 12,400,000                  
Gains (Losses) on Extinguishment of Debt         425,000          
Minimum [Member] | Index Rate Loans [Member]
                    
Debt Instrument, Basis Spread on Variable Rate     0.50%   0.50%          
Minimum [Member] | LIBOR Loans [Member]
                    
Debt Instrument, Basis Spread on Variable Rate     1.50%   1.50%          
Maximum [Member] | Index Rate Loans [Member]
                    
Debt Instrument, Basis Spread on Variable Rate     1.25%   1.25%          
Maximum [Member] | LIBOR Loans [Member]
                    
Debt Instrument, Basis Spread on Variable Rate     2.50%   2.50%          
Index Rate Loans [Member]
                    
Line of Credit Facility, Interest Rate at Period End     0.50%   0.50%          
LIBOR Loans [Member]
                    
Line of Credit Facility, Interest Rate at Period End     1.50%   1.50%          
Revolving Credit Facility [Member]
                    
Line of Credit Facility, Remaining Borrowing Capacity     67,200,000   67,200,000          
Letter of Credit [Member]
                    
Letters of Credit Outstanding, Amount     $ 1,300,000   $ 1,300,000