Note 8 - Long-Term Debt (Detail) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 12, 2011	Nov. 19, 2010	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012	Sep. 29, 2012	Feb. 06, 2012	Feb. 05, 2012
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, Remaining Borrowing Capacity			72,000,000		72,000,000
Letters of Credit Outstanding, Amount			1,400,000		1,400,000
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.
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 March 30, 2013, 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			25,000	24,000	51,000	45,000
Accumulated Amortization, Deferred Finance Costs			4,200,000		4,200,000		4,200,000
Debt Instrument, Face Amount		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%
Upon Occurrence of Certain Events of Default [Member]
Debt Instrument, Interest Rate Increase					0.0200