Note 11 - Employee Benefit Plans (Detail) (USD $)	12 Months Ended				36 Months Ended	144 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010	Sep. 29, 2012	Sep. 29, 2012
Restructuring Charges			$ 9,927,000
Pension Contributions	362,000	206,000	477,000
Defined Benefit Plans, General Information		$95,000	$704,000			Under the SERPs, if the Participant remains in continuous service with the Company for a period of at least 30years, the Company will pay to the Participant a supplemental retirement benefit for the 15-year period following the Participant's retirement equal to 50% of the Participant's highest average annual base salary for five consecutive years in the 10-year period preceding the Participant's retirement. If the Participant retires prior to the later of age 65 or the completion of 30years of continuous service with the Company, but has completed at least 10 years of continuous service with the Company, the amount of the supplemental retirement benefit will be reduced by 1/360th for each month short of 30years that the Participant was employed by the Company
Description of Postemployment Benefits		$62,000
Postemployment Benefits, Period Expense		15,000	14,000	13,000
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent					75.00%
Cash Payment [Member]
Description of Postemployment Benefits			$74,000	$74,000
Equity Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocations		60.00%
Fixed Income Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocations		40.00%
SERP [Member]
Defined Benefit Plan, Amortization of Net Gains (Losses)		(91,000)	(34,000)	(31,000)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	227,000	227,000	227,000	227,000
Retirement Savings Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		734,000	604,000	439,000
VEBA [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		3,400,000	3,300,000	2,200,000
Plan Amendment [Member]
Restructuring Charges			306,000
Delaware Plan [Member]
Defined Benefit Plan, Amortization of Net Gains (Losses)	49,000
SERP [Member]
Defined Benefit Plan, Amortization of Net Gains (Losses)	$ 138,000
VEBA [Member]
Defined Benefit Plans, General Information		$150,000