Note 11 - Employee Benefit Plans (Detail) - Plan Asset Mix	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010
Large Cap Equities [Member] | Target [Member]
Equity Investment	35.00%
Large Cap Equities [Member]
Equity Investment	39.30%	38.60%	26.10%
Mid Cap Equities [Member] | Target [Member]
Equity Investment	8.00%
Mid Cap Equities [Member]
Equity Investment	8.90%	9.10%	9.00%
Small Cap Equities [Member] | Target [Member]
Equity Investment	9.00%
Small Cap Equities [Member]
Equity Investment	5.60%	6.10%	8.70%
International Equities [Member] | Target [Member]
Equity Investment	8.00%
International Equities [Member]
Equity Investment	5.90%	6.00%	16.80%
Fixed Income Funds [Member] | Target [Member]
Equity Investment	40.00%
Fixed Income Funds [Member]
Equity Investment	37.20%	39.30%	38.10%
Cash and Cash Equivalents [Member] | Target [Member]
Equity Investment	0.00%
Cash and Cash Equivalents [Member]
Equity Investment	3.10%	0.90%	1.30%