Note 11 - Employee Benefit Plans - Plan Asset Mix (Details)	12 Months Ended
	Oct. 03, 2015
Large Cap Equities [Member]
Defined Benefit Plan, Target Plan Asset Allocations	37.60%
Percentage of Plan Assets	36.60%
Mid Cap Equities [Member]
Defined Benefit Plan, Target Plan Asset Allocations	7.70%
Percentage of Plan Assets	7.40%
Small Cap Equities [Member]
Defined Benefit Plan, Target Plan Asset Allocations	8.20%
Percentage of Plan Assets	8.30%
International Equities [Member]
Defined Benefit Plan, Target Plan Asset Allocations	8.80%
Percentage of Plan Assets	8.80%
Fixed Income Investments [Member]
Defined Benefit Plan, Target Plan Asset Allocations	37.30%
Percentage of Plan Assets	38.00%
Cash and Cash Equivalents [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.40%
Percentage of Plan Assets	0.90%