Investments in Associated Companies Summarized Financial Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 25, 2012	Mar. 31, 2013	Mar. 25, 2012
Schedule of Equity Method Investments [Line Items]
Equity in earnings of associated companies	$ 1,733,000	$ 1,430,000	$ 4,778,000	$ 4,241,000
Equity Method Investee- TNI [Member]
Schedule of Equity Method Investments [Line Items]
Share of TNI Operating Expenses	(108,000,000)	(207,000,000)	(276,000,000)	(312,000)
Equity Method Investment, Summarized Financial Information, Revenue	15,922,000	15,201,000	33,466,000	31,723,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments	13,114,000	12,880,000	26,751,000	25,940,000
Equity Method Investment, Summarized Financial Information, Workforce Adjustments	0	0	0	(64,000)
Equity Method Investment, Summarized Financial Information, Operating Income	2,808,000	2,321,000	6,715,000	5,847,000
Income (Loss) From Equity Method Investments Before Amortization	1,404,000	1,161,000	3,358,000	2,924,000
Amortization Of Intangible Assets- TNI	181,000	181,000	361,000	361,000
Equity in earnings of associated companies	1,223,000	980,000	2,997,000	2,563,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	468,000		468,000
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two	418,000		418,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	418,000		418,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	418,000		418,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	418,000		418,000
Equity Method Investee- MNI [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Summarized Financial Information, Revenue	15,474,000	16,173,000	34,038,000	35,630,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments	13,628,000	14,353,000	27,677,000	29,447,000
Equity Method Investment, Summarized Financial Information, Workforce Adjustments	(11,000)	2,000	(11,000)	28,000
Equity Method Investment, Summarized Financial Information, Depreciation And Amortization	381,000	423,000	764,000	847,000
Equity Method Investment, Summarized Financial Information, Operating Income	1,476,000	1,395,000	5,608,000	5,308,000
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	952,000	899,000	3,495,000	3,359,000
Equity in earnings of associated companies	$ 510,000	$ 450,000	$ 1,781,000	$ 1,678,000