Investments in Associated Companies Summarized Financial Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Schedule of Equity Method Investments [Line Items]
Equity in earnings of associated companies	$ 1,705,000	$ 1,836,000	$ 6,114,000	$ 6,348,000
Equity Method Investee- TNI [Member]
Schedule of Equity Method Investments [Line Items]
Share of TNI Operating Expenses	45,000	(17,000)	(153,000)	(51,000)
Equity Method Investment, Summarized Financial Information, Revenue	13,063,000	13,750,000	43,035,000	44,888,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments	10,936,000	11,449,000	34,783,000	36,116,000
Equity Method Investment, Summarized Financial Information, Workforce Adjustments	0	0	0	(87,000)
Equity Method Investment, Summarized Financial Information, Operating Income	2,127,000	2,301,000	8,252,000	8,859,000
Income (Loss) From Equity Method Investments Before Amortization	1,064,000	1,150,000	4,127,000	4,429,000
Amortization Of Intangible Assets- TNI	105,000	104,000	314,000	313,000
Equity in earnings of associated companies	959,000	1,046,000	3,813,000	4,116,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	418,000		418,000
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	314,000		314,000
Equity Method Investee- MNI [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Summarized Financial Information, Revenue	16,580,000	17,278,000	51,258,000	50,710,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments	13,518,000	14,390,000	42,328,000	42,246,000
Equity Method Investment, Summarized Financial Information, Workforce Adjustments	261,000	15,000	318,000	244,000
Equity Method Investment, Summarized Financial Information, Depreciation And Amortization	463,000	384,000	1,390,000	1,179,000
Equity Method Investment, Summarized Financial Information, Operating Income	2,338,000	2,489,000	7,222,000	7,041,000
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	1,491,000	1,579,000	4,603,000	4,464,000
Equity in earnings of associated companies	$ 746,000	$ 790,000	$ 2,301,000	$ 2,232,000