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Investments in Associated Companies Summarized Financial Information (Details) - USD ($)
 3 Months Ended
Dec. 27, 2015
Dec. 28, 2014
Schedule of Equity Method Investments [Line Items]    
Equity in earnings of associated companies $ 2,799,000 $ 2,757,000
Equity Method Investee- TNI [Member]    
Schedule of Equity Method Investments [Line Items]    
Proceeds from Equity Method Investment, Dividends or Distributions 1,479,000 1,194,000
Share of TNI Operating Expenses (119,000) (68,000)
Equity Method Investment, Summarized Financial Information, Revenue   15,600,000
Equity Method Investment, Summarized Financial Information, Advertising Revenue 14,782,000  
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments   12,102,000
Equity Method Investment, Summarized Financial Information, Other Operating Expenses 11,341,000  
Equity Method Investment, Summarized Financial Information, Workforce Adjustments 0 0
Equity Method Investment, Summarized Financial Information, Operating Income 3,441,000 3,498,000
Income (Loss) From Equity Method Investments Before Amortization 1,721,000 1,749,000
Amortization Of Intangible Assets- TNI 105,000 105,000
Equity in earnings of associated companies 1,616,000 1,644,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 418,000  
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two 418,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Three 418,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Four 418,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Five 105,000  
Equity Method Investee- MNI [Member]    
Schedule of Equity Method Investments [Line Items]    
Proceeds from Equity Method Investment, Dividends or Distributions 1,750,000  
Equity Method Investment, Summarized Financial Information, Revenue 17,789,000 18,657,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments   14,631,000
Equity Method Investment, Summarized Financial Information, Other Operating Expenses 13,612,000  
Equity Method Investment, Summarized Financial Information, Workforce Adjustments 0 11,000
Equity Method Investment, Summarized Financial Information, Depreciation And Amortization 410,000 464,000
Equity Method Investment, Summarized Financial Information, Operating Income 3,767,000 3,551,000
Equity Method Investment, Summarized Financial Information, Net Income (Loss) 2,358,000 2,224,000
Equity in earnings of associated companies $ 1,183,000 $ 1,112,000