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Investments in Associated Companies Summarized Financial Information (Details) - USD ($) | 3 Months Ended
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Dec. 25, 2016 | Dec. 27, 2015
Schedule of Equity Method Investments [Line Items] |  |
Equity in earnings of associated companies | $ 2,689,000 | $ 2,799,000
Equity Method Investee- TNI [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Proceeds from Equity Method Investment, Dividends or Distributions | 983,000 | 1,479,000
Share of TNI Operating Expenses | 142,000 | (119,000)
Equity Method Investment, Summarized Financial Information, Revenue | 13,314,000 | 14,782,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments | 9,999,000 | 11,341,000
Equity Method Investment, Summarized Financial Information, Operating Income | 3,315,000 | 3,441,000
Income (Loss) From Equity Method Investments Before Amortization | 1,658,000 | 1,721,000
Amortization Of Intangible Assets- TNI | 105,000 | 105,000
Equity in earnings of associated companies | 1,553,000 | 1,616,000
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 | 105,000 |
Equity Method Investee- MNI [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Proceeds from Equity Method Investment, Dividends or Distributions | 1,250,000 | 1,750,000
Equity Method Investment, Summarized Financial Information, Revenue | 17,042,000 | 17,789,000
Equity Method Investment, Summarized Financial Information, Operating Expenses Excluding Depreciation, Amortization And Workforce Adjustments | 13,405,000 | 13,612,000
Equity Method Investment, Summarized Financial Information, Depreciation And Amortization | 349,000 | 410,000
Equity Method Investment, Summarized Financial Information, Operating Income | 3,288,000 | 3,767,000
Equity Method Investment, Summarized Financial Information, Net Income (Loss) | 2,272,000 | 2,358,000
Equity in earnings of associated companies | $ 1,136,000 | $ 1,183,000

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