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Fair Value Measurements (Narrative) (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Sep. 27, 2013 Trademarks [Member]	Sep. 28, 2012 Trademarks [Member]	Sep. 28, 2012 Marine Electronics [Member] Trademarks [Member]	Sep. 30, 2011 Ferndale, Washington Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Intangible Assets, Finite-lived	$ 5	$ 3	$ 0
Impairment of Intangible Assets, Finite-lived			609	334
Impairment Charge of Facility				334
Fair Value of Facility				$ 1,300

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software, net of accumulated depreciation.

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