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Principles of Consolidation (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 13, 2016	Apr. 01, 2017	Jul. 02, 2016	Apr. 02, 2016	Apr. 13, 2017
GNU
GNU Interest
Percentage of ownership interest held by the entity		55.89%		55.89%
Disposal Group, Disposed of by Sale, Not Discontinued Operations | GNU
Sale of GNU interest
Purchase price receivable	$ 1,350
Purchase price received	$ 1,100
Disposal Group, Disposed of by Sale, Not Discontinued Operations | GNU | Future
Sale of GNU interest
Purchase price receivable					$ 250
Disposal Group, Disposed of by Sale, Not Discontinued Operations | GNU | GNU
Sale of GNU interest
GNU gain on sale of business assets			$ 3,800
Disposal Group, Disposed of by Sale, Not Discontinued Operations | CRA | GNU
Sale of GNU interest
GNU gain on sale of business assets			$ 2,100

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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