Inventories (Details Textual) - USD ($) $ in Thousands	Jul. 11, 2015	Dec. 27, 2014	Jul. 12, 2014
Inventory [Line Items]
Disposal Group, Including Discontinued Operation, Inventory	$ 0	$ 0	$ 6,785

Amount classified as inventory attributable to disposal group held for sale or disposed of.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 5B

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721673-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=51716988&loc=d3e1107-107759

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721533-107759

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2941-110230

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