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Segment reporting (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
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Dec. 28, 2013
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| Segment Reporting, Revenue Reconciling Item [Line Items] | |
| Impairment of Intangible Assets, Finite-lived | $ (310) |
| SegmentReportingDisclosureOfMajorCustomers | 0 |
| X | ||||||||||
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Disclosure of the extent of enterprise reliance on its major customers. For example, includes revenues from transactions with a single external customer amounting to 10 percent or more of the entity's revenues, the total amount of revenues from each such customer, and the identity of the segment or segments reporting the revenues. A group of entities that the entity knows to be under common control generally will be considered a single customer for inclusion in this item. The federal government, a state government, a local government (for example, a county or municipality), or a foreign government each will generally be considered as a single customer for inclusion in this item. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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