Other expense, net (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 05, 2014	Mar. 30, 2013
Other Income And Other Expense [Line Items]
Severance Costs	$ 159	$ 287
Fair value of contingent consideration	$ (1,373)	$ 0

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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+ Details