Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016	Sep. 26, 2015
Net income (loss)	$ 269	$ 1,113	$ 965	$ (1,699)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	561	(4,221)	2,724	(9,754)
Adjustments related to postretirement benefits	(2)	99	(35)	(33)
Change in unrealized gain/loss on investments	(3)		(1)
Other comprehensive income (loss), net of tax	556	(4,122)	2,688	(9,787)
Comprehensive income (loss)	$ 825	$ (3,009)	$ 3,653	$ (11,486)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=51831270

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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