CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Statement - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Sep. 26, 2015	Jun. 27, 2015	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Net (loss) income	$ (17,923)	$ (9,693)	$ (9,675)	$ (118)	$ 1,953	$ (4,586)	$ (3,260)	$ (6,364)	$ (37,409)	$ (12,257)	$ (43,811)
Cumulative translation adjustment, net of tax									(348)	(922)	(384)
Accumulated other comprehensive loss related to benefit plan obligations, net of tax									135	(4)	(25)
Net unrealized (loss) gain on available-for-sale securities, net of tax									(6)	3	(15)
Other Comprehensive Income (Loss), Net of Tax									(219)	(923)	(424)
Comprehensive (loss) income									$ (37,628)	$ (13,180)	$ (44,235)

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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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Amount after tax, before 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 and reclassification adjustments of other comprehensive income (loss).

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

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