v3.19.1

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Apr. 01, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,105)	$ (3,247)
Other comprehensive gain (loss), net of tax:
Unrealized gains (losses) on available-for-sale marketable securities	215	(231)
Unrealized gains on derivative instruments	303	0
Other comprehensive gain (loss), net of tax	518	(231)
Comprehensive loss	$ (587)	$ (3,478)

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.

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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 and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

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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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