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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Apr. 27, 2019	Apr. 28, 2018	Apr. 29, 2017
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (958)	$ 5,562	$ 10,342
Other comprehensive (loss) income:
Cumulative translation adjustments	(1,749)	1,808	(1,472)
Unrealized gain (loss) on available-for-sale securities, net of tax	107	(141)	(11)
Total other comprehensive (loss) income, net of tax	(1,642)	1,667	(1,483)
Comprehensive (loss) income	$ (2,600)	$ 7,229	$ 8,859

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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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