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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	May. 02, 2015	Apr. 26, 2014	Apr. 27, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 20,882	$ 22,206	$ 22,779
Other comprehensive (loss) income:
Cumulative translation adjustments	(2,358)	147	(102)
Unrealized loss on available-for-sale securities, net of tax	(22)	(25)	(49)
Total other comprehensive (loss) income, net of tax	(2,380)	122	(151)
Comprehensive income	$ 18,502	$ 22,328	$ 22,628

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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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