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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 26, 2014	Apr. 27, 2013	Apr. 28, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 22,206	$ 22,779	$ 8,489
Other comprehensive income (loss):
Cumulative translation adjustments	147	(102)	(20)
Unrealized (loss) gain on available-for-sale securities, net of tax	(25)	(49)	52
Total other comprehensive income (loss), net of tax	122	(151)	32
Comprehensive income	$ 22,328	$ 22,628	$ 8,521

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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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