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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 3,168	$ 7,737	$ 6,944	$ 16,482
Other comprehensive loss:
Cumulative translation adjustments	(202)	(978)	(760)	(1,115)
Unrealized loss on available-for-sale securities, net of tax	(18)	(4)	(3)	(11)
Total other comprehensive loss, net of tax	(220)	(982)	(763)	(1,126)
Comprehensive income	$ 2,948	$ 6,755	$ 6,181	$ 15,356

X

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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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