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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Aug. 03, 2019	Jul. 28, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 7,030	$ 4,574
Other comprehensive loss:
Cumulative translation adjustments	(526)	(1,139)
Unrealized gain (loss) on available-for-sale securities, net of tax	41	(13)
Total other comprehensive loss, net of tax	(485)	(1,152)
Comprehensive income	$ 6,545	$ 3,422

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