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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2016	Feb. 01, 2015	Jan. 31, 2016	Feb. 01, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 4,862	$ 3,812	$ 13,333	$ 10,157
Unrealized (losses) gains on investments
Unrealized holding (losses) gains on investments	(194)	22	(312)	(6)
Reclassification adjustment for realized loss included in net income	71		127
Total other comprehensive (loss) income	(123)	22	(185)	(6)
Comprehensive income	$ 4,739	$ 3,834	$ 13,148	$ 10,151

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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