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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 02, 2014	Oct. 27, 2013	Nov. 02, 2014	Oct. 27, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 3,001	$ 3,096	$ 6,346	$ 6,326
Other comprehensive (loss) gain
Unrealized (losses) gains on investments	(18)	22	(28)	(113)
Total other comprehensive (loss) gain	(18)	22	(28)	(113)
Comprehensive income	$ 2,983	$ 3,118	$ 6,318	$ 6,213

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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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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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