Unaudited Consolidated Condensed Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 27, 2014	Apr. 28, 2013
Net income	$ 7,867	$ 14,777
Other comprehensive loss, before tax:
Change in unrealized holding income (loss) on available-for-sale investments	1	(1)
Change in unrealized loss on interest rate cap	(110)	(232)
Reclassification to Net income	33	0
Other comprehensive loss, before tax	(76)	(233)
Benefit for taxes related to items of other comprehensive loss	28	85
Other comprehensive loss, net of tax	(48)	(148)
Total comprehensive income, net of tax	$ 7,819	$ 14,629