Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Aug. 02, 2014	Aug. 03, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,737	$ 3,414	$ 15,812	$ 18,106
Other comprehensive income, net of tax:
Amounts reclassified from accumulated other comprehensive income	2	3	5	5
Comprehensive income	$ 1,739	$ 3,417	$ 15,817	$ 18,111