CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,041	$ 2,535
Foreign currency translation adjustments	2	(3)
Comprehensive income	$ 4,043	$ 2,532