CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($) $ in Thousands	Aug. 01, 2015	Jan. 31, 2015
Allowance for doubtful accounts	$ 3,228	$ 2,404
Nonvoting Preferred Stock [Member]
Preferred stock, shares authorized	10,000,000	10,000,000
Nonvoting Series A Junior Preferred Stock [Member]
Preferred stock, shares authorized	224,594	224,594
Common Class A [Member]
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	37,265,456	36,969,268
Common stock, shares outstanding	37,265,456	36,969,268
Nonvoting Common Class B [Member]
Common stock, shares authorized	11,500,000	11,500,000