Note 15. Equity Incentive Plans and Employee Benefits (Details) - Stock Option Activities (USD $)	3 Months Ended
	Aug. 03, 2013	May 04, 2013	Feb. 02, 2013
Stock Option Activities [Abstract]
Number of Shares Outstanding	4,586,004	5,055,787
Weighted Average Exercise Price (in Dollars per share)	$ 12.65	$ 12.50
Number of Shares Outstanding	368,680
Weighted Average Exercise Price per Share (in Dollars per share)	$ 4.59
Number of Shares Outstanding	(8,878)	(9,949)
Weighted Average Exercise Price per Share (in Dollars per share)	$ 2.21	$ 3.26
Number of Shares Outstanding	(728,912)	(459,834)
Weighted Average Exercise Price per Share (in Dollars per share)	$ 15.07	$ 11.18
Options exercisable as of:
Number of Shares Outstanding	3,092,912	3,621,537	3,790,842
Weighted Average Exercise Price per Share (in Dollars per share)	$ 12.89	$ 13.42	$ 13.31
Number of Shares Outstanding	4,216,894	4,586,004
Weighted Average Exercise Price (in Dollars per share)	$ 11.57	$ 12.65