Note 11. Restructuring costs (Details) (USD $)	3 Months Ended	6 Months Ended				3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended
	Aug. 03, 2013	Aug. 03, 2013	Aug. 03, 2013 Early Termination [Member]	Aug. 03, 2013 Cost of Sales [Member]	Aug. 03, 2013 Operating Expense [Member]	Aug. 03, 2013 Employee Severance [Member]	May 04, 2013 Employee Severance [Member]	Feb. 02, 2013 Employee Severance [Member]	Aug. 03, 2013 Facility Closing [Member]	Feb. 02, 2013 Facility Closing [Member]
Note 11. Restructuring costs (Details) [Line Items]
Restructuring and Related Cost, Incurred Cost		$ 3,300,000		$ 40,000	$ 210,000
Restructuring and Related Cost, Number of Positions Eliminated		17
Restructuring Costs		830,000				200,000			800,000
Potential Early Termination Fees			300,000
Monthly Lease Payments			45,000,000,000
Operating Leases, Future Minimum Payments Due	11,700,000	11,700,000	1,100,000
Restructuring Charges	$ 680,000	$ 890,000		$ 40,000,000		$ 234,000	$ 250,000	$ 2,167,000	$ 446,000	$ 8,000