Note 15. Equity Incentive Plans and Employee Benefits (Details) (USD $)	3 Months Ended		6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Aug. 03, 2013	Feb. 02, 2013	Aug. 03, 2013 2010 Purchase Plan [Member]	Aug. 03, 2013 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member]	Jul. 28, 2012 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member]	Aug. 03, 2013 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member]	Jul. 28, 2012 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member]	Aug. 03, 2013 Endowment Insurance Pension Plan [Member] Defined Contribution Pension [Member]	Jul. 28, 2012 Endowment Insurance Pension Plan [Member] Defined Contribution Pension [Member]	Aug. 03, 2013 Endowment Insurance Pension Plan [Member] Defined Contribution Pension [Member]	Jul. 28, 2012 Endowment Insurance Pension Plan [Member] Defined Contribution Pension [Member]	Aug. 03, 2013 Retirement Pension Plan, Denmark [Member] Defined Contribution Pension [Member]	Feb. 02, 2013 Retirement Pension Plan, Denmark [Member] Defined Contribution Pension [Member]
Note 15. Equity Incentive Plans and Employee Benefits (Details) [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)			2,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value			$ 1,895,613	$ 0	$ 200,000	$ 0	$ 500,000
Defined Contribution Plan, Cost Recognized	100,000							400,000	200,000	1,100,000	200,000
Supplemental Unemployment Benefits, Severance Benefits												1,200,000	1,200,000
Other Employee Related Liabilities, Current	$ 1,200,000	$ 1,200,000