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Note 18. Income taxes (Detail) - Net Operating Losses and Tax Credit Carryforwards (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Feb. 02, 2013 Domestic Tax Authority [Member] Minimum [Member]	Feb. 02, 2013 Domestic Tax Authority [Member] Maximum [Member]	Feb. 02, 2013 Domestic Tax Authority [Member]	Feb. 02, 2013 State and Local Jurisdiction [Member] Minimum [Member]	Feb. 02, 2013 State and Local Jurisdiction [Member] Maximum [Member]	Feb. 02, 2013 State and Local Jurisdiction [Member]	Feb. 02, 2013 Foreign Tax Authority [Member] Minimum [Member]	Feb. 02, 2013 Foreign Tax Authority [Member]
Net operating losses (in Dollars)	$ 8,426	$ 8,015			$ 33,934			$ 25,407		$ 29,669
Net operating losses			2019	2032	-	2014	2033	-	Indefinite
Tax credits (in Dollars)	$ 10,936	$ 10,022			$ 15,693			$ 15,689
Tax credits			Dec. 31, 2019	Dec. 31, 2033

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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- Definition

The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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