Note 9. Intangible Assets (Detail) - Amortization Expense of Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Intangibles amortization expense	$ 2,716	$ 2,385
Cost of Sales [Member]
Intangibles amortization expense	2,327	1,991
Operating Expense [Member]
Intangibles amortization expense	$ 389	$ 394