Note 6 - Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Cost of Sales [Member]
Intangible Asset Amortization Expense	$ 1,585	$ 2,000	$ 5,467	$ 5,924
Operating Expense [Member]
Intangible Asset Amortization Expense	349	354	1,049	1,064
Intangible Asset Amortization Expense	$ 1,934	$ 2,354	$ 6,516	$ 6,988