Note 19 - Income taxes (Details) - Reconciliation of Income Tax Benefit (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Reconciliation of Income Tax Benefit [Abstract]
Computed at federal statutory rate of 35%	$ (2,835)	$ (28,357)	$ (60,554)
State taxes provision (benefit), net of federal benefit	12	10	(33)
Uncertain tax positions	253	219	441
Difference between statutory rate and foreign effective tax rate	5,316	31,469	49,839
Stock-based compensation expense	2,769	2,391	746
Change in federal valuation allowance	(1,933)	16,704
Tax credits	(561)	(1,516)	(1,326)
Goodwill and intangible assets impairment			5,646
Other	(71)	(128)	275
Total	$ 2,950	$ 20,747	$ (4,966)