Note 15 - Segment and Geographical Information (Details)	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Note 15 - Segment and Geographical Information (Details) [Line Items]
Number of Reportable Segments	1
Customer 1 [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Note 15 - Segment and Geographical Information (Details) [Line Items]
Concentration Risk, Percentage	16.00%	15.00%
Customer 2 [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Note 15 - Segment and Geographical Information (Details) [Line Items]
Concentration Risk, Percentage	12.00%	12.00%
Customer 3 [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Note 15 - Segment and Geographical Information (Details) [Line Items]
Concentration Risk, Percentage	10.00%	11.00%
Customer 4 [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Note 15 - Segment and Geographical Information (Details) [Line Items]
Concentration Risk, Percentage		10.00%
License and Other [Member]
Note 15 - Segment and Geographical Information (Details) [Line Items]
Percentage of Revenue During Period	0.70%	0.90%	0.20%