Note 12 - Condensed Consolidated Statement of Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Nov. 01, 2014	Nov. 01, 2014	Feb. 01, 2014
Balance, February 1, 2014	$ 145,359	$ 145,359	$ 158,391
Unrealized loss on marketable securities, net of tax	(33)	(124)
Currency translation adjustments		(701)
Stock-based compensation expense		4,578
Tax effect related to share awards		36
Net proceeds from common stock issued under share plans		1,270
Net loss	(557)	(18,091)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Balance, February 1, 2014	25	25	149
Unrealized loss on marketable securities, net of tax		(124)
Accumulated Translation Adjustment [Member]
Balance, February 1, 2014	(199)	(199)	502
Currency translation adjustments		(701)
Common Stock [Member]
Balance, February 1, 2014 (in shares)	39,591,649	39,591,649	39,083,961
Balance, February 1, 2014	491,072	491,072	485,188
Stock-based compensation expense		4,578
Tax effect related to share awards (in shares)		(32,135)
Tax effect related to share awards		36
Net proceeds from common stock issued under share plans (in shares)		539,823
Net proceeds from common stock issued under share plans		1,270
Retained Earnings [Member]
Balance, February 1, 2014	(257,341)	(257,341)	(239,250)
Net loss		(18,091)
Treasury Stock [Member]
Balance, February 1, 2014 (in shares)	(4,659,143)	(4,659,143)	(4,659,143)
Balance, February 1, 2014	$ (88,198)	$ (88,198)	$ (88,198)