Capitalization (Details 3) (Stock Options, USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Stock Options
Shares
Outstanding at the beginning of the period (in shares)	1,156,834	1,075,000	973,833
Granted (in shares)	188,000	168,500	293,000
Exercised (in shares)	(125,065)	(3,332)	(5,500)
Canceled/forfeited (in shares)	(34,002)	(83,334)	(186,333)
Outstanding at the end of the period (in shares)	1,185,767	1,156,834	1,075,000
Vested and Exercisable at the end of the period (in shares)	774,096
Weighted Average Price
Outstanding at the beginning of the period (in dollars per share)	$ 16.02	$ 16.37	$ 17.92
Granted (in dollars per share)	$ 13.82	$ 12.92	$ 12.50
Exercised (in dollars per share)	$ 14.83	$ 10.92	$ 13.06
Canceled/forfeited (in dollars per share)	$ 12.58	$ 14.57	$ 18.44
Outstanding at the end of the period (in dollars per share)	$ 15.89	$ 16.02	$ 16.37
Vested and Exercisable at the end of the period (in dollars per share)	$ 16.74
Weighted Average Remaining Contractual Term (in years)
Outstanding	3 years 5 months 27 days	3 years 10 months 6 days	4 years 5 months 27 days
Vested and Exercisable at the end of the period	2 years 7 months 28 days
Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)	$ 2,910	$ 436	$ 425
Vested and Exercisable at the end of the period (in dollars)	1,304
Fair value
Weighted average grant date fair value of options granted (in dollars per share)	$ 3.49	$ 4.09	$ 3.23
Intrinsic value of options exercised (in dollars)	411	6	8
Unrecognized stock-based compensation
Unrecognized stock-based compensation expense (in dollars)	1,100
Weighted average period for recognition of unrecognized stock-based compensation expense	1 year 8 months 5 days
Total fair value of vested options (in dollars)	$ 700	$ 800	$ 1,100