Employee Benefit Plans (Details Textual) (USD $)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Employee Benefit Plans (Textual) [Abstract]
Total stock-based compensation expense	$ 2,700,000	$ 3,100,000	$ 2,700,000
Restricted stock units granted	94,000
Restricted stock units outstanding	247,000	179,000
Options to purchase outstanding common stock	1,417,906	1,315,024
Recognized over a weighted average period	1 year 10 months 24 days
Restricted stock units, fair value grant prices per share	$ 10.93
Employee Benefit Plans (Additional Textual) [Abstract]
Shares reserved for future stock-based grants	313,000
Weighted average grant, fair value of options granted	$ 10.93	$ 12.31	$ 11.30
Intrinsic value of options exercised	400,000	1,300,000	2,900,000
Unrecognized stock compensation expense	2,500,000
Maximum Employee Contribution Percent	6.00%
Percentage of Employee's Contribution Matched by Company	50.00%
Company's matching contributions	446,000	402,000	400,000
Company's additional contributions on behalf of employees	0	0	0
Company's matching contributions	65,000	60,000	69,000
Restricted Stock units [Member]
Employee Benefit Plans (Textual) [Abstract]
Total stock-based compensation expense	1,300,000	1,100,000	957,000
Options exercise prices, Lower limit	$ 10.93
Options exercise prices, Upper limit	$ 19.06
Restricted stock units granted	94,000	89,000	114,000
Restricted stock units outstanding	247,000
Recognized over a weighted average period	10 months 24 days
Restricted Stock Units Granted to Directors and Vested on First Anniversary of Grant Date	100.00%
Percentage of Restricted Stock Units Granted to Employees vested on Third Anniversary of Grant date	100.00%
Restricted stock units, fair value grant prices per share	$ 10.93	$ 12.33	$ 19.31
Unrecognized compensation expense related to RSUs	1,200,000
Employee stock purchase plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Maximum shares of common stock award	500,000
Payroll deduction of the fair market value	85.00%
Shares of common stock issued	30,545	29,204	24,185
Shares remaining under the original authorization	71,000
In Money Stock Option [Member]
Employee Benefit Plans (Textual) [Abstract]
Options to purchase outstanding common stock	972,906
Intrinsic value of in-the-money options outstanding	2,600,000
Aggregate Intrinsic value options exercisable	$ 2,500,000
Maximum [Member]
Employee Benefit Plans (Textual) [Abstract]
Maximum shares of common stock award	2,500,000
Maximum contractual terms	10 years
Options issued to employees, Vested term	4 years
Options exercise prices, Upper limit	$ 19.06
Minimum [Member]
Employee Benefit Plans (Textual) [Abstract]
Options issued to employees, Vested term	3 years
Options exercise prices, Lower limit	$ 2.03