Summary of Significant Accounting Policies (Details 5) (USD $)	6 Months Ended			12 Months Ended	6 Months Ended
	Aug. 03, 2013	Jul. 28, 2012	Aug. 03, 2013 Stock Options	Feb. 02, 2013 Stock Options	Aug. 03, 2013 Restricted Stock and Performance Stock Units	Jul. 28, 2012 Restricted Stock and Performance Stock Units	Feb. 01, 2013 Restricted Stock and Performance Stock Units
Shares
Outstanding at the beginning of the period (in shares)			1,075,000
Granted (in shares)			72,500
Exercised (in shares)			1,666
Canceled/forfeited (in shares)			58,335
Outstanding at the end of the period (in shares)			1,087,499	1,075,000
Vested and Exercisable at the end of the period (in shares)			677,988
Non-vested and not exercisable at the end of the period (in shares)			409,511
Weighted Average Price
Outstanding at the beginning of the period (in dollars per share)			$ 16.37
Granted (in dollars per share)			$ 13.60
Exercised (in dollars per share)			$ 10.92
Canceled/forfeited (in dollars per share)			$ 13.89
Outstanding at the end of the period (in dollars per share)			$ 16.31	$ 16.37
Vested and Exercisable at the end of the period (in dollars per share)			$ 16.86
Non-vested and not exercisable at the end of the period (in dollars per share)			$ 15.40
Weighted Average Remaining Contractual Term (in years)
Outstanding			4 years 11 days	4 years 5 months 26 days
Vested and Exercisable at the end of the period			3 years 6 months 11 days
Non-vested and not exercisable at the end of the period			4 years 10 months 10 days
Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)			$ 193,050	$ 424,830
Vested and Exercisable at the end of the period (in dollars)			76,803
Non-vested and not exercisable at the end of the period (in dollars)			116,247
Unrecognized stock-based compensation
Unrecognized stock-based compensation expense (in dollars)			1,400,000		500,000
Weighted average period for recognition of unrecognized stock-based compensation expense			2 years 2 months 16 days		2 years 1 month 24 days
Total fair value of vested options (in dollars)			600,000
Compensation expense (in dollars)	$ 500,000	$ 450,000			$ 30,000	$ 0
Closing share price (in dollars per share)							$ 13.95
Target growth rate (as a percent)					10.00%
Target share price for fiscal year 2014 (in dollars per share)					$ 15.35
Target share price for fiscal year 2015 (in dollars per share)					$ 16.88
Target share price for fiscal year ending in 2016 (in dollars per share)					$ 18.57
Award vesting percentage					33.33%
Number of Shares
Unvested stock at the beginning of the period (in shares)					7,500
Granted (in shares)					79,500
Unvested stock at the end of the period (in shares)					87,000
Weighted Average Grant-Date Fair Value
Unvested stock at the beginning of the period (in dollars per share)					$ 13.27
Granted (in dollars per share)					$ 5.00
Unvested stock at the end of the period (in dollars per share)					$ 5.71