Summary of Significant Accounting Policies - Potential Common Stock Equivalents Excluded from Computation of Diluted Earning Per Share (Details) - $ / shares	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	582,591	497,820	443,410
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	1,244,000	1,545,000	2,088,000
Range of exercise prices of such options, minimum	$ 4.96	$ 4.96	$ 3.76
Range of exercise prices of such options, maximum	$ 7.52	$ 10.26	$ 10.26
Restricted stock (time-vested)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti dilutive shares	22,000