Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Stock Option Valuation) (Details)

v3.6.0.2
Stock-Based Compensation (Stock Option Valuation) (Details) - USD ($)
12 Months Ended
May 01, 2012
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term   3 years 7 months    
Dividends $ 0.20      
Weighted-average expected option term   4 years 8 months 4 years 7 months 4 years 1 month
Weighted-average expected volatility   54.22% 51.46% 60.00%
Weighted-average risk-free interest rate   1.38% 1.50% 1.60%
Weighted-average expected dividend yield (1) [1]   0.00% 0.00% 0.00%
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average expected dividend yield (1)   0.00% 0.00% 0.00%
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average expected dividend yield (1)   0.00% 0.00% 0.00%
[1] Following the May 1, 2012 payment, we discontinued the quarterly $0.20 per share dividend.