XML 68 R46.htm IDEA: XBRL DOCUMENT v3.7.0.1
Business Organization and Summary of Significant Accounting Policies - Inventories (Details) - supplier
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Percentage of purchases made from supplier 23.00% 23.00%
Number of suppliers total purchases made from 1 1
CHINA | Geographic Concentration Risk | Cost of Goods, Total    
Concentration Risk [Line Items]    
Percentage merchandise cost originated in China 55.00% 54.00%