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Asset Acquisitions (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 6 Months Ended 24 Months Ended
Apr. 11, 2017
Oct. 17, 2016
Jul. 29, 2017
Jul. 30, 2016
Jul. 29, 2017
Jul. 30, 2016
Feb. 02, 2019
Jan. 30, 2019
Jan. 30, 2018
Jan. 28, 2017
Asset Acquisitions (Details) [Line Items]                    
Business Combination, Contingent Consideration, Liability     $ 2,115   $ 2,115         $ 8,552
Operating Income (Loss)     (5,369) $ (4,522) $ (10,576) $ (5,207)        
Increase (Decrease) in Other Deferred Liability     $ 1,400              
Collaborative Arrangement [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Business Acquisition, Percentage of Voting Interests Acquired     50.00%   50.00%          
Payments to Acquire Equity Method Investments $ 2,600       $ 2,700          
etailz [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Payments to Acquire Businesses, Net of Cash Acquired   $ 32,300                
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)   5.7                
Other Payments to Acquire Businesses   $ 4,300                
Business Acquisition, Share Price (in Dollars per share)   $ 3.56                
Equity Issued in Business Combination, Fair Value Disclosure   $ 20,400                
EarnOutProvisionAchievementDescription   An earn-out of up to a maximum of $14.6 million would be payable in fiscal 2018and fiscal 2019 subject to the achievement by etailz of $6 million in operating income in fiscal 2017 and $7.5 million in fiscal2018 as outlined in the share purchase agreement prior to its amendment as discussed in the following paragraph.                
Business Combination, Contingent Consideration, Liability   $ 14,600                
Present Value of Future Insurance Profits, Amortization Expense, Remainder of Fiscal Year               $ 7,500 $ 6,000  
Decrease in Restricted Cash   1,900 $ 11,500              
Due to Employees, Noncurrent   $ 2,300                
Escrow Deposit     3,100   3,100          
Operating Income (Loss)             $ 15,500      
etailz [Member] | Original Amount [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Maximum Amount Available Under Employee Rentention Bonus Plan     4,200              
etailz [Member] | New Amount [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Maximum Amount Available Under Employee Rentention Bonus Plan     5,700              
etailz [Member] | Minimum [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Operating Income (Loss)     13,500              
etailz [Member] | Future Investment [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Decrease in Restricted Cash     5,000              
etailz [Member] | To The Selling Shareholders [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Decrease in Restricted Cash     5,000              
etailz [Member] | To The Company [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Decrease in Restricted Cash     1,500              
Two Thousand and Nineteen [Member] | Minimum [Member] | etailz [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Due to Employees, Noncurrent     1,600   $ 1,600          
Maximum [Member] | etailz [Member]                    
Asset Acquisitions (Details) [Line Items]                    
Operating Income (Loss)     $ 15,500