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Acquisition and Investment (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 9 Months Ended 24 Months Ended
Apr. 11, 2017
Oct. 17, 2016
Oct. 28, 2017
Jul. 29, 2017
Oct. 29, 2016
Oct. 28, 2017
Oct. 29, 2016
Feb. 02, 2019
Jan. 30, 2019
Jan. 30, 2018
Jan. 28, 2017
Acquisition and Investment (Details) [Line Items]                      
Payments to Acquire Businesses, Net of Cash Acquired             $ 36,600        
Business Combination, Contingent Consideration, Liability     $ 2,115   $ 10,381 $ 2,115 10,381       $ 8,552
Operating Income (Loss)     $ (8,111)   $ (7,808) (18,669) $ (13,016)        
Increase (Decrease) in Other Deferred Liability       $ 1,400              
Proceeds from Equity Method Investment, Distribution, Return of Capital           $ 632          
Collaborative Arrangement [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Business Acquisition, Percentage of Voting Interests Acquired     50.00%     50.00%          
Payments to Acquire Equity Method Investments $ 2,600                    
Proceeds from Equity Method Investment, Distribution           $ 1,700          
Proceeds from Equity Method Investment, Distribution, Return of Capital           700          
Noncontrolling Interest in Net Income (Loss) Joint Venture Partners, Redeemable           $ 1,000          
etailz [Member]                      
Acquisition and Investment (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 2018 and fiscal2019 subject to the achievement by etailz of $6.0 million in operating income in fiscal 2017 and $7.5 million in fiscal 2018 asoutlined 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              
Operating Income (Loss)               $ 15,500      
etailz [Member] | Maximum [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Operating Income (Loss)       15,500              
etailz [Member] | Minimum [Member] | Two Thousand and Nineteen [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Due to Employees, Noncurrent       1,600              
etailz [Member] | Future Investment [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Decrease in Restricted Cash       5,000              
etailz [Member] | To The Selling Shareholders [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Decrease in Restricted Cash       5,000              
etailz [Member] | To The Company [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Decrease in Restricted Cash       1,500              
etailz [Member] | Minimum [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Operating Income (Loss)       13,500              
etailz [Member] | Original Amount [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Maximum Amount Available Under Employee Rentention Bonus Plan       4,200              
etailz [Member] | New Amount [Member]                      
Acquisition and Investment (Details) [Line Items]                      
Maximum Amount Available Under Employee Rentention Bonus Plan       $ 5,700