Annual report pursuant to Section 13 and 15(d)

Discontinued Operations (Details)

v3.8.0.1
Discontinued Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Oct. 27, 2017
Dec. 01, 2014
Oct. 29, 2017
Jul. 30, 2017
Apr. 30, 2017
Jan. 29, 2017
Oct. 30, 2016
Jul. 31, 2016
May 01, 2016
Jan. 31, 2016
Oct. 29, 2017
Oct. 30, 2016
Nov. 01, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Restructuring and severance costs     $ 307 $ 249 $ 199 $ 624 $ 1,181 $ 970 $ 840 $ 2,761 $ 1,379 $ 5,752 $ 3,635
Settlement and impairment charges     1,404 $ 0 $ 290 $ 0 364 $ 0 $ 0 $ 0 1,694 364 6,626
Severance                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Restructuring and severance costs                     1,301 5,373  
Discontinued Operations, Disposed of by Sale | Computer Systems Segment | NewNet Communication Technologies, LLC                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Note receivable $ 1,000 $ 10,000                      
Interest rate   0.50%                      
Payment term   4 years                      
Capital interest percentage   20.00%                      
Payment to acquire note receivable   $ 4,000                      
Payment term   45 days                      
Working capital adjustment 1,500 $ 6,000 $ 1,700               1,700    
Loss on disposal                         1,500
Restructuring and severance costs                         2,200
Unamortized discount             $ 1,100         $ 1,100  
Gross receivable amount 7,500                        
Agreed upon cash receipt 6,500                        
Proceeds from collection of notes receivable 5,000                        
Receivable amount, net of working capital adjustment $ 6,000                        
Settlement and impairment charges                     $ 1,400    
Discontinued Operations, Disposed of by Sale | Computer Systems Segment | NewNet Communication Technologies, LLC | Severance                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Restructuring and severance costs                         900
Discontinued Operations, Disposed of by Sale | Computer Systems Segment | NewNet Communication Technologies, LLC | Professional Fees                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Restructuring and severance costs                         900
Discontinued Operations, Disposed of by Sale | Computer Systems Segment | NewNet Communication Technologies, LLC | Lease Obligation                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Restructuring and severance costs                         $ 400
Discontinued Operations, Disposed of by Sale | Computer Systems Segment | NewNet Communication Technologies, LLC | Notes Receivable                          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                          
Loan receivable fair value   $ 8,400