Discontinued Operations - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Dec. 01, 2014	Aug. 02, 2015	Aug. 03, 2014	Aug. 02, 2015	Aug. 03, 2014	Nov. 02, 2014
Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on the sale transaction	$ 1,200
Restructuring and other related costs	2,200	$ 0	$ (25)	$ 1,709	$ 598
Payments for restructuring				1,900
Expected cost remaining		300		300
NewNet Communication Technologies, LLC | Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Note receivable	$ 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	$ 6,000
Notes receivable, fair value	$ 8,400
Receivable with imputed interest, amortization period	4 years
Receivable with imputed interest, effective yield (interest rate)	5.10%
Unamortized discount		1,400		1,400
Interest income resulting from amortization		$ 100		$ 300
Employee Severance | Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other related costs	$ 900
Professional Fees Incurred | Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other related costs	900
Lease obligation costs | Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other related costs	$ 400
Prepaid Expenses and Other Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred tax assets						$ 6,842
Accrued Insurance and Other Liabilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred tax liabilities						$ 3,834