Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended
	Dec. 01, 2014	Jan. 31, 2016	Feb. 01, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash payments		$ 1,459
Computer Systems Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payment to acquire note receivable	$ 4,000
Payment term	45 days
Working capital	$ 6,000
Gain on the sale transaction			$ 1,200
Restructuring and related cost			2,200
Computer Systems Segment | Severance and benefit costs
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and related cost			900
Computer Systems Segment | Professional Fees Incurred
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and related cost			900
Computer Systems Segment | Lease obligation costs
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and related cost			400
Cash payments		2,000
Expected cost remaining		200
Computer Systems Segment | NewNet Communication Technologies, LLC
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%
Notes receivable, fair value	$ 8,400
Amortization period	4 years
Effective yield (interest rate)	5.10%
Unamortized discount		1,100
Amortization of receivable amortization		$ 100	$ 100