Summary Of Significant Accounting Policies (Concentration of Risk Narrative)(Details)	3 Months Ended		12 Months Ended
	Jan. 28, 2017 customer	Jan. 30, 2016 customer	Oct. 29, 2016 customer
Concentration Risk
Number of Financial Institutions	8
Customer Concentration Risk | Accounts Receivable
Concentration Risk
Concentration Risk, Percentage			42.00%
Number Of Customers Included In Concentration Disclosures	1		2
Customer Concentration Risk | Accounts Receivable | Major Customer One
Concentration Risk
Concentration Risk, Percentage	28.00%		29.00%
Customer Concentration Risk | Accounts Receivable | Major Customer Two
Concentration Risk
Concentration Risk, Percentage			13.00%
Customer Concentration Risk | Sales Revenue, Segment
Concentration Risk
Concentration Risk, Percentage		34.00%
Number Of Customers Included In Concentration Disclosures	1	2
Customer Concentration Risk | Sales Revenue, Segment | Major Customer One
Concentration Risk
Concentration Risk, Percentage	19.00%	20.00%
Customer Concentration Risk | Sales Revenue, Segment | Major Customer Two
Concentration Risk
Concentration Risk, Percentage		14.00%