Summary Of Significant Accounting Policies (Concentration of Risk Narrative)(Details)	6 Months Ended		12 Months Ended
	Apr. 30, 2016 customer	May. 02, 2015 customer	Oct. 31, 2015 customer
Concentration Risk
Number of Financial Institutions	5
Customer Concentration Risk | Accounts Receivable
Concentration Risk
Concentration Risk, Percentage	36.00%
Number Of Customers Included In Concentration Disclosures	2		1
Customer Concentration Risk | Accounts Receivable | Major Customer One
Concentration Risk
Concentration Risk, Percentage	20.00%		17.00%
Customer Concentration Risk | Accounts Receivable | Major Customer Two
Concentration Risk
Concentration Risk, Percentage	16.00%
Customer Concentration Risk | Sales Revenue, Segment
Concentration Risk
Concentration Risk, Percentage	30.00%	49.00%
Number Of Customers Included In Concentration Disclosures	2	4
Customer Concentration Risk | Sales Revenue, Segment | Major Customer One
Concentration Risk
Concentration Risk, Percentage	19.00%	15.00%
Customer Concentration Risk | Sales Revenue, Segment | Major Customer Two
Concentration Risk
Concentration Risk, Percentage	11.00%	12.00%
Customer Concentration Risk | Sales Revenue, Segment | Major Customer Three
Concentration Risk
Concentration Risk, Percentage		12.00%
Customer Concentration Risk | Sales Revenue, Segment | Major Customer Four [Member]
Concentration Risk
Concentration Risk, Percentage		11.00%