Income Taxes (Schedule of Reconciliation of Provision (Benefit) for Income Taxes) (Details)	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Income Taxes [Abstract]
Federal statutory rate	34.00%	(34.00%)
State taxes, net of federal benefit	9.00%	(2.40%)
Valuation allowance reversal	(729.80%)
Other changes in valuation allowance	(148.90%)	(10.30%)
Research and development credits	(13.90%)
Non-deductible meals and entertainment	8.10%	3.70%
Non-deductible acquisition costs		23.90%
Non-taxable foreign payroll subsidies	(6.90%)
Non-deductible foreign expenses	6.70%
Reserve for uncertain tax positions	(2.00%)
Foreign rate differential	3.90%	0.50%
Foreign and other taxes		1.40%
Stock-based compensation	9.80%	1.40%
Other	(2.70%)	2.60%
Effective income tax rate	(832.70%)	(13.20%)