Revenue Recognition - Schedule of Impacts of Topic 606 on Consolidated Statements of Operations and Comprehensive Loss (Details) - USD ($)	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Total revenues	$ 17,783,000	$ 38,613,000
Costs of revenues	19,988,000	33,978,000
Gross (loss) profit	(2,205,000)	4,635,000
Administrative and selling expenses	6,759,000	6,142,000
Research and development expenses	6,280,000	4,046,000
Loss from operations	(15,244,000)	(5,553,000)
Interest expense	(2,464,000)	(2,141,000)
Other income, net	160,000	476,000
Loss before provision for income taxes	(17,548,000)	(7,218,000)
Provision for income taxes	0	(3,035,000)
Net loss	(17,548,000)	$ (4,183,000)
Adjustments Due to Topic 606 [Member] | Topic 606 [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Total revenues	1,548,000
Costs of revenues	275,000
Gross (loss) profit	1,273,000
Loss from operations	1,273,000
Net loss	1,273,000
Balances Without Adoption of ASC 606 [Member] | Topic 606 [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Total revenues	19,331,000
Costs of revenues	20,263,000
Gross (loss) profit	(932,000)
Administrative and selling expenses	6,759,000
Research and development expenses	6,280,000
Loss from operations	(13,971,000)
Interest expense	(2,464,000)
Other income, net	160,000
Net loss	$ (16,275,000)