Property and Equipment, Net - Schedule of Depreciation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
General and administrative expense, continuing operations	$ 14,869	$ 2,042
General and administrative expense, discontinued operations	1,118	1,100
General and administrative expense, continuing operations and discontinued operations	15,987	3,142
Research and development expense, continuing operations	1,758
Depreciation [Member]
General and administrative expense, continuing operations	1
General and administrative expense, discontinued operations	11	27
General and administrative expense, continuing operations and discontinued operations	12	27
Research and development expense, continuing operations	431
Total depreciation expense	$ 443	$ 27