Fair Value - Schedule of Fair Value of Financial Instruments Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Oct. 31, 2017	Oct. 31, 2016
Warrant liability	$ 4,256	$ 70
Derivative liability	9,246
Total	13,502	70
Level 1 [Member]
Warrant liability
Derivative liability
Total
Level 2 [Member]
Warrant liability
Derivative liability
Total
Level 3 [Member]
Warrant liability	4,256	70
Derivative liability	9,246
Total	$ 13,502	$ 70