Other Current Assets - Schedule of Other Current Assets (Parenthetical) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Jul. 31, 2019	Oct. 31, 2018
Generate Lending [Member]
Other Current Assets [Line Items]
Line of credit facility, maximum borrowing capacity	$ 100,000,000
Line of credit facility, expiration period	1 year
NRG Energy, Inc. [Member]
Other Current Assets [Line Items]
Line of credit facility, maximum borrowing capacity		$ 40,000,000
Line of credit facility, expiration period		5 years