Other Assets (Details) - USD ($)	Dec. 31, 2018	Oct. 31, 2018	Dec. 31, 2017	Oct. 31, 2017	Oct. 31, 2016
Other assets	$ 1,800,000		$ 1,839,000
Less: current portion	0		(275,000)
Other assets	1,800,000		1,564,000
Alameda Security Deposit
Other assets	55,000		321,000
Lease deposit			275,000
CD For Green Bank Collateral Security
Other assets	1,026,000		1,019,000
Nevada Sales And Use Tax Deposit
Other assets	49,000		49,000
Facility Closure Trust Deposit
Other assets	$ 670,000		$ 450,000
Lease deposit receivable in 2016					$ 100,000
Lease deposit receivable in 2017				$ 350,000
Lease deposit receivable in 2018		$ 220,000