Other Assets (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Other assets	$ 3,309,000	$ 1,800,000
Alameda Security Deposit
Other assets	1,197,000	0
CD For Green Bank Collateral Security
Other assets	1,034,000	1,026,000
Equipment Deposits
Other assets	254,000	0
Facility Closure Trust Deposit
Other assets	670,000	670,000
Lease deposit receivable in 2016					$ 100,000
Lease deposit receivable in 2017				$ 350,000
Lease deposit receivable in 2018			$ 220,000
Other assets
Other assets	$ 154,000	$ 104,000