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Nature of Activities and Summary of Significant Accounting Policies (Details Narrative) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 31, 2020	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jun. 30, 2020
Sales revenue of high-grade alcohol		2.00%		18.00%
Received			$ 1,224,000	$ 0
Other long-term liabilities			2,714,000		$ 2,944,000
Allowance for doubtful accounts			140,400,000		$ 1,260,000
Accounts Receivable [Member]
Allowance for doubtful accounts			1,400,000			$ 1,300,000
North America [Member]
Gallon per year			65,000,000
India [Member]
Gallon per year			50,000,000
Carbon Zero [Member]
Gallon per year			45,000,000
Kakinada Plant One [Member]
Gallon per year			50,000,000
Nameplate capacity			150,000
Keyes Plant [Member]
Gallon per year			65,000,000
Kakinada Plant [Member]
Gallon per year			50,000,000
Nevo Motors [Member]
Preferred stock shares				489,716
Common stock shares				5,000,000
CEC-LCFPP [Member]
Renewable natural gas fuel			877,000
Awarded grants			4,200,000
CDFA [Member]
Awarded grants	$ 7,800,000		3,200,000
Received	$ 33,000
CEC-LCAEGP [Member]
Awarded grants			5,000,000.0
Contributions			7,900,000
Actual expenses			5,000,000.0
Capital expenditures			115,000
Other long-term liabilities			$ 1,700,000

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