Nature of Business, Financial Condition and Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of presentation	Basis of presentation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) along with the instructions to Form 10-Q and Article 10 of Regulation S-X assuming the Company will continue as a going concern. Accordingly, they do not include the information and footnotes required by GAAP for complete financial statements. These statements reflect all normal and recurring adjustments which, in the opinion of management, are necessary to present fairly the financial position, results of operations and cash flows of the Company as of, and for the nine months ended, September 30, 2023, and are not necessarily indicative of the results to be expected for the full year. These statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included under the heading “Financial Statements and Supplementary Data” in Part II, Item 8 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2022. The financial statements at December 31, 2022, have been derived from the audited financial statements as of that date. For further information, refer to our audited financial statements and notes thereto included for the year ended December 31, 2022 (the “2022 Annual Report”).
Variable Interest Entities	Variable Interest Entities. The Company enters into agreements with special purpose entities (“SPEs”), some of which are variable interest entities (“VIEs”), in the ordinary course of business. A legal entity is considered a VIE if it has either a total equity investment that is insufficient to finance its operations without additional subordinated financial support or whose equity holders lack the characteristics of a controlling financial interest. The Company’s variable interests arise from contractual or other monetary interests in the entity. The typical condition for a controlling financial interest ownership is holding a majority of the voting interests of an entity; however, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve controlling voting interests. The Company consolidates a VIE if it is deemed to be the primary beneficiary. The Company determines it is the primary beneficiary if it has the power to direct the activities that most significantly impact the VIEs’ economic performance and has the obligation to absorb losses or has the right to receive benefits of the VIE that could potentially be significant to the VIE. The Company evaluates its relationships with its VIEs on an ongoing basis to determine whether it is the primary beneficiary. See Footnote 20 below for further information.
Prior Period Financial Statement Immaterial Adjustment	Prior Period Financial Statement Immaterial Adjustment. The Company has entered into agreements with Zero6 Energy Development, Inc. (“ZEDI”), a national clean energy expert that provides expertise in capital management, development, engineering, and asset management, to develop and construct facilities to provide carbon neutral power to NZ1 via the two limited liability companies: Kingsbury Country Wind Fuel, LLC (“KCWF”) and Dakota Renewable Hydrogen, LLC (“DRH”) (collectively, the “Project LLCs”), respectively, to induce the design and construction of the power generation, transmission and distribution facilities that will serve NZ1. The Project LLCs formed to govern the projects are VIEs. In determining whether the Company was the primary beneficiary of the VIEs, the Company considered both qualitative and quantitative factors regarding the nature, size and form of the involvement with the VIE, such as the role in establishing the VIEs and the ongoing rights and responsibilities; the economic interests deemed to be variable interests in the VIEs; the design of the VIEs, including the capitalization structure, subordination of interests, and payment priority. During the third quarter of 2023, the Company identified that the governance structure and operating procedures of the Project LLCs resulted in the Company having the power to control certain significant activities of the Project LLCs, as defined by Accounting Standards Codification 810 (“ASC 810”), Consolidations. Therefore, the Company is the primary beneficiary of the VIEs, and per ASC 810, must consolidate the VIEs. Prior to the third quarter of 2023, the Company did not consolidate the Project LLCs. The Company assessed the materiality of this correction on the previously issued interim and annual financial statements in accordance with SEC Staff Accounting Bulletin No. 99. The Company concluded that the changes were not material to any of the previously issued consolidated financial statements. The Company’s primary involvement with the VIEs is to fund the deposits in order to induce the contractor to design and construct the power generation, transmission and distribution facilities that will serve NZ1. These amounts funded will be either fully reimbursed upon completion of the project or used as an investment into the Project LLC. Gevo has contractual priority liens against the equipment and constructed facilities under the contracts. A summary of the impact of the adjustment on the Consolidated Balance Sheets for each of the periods ended December 31, 2022, March 31, 2023, and June 30, 2023, respectively, is as follows: an increase to property, plant, and equipment of $8.3 million, $19.0 million, and $19.7 million, and a corresponding decrease in deposits and other assets of $8.3 million, $19.0 million, and $19.7 million. For the period ended March 31, 2023, a summary of the impact of the adjustment on the Consolidated Balance Sheets is as follows: an increase in trade accounts receivable, net, of $0.1 million and an increase is accounts payable and accrued liabilities of $0.1 million. For the period ended June 30, 2023, a summary of the impact of the adjustment on the Consolidated Balance Sheets is as follows: a decrease in accounts payable and accrued liabilities of $0.3 million and a corresponding decrease to deposits and other assets. Additionally, the following immaterial adjustments were made to the consolidated statements of cash flows associated with the above changes for each of the periods ended September 30, 2022, December 31, 2022, March 31, 2023, and June 30, 2023, respectively, as follows: a decrease in the net cash used in operating activities of $8.3 million, $8.3 million, $10.7 million, and $11.4 million, and a corresponding decrease in the net cash provided by investing activities reported for the periods then ended, respectively, as a result of these changes. The reclassification was made for presentation purposes and had no impact on the consolidated statements of operations and comprehensive income.
Reclassifications	Reclassifications. The Company reclassified certain prior period amounts to conform to the current period presentation. The reclassifications included the categorization of depreciation and amortization on the Consolidated Statements of Operations and had no impact on total revenues, total operating expenses, net loss or stockholders’ equity for any period. Significant Accounting Policies Variable Interest Entities. The Company enters into agreements with special purpose entities (“SPEs”), some of which are variable interest entities (“VIEs”), in the ordinary course of business. A legal entity is considered a VIE if it has either a total equity investment that is insufficient to finance its operations without additional subordinated financial support or whose equity holders lack the characteristics of a controlling financial interest. The Company’s variable interests arise from contractual or other monetary interests in the entity. The typical condition for a controlling financial interest ownership is holding a majority of the voting interests of an entity; however, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve controlling voting interests. The Company consolidates a VIE if it is deemed to be the primary beneficiary. The Company determines it is the primary beneficiary if it has the power to direct the activities that most significantly impact the VIEs’ economic performance and has the obligation to absorb losses or has the right to receive benefits of the VIE that could potentially be significant to the VIE. The Company evaluates its relationships with its VIEs on an ongoing basis to determine whether it is the primary beneficiary. See Footnote 20 below for further information.

Nature of Business, Financial Condition and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) along with the instructions to Form 10-Q and Article 10 of Regulation S-X assuming the Company will continue as a going concern. Accordingly, they do not include the information and footnotes required by GAAP for complete financial statements. These statements reflect all normal and recurring adjustments which, in the opinion of management, are necessary to present fairly the financial position, results of operations and cash flows of the Company as of, and for the nine months ended, September 30, 2023, and are not necessarily indicative of the results to be expected for the full year. These statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included under the heading “Financial Statements and Supplementary Data” in Part II, Item 8 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2022. The financial statements at December 31, 2022, have been derived from the audited financial statements as of that date. For further information, refer to our audited financial statements and notes thereto included for the year ended December 31, 2022 (the “2022 Annual Report”).

Variable Interest Entities

Variable Interest Entities. The Company enters into agreements with special purpose entities (“SPEs”), some of which are variable interest entities (“VIEs”), in the ordinary course of business. A legal entity is considered a VIE if it has either a total equity investment that is insufficient to finance its operations without additional subordinated financial support or whose equity holders lack the characteristics of a controlling financial interest. The Company’s variable interests arise from contractual or other monetary interests in the entity. The typical condition for a controlling financial interest ownership is holding a majority of the voting interests of an entity; however, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve controlling voting interests.

The Company consolidates a VIE if it is deemed to be the primary beneficiary. The Company determines it is the primary beneficiary if it has the power to direct the activities that most significantly impact the VIEs’ economic performance and has the obligation to absorb losses or has the right to receive benefits of the VIE that could potentially be significant to the VIE. The Company evaluates its relationships with its VIEs on an ongoing basis to determine whether it is the primary beneficiary. See Footnote 20 below for further information.

Prior Period Financial Statement Immaterial Adjustment

Prior Period Financial Statement Immaterial Adjustment. The Company has entered into agreements with Zero6 Energy Development, Inc. (“ZEDI”), a national clean energy expert that provides expertise in capital management, development, engineering, and asset management, to develop and construct facilities to provide carbon neutral power to NZ1 via the two limited liability companies: Kingsbury Country Wind Fuel, LLC (“KCWF”) and Dakota Renewable Hydrogen, LLC (“DRH”) (collectively, the “Project LLCs”), respectively, to induce the design and construction of the power generation, transmission and distribution facilities that will serve NZ1. The Project LLCs formed to govern the projects are VIEs. In determining whether the Company was the primary beneficiary of the VIEs, the Company considered both qualitative and quantitative factors regarding the nature, size and form of the involvement with the VIE, such as the role in establishing the VIEs and the ongoing rights and responsibilities; the economic interests deemed to be variable interests in the VIEs; the design of the VIEs, including the capitalization structure, subordination of interests, and payment priority. During the third quarter of 2023, the Company identified that the governance structure and operating procedures of the Project LLCs resulted in the Company having the power to control certain significant activities of the Project LLCs, as defined by Accounting Standards Codification 810 (“ASC 810”), Consolidations. Therefore, the Company is the primary beneficiary of the VIEs, and per ASC 810, must consolidate the VIEs. Prior to the third quarter of 2023, the Company did not consolidate the Project LLCs. The Company assessed the materiality of this correction on the previously issued interim and annual financial statements in accordance with SEC Staff Accounting Bulletin No. 99. The Company concluded that the changes were not material to any of the previously issued consolidated financial statements. The Company’s primary involvement with the VIEs is to fund the deposits in order to induce the contractor to design and construct the power generation, transmission and distribution facilities that will serve NZ1. These amounts funded will be either fully reimbursed upon completion of the project or used as an investment into the Project LLC. Gevo has contractual priority liens against the equipment and constructed facilities under the contracts.

A summary of the impact of the adjustment on the Consolidated Balance Sheets for each of the periods ended December 31, 2022, March 31, 2023, and June 30, 2023, respectively, is as follows: an increase to property, plant, and equipment of $8.3 million, $19.0 million, and $19.7 million, and a corresponding decrease in deposits and other assets of $8.3 million, $19.0 million, and $19.7 million. For the period ended March 31, 2023, a summary of the impact of the adjustment on the Consolidated Balance Sheets is as follows: an increase in trade accounts receivable, net, of $0.1 million and an increase is accounts payable and accrued liabilities of $0.1 million. For the period ended June 30, 2023, a summary of the impact of the adjustment on the Consolidated Balance Sheets is as follows: a decrease in accounts payable and accrued liabilities of $0.3 million and a corresponding decrease to deposits and other assets.

Additionally, the following immaterial adjustments were made to the consolidated statements of cash flows associated with the above changes for each of the periods ended September 30, 2022, December 31, 2022, March 31, 2023, and June 30, 2023, respectively, as follows: a decrease in the net cash used in operating activities of $8.3 million, $8.3 million, $10.7 million, and $11.4 million, and a corresponding decrease in the net cash provided by investing activities reported for the periods then ended, respectively, as a result of these changes. The reclassification was made for presentation purposes and had no impact on the consolidated statements of operations and comprehensive income.

Reclassifications

Reclassifications. The Company reclassified certain prior period amounts to conform to the current period presentation. The reclassifications included the categorization of depreciation and amortization on the Consolidated Statements of Operations and had no impact on total revenues, total operating expenses, net loss or stockholders’ equity for any period.

Significant Accounting Policies