Alto Ingredients, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2024
Auditor [Table]
Auditor Name	RSM US LLP
Auditor Firm ID	49
Auditor Location	Rochester, Minnesota
Auditor Opinion [Text Block]	Opinion on the Internal Control Over Financial Reporting We have audited Alto Ingredients, Inc.’s (the Company) internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013. We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets as of December 31, 2024 and 2023, the related consolidated statements of operations, comprehensive income (loss), stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2024, and the related notes to the consolidated financial statements of the Company and our report dated March 13, 2025, expressed an unqualified opinion.